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
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
Fantastic service and product
Customer Service
Quality
Value
We had previously used KJM as part of a build project to fit bi-fold doors and were very pleased with the outcome. We dropped into their showroom to discuss replacing the other 12 windows as they were over 25 years old, an advisor came out to see us firstly asking what type/look of windows we wanted and then talked us through our options including the standard of frames and glass available and produced a detailed costing. At this point I should mention there is no messing around with KJM on here’s a cost! Let’s take this off for this and that and arriving at a final price, (as with so many competitors) you are given the cost at the beginning…no messing around! Arranging fitting was so easy as was changing it and was carried out professionally and with great care. The fitters explained what they were going to do and got on with the job efficiently and with a friendly manner. Job took just under three days and everything was left perfectly tidy each day. At the end of the fit we were walked through the operation of the windows, ongoing care and service by KJM and to check we were satisfied with the finishing of the fitting. Very good local company and professional service. Great product and fantastic looking new windows.
Customer in Hampshire Posted on 09/03/2022 , work completed 09/03/2022
The trader replied (on 10/03/2022)
Thank you for taking the time to review KJM. I am pleased to hear that all parts of our service met expectations. Employing our own staff means that sales-commissions are not a part of 'our sales patter' hence the good old fashioned honest pricing policy. That way will always be our way of doing business! Thank you again!
Conservatory
Customer Service
Quality
Value
Had a conservatory built. From start to finish has been brilliant. Lee sorted every thing out with the lads. All the lads have been lovely. Really good at what they all do. Plastering too was brill. Can not fault any of there work. Thanks again to KJM for doing a grand job. Love Dawn Chris. Ted my little dog they all loved. xx
Customer in Hampshire Posted on 18/03/2022 , work completed 17/03/2022
The trader replied (on 25/03/2022)
Dawn, thank you for taking the time to provide us with a Which? review, it is very much appreciated. It is a credit to all the KJM team that we recieved 5* as I know there were some challenges with the project. Thank you again Mark MD KJM Group Ltd
Head and shoulders above
Customer Service
Quality
Value
I have no hesitation in recommending KJM group. We needed two new fairly large picture windows with triple glazing to the 44mm std. The company is not local but was found by using the internet seeking information on triple glazing specs. The KJM website impressed. Installers closer to home had failed to provide quotes that met our needs. A senior manager called me and we discussed the work. He promptly visited with a sample of the suggested product. He measured the reveals and on same day emailed a comprehensive quote with all the spec. details. This was accepted. The installation experience was perfect. A cohesive and skilled team with excellent customer facing abilities. The frames each secured with fourteen Timco masonry screws and a first class finish inside and out. All debris removed and all left super clean and tidy. No damage to white/pale carpeting. It was a pleasure to have Josh and Charlie on site. The frames are Residence 7 with the pleasant flush casement design. Thickness is 75mm thus suitable in the replacement window context without cutting back in the reveals. Glass from the french company St Gobain. The internet played its part, we are most pleased to have found KJM.
Philip in Oxfordshire Posted on 27/07/2022 , work completed 22/07/2022
Fantastic service in every way
Customer Service
Quality
Value
I recently contacted KJM to get advice on replacing 6 ‘misted up’ decorative leaded double-glazed units at our house. They quickly sent a surveyor to us who checked the windows, took very detailed measurements and told us they would send a quote to us for the supply and fitting of the replacement units. The quote arrived quickly, was very reasonable, we paid the deposit and shortly afterwards they contacted us to confirm a fitting date. The fitters, Josh and Will, arrived on the agreed date and time and carried out the replacements quickly and efficiently. They were both really polite and good humoured, worked nonstop from the time they arrived and left the work areas immaculate before leaving. Our windows are a perfect match and look fantastic. This is customer service at its very best and I congratulate all of the KJM team in demonstrating how to deliver outstanding service. Well done to all and I will have no hesitation in recommending you to all our friends and family who might need such work doing in the future. Please in particular thank the two fitters who did the work, they were a real credit to your company.
Customer in Hampshire Posted on 16/01/2023 , work completed 20/10/2022
The trader replied (on 25/01/2023)
Good morning and many thanks for the 5* review. My favourtite line of your review is "This is customer service at its very best and I congratulate all of the KJM team in demonstrating how to deliver outstanding service." I will ensure this is passed on to the entire KJM team. Thank you again Mark MD KJM
Triple Glazing of Windows and External Doors
Customer Service
Quality
Value
Having fairly recently moved to another house we decided to update all the house windows and external doors to triple glazing. Having already had KJM install triple glazing at our previous house, which we were extremely pleased with, we again approached them for a quote for all the windows and external doors around the new property. We accepted their quote and the work was completed by two very efficient and friendly installers to a very high standard and which we are very happy with. The two installers couldn't do enough to make sure every window and door was perfectly installed. We would thoroughly recommend KJM and am now considering the re-roofing of the Conservatory at our property by KJM. Very many thanks for the high standard of work.
Mike in Surrey Posted on 09/03/2023 , work completed 03/03/2023
The trader replied (on 10/03/2023)
Good morning Mike, so i think you maybe a first for KJM, a customer that has bought triple glazing from us twice! In our 40 year history we have had loads of repeat customers moving and changing their windows with KJM, but this has been double glazing. Thank you for using us again and taking the time to review us. It is very much appreciated.
Very Pleased Customer
Customer Service
Quality
Value
KJM were very professional and helpful from quotation time through to completion of installation. The job entailed taking out old single-glazed windows and doors to our preschool hall and installing new uPVC double-glazed units. Whilst quoting the job they made a very helpful suggestion to help save cost. Once we accepted their offer ( which was very competitive) they agreed an installation date which was adhered to. The installation team were amazingly helpful and the finished job, done on time and on budget is first class!
Richard in Andover Posted on 15/03/2023 , work completed 15/02/2023
The trader replied (on 22/04/2023)
Richard, thank you so much for taking the time to leave KJM a review for the recently completed works. I am pleased to hear that we were competitive and the fitters were amazingly helpful. Mark and all the team at KJM
Conservatory Roof
Customer Service
Quality
Value
KJM came and replaced my conservatory roof in the last week of July. They stated it could take up to 3 days - weather dependent - but took just under two. They worked hard, did an excellent job and left the conservatory absolutely immaculate! There was nothing to do except put the furniture back in. Having used them previously for my windows I was confident they would do a good job and they did.
Customer in Hampshire Posted on 07/08/2023 , work completed 27/07/2023
The trader replied (on 14/08/2023)
Thank you for taking the time to review KJM. I am pleased that we met your expectations again. We strive for customer satisfaction on each and every job, it is why we are recommended to many people. Thank you again from Mark and all the team at KJM
Great team. Great product.
Customer Service
Quality
Value
Thank you KJM. We have just had a Compdoor fitted by the excellent team of Charlie and Josh. The product is top quality as expected from KJM and so much better than the ‘new build’ front door fitted by the developer. It looks good too. Charlie and Josh worked in the pouring rain but with great humour and so helpful with explanations. A great team and a credit to KJM.
Customer in Hampshire Posted on 07/09/2024 , work completed 05/09/2024
The trader replied (on 10/09/2024)
Thank you for taking the time to leave a 5* Which? review for KJM. Charlie and Josh continue to lead the way for KJM fitters with both their fitting and excellent customer service skills, so as you say a great team and a credit to KJM. Thank you again
Installation of new front door
Customer Service
Quality
Value
The work was to remove our front door and to replace it with a made-to-measure high-grade composite item. Our fitter, Andy, was really very good. He arrived slightly early, which was totally OK and took the expected time to do the work. Installation was straight forward and he was neat, quick, professional and very friendly. It was a pleasure having him in the house. The product was exactly as ordered and the cost was exactly as quoted. It exceeded our expectations. The service included disposal of the old door, all parts to be recycled it seems - another positive. The work was inspected by a surveyor as soon as it was completed, enabling us to talk about how we found the service - another significant positive.
Customer in Hampshire Posted on 17/01/2025 , work completed 17/01/2025
The trader replied (on 21/01/2025)
Thank you for taking the time to provide KJM with a Which 5* review. I am pleased to read that we exceeded your expectations. Thank you again Mark and all the team at KJM