Greater London, SE6
We provide our clients with excellent service and quality. Whether you are looking to extend or upgrade, our professional team has the skills and e...
Radoslaw Rzanek
Trusted and professional extension builder in SE6. Experienced in all extension buildering work and keeping within budget and on quote. RR'S Builde...
Rapid Bee Ltd is an established extension buildering business in SE6. We come highly recommended and provide competitive quotes for your work.
...Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in SE6. Upwards and Outwards is a friendly and reliable company based in SE6 who consider no j...
Relax... you have found a reliable extension builder in SE6. S G Painting Contractor Ltd is a friendly and reliable company based in SE6 who consid...
Need to find an Extension Builder near you for all your extension buildering work?
JEM BUILDING CONTRACTORS LTD provides a local, trusted e...
South East Builders are here to help customers who need an Extension Builder in SE6. We offer a competitive rate to complete all your extension bui...
From £36,075
London, SE6
Baseline Build and Renovate Ltd is an established extension buildering business in SE6. We come highly recommended and provide competitive quotes f...
From £33,975
Jeremy Weston, trading as GreenGauge has over 10 years experience working as a Heating Engineer. Fully Insured and Gas Safe Registered.Base...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in SE6 by posting your job to extension builders in SE6.
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.

Underpin a building - £17,630

Two storey extension - £88,196

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,608

Side return extension - £42,967

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,973

Build a kitchen extension - £42,130

Hip to gable loft conversion - £42,130

Granny annexe - £87,130

Garden office - £10,130

Convert a Garage - £16,130

Garage - £18,630

Build a flat roof extension - £22,130

Build a dormer loft conversion - £42,130

Concrete foundations - £6,380

Convert a bungalow loft - £29,130

Convert a basement - £38,967