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About

KJM is a trusted home-improvement specialist providing high-quality hup! extensions to homeowners across Hampshire. Founded in 1982, we have built a strong reputation in the region for craftsmanship, reliability, and customer-focused service, with much of our work coming through recommendations and repeat custom.

Customer care is central to the success of our hup! projects, with a straightforward, no-pressure quotation process and a commitment to honest advice, ensuring you can make informed decisions in your own time.

With decades of industry experience, professional accreditations, and a proven track record across residential and commercial projects, KJM delivers high-quality hup! installations backed by attentive service and long-term support.

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hup! logo - the better way to build

Trusted hup! builders in Andover

We are proud to be trusted members of the hup! Partner Network and are also Which?, Checkatrade and FENSA approved providing you with complete peace of mind.

Showroom

  • Unit 9 Mylen Business Centre
  • Andover
  • Hampshire
  • SP10 3HR
KJM showroom - detail view

Opening times

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
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Any questions?

We are proud members of the hup! partner network.Choose us as your trusted hup! experts

Is hup! compliant with Building Regulations?

Yes, of course! All hup! components are fully compliant with the latest Building Regulations.

I’m worried about costs spiralling and exceeding our budget.

At the start of any hup! build, you will be given a written quote which will not fluctuate.

I’ve heard horror stories about home extensions, what makes hup! different?

Many of the horror stories associated with building extensions are due to managing multiple trades, weather delays and price increases – with hup! every one of these worries is eliminated. One team manages your build, most builds are completed in around 4-5 days and you will be given a price at the beginning of your build that is guaranteed.

Is hup! too good to be true?

hup! offers so many benefits that some homeowners have questioned if what they read about it can really be true – and have subsequently been reassured that hup! IS every bit as good as it sounds by homeowners who have already had their hup! built!

One of these homeowners is Sarah and you can read her hup! story here.

Still need help?

Visit our advice hub to find answers to questions, useful tips, and more

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We are proud to be part of the hup! Partner Network.

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