Trusted and professional extension builder in Bow. Experienced in all extension buildering work and keeping within budget and on quote. Thermodynam...
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
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
Bow, E3
Experienced extension builder ready to quote for your work. Glenward Builders Ltd is the best extension builder in Bow. No obligation free quotes a...
Mick Singh
At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.
Catalin CIOBANU
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Bow. No obligation free quotes and m...
Sampson Essien
Thistle Bonding Coat: Ideal for use on low-suction backgrounds such as brick or concrete blocks, this product provided a solid foundation, Thi...
Trusted and professional extension builder in Bow. Experienced in all extension buildering work and keeping within budget and on quote. Charlie Bui...
GS Fabric Ltd is an established and experienced local extension builder in Bow. Please contact us for a free, no obligation quote and competitive r...
IONUT SORIN Leoveanu
Hi , we are profesional team , we are based in Leyton but we cover all London.
Happy customers = happy team= the business is gooin...

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 Bow by posting your job to extension builders in Bow.
"Loft conversion of a semi-detached house, E15 2AT Hip to Gable Conversion + Rear Dormer Bedroom / Bathroom combination Thus need plumbling and electricity" - E15, job posted 03/08/24
"Loft conversion" - E15, job posted 03/08/24
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 - £17,919

Two storey extension - £88,629

Build a timber frame extension - £26,419

Build a swimming pool - £81,419

Single storey extension - £63,384

Side return extension - £46,216

Install an RSJ - £2,619

Outbuilding - £10,419

Build a Mansard loft conversion - £52,419

Loft conversion - £37,680

Build a kitchen extension - £42,419

Hip to gable loft conversion - £42,419

Granny annexe - £87,419

Garden office - £10,419

Convert a Garage - £16,419

Garage - £18,919

Build a flat roof extension - £22,419

Build a dormer loft conversion - £42,419

Concrete foundations - £6,669

Convert a bungalow loft - £29,419

Convert a basement - £42,216