Renovate
Extensions, conversions and full refurbishments that respect the original structure while quietly bringing it up to a modern standard.
Learn more
Renovate · Build · Maintain
Built on Trust.Driven by Quality.
Twenty-five years spent turning drawings into buildings that last — for homeowners, architects and developers who won't settle for good enough.
25+
Years of hands-on experience
100%
Fully insured & accredited
A–Z
In-house, start to finish
1-2-1
Direct line to your builder
What We Do
Three disciplines.
All Services
Three disciplines.
One standard.
Every job — big or small — is held to the same bar of craftsmanship, whichever of these it falls under.
Build
New builds delivered from groundworks to handover, managed in-house so nothing gets lost between trades.
Learn more
Maintain
Ongoing maintenance and aftercare, because the relationship doesn't end when the scaffolding comes down.
Learn more
Sectors We Work In
From the family home to the high street.
Domestic
Extensions & Renovations
Single and double-storey extensions, full property renovations, and all minor or major building works.
Public Sector
Social Housing
Refurbishment and building works for housing associations and local authority stock, delivered to programme.
Outdoor Living
Garden Rooms
Insulated, fully-finished garden rooms and studios — home offices, gyms and guest spaces built to last year-round.
Commercial
Commercial Fit-Outs
Fit-outs for retail, office and hospitality spaces, managed with minimal disruption to your business.
From the Founder
“I've spent 25 years on site, not behind a desk — every project we take on still gets my name on it.”
Founder Bellmi Construction LTD
How We Work
No surprises. Ever.
The same process on every job — which is exactly why architects and homeowners keep coming back.
I
Site visit & survey
We walk the site with you and, where relevant, your architect — no quote goes out without eyes on the job.
II
Fixed, itemised quote
A clear breakdown of cost and programme. No vague allowances, no hidden extras later.
III
Programme & sign-off
You get a realistic timeline before work starts, agreed with every trade involved.
IV
Build & weekly updates
One point of contact throughout, with regular photo updates so you always know where things stand.
V
Handover & aftercare
Snagging closed out before we leave, and ongoing maintenance available after completion.
Get In Touch
Let's talk about your project.
Tell us what you're planning — location, scope and timing — and we'll arrange a site visit.