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
Which? Local Review
Customer Service
Quality
Value
After a thorough evaluation of three competitive quotations for a conservatory, this firm was found to have both a superior specification and a price considerably lower than the others. The technically experienced Director who dealt with us throughout attended to every detail and the finished job was completed almost on schedule with no requirement for a return to fix problems. It was a pleasure to deal with the company.
Gordon, Winchester Posted on 01/10/2006 , work completed 01/10/2006
Attention to detail
Customer Service
Quality
Value
Installation of 2x sets of French doors. Despite issues arising during installation, their response and attention to resolving the issues was maintained throughout. Courteous engineers with an expansive knowledge of the product.
Robert, Hampshire Posted on 31/05/2018 , work completed 31/05/2018
KJM secondary glaze project
Customer Service
Quality
Value
Second time I've installed a secondary glaze and first time with KJM. Big project and very professional/pleasant. I'm very pleased with the quality of product and installation; hardly tell it's there after a week. All about heat retention, as a priority, not sound, and KJM worked with me on this. Both the install teams were v knowledgeable, efficient and tidy. Only downside is the lead times as v busy
Customer in Hampshire Posted on 07/03/2022 , work completed 07/03/2022
The trader replied (on 10/03/2022)
Thank you for taking the time to review KJM, we really do appreciate it. I am pleased to hear that we treated you well and can only apologise about the length you had to wait. The pandemic made us very busy with a very slow supply chain. Things have now improved and lead times are much lower. Thank you again
Extremely Satisfied
Customer Service
Quality
Value
Our requirements were discussed beforehand, the fitters were polite and courteous, the work is to a high standard and extremely satisfactory
Customer in Hampshire Posted on 01/08/2019 , work completed 23/07/2019
Great job
Customer Service
Quality
Value
From cutting a hole in the wall, to installing new French doors and then plastering the internal wall/doorframe. Everything was done efficiently by a friendly team who were great at tidying and cleaning up afterward. Really happy with the product and the workmanship.
Customer in Hampshire Posted on 31/08/2022 , work completed 16/08/2022
Would Highly Recommend KJM Windows......
Customer Service
Quality
Value
We recently had our front windows replaced and a new front door fitted by KJM. Firstly, I would like to say what a lovely and honest guy Mark the owner is, he came and measured up and quoted us for the work originally and was very helpful and even adjusted our doors we weren't having changed and advised us on what replacement handle we needed to buy, at no cost to ourselves, what a star! I will say our quote was very competitive and the quality of our windows and door are amazing and we are so pleased. We had a problem with part of our door fitting due to a manufacturing fault, Mark came round personally and we had discussions and he went away and re-ordered the part in question and recitfied the situation. I am going to mark the company down by a point on Customer Service, as I feel they could have been a bit more proactive in updating us to what was happening between the point of ordering and fitting the windows and I had to chase them. I am fully aware of the current econmic situation and what businesses are up against but because of this, there is more than likely to be more waiting time and delays for the customer, so I then think it is even more imperative the customer is fully informed and updated at all times. This is my only slight niggle, otherwise it would have been full marks and it is definately full marks for Mark. All in all, I would not hesitate to recommend KJM, they are very honest and trustworthy and you will not be disappointed!Thank you Mark & Team
Customer in Wiltshire Posted on 30/11/2021 , work completed 15/11/2021
Door replacement
Customer Service
Quality
Value
The door fitting was very efficient, tidy and really good standard. The fitter was very friendly and prompt, ensuring everything was in place and working before leaving. Initial quote process was thorough so no need for any follow up visit. Could have done with an earlier update between quote completion and fitting date.
Customer in West Berkshire Posted on 22/10/2019 , work completed 22/08/2019
The trader replied (on 11/12/2019)
Thank you for taking the time to review KJM. I am more than happy that your overall experience was a positive one. I will ensure that we try and improve the communication with regards fitting dates. Thank you again and Seasons Greetings. Mark and the KJM team
Tidy & Professional
Customer Service
Quality
Value
Roughly 3 weeks ago, had 5 windows and a door tended to by KJM Windows & Conservatories. Carl completed all work on time and to budget, he was very efficient, tidy & professional. Would recommend.
JohnL1 Posted on 25/06/2014 , work completed 25/06/2014
A Which? Trusted Traders staff member replied on behalf of the trader (on 22/06/2015)
Many thanks for taking the time to write a kind review of KJM Windows & Conservatories
replacement windows
Customer Service
Quality
Value
very pleased with the work the guys from KJM did when fitting my new windows. They arrived nice and early as requested and straight away just got on with the job. They were very friendly and professional, as well as stacking up the removed windows and tidying up as they went along. The windows were fitted a lot quicker than I'd expected and I am very pleased with how they now look both inside and out. A job well done.
Customer in Hampshire Posted on 15/12/2018 , work completed 11/12/2018
Great workmen
Customer Service
Quality
Value
My landlord sorted everything with kjm so I can only comment on the workmen that came out today, they are very respectful, funny and kind! They take pride in their work and make sure they clean up after themselves and they are very good around children, definitely highly recommended!
Customer in Hampshire Posted on 12/03/2022 , work completed 12/03/2022
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. I am very pleased to hear that the fitters were respectful, kind and funny. I will check to see who they were :-) Thank you again Mark MD KJM Group Ltd