Endorsed by Which?

KJM Windows and Conservatories

4.9

81 Reviews

Opening Hours
Today - 09:00–17:00
  • Monday 09:00–17:00
  • Tuesday 09:00–17:00
  • Wednesday 09:00–17:00
  • Thursday 09:00–17:00
  • Friday 09:00–17:00
  • Saturday 09:00–14:00
  • Sunday - Closed

Organisations and Awards

FEBRUARY 2024

About

KJM Windows and Conservatories an multiple award winning company were formed in 1983. Over the years KJM has become a well established and a reputable glazing company, which has gained the trust of thousands of home owners and businesses alike! To date we have installed over £90,000,000 of glazing products. Our diverse range of materials gives you the options that you require. We don't just sell PVCu, but offer timber and aluminium as well. This is backed up with a comprehensive 10 year warranty (insurance backed) that has a proven record. We have many accreditations, including G11, G13, G14 and G15 Installer of the year finalists, Glass and Glazing Federation (GGF) members, Hampshire Trading Standards approved and of course Which? Trusted Traders. Sales calls are free, without pressure and our pricing is competitive. There is no hype or special "buy one get one free" offers, just good honest pricing. Give us a try, you wont be disappointed.

What we do

  • Glaziers

    • Double glazing installation
    • Timber windows
    • Sash windows
    • Window consultants
    • Aluminium Windows
    • Double glazed units
    • Double glazing repair
    • Replacement window services and repairs
    • Stained glass
    • Triple Glazing
    • UPVC Windows
  • Conservatories

    • Hardwood conservatories and orangeries
    • Sun Lounge
  • Doors

    • Patio doors
    • Timber doors
    • Bi-fold doors
    • ​Aluminium doors
    • Composite doors
    • Front door
    • French doors
    • UPVC doors
    • Door repairs
    • Orangeries

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
81 reviews
Customer Service
4.9
Quality
5.0
Value
4.9
Sort by
Full house replacement windows
Customer Service
Quality
Value
KJM offer a fantastic high level of service & good value for money. Their team of fitters are second to none. They were extremely hardworking, professional, polite team. They were more than happy to answer any questions I had. I can honestly say that the guys were meticulous with cleaning up at the end of each day. I would strongly recommend KJM and have already recommended them to my neighbors. Keep up the good work KJM.
ollycush Posted on 18/02/2016 , work completed 18/02/2016
Replacement windows and door
Customer Service
Quality
Value
We had 2 guys installing windows and a door this week. We live on a main road out of Southampton, and it can get very noisy. The windows are great quality and reduced the noise to a quiet hum. The 2 guys were a pleasure to have in the house. Polite, cheerful, tidy and prompt.
Customer in Southampton Posted on 04/06/2019 , work completed 04/06/2019
Secondary glazing on 18th century cottage next to railway line
Customer Service
Quality
Value
KJM replaced old secondary glazing in six windows in my old cottage. The work was done quickly and to a high standard. Three of the upstairs windows were done in high spec acoustic glass, and this has definitely helped to deaden the noise from the trains. The work was done in one day, and the windows were left extremely clean and tidy. There was some replastering work needed on the reveals where the old glazing came out, but this was anticipated as we wanted a wider gap between the windows and the secondary glazing to improve acoustic and thermal performance. KJM gave me a good price, were efficient, and I am very pleased with the job.
Customer in Somerset Posted on 14/01/2019 , work completed 21/12/2018
KGM gave excellent service from the initial meeting to discuss our requirements through to efficent installation and prompt problem solving
Customer Service
Quality
Value
Our requirement was to replace 4 double-glazed units in two 35-year-old large windows (one with 6 panes & the other with 3). We had 3 quotations and the KGM Sales Manager who visited our home was head and shoulders above the others in his technical knowledge. He recommended that we replace all the glass to avoid a visual difference between the new and old, and that we replace the aluminium frames because of the much better thermal properties of modern frames. It was agreed that we would retain the mahogany frames into which the aluminium frames were mounted. When it came to the installation and the first aluminium frame was removed an unforeseen problem came to light - the sides, top and bottom of the old frames were "stepped" whereas the new ones were flat and would not fit. The installers phoned the office and the MD and Sales Mgr were on site within 40 minutes. They were extremely apologetic and soon decided that either in-situ modification to the wooden frames was required or new frames. The carefully removed frame and glass were reinstalled. Within two days we were told that new mahogany frames, stained to match all the others in the house, would be supplied in 3-4 weeks. The installation was then completed in two days. Aidan and Carl worked efficiently, neatly cleanly and tidily. No touching up was needed inside and very little outside. I have no hesitation in recommending KGM for all aspects of their work but especially for their problem solving skills.
Customer in Hampshire Posted on 23/09/2019 , work completed 17/09/2019
Quick, reliable and brilliant work
Customer Service
Quality
Value
Really impressed with KJM - a brilliant experience from start to finish. From the initial visit and measurements to the installation work itself, the experience couldn’t have been better. The installation work was completed quickly and conscientiously, and the quality finish is superb. Very satisfied customers.
Customer in Hampshire Posted on 16/03/2021 , work completed 08/03/2021
Out of warranty work
Customer Service
Quality
Value
My new door was fitted sixteen months ago but had an alignment problem. I called KJM who immediately organised an engineer to visit to rectify the issue, all at not cost, even though the warranty had expired. I am particularly impressed with your pride in delivering customer satisfaction, even though my door was fitted around sixteen months ago. This level of pride and commitment has not gone unnoticed. You can be sure that KJM is on my list of top quality companies and therefore receive my highest recommendation. Thanks once again to KJM for a truly outstanding service.
Simon in Hampshire Posted on 20/04/2022 , work completed 14/04/2022
The trader replied (on 29/04/2022)
Simon, thank you for taking the time to review our after-sales service. I do believe that the door would still have been in warranty, so I could not let that comment go without a reply to you. However whatever the cause, we do try and maintain the best customer service we can, something that has not been as good as I would of liked during the darkest days of COVID. Hopefully, that has gone. Thank you again
Excellent installation
Customer Service
Quality
Value
KJM installed 4 windows and a new front door for us. Really everything was faultless. The quality of the products is great, the ordering process went smoothly, and the installation was first class Aiden and Josh were the installers. They worked well as a team, there was no redecorating required, they showed creativity in overcoming any issues in the fitting, and kept me informed at all stages. Everything was also very clean when they were done. Good job!
Simon in Hampshire Posted on 04/05/2022 , work completed 14/04/2022
The trader replied (on 25/05/2022)
Simon, thank you for taking the time to provide us with a Which? Trusted Trader review, it is very much appreciated. Its great to hear that the whole process from sale to product and installation is recommended. Thank you again
Fitting of bi-fold doors and front door
Customer Service
Quality
Value
We shopped around to find a suitable product from a reputable company and chose KJM. No hard sell, the salesman attended, and was very informative and helpful. As to the installation, Aidan, Josh and Will were very helpful and provided very good advice, were clean and tidy and provided an excellent finish. I would definitely recommend this company and its installers. All in all excellent quality and reasonable price
Customer in Hampshire Posted on 25/06/2022 , work completed 24/06/2022
New Doors and Front Door
Customer Service
Quality
Value
The quality of installation was superb. Brilliant communications from the initial appointment(salesman was great and not pushy) right through to final completion. 2 operatives were amazing , so helpful and respectful to our home. Its clear they are very proud to work for KJM. Qulaity of windows are excellent and we love the new front door. Just makes us feel safer in our home. Highly recommended
Customer in Hampshire Posted on 22/09/2022 , work completed 26/08/2022
The trader replied (on 13/02/2023)
Good afternoon thank you for taking the time to write us a five star review. It looks as though every department has excelled and met my expectations with regards customer service. Thank you so much again
Bay Window
Customer Service
Quality
Value
A professional Job from start to Finish. A great price. You will not regret using KJM Excellent time keeping. The window replacement happened ahead of schedule which was great.
Customer in Hampshire Posted on 21/02/2023 , work completed 19/12/2022
The trader replied (on 25/02/2023)
Hello from all the team at KJM. Thank you so much for taking the time to share your experience of using KJM, it is very much appreciated. 5* in every category is impressive! Thank you again