KJM Group has been established in Andover, Hampshire since 1983 and has built its reputation through quality installation, customer service, and a long-term commitment to the home improvement industry.
The company holds current industry accreditations and has received recognition from independent organisations and industry bodies over more than four decades. We are proud to be a long-standing member of the Glass & Glazing Federation (GGF).
Current Accreditations & Memberships
Recent Industry Recognition
Historical Awards & Achievements
KJM Group's history of industry recognition extends back many years. Where an original external award page remains available, we have provided a link to the independent source. Historical achievements are retained because they form part of the company's established track record.
- Winner — Test Valley Business Awards 2015 — Customer Service
- National Finalist — Network Veka Awards 2015
- Winner — Three National Conservatory Awards
- Winner — Network Veka Customer Satisfaction Award — 2013, 2014 and 2015
- Winner — Inspire Customer Service Excellence — 2014
- Finalist — Inspire Customer Service Excellence — 2013
- Finalist — G11 Awards, Installer of the Year — 2011
- Finalist — G13 Awards, Installer of the Year — 2013
- Finalist — G14 Awards, Installer of the Year — 2014
- Finalist — G15 Awards, Installer of the Year — 2015
- Winner — Network Veka Customer Service Award — five-time winner
- Veka Approved Installer
Long-Term Customer Service
KJM Group has maintained long-standing commercial relationships with customers and organisations as a result of our focus on customer service and installation quality. In some cases, these relationships have continued for more than 30 years.
Our Which? Trusted Trader Promise
KJM Group was successfully endorsed as a Which? Trusted Trader Approved provider in June 2014 and continues to hold Trusted Trader status to this day.
Which? Trusted Traders assess businesses against a strict range of requirements designed to help consumers identify reputable traders. The rigorous assessment includes checks relating to references, financial health, interviews and assessments, and an absolute agreement to the relevant code of conduct.
KJM Group is deeply committed to the Which? Trusted Traders code of conduct and is subject to ongoing requirements associated with maintaining our Trusted Trader status. Which? Trusted Traders also provides access to Alternative Dispute Resolution arrangements for relevant customers.
View KJM Group's current Which? Trusted Trader profile to see our current status, read independently verified reviews, and view additional information about our business operations.
About KJM
Originally manufacturing our own windows on West Portway Industrial Estate in Andover, the company concentrated on uPVC windows as we were unable to manufacture anything else. In these early years, KJM won some substantial commercial contracts.
Over time the economics of manufacturing on a relatively small scale proved not to be cost-effective and, with many new materials becoming available, and customer trends requiring a more diverse range of products, we ceased manufacturing in 1996. This move enabled KJM to offer a much larger product portfolio. Today we can offer a huge range of windows, doors and conservatories in uPVC, aluminium and hardwood.
VIEW OUR WINDOWSOur Services
We, understand the principle that people may require a quotation to find out a cost and not be bullied into making a purchase.
Customer service is paramount to KJM as we rely on most of our business coming through recommendation. No one can promise that every job will run absolutely perfectly – even the best has the odd hitch on rare occasions, but we can assure you that we strive for complete customer satisfaction.
A significant proportion of KJM’s work comes from customer recommendations and returning customers.
So happy with our new windows and doors installed by KJMs extremely professional and crafted engineers; Paul, Lennon & Kerry.
From the very start, Charles worked patiently with us ensuring we had the right product for replacing our cottage’s windows and doors.
Next Andy ensured everything was made to measure correctly and added the touches that took the look from great to stunning.
Engineers Paul & Lennon installed the products with care and clearly they have a high level of craftsmanship.Kerry finished off the stress free process with the final tweaks needed when fitting a high quality product into a 209 year old cottage. And last but not least, Simon’s expert eye ensuring nothing was missed.
Thank you to all involved. We are very very pleased with the service and products from KJM and would definitely recommend them.
Jo Morrell
SouthamptonWe had a wonderful and stress free experience having all our windows replaced, from the initial meeting & quote to installation.
Everything was delivered as promised and on time.
There were very various options available to us, but at no time was there any hard selling, just genuine recommendations on what would be best for our needs.
Installation was completed in 2 days and the fitters were polite, courteous and left the house clean and tidy after they had finished.
We can highly recommend KJM for their customer service, pricing and delivering what was expected without any fuss hassle or delay.
John Hyde
BasingstokeOur third time using KJM and would still highly recommend! The whole team from sales to survey to install to payment are very polite and a pleasure to deal with. The install guys were especially good, turned up on time, explained everything that was happening each day, asked questions rather than making assumptions, worked very hard and cleaned up after themselves. This was phase 1 on our current house and we’ll be back for phase 2 as soon as we’re ready!
Alex Leung
WinchesterFrom start to finish, the team delivered outstanding workmanship and professionalism. The attention to detail on our windows and door replacement was exceptional — perfect sealing and everything operated smoothly on first use. They protected floors and furniture, worked neatly, and left the areas immaculate.
What really stood out was how considerate they were when a neighbour raised a concern. They handled it calmly and respectfully and genuinely felt they cared.
They also went the extra mile by fitting a cat flap in our new door which was really convenient and kind.
Professional, punctual, tidy, and genuinely thoughtful — I’d recommend them without hesitation.
Thanks everyone so much!
Tabitha Blake
AndoverChosen on recommendation and they didn’t disappoint. A local company with excellent values and a personal service. From the initial visit and assessment with Charles to the fitting by Paul and Lennon, the service was excellent. People that know what they are doing and go the extra mile to look after your home as if it was their own.
The products are top quality and we couldn’t be happier with the finish. On completion Simon was on hand to listen to our feedback and take on board our reflection of our experience. Thank you all, we would 100% recommend you.
Lisa Taverner
WinchesterWhat can I say. From start to finish these guys have been absolutely amazing. From the quote, measuring, pre-work through to installing the new windows & doors, everyone has been great.
Josh, Jordan & Shay who did the installation were fabulous. Incredibly hardworking, polite, friendly, and tidy. Can’t recommend them enough. Thank you KJM for a stress free week.
Maggie Crosby
HampshireI’ve used KJM for a few replacement and new windows/doors over the years. Their service has always been great, particularly any after sales/maintenance required. I’ve recently had a replacement window fitted and I was blown away at the professionalism of the fitters.
Charlie, Ryan and Peter were so polite, considerate and tidy throughout the fitting. The first thing they did was put down floor protection and dust sheets from the entrance to where the window was being fitted, the last thing they did was sweep the area outside where they were working. I dare say the area was tidier after they left than it was beforehand! They truly are a credit to the company and are more than I could hope for from a local business.
Archie Sturt
AndoverHad a great team today fitting new conservatory doors as well as a new front door. Lesley and Liam, a father and son partnership did an amazing job.
Firstly the conservatory doors look amazing, they are new doors fitted to a 28 year old conservatory! The result is outstanding, so a big shout out to KJM, Lexter & Liam.
The front door looks classy, a great new addition to the house.
We are so pleased with the result and would highly recommend KJM, and if you are lucky enough to get Lester & Liam you are in safe hands.
A very satisfied customer!😊
Lisa Wearn
HampshireOur Accreditations
Throughout our business history, we have been delighted to receive several accreditations, awards and partnerships in our fields. We have installed many large projects for clients such as Winchester City Council, Peverel, RLHA, Grainger PLC and The Diocese of Winchester.
We have also become Which?, Checkatrade and FENSA approved for our services as we continue to provide our customers with high quality home improvement services and products.
No Pressure Promise
At KJM Windows & Conservatories, we pride ourselves on our no hassle, no pressure approach to providing high-quality home improvement products to the thousands of customers who have put their trust in us since 1982.
It is our experience that the last thing our customers want is a high-pressure sales person in their home, especially when they will not leave until they have ‘got the order’. Consequently, we at the KJM Group have a ‘No Pressure Promise’ to guarantee that if we are invited into your home, we will not employ any hard sell tactics and will leave immediately the moment anyone feels uncomfortable.
It’s the main reason that none of KJM’s sales staff are commission based. Most of our quotations require us to leave your property WITHOUT providing you with a quotation. You will be emailed or posted your full written quotation for you to peruse at your leisure. If you want to know more about our no pressure promise, don’t hesitate to contact us today.
CONTACT USContact Us
We proudly offer various products and services for our customers and homeowners around Andover and Hampshire. If you want more information on our services or a quote, contact us today using our contact form, and we will endeavour to respond as soon as possible.
