Builders in Bexley
Kelmend Construction is based in Sidcup, five minutes from Bexley village. Extensions, loft conversions, renovations, roofing and rendering for the 1930s semis of Blendon, the large plots toward Joydens Wood and the Old Bexley and Parkhurst conservation areas.
Village, villas and 1930s semis
Bexley village and the streets around it hold more variety than anywhere else in the borough: Georgian and Victorian houses in the Old Bexley conservation area, large Edwardian villas in Parkhurst, long streets of 1930s semis in Blendon and around Bexley station, and detached houses on big plots toward Joydens Wood and North Cray. Each needs a different approach, and we've worked on all of them.
Old Bexley carries both conservation area status and an Article 4 direction, so knowing exactly where those boundaries fall matters here more than in most of the borough. We're five minutes away in Sidcup and work with architects who know how Bexley Council handles applications in the village.
Our services in Bexley
Everything from a rear extension to a full renovation of a village house, managed by one team. Extensions and loft conversions have their own Bexley pages with local planning detail.
Extensions in Bexley
Rear, side return, double storey and wraparound extensions on Blendon's 1930s semis and the older houses of Bexley village. Planning, build and finish managed as one job.
See extensions in Bexley →Loft Conversions in Bexley
Hip-to-gable, dormer, Velux and mansard conversions. Free roof assessment before you commit to anything.
See loft conversions in Bexley →Renovations in Bexley
Full house renovations, kitchens, bathrooms and flat refurbishments across Bexley, from structural work to final decoration.
Learn more →New Builds in Bexley
New build homes and infill plots, from foundations to handover, with planning and building control managed throughout.
Learn more →Roofing in Bexley
Roof repairs, full replacements, flat roofs, guttering and chimney work, with scaffolding and weatherproofing handled by us.
Learn more →External Rendering in Bexley
Silicone, monocouche and sand-and-cement rendering, with cracked render repairs and external wall insulation.
Learn more →Landscaping in Bexley
Patios, decking, garden walls, drainage and full garden landscaping that ties in with an extension or stands on its own.
Learn more →Painting and Decorating in Bexley
Internal and external painting and decorating, usually as the finishing stage of a bigger project but available on its own.
Learn more →Planning in Bexley
Bexley village is the historic heart of the borough, with the planning constraints to match. Old Bexley and Parkhurst need careful handling; the interwar streets around them are much simpler.
Permitted development
Outside the conservation areas, most rear extensions, rear dormers and hip-to-gable conversions on Blendon's semis are permitted development.
Old Bexley
Conservation area with an Article 4 direction. Most external work needs a full planning application, sympathetic materials and a design that defers to the original building.
Parkhurst
Conservation area covering large Victorian and Edwardian villas. Extensions and dormers are possible but reviewed closely on design and materials.
Timelines
Bexley Council typically decides householder applications within 8 weeks of validation. Conservation area applications can take longer.
Party walls
Semi-detached and terraced projects almost always involve the Party Wall Act. We flag it at the first visit.
Building regulations
Structural work, loft conversions and extensions all need building control approval, managed by us from start to sign-off.
Bexley's conservation areas
Four conservation areas cover parts of Bexley and North Cray, with two more at nearby Crayford:
Old Bexley also carries an Article 4 direction. We check your address against Bexley's current maps at the consultation.
Why Bexley homeowners choose us
Based in Sidcup
A local company with a local reputation to protect. Site visits, the build and any snag afterwards are a short drive, not a trip across London.
One accountable team
You deal with us throughout, not a project manager you've never met. We're on site, reachable, and answer the phone.
Planning handled
We advise on the planning route, work with architects who know the local council, and manage building control. You won't be chasing the council yourself.
Itemised, honest quotes
Fully itemised quotes with no vague allowances. Any changes are costed in writing before we proceed.
Built to regulations
Every structural project is signed off by building control, protecting your investment and avoiding problems when you sell.
Finished properly
We don't hand over a shell. Plastering, flooring, electrics, plumbing and decoration run as one programme so the job is finished, not nearly finished.
Bexley and nearby
Based in Sidcup and working across the borough and beyond, including:
Not listed? We take on projects across south east London. Just get in touch.
Questions Bexley homeowners ask
Do you cover all of Bexley?
Yes. We work across the whole of Bexley and the surrounding areas. Most of our projects are within a short drive of our Sidcup base, which keeps site visits, deliveries and snagging quick.
How much do builders in Bexley charge?
It depends entirely on the job. As a guide, single storey rear extensions run £1,500 to £2,200 per square metre fully finished, loft conversions from around £35,000 for a dormer, and full house renovations are priced room by room. Work in the Old Bexley and Parkhurst conservation areas often involves higher-specification materials. Every quote is itemised.
Do you handle planning permission with Bexley Council?
Yes. We advise on whether your project needs planning permission or falls under permitted development, work with architects who know Bexley Council, submit the application and manage building control through to sign-off.
Can I see examples of your work?
Our projects page has full photo write-ups of recent extensions, loft conversions, refurbishments and gardens, and we're happy to put you in touch with past clients nearby.
How do I get a quote?
Call 020 8226 0221 or use the quote form. We'll visit your Bexley property, talk through what you want and come back with a fully itemised quote. No pressure, no call centres.
Are you insured and do you provide a contract?
Yes. We carry public liability insurance and every project runs on a written contract setting out scope, timeline, stage payments and how any changes are handled.
Need a builder in Bexley?
We're five minutes away. Tell us about your project and we'll come round for a free, no-obligation consultation.
No pushy sales. No call centres. Just a straight conversation about your Bexley project.