J Lefort Installations
9.89/10
Borehamwood, Hertfordshire
Checkatrade member since February 201410
Public liability insurance is unverified
Services
- Windows and Doors
- Window Fitters
- Patio Doors Installation
- Stained Glass
- Exterior Doors Installation
- Bifold Doors Installation
- Aluminium Windows Installation
- French Doors Installation
- Misted Double Glazing
- UPVC Windows Installation
- Porch Installation
- Composite Front Doors Installation
- Frosted Windows
- Triple Glazing Installation
- Bay Windows Installation
- Glass Replacement
- Stable Doors
- Double Glazing Installation
- Aluminium Doors Installation
- UPVC Doors Installation
Customer Reviews
Write a review9.89 /10
Based on 6 reviews over the past 12 months
Quality of work
10
Reliability
9.83
Communication
9.83
Reviews (271)
10 Professional and top guys!
Posted 22 April
John and his son Archie are so professional in completing our windows. We have also had John for 2 doors. They are very respectful and always tidy up after them selves. The finish is top quality and we would choose John every time.Verified reviewerJob location: WD710 Absolutely Brilliant workmanship
Posted 06 April
John and Archie were exceptionally good. They were 100% reliable, kept us fully informed of the timing of work, what was being done and how it was being done. John also made a few suggestions on what we could do with the new windows & door with regards to layouts and door options but was very clear that it was totally up to us what we chose. This proved very helpful as we changed our mind on the type of back door we chose and we are super happy with the result. If you want peace of mind and an excellent job with a quality product then look no further, John & Archie will deliver quality!!Verified reviewerJob location: WD610 Highly recommend
Posted 02 April
Highly recommend John & Archie they have done an amazing job on my new bifold doors. They are a pleasure to deal with everything went smoothly from beginning to end what a great service.Verified reviewerJob location: AL210 Windows and doors done right !
Posted 01 February
John and Archie did a great job, polite and tidy. Windows look smart and door too. They always kept me well informed too. Overall great guys they delivered on what they promised and were both professional and decent throughout. I believe mine are the 5th set of windows done on my road andI would have no hesitation in recommending them at all.Verified reviewerJob location: AL210 Ash
Posted 27 July 2025
John did a great job on the windows, worked well and efficiently. Also very reliable. Highly recommendVerified reviewerJob location: EN4- SSean Y
9.33 Replaced one one broken triple glazed and one double glazed to triple glazed glass.
Posted 12 May 2025
Excellent job! I have received excellent service from them as well. And price is also very reasonable. I would definitely recommend them to my friends in the future.Verified reviewerJob location: NW7
Photos
Company Info
Owner
Mr John Lefort
Sole Trader
12 years on Checkatrade
VAT Registered
No
Domestic WorkCommercial WorkFree EstimatesInsurance Work Undertaken24 Hour Call-out
For the very best in service, quality & value
We are a well established company working primarily within North London and Hertfordshire, but cover all areas required by our customers. We specialise in the following:
- UPVC & Aluminium windows & doors supplied and installed
- Top security locking mechanisms
- 2 different styles of frame on UPVC products
- Patio, French and Bi-Folding doors
- wide range of composite doors
- Building work undertaken
- Fascias, soffits & guttering
- Porches
All products come with a 10 year guarantee
Please call us for a free quote.