The Window Wizard Double Glazing UPVC Repairs

Double Glazing UPVC Repairs Bexleyheath, Swanley, Dartford

We do not sell or install Double Glazing, a genuine REPAIR ONLY company


Google Customer Feedback

Please take a look at The Window Wizard Customer Feedback on Google search engine.

We are pleased to inform our customers we are listed as a business on Google as The Window Wizard. Therefore our customers can leave Customer feedback directly on to Google Please click here to leave your Google Review

David, is our sole technician and all our customer Feedback, is written about the double glazing repairs that David has carried out. We are not a franchise, furthermore we do not subcontract or employ any other tradesman.  So you can rest assured that you will always have David to carryout any further window or door repairs that you may require.

David has been awarded Customer Care Awards and continues to strive for the best customer satisfaction and workmanship.

Click here to read more about The Window Wizard

Customer Feedback 5* rated

We are very proud and pleased to announce that All our customers have left The Window Wizard, the maximum amount of stars “5 Stars”.

Please see our Customer Feedback left on Google below or enter ‘The Window Wizard Bexleyheath’ into the Google search engine to find more information about our service listed on Google:

Google Customer Review and Customer Feedback The Window Wizard

The Window Wizard Google Customer Feedback and Reviews:

david hayes

Dave visited on time as prearranged and managed to adjust our door as required. No problems since.

Mark M

David turned up at the time agreed and sorted out multiple issues with some doors for me. It ended up being a lot less expensive than I was expecting which was a relief. Top bloke – will be keeping his details and recommending to others! Thanks a million! 🙂

Jack Sharpe

Called up window wizard after looking around on the Internet. Found David local to me and he said he can come round tomorrow and help me out my front door wouldn’t close properly due to misalignment , over the years / fitted incorrectly from day 1 from a glazing firm from the previous owner of the property. Any way dave adjusted it to as best he could with what he had to work with , wish we had tradesmen in other trades like this. And fixed my door handle and was very honest , could of told me it needed a new one but dave sorted it 👌 . Will definitely use again for other stuff. Thanks again David.

Venessa Simmons

A pleasure to hire the services of this company. Great attention to detail from David whilst repairing/realigning some French doors. David identified the issue and was happy to explain this to me whilst carrying out the work. He even provided some maintenance recommendations. Definitely recommend this service for anyone needing a repair.

Susan Lewins

Thank you Such a lovely kind person. Definitely the lock wizard Even knew the make of my window company from 20 year ago and well the porch door. I feel safe again


I wholeheartedly recommend David. I actually called another company first who were so booked up they recommended that I call The Window Wizard who covered my area and I am very glad they did. My bathroom window stopped opening, David explained the most likely causes and costs before the visit. He arrived on time, was very friendly and explained everything that needed doing. He fixed the issue quickly and charged a very fair price.

Amanda Johnson

Excellent service . Found a quick solution to the problem arrived on time and carried out job as described quickly and efficiently

James Bessey

Fantastic service from David! Came and diagnosed the problems with our windows, gave great advice, was truthful and did a great job! Highly recommended!

Diana Lane

David was great from the offset. We had several windows that wouldn’t close/lock properly (which isn’t surprising after 32 years!) and David asked for photos of the windows, quickly determining what needed doing and providing a price. He arranged a date to visit and advised that he would only charge if he could fix the issues. He was very knowledgeable, efficient, pleasant and professional. It comes as no surprise that he easily fixed the issue. Would definitely recommend and should the need arise will use David again. Many thanks!

Phil Waller

We have just moved into the area and had a few issues where the owner, “lets just say, had Bodged some jobs”, on both the back and front doors”. I managed to locate David via a Google search and on the two occasions we have asked him to resolve our issues he has done so quickly, without fuss and the work is exemplary. Thank you very much!

Steve Hayward

This man is the Harry Potter of window wizardry
I have used him twice recently once for a patio door which had not worked properly for 20 years – he mended it in 15 mins so it is the best it has ever been
Second time was for the front door which needed to be slammed in order to shut it – 10 minutes later mended
He was on time each occasion
Great communications
Very reasonable price
Not only all the above but a nice man to boot
If you have anything wrong with locks windows etc this is the man to fix it
He does not deal with blown windows and I understand nothing to do with glazing but everything else first class
If I could give 10 stars I would for this man

Derek Peck

Sent David photos of the items we needed fixing. Came straight back with a quote and arranged date to visit us. Very pleasant chap and did a professional job.

Anish Sharma

Changed the internal lock in the window. Great job overall. Very clean and tidy. Communication was constant and understood the job before coming out.

Jordan Massey

David was great, fixed our issue with the window not closing and locking. Pleasant and professional would recommend.

Oliver Mayar

Great Service – very efficient from start to finish.

Phil Waller

David, was very honest about how he would only charge if he could fix the issue, turned up on time and resolved a long standing issue. Suffice to say we will be using him again. Many thanks !


Removed cat flap from kitchen door and fixed the latching mechanism. Very professional service. Will use David’s services again and would highly recommend him. A+

Manuela Okon


Cherry B

In July 2021, my front door suddenly failed and wouldn’t open from the inside or from outside. I was in France at the time and found The Window Wizard, Bexleyheath on the internet. After sending some pictures of the door locking mechanism to David, he was able to give me a quote within a few minutes. I live in Abbey Wood and David was nearby, so he was able to do the work that same afternoon. My brother was there and told me he did an excellent job and worked quickly. He was also very tidy. The door opens and closes normally now, we had to slam it before. my bathroom window recently failed too. Again I sent pictures of the locking mechanism to David and he gave me a quote within minutes. I was at home when he repaired the windows a couple of days later. He did an excellent Job. I would definitely recommend this company.

Jill Breeze

I explained the problem with my window over the telephone. David explained it could just be the handle which needed replacing or it could be the locking mechanism and he gave me 2 quotes. It tuned out to just be the handle (the cheaper quote). David is very professional, friendly and polite. I would not hesitate in recommending The Window Wizard.

Pauline Davis

I can highly recommend David he arrived on time and carried out repair to patio door lock in a professional manner and cheaper than quoted. I will recommend Window wizard to my family and friends. Thank you.

Shenel Konche


John Kay

Professional and kept to the original estimate. Will highly recommend

Graham Newton

Prompt response, even on a Sunday, to my initial enquiry concerning new hinges for two windows.
David turned up on time. He told me honestly that one window didn’t need new hinges – he just eased it for me. The rest of the job was done quickly and cleanly.
I certainly recommend him

Sarah Halls

Excellent service and David came a day earlier than planned.
Would definitely recommend!

Thanks David for the help

Garry Cavender

Excellent service from David to fix our porch door- thank you so much! Prompt and efficient and really took the time to look in to what could be done to help us. Very quick response to messages and so helpful. Could not be happier with our vastly improved door – thank you so much! You saved us the cost of a new porch! Fantastic service – highly recommend!

Richard Grant

Very pleased with a replacement lock system for our door.

Liz Smith

I could not recommend David highly enough! Arrived ahead of time to fix my broken bathroom window lock. So friendly and professional. Full of good advice. Price was great also. I will definitely recommend to my friends and use again! Thank you so much David!

Nicola Hamilton

Fantastic service from David at The Window Wizard. I highly recommend! I called David for some advice regarding my front door that needed to be realigned, within 24 hours he had attended my property and realigned my front door to stop the issues. Brilliant service – very happy customer!

Rosemary Keys

Prompt and efficient service. David is polite, friendly and professional. Repaired our upvc door that was misaligned and difficult to lock

Rasmus Vinter

Excellent service! We called Thursday and had our windows fixed the next day. Was able to diagnose the problem over the phone and quoted a price before fixing. All a windows can now open and close again. Definitely recommend the Window Wizard!

daniella chatfield

Positive: Professionalism, Quality, Responsiveness, Value.
Dave was responsive from the first message I sent him. Reliable and very efficient. He did all he needed to replace and adjust my doors correctly! So happy with the service. And the bad lock is no more ! Thanks

Kaye Gillard

Prompt appointment and service. Explained every step and what needed rectifying. Sourced an unusual handle and came back to fit the following week. Would not hesitate to use this independent company again. Thank you!

Jacqui Caston

David arrived on time and carried out very complicated repairs to our very old UPVC windows not just a Wizard by name he proved it.


David was punctual and polite. He fixed the problem quickly and efficiently. Gave helpful recommendations on window mechanism maintenance. I would use David again if I have any other problems and I would recommend his services.

Michele Carron

Positive: Professionalism, Punctuality, Responsiveness, Value.
I cannot recommend David and his window fixing services enough – I know have all of the window / door problems that have been bugging me for years all sorted.
He explained what the problems were, and sorted them all, tidied up and left a very happy customer. Thank you

Paul Foskett

Very professional, experienced, clean and polite. Fixed charges detailed in advance. Hinges aligned on door and non opening window – mechanism replaced and now fully opening. Very happy with service.

Doreen Chaffe

Had a problem with a composite door that had dropped and would not lock,
Called on Monday it was fixed on Tuesday morning.
David arrived on time knew what the problem was straight away and fixed it.
I now have a door that closes properly and a smooth locking handle.
Very impressed and would definitely recommend

Margie Yates

Thanks David, for your great work today relining and new locks, saved us a lot of money as was thinking of a new door. I would highly recommend the window wizard very polite helpful never pushing us to buy things we don’t need. Thanks again.

Tony Ide

David appeared exactly on time, presented me with a card,
did an excellent job of fixing my Window Mechanism at a very competitive price. Such a nice guy , no hesitation in recommending him to all

Lira Akhmetov

We are always very pleased with David’s work. He fixed already a few locks in our windows (kitchen, bathroom and backdoor). The window handles are not of standard size in our area (and apparently in the whole area of the estate) and he is now keeping the door handles and mechanisms in stock. Great value for money, when we were first looking for windows locks mechanics around, we received extremely expensive quotes. We were lucky, as David was recommended to us; we found that David’s prices being very reasonable, hence we engaged with David. He is a professional, very reliable. He does his job very quickly and with a great quality. We highly recommend David, the window wizard!

Chris Constantinou

So my fornt door was damaged and I called someone else last year to fix it. They replaced the locking mechanism when it wasn’t needed, took two hours and said the gap at the bottom of the door was unfixable and I would have to buy a new door….The window wizard just came around, and fixed they’re sloppy work and the locking mechanism and the gap at the bottom of the door!!!! AMAZING. totally lives up to the name! Puts the idiots I used last year to shame

Frank Draegert

Great service – arrived exactly on time, removed shoes without having to be asked. Fixed bathroom window that has been jammed for months, left work area clean and tidy and was super patient answering our silly questions. Really pleased and would have no hesitation in recommending. Thank you David.

Karen Lindridge

This is the second time I have used David. Always excellent service, great prices, sensible options and leaves me knowing everything is safe. Thank you.

Ramona Roos

David was recommended to us, proved reliable, flexible in his availability, and punctual on the day. He was courteous, replaced the locking mechanism on our back door and adjusted the door hinges in less than an hour. David went beyond the call of duty, protected the floor and left the area in a clean and tidy state. I would recommend and use The Window Wizard again.

Gareth Fox

David was very punctual, turning up on the dot of the time arranged. He repaired a double glazed window for my elderly mother and completed the work in 15 minutes. He gave me a price over the phone and stuck to the price that had been agreed. David explained what was wrong in very simple terms that my mother could understand and gave good advice on preventing the problem recurring. I would happily recommend David to anyone.

E Phillips

David fixed my window perfectly, quickly and reasonably priced. Will certainly be asking him again should I have another problem with my double glazing.

Stuart Bright

Just getting ready to sell our house so I wanted the French doors to work and have new handles as years of wear have taken there toll. David arrived on time, adjusted the doors, which was made harder due to the fact that most of the adjustment screws were missing, but still managed to get them level and opening/closing correctly. He then fitted a new handle and now the doors feel like quality rather than the clanking and clunking before he arrived. He also charged me slightly less than the agreed price as the job wasn’t quite how he thought it would go, so that was honest of him. Whilst chatting he also measured up another window and gave me some contact details for another job I wanted, it’s always nice to get a contact from another tradesman. From my view point, 10 out of 10.

Roger Lyons

A real expert, nice guy and carries lots of useful stock. Sorted out my awkward French doors brilliantly.

Shelley Hayward

David arrived on time and he quickly fixed the problem with a upvc door which would not lock. He also gave me some tips on how to maintain the locks and fixings. Extremely happy with the service and would not hesitate to use again or recommend to family and friends.

John Travers

Excellent service from David. He repaired a window by replacing the latch mechanism with an obviously better quality item and gave a large amount of advice on how to maintain the window latches and hinges. A genuine nice person to deal with and highly recommended.

Tim Roberts

Great service from David. I had windows with a mixture of issues, loose handles, bad operation, inadequate hinges etc…David gave a very good quote and was able to improve and correct most of the issues. Highly recommended!

Carolyn Martin

5 Stars *****

VS Art Space

Called David last week to fix my window and booked in an appointment for him to come and have a look. Really friendly vibe!! He just came over today and fix the window and it’s now working perfectly. Very professional, gave me his card as soon as I opened the door and got to work. Much appreciated and would defo recommend. Thank you David

Steve Hayward

This man is the Harry Potter of window wizardry

I have used him twice recently once for a patio door which had not worked properly for 20 years – he mended it in 15 mins so it is the best it has ever been

Second time was for the front door which needed to be slammed in order to shut it – 10 minutes later mended

He was on time each occasion

Great communications

Very reasonable price

Not only all the above but a nice man to boot

If you have anything wrong with locks windows etc this is the man to fix it

He does not deal with blown windows and I understand nothing to do with glazing but everything else first class

Chris Wilson

Excellent service from an experienced professional. No job too difficult for David who worked hard to resolve some niggling issues in addition to the work I asked him to do. Highly recommended.

Ronald Scales

Very pleased with the response and speedy attention to my problem. He attended the next day following my phone call and completed the job quickly and efficiently. Very happy to recommend David.

Malcolm Rodwell

David quickly responded to our call and made an appointment for the next working day. He dealt with our patio door problem and even gave us some tips on lubricating the locking mechanism. Totally pleased with the service he provided.

Daniel Stranders

Price quoted before prompt arrival. Sorted the problem straight away and even fixed an extra problem I had at no extra cost. Brilliant. Would definitely use him again and recommend him to anyone who needed this type of problem fixed.

Elaine Jessa

True professional, I am so happy with the work carried out today. Honest, punctual and a great job done! Highly recommend the window wizard to everyone!

Markus Miller

Efficient and friendly. Great price and service, would definitely use again. A++

Russ Huntley

Had David round to fix failing hinges on a d/glazed opener, prompt service, price as per telephone quote, no mess left, would thoroughly recommend, easy guy to talk to and certainly knows his stuff.

Gordon Macbean

Quick communication, came on time and resolved the issue for less than originally quoted. Also gave me advice on how to maintain the system and make minor adjustments according to weather conditions if need be. Would happily recommend David to others. Service with knowledge and quality.

Marion Fricker

David has just been to fix our conservatory door, he arrived on time and did an excellent job. I would definitely recommend him.

Denise Thornton

Excellent serice. Came out on time and the price came in less then quoted. A genuine chap and knows his stuff. Thank you.

Luke Hallard

After a break-in at home, David was able to come out at very short notice to make an emergency repair to my front door. Very honest and reliable tradesman, with transparent pricing. As he only repairs rather than fits new doors, he was able to share some helpful impartial views on the best way to improve the security of the entryway.

Alison Marrs

David came the same day that I called about my broken window. It wouldn’t open and David explained why in easy to understand terms. He fixed the problem quickly and easily. The cost was explained up front, and also when David arrived, so there were no surprises or hidden costs. He cleaned up before he left and he was a pleasure to have in the house. He was a definite hit with my 9 month old daughter!

Dave D

Very professional and honest service. Dave gave me two prices before attending depending on what he would find when he arrived. He diagnosed the problem and fixed our door and charged the cheaper quote (wow ! My faith has been renewed in mankind) A very honest guy who i would recommend highly . My wife found Dave to be a very nice man who explained everything he had done.

Cornel Chin

Exceptional service! David is well mannered and very knowledgeable. Very punctual and reliable. Highly recommended.

Samuel Adesoga

Great guy .. Very straightforward and was able to sort us within a few days

Gemma Bailey

Fast, efficient, helpful. Would definitely recommend

Malcolm Jeffs

Excellent professional and prompt service from Dave – I would not hesitate to call on him in future and cannot recommend him more highly.

Tony Newman

Arrived on time, having diagnosed the fault over the telephone. Gave a quote, striped the door then found the fault and ordered a new part. Arrived on time again with the new part , fitted and realigned the door. Kept to the quote. Perfect service, I would recommend him as top-notch.

Gill Griffith

Absolutely delighted with the service. David was the only trader who was willing to visit to resolve the issue with my upvc door and arrived at the agreed time. He explained what the issues were with the door and how to avoid issues in the future. Totally professional and efficient and his prices are clear and more than reasonable. Not once was the work being undertaken exaggerated and there was no hidden agenda/cost. David did such a good job I probably won’t need to call him for some time but I will definitely recommend him to family and friends. Thanks again

Linda Taylor

Window Wizard David Fryer has worked his magic yet again! He has come to our aid on several occasions for double glazed door and window problems. And yesterday he promptly and efficiently sorted out a window that wouldn’t shut and a window that wouldn’t open. Highly recommended!

Donna Poppy

Brilliant job – just what I wanted. Will be calling David again.

S Swaisland

The Window Wizard, definitely as the name suggests. David came in and sorted out my double glazing hinges and lock with a cheery disposition . He replaced various hinges , some jammed, others broken with no problem at all, the lock that isn’t made any more, he found a solution to it. All done with professionalism and ease. Definitely a 5 star job.

Lynn King

Excellent response and service from David at The Window Wizard. So nice to receive great service from qualified and knowledgeable tradesman these days. Would have no hesitation in recommending The Window Wizard and in fact have already done so to a number of our friends and neighbours.

Sean McGourty

Friendly, clear and easy. Provided excellent service with clear upfront pricing. Would highly recommend

Valeria Collins

Brilliant job – just what I wanted. Will be calling David again.

Wendy Parker

David was really helpful and got the job done with the minimal of fuss. He explained what as wrong and what needed to be done to fix it. He also told me in advance what the cost would be, which was very reasonable! would definitely recommend.

John Cross

Phoned David to arrange an appointment for the date and time to suit us.He was very polite and diagnosed the problems with two windows straight away ,then replaced the locking mechanism’s in them.He also lubricated the handle locks and the window hinges leaving them working like new ! The price was as quoted at the first call to arrange repair. Unusual for us to find someone that was a pleasure to deal with and we would definitely recommend and use again if needed. Pity we could not give him 10 stars.

Gerry Smith

I found the Window Wizard to be reliable, efficient and professional, and I will use them again should the need arise.

Tony Grogan

What a good service. David Knows what he is doing and does it well.
I thoroughly recommend the Window Wizard from Bexley.

Katherine Carr

Fast, quick and efficient service. Would recommend this wizard.

Meghan Cole

Agreed price over the phone arrived on time cleaned up after himself. Gave good advice on both my windows and door would definitely recommend.

Harvinder Bhogal

I had issues with quite a few windows and a door not closing properly at my home. I called the office and they quoted me a very reasonable figure over the phone to which I agreed to straight away. Dave came out within two days and fixed all of the issues with no hassle. He is very experienced in the industry and knows exactly what he’s doing. I’d highly recommend their services if you have any issues with your windows or doors.

Alex Badger

Great experience. Called Dave for an emergency window repair in our new house. I was booked in for his first appointment the next day, and he arrived on time despite bad traffic. Very helpful; he took a look at other window repairs that were needed and gave contact details for another reputable trader for the jobs he couldn’t do. Will use Window Wizards again!

Ann Anderson

Quick, friendly and efficient service. Repair took place within 24 hours of initial phone call. Identified the problem with front door quickly and explained in detail what needed to be done. Door was re-aligned and now shuts perfectly. Also replaced a broken window handle. A job well done, would recommend.

Martyn Peattie

Called Dave after a really bad experience . He was very informative , turned up when he said he would, fitted my hinges and left having cleaned up after himself. Great work would highly recommend him. Wish I had known about him before

Juliet Christey

Excellent service from start to finish. Quoted price for work very fair, when Dave arrived he worked quickly and efficiently and actually reduced the price as less needed to be replaced than originally thought, he also noticed that the doors .. Excellent service from start to finish. Quoted price for work very fair, when Dave arrived he worked quickly and efficiently and actually reduced the price as less needed to be replaced than originally thought, he also noticed that the doors were misaligned and sorted this out at no extra charge. I would not hesitate to recommend him to anyone.

Jeremy Ayre

Flexible on making and changing appointments, arrived on time. Diagnosed problem quickly, quoted price before fixing. Attention to detail was superb and left window like new. Highly recommended

Ousman M’Bai

I recommend Dave without hesitation. A highly competent professional. I contacted Dave to repair the lock on my double glaze sliding door. Unlikely many in the trade who would insist on initial call out to diagnose the problem before the job is done, Dave uses modern technology to save the customer a lot of time. He asked me to send him photos of the door taken from several different angles. He quickly established what the problem was.

When he arrived at the property, he already knew what to do. The job was done in minutes and I was very pleased. The door is now in perfect working order. It is the same door that many suggested wrongly that I should replace with a new one at enormous cost. So Dave has saved me a lot of money. A truely decent man on a mission to deliver quality service to his customers.

Caroline Holland

Wow within 20 minutes 4 months worth or annoyance was sorted and peaceful. Having been stung before with a hefty bill and the problem not sorted. We were reluctant to call anyone else out to sort our problem!! But not being able to afford a new door, it needed fixing!! Dave came out early the next morning after 1st contact and rectified the problem within 20 minutes!! I will definitely be recommending his services to friends and family in the future.
Well worth the money he has charged. Thanks Dave great service xx

About The Window Wizard Bexleyheath

We are a local double glazing repair company, equally important a family run business. Therefore we can uniquely offer a personal service, with the same tradesman every time. The Window Wizard is owned and run by husband and wife, David and Clare. In addition, when you call you will always speak to either Clare or David.

You can also read our customer reviews here.

David specialises in Repairs to conservatory windows and doors. Not to mention the technical side of double glazing repairs such as broken multi-point door locks. Because David is and expert he relishes in the more complex repairs that other double glazing repairs are not capable of.

Thank you

First of all I would like to say a big Thank you to our very kind customers who have left us customer feedback. Furthermore we truly appreciate your opinion and comments which means a lot to both of us.

We are here to take phone calls, appointments and quotations; Monday-Sunday 8am-8pm

As a result of your Google Customer 5* Reviews we would especially like to thank you and will continue to provide the best service to our customers.

We would like to thank all our customers, who have left us feedback on our own website, and Google. As a result of all your effort and time taken, we are truly grateful. In addition if you require any further help, please do not hesitate to contact us.

All reviews and feedback comments are unedited and submitted by genuine customers of The Window Wizard for your peace of mind.
About US – The Window Wizard – Call: 020 8310 4193 – Mobile: 079 5058 2631
UPVC Double Glazing Repair for UPVC windows, doors and locks
Service Type
UPVC Double Glazing Repair for UPVC windows, doors and locks
Provider Name
The Window Wizard,
The Quadrant,Bexleyheath,Kent-DA7,
Telephone No.020 8310 4193
Area covered
Bexleyheath, Dartford, Crayford, Swanley, Welling, Wilmington, Thamesmead, Sidcup, Erith
Google customer reviews about The Window Wizard. David has over 25+ years’ of experience, striving to offer great customer service and satisfaction. David arrives on time for appointments and turns up when he says he will. We will only charge you for work and repairs that actually needs doing.

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