Building across Yorkshire and Manchester for 20 years
- 20
- 200+
Local, hands-on, and here for the long run
We're K&M Diamond Construction. We've been building for 20 years and finished more than 200 projects across Yorkshire and Manchester.
Most of our work is extensions, bathrooms and rendering, but we also build new homes, refit kitchens and turn damp cellars into proper rooms. Whatever the job, one team runs it. You won't be chasing four different trades or wondering who's turning up on Monday.
It always starts with a visit. We come round, measure up and listen to what you want. Then you get an itemised quote, an honest timeline and straight answers on planning and building regs, so nothing catches you out once we start.
How we like to work
- 01
Straight answers
Clear, itemised quotes and honest advice, including when a job isn't worth doing.
- 02
One team
The same people from first visit to handover. No passing you between trades.
- 03
Tidy sites
We protect your home, clear up daily and keep neighbours in the loop.
- 04
Built to last
Proper foundations, the right materials and finishes we're happy to put our name to.
The people on your job
Our own team runs every job, with local trades we've worked alongside for years. The person who prices your job is the person you'll see on site.
We'll keep you posted as the work goes on, and if anything needs looking at after we've finished, just ring us.
From first visit to finished room
- 1
Free visit and quote
We visit, measure up and talk it through, then send a clear, itemised quote.
- 2
Design and plans
Drawings and specification agreed, with help on planning and building regulations.
- 3
Build
One team on site from start to finish, with regular updates as the work progresses.
- 4
Handover and aftercare
A final walk-through together, and we stay a phone call away afterwards.
Start my free quote
Tell us about the job and add a few photos. It takes about a minute, and we'll call to arrange a free visit.