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Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Torrington Design
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
SLS BUILDERS LIMITED is a trusted extension builder serving customers in Paddington and the surrounding area. Contact us to today to get a competit...
Relax... you have found a reliable extension builder in Paddington. M & A UK Ltd is a friendly and reliable company based in Paddington who conside...
Darren Bergin
Relax... you have found a reliable extension builder in Paddington. First guard Roofing is a friendly and reliable company based in Paddington who ...
CK Constructions & Development Ltd is a trusted extension builder serving customers in Paddington and the surrounding area. Contact us to today to ...
A to Z Builders Ltd are here to help customers who need an Extension Builder in Paddington. We offer a competitive rate to complete all your extens...
JK Doors is a trusted extension builder serving customers in Paddington and the surrounding area. Contact us to today to get a competitive quote fo...
JM Building Services is a trusted extension builder serving customers in Paddington and the surrounding area. Contact us to today to get a competit...

Mansard loft conversions range from the cheapest installation of £51,928 (BPS Building based in NW6) to the dearest of around £52,376 (CK Constructions & Development Ltd based in WC1N).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Paddington by posting a job with HaMuch and we'll send it to extension builders in Paddington.
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 - £17,604

Two storey extension - £88,156

Build a timber frame extension - £26,104

Build a swimming pool - £81,104

Single storey extension - £57,080

Side return extension - £42,670

Install an RSJ - £2,304

Outbuilding - £10,104

Build a Mansard loft conversion - £52,104

Loft conversion - £34,725

Build a kitchen extension - £42,104

Hip to gable loft conversion - £42,104

Granny annexe - £87,104

Garden office - £10,104

Convert a Garage - £16,104

Garage - £18,604

Build a flat roof extension - £22,104

Build a dormer loft conversion - £42,104

Concrete foundations - £6,354

Convert a bungalow loft - £29,104

Convert a basement - £38,670