Small window replaced.
“Work done quickly and as expected.”
Customer in London ( 1 ) 22 June 2018
9 out of 10

Bathroom window fitted
“Jason was very friendly and professional, he did a great job and will definitely be using him for future work.”
Customer in Harrow ( 1 ) 15 June 2018
10 out of 10

Fitted double glazed window lock.
“Professional job done and all in working order.”
Customer in Feltham ( 1 ) 7 June 2018
10 out of 10

New double glazed window.
“I can't recommend enough. The window I needed had to be custom made, he came the same day to fit it! Very happy as I didn't feel safe with no window. He was very good with my kids to, making them laugh etc.”
Customer in Hayes ( 1 ) 29 May 2018
10 out of 10

Window replacement
“Honest working”
Customer in Harrow ( 1 ) 20 May 2018
10 out of 10

New window fitted
“Very happy. Jason did a good job and everything was as expected. Will definately use him again in the future.”
Customer in Northolt ( 1 ) 14 May 2018
10 out of 10

Old kitchen windows removed and 2 new double glazed windows installed.
“We were very happy with the work. Beforehand Jason gave helpful advice on options for the new windows together with a competitive quote. The windows were ordered very quickly and the work was completed to a high standard. Jason was also very friendly and pleasant to deal with. We would recommend WindowAce Double Glazing and will undoubtedly be using Jason again when we come to replacing our other windows.”
Customer in London ( 1 ) 5 May 2018
10 out of 10

1.    Replace glass toFrench door.
“Very happy with the work. Clean and tidy work.”
Verified by SMS–
Customer in Harrow ( 1 ) 8 October 2016

Replacement of double glazing panel.
“Excellent work.”
Verified by SMS–
Customer in London 7 October 2016

Window repairs.
“Completed on time and all went well from initial contact to finish.”
Verified by SMS–
Customer in Royston 8 September 2016

Replaced two double glazed windows.
“I called Jason after work one evening regarding two double glazed windows that needed replacing, he was at our house within 2 hours which was super convenient given we both work in the city. After taking measurements that evening Jason then returned 2 evenings later and fitted the new windows. Very efficient and at a good price. We would recommend his services.”
Verified by SMS–
Customer in London 1 September 2016

Replaced double glazed unit
“Excellent, clear and accurate costing of the job, Price agreed was the price we paid. Thank you so much, job well 
Verified By Email–
Customer in Wembley 4 August 2016

Replacing misted glass and repairing window hinges.
“Work was done well, he gave me information and a full written guarantee for work undertaken.”
Verified by SMS–
Customer in Harrow 2 August 2016

New front door fitted.
“Jason did a clean, tidy and speedy job.”
Verified By Email–
Customer in Harrow 1 August 2016

Replacement patio doors and kitchen window.
“Excellent workmanship. 
High quality fitting. I would definitely recommend WindowAce Double Glazing.”
Verified by SMS–
Customer in Harrow 16 July 2016

Complete replacement of all windows and porch door.
“Nice bloke who knows his craft well and takes pride in a job well done. Have already recommended to several people and will definitely use again. Very satisfied.”
Verified by SMS–
Customer in Greenford 15 July 2016

Installed two bay and two casement windows.
“The work was delivered on time and was high quality. Jason is a professional and his experience is evident in the end product. Very happy with the work.”
Verified by SMS–
Customer in London 14 July 2016

Front porch, 2 bays and French doors.
“Jason was punctual, thorough, gave a very competitive quote and did a very good job. Would definitively recommend.”
Verified By Email–
Customer in Harrow 1 May 2016

1 new UPVC front door double glazed, 1 new UPVC front window.
“Totally satisfied. Treated well. Thanks.”
Verified By Telephone–
Customer in Harrow 4 March 2016

Lock repair and window replacement.
“Jason arrived on time. He was very polite and he gave us great advice. Others would have charged much more. We would be more than happy to recommend him and use him again.”
Verified by SMS–
Customer in Wembley 20 February 2016

Double glazing unit for internal door
“Friendly, helpful and obliging.”
Customer in Harrow, 19 February 2016

Repair of double glazed window.
“Very friendly and quick, very pleased, thank you.”
Customer in London, 14 December 2015

Fitted do double glazed windows for our bedroom.
“I'm very much satisfied with the work. It was quickly done and the cost was also ok.”
Customer in Harrow, 2 December 2015

Full fitting of a bathroom and a kitchen window.
“Jason was very honest, polite, fast, efficient and did exactly what he said he would do. It was nice to be able to deal with just the 'one' person rather than deal with a receptionist, salesperson, delivery people and installers- I've done this before with big national companies and it ends up like Chinese whispers! Really pleased with the work done at a fair price as well.”
Customer in Wembley, 18 November 2015

Installed and fitted 6 double glazed windows.
“I would definitely recommend Jason! Excellent workmanship! Neat and tidy. Reliable. Good value for money.”
Customer in Harrow, 8 October 2015

Replaced broken handles on bathroom windows.
“Excellent job. Explained exactly what was wrong as was on time and on 
budget. Was straightforward and honest about the job at hand.” Customer in London, 16 September 2015

Replaced pane of glass.   Scores: 9.5 out of 10
“Work was completed quickly and neatly.”
Customer in Greenford, 7 September 2015

UPVC window repair.   Scores: 10 out of 10
“My tenant was having issues with opening/closing windows. It turns out that the hinges of the windows had become faulty which resulted in the window coming off. Jason fixed the windows without any issues and even sorted out the loose lock on the front door for no extra charge. He was extremely professional and courteous. I'm very happy with his work and highly recommend him.”
Customer in Greenford 5 September 2015

New double glazed window hinges.   Scores: 10 out of 10
“Repair of four window hinges and replacement of one window handle was done efficiently.”
Customer in Harrow, 26 August 2015

2 new pairs of window hinges   Scores: 9.5 out of 10 “Efficient job.”

Customer in London, 25 August 2015

New clear double glazed unit.   Scores: 10 out of 10
“We are retiring customers, they did work to 
high standard both times. Prompt and efficient.”
Customer in Ruislip, 21 August 2015

Double glazing.    Scores: 10 out of 10
“Excellent service and workmanship.”
Customer in Harrow, 19 August 2015

Replacement of patio door glass.   Scores: 9 out of 10
“Excellent service, very efficient and kept his work.”
Customer in Pinner, 15 August 2015

New front door handle and Yale security barrell. New window locking mechanisms. Scores: 8 out of 10
“Work completed as requested the process was explained to me so there were no 
surprised or extra charges. Happy with the work carried out.” Customer in Watford, 8 August 2015

New lock on window.   Scores: 9 out of 10
“Very happy with service.  Job 
done efficiently.” Customer in Stanmore, 6 August 2015

Replace windows in bathroom and repair window in dining area.   Scores: 9.8 out of 10
“Jason gave an indication of the price over the phone, came on-site a couple of days later as agreed to measure up and helped understand the window options and subsequently provided the cost to repair. Jason then came on-site the following Saturday to fit the windows and repair the hinges on 
another window as agreed. Really good job by a local tradesmen and will use again in the future.” Customer in London, 25 July 2015

Replacement ofU PVC front door.   Scores: 9.8 out of 10
“Very happy with the service and product. Appreciated his efficiency and determination to finish the finish the job on rain.”
Customer in Greenford, 24 July 2015

Fixed two windows.   Scores: 10 out of 10
“Did first job well in rental property, so came back to fix 
window at home. Satisfied customer.”
Customer in London, 20 July 2015 

Change condensed windows and change lock.   Scores: 10 out of 10
“Good job.”
Customer in Harrow, 19 June 2015

Replaced doubled glazed glass /replaced locks on doubled glazed units.   Scores: 9.5 out of 10
“A seasoned professional. Will definitely use again.”
Customer in Wembley, 28 May 2015

Replace all windows.   Scores: 9.3 out of 10
“Good job. Would use again.”
Customer in Northolt, 21 May 2015

New window handles fitted to replace unsafe ones.   Scores: 9.5 out of 10
“Very pleased with 
attention to detail and pleasantly surprised that new handles could still be supplied and fitted. A very worthwhile job and efficiently carried out so promptly.”

Customer in Harrow, 12 May 2015 

New window hinges.   Scores: 10 out of 10
“Work done to a high standard and Jason was very helpful on 
advise, would use again without hesitation.”
Customer in Ruislip, 8 May 2015 

Replacing patio doors in kitchen and a misted up panel in lounge.   Scores: 9.8 out of 10
“Jason kept in touch from the initial contact for a quote right through to completion of the job. He was 65% cheaper than other, turned up exactly when he said he would and I am delighted with the work. Will use him again for any glazing work I 
need done.”

Customer in Harrow, 7 May 2015 

Kitchen window glass unit replaced.   Scores: 10 out of 10
“Received good service from Jason, he kept in touch and arrived on time (in fact half 
a hour earlier). Would recommend him.”   Customer in Northolt, 27 April 2015

New patio doors, cat flap into existing door and previously new windows.   Scores: 10 out of 10
“Good work and gave good advice on patio doors according to 
the space we had available.”
Customer in Pinner, 23 April 2015 

3 double glazed units replaced.   Scores: 10 out of 10
“Excellent service. We needed windows replaced which had got condensation in them over the years and this work was completed to exactly as we requested, there was no pressure to have the whole window unit replaced or at the worst completely new double glazing for the whole house (which some companies do try to convince you is best). The windows look fine on installation but have a
5 year guarantee if anything goes wrong.”
Customer in Northolt, 16 April 2015 

Changed glass in two patio doors.   Scores: 10 out of 10
“Excellent quality of workmanship. Fast, professional, and above all competent. Minimum of fuss. Excellent all round. I would not hesitate to recommend this company.”
Customer in Northolt, 2 April 2015 

Toughened double glazed unit on kitchen door.   Scores: 9.8 out of 10
“Jason very chatty, clean, quick and tidy.”  
Customer in Pinner, 11 March 2015 

Replacement Patio Doors and Frame

“Sliding patio needed replacing. I was surprised by how competitive the Window Ace estimate was after sending an email with a photo and dimensions. I decided to ask Jason to visit and quote as his firm is FENSA and GGFi Registered. There was no hard sell, all questions were answered satisfactorily and the estimate was not increased for the quote. The doors were delivered within nineteen days and fitted on the 20th, well within the six weeks I had specified. Dust sheets were used and all rubbish removed. The work and standard of finish look excellent.”–

Customer in Wembley, 19 February 2015


Double-glazing repair (3 windows).
“I had condensation inside the double-glazing window panels (rather unluckily, 3 of them went at the same time...). I rang a few Checkatrade companies, but all were either busy or expensive. Then I rang Jason! I was given a quotation over the phone, and he popped round the same evening to confirm the measurements. The replacement window units arrived exactly when Jason said they would, and everything was installed in under an hour. All in all, 100% excellent experience - friendly and fast, and the new windows are spot on. I would definitely use WindowAce for any future jobs.”– Customer in London, 13 February 2015
Replaced glass in kitchen door.
“Half the price of company insurer were going to use. Came round in evening too so was very flexible. Nice bloke.”–Customer in London, 5 February 2015


French door window.
“Excellent job! Well recommended.”– Customer in Harrow, 30 January 2015


New double glazed unit to kitchen door.
“Jason is friendly and reliable; he came on the day he promised.”
Customer in Wembley, 19 December 2014

Customer Reviews

173 reviews   -   11 reviews in the last 6 months,

The reviews below represent the customer's opinions and are not the views of Checkatrade

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