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RCB Group Design & Build
Vasi J
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All aspects of Plumbing, Heating and Drains....
..."I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY
The Perfectionist
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in Forest Hill. No obligation free quot...
"Convert a Garage" - SE13, job posted 14/09/26
S G Painting Contractor Ltd
Relax... you have found a reliable extension builder in Forest Hill. S G Painting Contractor Ltd is a friendly and reliable company based in Forest...
"Side return extension" - SE26, job posted 04/08/24
South East Builders
South East Builders are here to help customers who need an Extension Builder in Forest Hill. We offer a competitive rate to complete all your exten...
"Reconstructed full House" - DULWICH, job posted 16/05/24
£44/hr
£281/day
Baseline Build and Renovate Ltd
Baseline Build and Renovate Ltd is an established extension buildering business in Forest Hill. We come highly recommended and provide competitive ...
£41/hr
£253/day
GreenGauge Heating Limited
Jeremy Weston, trading as GreenGauge has over 10 years experience working as a Heating Engineer. Fully Insured and Gas Safe Registered.Base...
£49/hr
£304/day
Universal Plastering Ltd
We are a family run local business that was founded in 2007. Universal Plastering Ltd provides a wide variety of building and plastering services i...
£37/hr
£235/day
FRIERN BUILDING LTD
FRIERN BUILDING LTD is an established extension buildering business in Forest Hill. We come highly recommended and provide competitive quotes for y...
£45/hr
£284/day
BERNARD CONSTRUCTION LTD
BERNARD CONSTRUCTION LTD are here to help customers who need an Extension Builder in Forest Hill. We offer a competitive rate to complete all your ...
£42/hr
£262/day
S W BUILDPROVEMENT
Whether you are looking to build, extend or upgrade we will help. From building to decorating. Our professional team have the skills and experie...
£47/hr
£298/day
RM Building (London) Ltd
Trusted and professional extension builder in Forest Hill. Experienced in all extension buildering work and keeping within budget and on quote. RM ...
£41/hr
£260/day
CHRIS BALL & SON ROOFING LTD
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£38/hr
£238/day
STOYANOV CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
STOYANOV CONSTRUCTION LTD provides a local, trusted exte...
£41/hr
£259/day
NKD Contractors
Trusted and professional extension builder in Forest Hill. Experienced in all extension buildering work and keeping within budget and on quote. NKD...
£40/hr
£248/day
By design - interior styling and remodelling
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£40/hr
£249/day
Five Sextillion
Five Sextillion is an established and experienced local extension builder in Forest Hill. Please contact us for a free, no obligation quote and com...
£40/hr
£250/day
Justin Bailey
Need an Extension Builder in Forest Hill? Justin Bailey has been helping local clients (5 mile radius) with their extension buildering jobs for man...
£46/hr
£289/day
Pure Building & Maintenance Services Limited
Pure Building & Maintenance is a family run business with over 35 years' experience. Comprising a team of dedicated professionals who all have the...
£52/hr
£281/day
21st Century Design & Build Ltd
21st Century Design & Build Ltd is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 5 miles ar...
£43/hr
£265/day
Global Business BoxLttd
Global Business BoxLttd are here to help customers who need an Extension Builder in Forest Hill. We offer a competitive rate to complete all your e...
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Use these steps to find Extension Builders in Forest Hill for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Forest Hill. We’ll notify you via text or email when an Extension Builder is available to quote.
- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local Forest Hill Extension Builders or phone them directly - you’re in control!
Local Extension Builders in London Boroughs
Job estimates from extension builders near you
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Build a timber frame extension - £26,168

Garden office - £10,168

Granny annexe - £87,168

Build a flat roof extension - £22,168

Convert a Garage - £16,168

Hip to gable loft conversion - £42,168

Convert a bungalow loft - £29,168

Build a dormer loft conversion - £42,168

Build a swimming pool - £81,168

Build a Mansard loft conversion - £52,168

Concrete foundations - £6,418

Underpin a building - £17,668

Two storey extension - £88,252

Convert a basement - £39,390

Side return extension - £43,390

Loft conversion - £35,325

Garage - £18,668

Single storey extension - £58,360

Outbuilding - £10,168

Install an RSJ - £2,368

Build a kitchen extension - £42,168
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