From £52,104
Greater London, N16
Experienced extension builder ready to quote for your work. Barnaby Reynolds Design. is the best extension builder in N16. No obligation free quote...
From £52,192
Trusted and professional extension builder in N16. Experienced in all extension buildering work and keeping within budget and on quote. Amastic Roo...
From £52,040
Greater London, N16
Maddison & sons pride ourselves on attention to detail at the highest level.With an extensive background As Mains Contractors in construction fabri...
From £52,368
ACAR BROTHERS is an established and experienced local extension builder in N16. Please contact us for a free, no obligation quote and competitive r...
From £52,400
Stamford Hill, N16
Experienced extension builder ready to quote for your work. Five Star Builder is the best extension builder in N16. No obligation free quotes and m...
From £52,368
D Keighley Project Management Ltd are here to help customers who need an Extension Builder in N16. We offer a competitive rate to complete all your...
From £52,448
Greater London, N16
Celebrating over 13yrs in business and WE DO MORE THAN IT SAYS ON THE TIN! The company is owned and managed by me, I am a Building Surveyor...
From £51,984
Free Quotes WE OFFER GUARANTEES ON ALL WORK COMPLETED AND HOLD £2M INSURANCE FOR YOUR PEACE OF MIND Parkway Maintenance and Const...
From £52,144
Stamford Hill, N16
FISKA DESIGN & BUILD are here to help customers who need an Extension Builder in N16. We offer a competitive rate to complete all your extension bu...
From £52,192
Relax... you have found a reliable extension builder in N16. London Trowel Co. is a friendly and reliable company based in N16 who consider no job ...

Mansard loft conversions range from the cheapest installation of £51,984 (Parkway Maintenance & Construction based in N16) to the dearest of around £52,448 (My Plumbing & Heating Ltd based in N16).
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 N16 by posting a job with HaMuch and we'll send it to extension builders in N16.
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 - £17,724

Two storey extension - £88,336

Build a timber frame extension - £26,224

Build a swimming pool - £81,224

Single storey extension - £59,480

Side return extension - £44,020

Install an RSJ - £2,424

Outbuilding - £10,224

Build a Mansard loft conversion - £52,224

Loft conversion - £35,850

Build a kitchen extension - £42,224

Hip to gable loft conversion - £42,224

Granny annexe - £87,224

Garden office - £10,224

Convert a Garage - £16,224

Garage - £18,724

Build a flat roof extension - £22,224

Build a dormer loft conversion - £42,224

Concrete foundations - £6,474

Convert a bungalow loft - £29,224

Convert a basement - £40,020