Endorsed by Which?

KJM Windows and Conservatories

4.9

86 Reviews

Opening Hours
Today -
  • 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.

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

4.9
86 reviews
Customer Service
4.9
Quality
5.0
Value
4.9
Sort by
We wouldn't go anywhere else
Customer Service
Quality
Value
To spread the load, KJM have installed windows twice and we have just booked the last phase. They have been very professional each time, from the initial measuring up, then the survey and finally the fitting. I cannot recommend them highly enough. The quality of the finished product has been very impressive, a real upgrade for us.
Customer in Wiltshire Posted on 04/03/2024 , work completed 04/03/2024
The trader replied (on 13/03/2024)
Firstly thank you so much for the 5* review and also for being a returning customer. I am really pleased that you recommend us highly and that you also rate our products. Thank you again. Mark and all the team at KJM.
Brilliant work and price
Customer Service
Quality
Value
KJM recently installed triple glazed windows and doors very efficiently at the back and sides of the house. Very very pleased with the work completed, the total cost and the very friendly manner in which the whole matter was carried out and no pressure to complete the order. Thoroughly recommend KJM. Am now proceeding with getting the front of the house triple glazed. Many thanks once again
Customer in Hampshire Posted on 04/03/2019 , work completed 26/02/2019
Install french doors
Customer Service
Quality
Value
I have found working with all of your staff a fantastic experience and your installation has made a huge difference to the refurbishment of our home. Please extend particular thanks to Anthony who had immense patience helping us to work out what we wanted and needed. When we come to doing a full replacement of the windows in a few years you will definitely be our first point of call.
Customer in Hampshire Posted on 03/02/2019 , work completed 23/01/2019
Fast, expert, fair
Customer Service
Quality
Value
We had a problem with a PVC replacement door not locking. We asked locally and got recommendations for KJM. Called late afternoon to speak with the owner and received a promise for a visit the next morning. Mark turned up at 08:00, and by 08.10 had the door working again. Didn't stop there though. Spent the next 15 minutes adjusting everything and anything until the door fitted and worked better than at any time since it was fitted. After all that, refused to take a payment since he'd been at another appointment a short drive away. I can't recommend this group and it's boss highly enough.
Customer in Hampshire Posted on 30/09/2021 , work completed 30/09/2021
The trader replied (on 10/03/2022)
Little things can make a customer happy, I'm glad I managed that. I hope all is well at your end? Our conversation I will remember forever. You take care. Mark
New doors, new windows and a new solid conservatory roof
Customer Service
Quality
Value
I recently used KJM to have all the external doors and windows replaced in my home and to have a solid roof installed on an existing conservatory. From start to finish, they have been absolutely outstanding. No pushy sales and no complaints when making changes to the styles of doors and windows we wanted and we made lots of changes. Communication was brilliant and I was kept up to date on a regular basis (particularly as I had the works done over December and January and weather was a concern). The teams who undertook the work were excellent and very hard working often working in very cold conditions. Every evening they would clean up and leave everything spotless. Windows were changed without a need to redecorate. Doors and lovely and work faultlessly. The new conservatory roof has made such a difference and I now have a room I can use. They even came back and spent several hours cleaning the entire conservatory inside and out. All the staff are outstanding and really friendly and the quality of the work cannot be faulted. I couldn't be happier with the results.
Customer in Wiltshire Posted on 21/01/2025 , work completed 21/01/2025
The trader replied (on 23/01/2025)
Thank you so much for taking the time to provide KJM with a Which? 5* review, it is very much appreciated. It is so pleasing to see that the entire KJM team worked to the very highest standards. Thank you again Mark & all the team at KJM
Window replacement and conservatory new fixed roof and windows plus external doors. Great service and workmanship.
Customer Service
Quality
Value
A great company with very customer-centric staff, from the sales team to the project manager and window fitters. Excellent workmanship, clean and tidy and friendly. Good quality products, we are very happy with the finished product. Delays with suppliers was dealt with professionally with great communication. Delays were also recompensed fairly. We would recommend using this company for all your windows, doors and conservatory changes.
Customer in Hampshire Posted on 30/01/2025 , work completed 20/12/2024
The trader replied (on 31/01/2025)
Thank you for taking the time to review KJM. It’s great to see the sentence “Excellent workmanship, clean and tidy and friendly” We always strive to be the best in the industry, thank you again Mark and all the team at KJM
Fanatastic Work, Great Customer Service and Value for money
Customer Service
Quality
Value
i have had 2 jobs done by KJM the first was an emergency pain of glass that they came round measured up and secured the window from the weather and did a great price for me to get it repaired. the second was a replacement door again the measured quickly and the fitted the door with fantastic workmanship. they are a very good company to deal with they are friendly with great customer service. the quality of there work is fantastic and they are very well priced.
Customer in Hampshire Posted on 04/09/2024 , work completed 19/06/2024
Great job
Customer Service
Quality
Value
Work done to a very high quality. Cleaned after, perfect. Door was a better than thought as heavy but so light on hinges. made so much difference to front of house... bit of class... Windows in house are 25 years plus from KJM so new door had to come from them. So pleased... if they see this thank you...
Customer in Hampshire Posted on 26/11/2020 , work completed 12/09/2020
Fantastic work - efficient and tidy
Customer Service
Quality
Value
KJM came to replace 6 windows including a bay, front door and French doors where a window was prior to the job. They deserve huge praise for their quality of work, which is outstanding. They were more than happy to make small amendments where they could, even asked us how we'd like certain things I wouldn't have even thought of. They walked us through every step of the process, the what's and why's and made sure we were 100% happy with the result. They were extremely accommodating with some of my OCD wishes for continuity and aesthetics. They were true to their word and arrived when they said they would; if not a little earlier. They also cleared up all mess they made, to the point of mopping the kitchen floor! After all is said and done, you wouldn't have even known they were here. Although no work is ever perfect, they came round and took the very few concerns we had and ensured a resolution was put in place - I cannot possibly fault any part of the process from beginning to end. I will be using KJMs services again in the near future for further work.
Customer in Hampshire Posted on 10/12/2021 , work completed 08/12/2021
KJM door fitting
Customer Service
Quality
Value
KJM were very professional, from the initial assessment and quote stage, through to delivery and fitting. The fitters, Aiden and Josh, had to take out some brickwork to fit the door and were careful to minimise the mess and clean up afterwards. They also came back a second time to fit the trim, allowing time for an electrician to route some cabling. All in all, a first rate, good value, service from a local company. Job done!
Customer in Hampshire Posted on 17/03/2022 , work completed 11/03/2022
The trader replied (on 25/03/2022)
Thank you for taking the time to provide us with a Which? review, it is very much appreciated. It is good to hear that we 'were very prfessional' and Josh and Aiden were clean and tidy. Thank you again Mark MD KJM Group Ltd