Home Extensions Since 1979 — Kent, England
Exceptional Homes.
Expertly Built.
Specialists in Home Extensions, New Builds & Transformations Across Kent.
Est. 1979
Family-Run
Fixed-Price Quotations
Covering All of Kent
Fully Insured
Full public liability cover on every job.
Fixed-Price Quotations
The price we quote is the price you pay.
Building Regs Handled
We manage inspections through to sign-off.
Family-Run Since 1979
Three generations of building in Kent.
Why Choose KBC
Four decades of building excellence across Kent.
Home Extensions Since 1979
Over four decades of extending and improving homes across Kent — experience you can measure in completed projects, not claims.
Family-Run Business
Directors who know your project personally. The people who quote your job are the people who build it.
Experienced Building Professionals
Long-serving tradespeople, trusted subcontractors and one experienced project manager from start to finish.
Fixed-Price Quotations
A detailed, fixed price before work begins — no open-ended estimates, no surprises mid-project.
Covering Kent
From Dartford to Dover, our teams work across the county every week — with genuine local knowledge of Kent housing stock.
Quality Craftsmanship
Attention to detail at every stage — from the first brick to the final coat of paint.
Our Services
Everything your home needs, under one roof.
Featured Projects
Built by KBC, enjoyed every day.
About KBC
A family-run builder, with standards set in 1979.
Kent Building Contractors is a family-run construction company with decades of building experience across the county. We combine traditional workmanship with modern construction techniques — matched brickwork, precise steelwork and finishes you would expect in a much more expensive home.
Every project is managed personally, quoted on a fixed price and finished with the attention to detail that comes from three generations of building in Kent.
1979
Established
100%
Family-run
Kent
County-wide
Testimonials
What Kent homeowners say.
“Thanks for everything throughout the whole process, if ever anyone wants a reference we'd be more than happy to.”
Mr & Mrs H
Single Storey Rear and Front Extensions · Barming, Maidstone
“We were very happy with the work carried out by Kent Building Contractors. They made the whole process very straightforward and kept us up to date with everything. They always arrived on time and left everything as neat as possible at the end of the day. They kept to the timeline they gave us even though we requested extra work along the way. Overall our experience was a good one and we would recommend them and use them again in the future should we make any more modifications to our home.”
Mr & Mrs F
Single Storey Side/Rear Extension — Granny Annexe · Twydall
“Hi Ray Merry Christmas and a Happy New Year! Thank you for the Christmas card — we are still really happy with our extension; it's become a multi-purpose area which works for us. In the summer it flows really nicely between inside and outside as we have decked the outside area. Hope you are well! I recommend you and your team to anyone who is having building work done.”
Mr & Mrs S
Single Storey Rear Extension · Strood
Free Quotation
Planning Your Next Project? Let’s Build Something Exceptional.
Tell us about your home and what you want to achieve. We’ll arrange a convenient site visit and provide a detailed, fixed-price quotation — free and with no obligation.
- Fixed-price quotations
- Response within one working day
- No obligation, no pressure