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Endorsed by Which? Trusted Traders

KJM Windows and Conservatories

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25 Reviews

Opening Hours
Today -
  • Monday 08:30–17:30
  • Tuesday 08:30–17:30
  • Wednesday 08:30–17:30
  • Thursday 08:30–17:30
  • Friday 08:30–17:00
  • Saturday 10:00–16:00
  • Sunday - Closed


KJM Windows & 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 £60,000,000 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 & G15 Installer of the year finalists, Glass & 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

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25 reviews
Customer Service
Sort by
Superior Quality - Efficient - Exceptional Service
Customer Service
We have just had 6 windows and 2 doors fitted by KJM - from the original request to survey, fitting and finishing, I cannot praise this company highly enough. There were no pressure sales, the survey was exceptionally thorough and the fitting and finishing were second to none. 3 days to fit - in two rooms no need for redecoration and Carl and Alan really cleaned up when they had finished every day (and I am very fussy !). I cannot praise KJM highly enough and would certainly recommend them. An exceptional company, expert fitting and a superior product - thankyou so much.
Helen Pennicott Posted on 01/03/2016 , work completed 01/03/2016
Full house replacement windows
Customer Service
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
Tidy & Professional
Customer Service
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
Which? Local Review
Customer Service
KJM fitted French Windows for us. They were quick, efficient, good value and professional. The quote was fully detailed and the whole process was a pleasure. I will definitely use them again.
Ken-out-of-Bath Posted on 06/02/2013 , work completed 06/02/2013
Which? Local Review
Customer Service
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