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Torrington
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
SH Enterprise
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
"Concrete foundation" - W1T, job posted 16/10/25
CK Constructions & Development Ltd
CK Constructions & Development Ltd is a trusted extension builder serving customers in Mansion House and the surrounding area. Contact us to today ...
"Basement conversion" - LAMBETH, job posted 02/05/25
GS Fabric Ltd
GS Fabric Ltd is an established and experienced local extension builder in Mansion House. Please contact us for a free, no obligation quote and com...
JM Building Services
JM Building Services is a trusted extension builder serving customers in Mansion House and the surrounding area. Contact us to today to get a compe...
Buildwiser
Buildwiser is a trusted extension builder serving customers in Mansion House and the surrounding area. Contact us to today to get a competitive quo...
Renobuild Group
Daniel Dixon
Need to find an Extension Builder near you for all your extension buildering work?
Renobuild Group provides a local, trusted extension buil...
AAA Design Decorators
AAA Design Decorators are here to help customers who need an Extension Builder in Mansion House. We offer a competitive rate to complete all your e...
AGRI CONSTRUCTION
Need to find an Extension Builder near you for all your extension buildering work?
AGRI CONSTRUCTION provides a local, trusted extension bu...
AB Building Maintainance
Trusted and professional extension builder in Mansion House. Experienced in all extension buildering work and keeping within budget and on quote. A...
Q Lofts and Extensions
Anthony Sullivan
We build Lofts. We build Extensions. We undertake conversions. Our Terms and conditions apply as shown in our starter packs.
£41/hr
£255/day
TOP CONSTRUCTION
TOP CONSTRUCTION is an established extension buildering business in Mansion House. We come highly recommended and provide competitive quotes for yo...
£42/hr
£262/day
Omniform
Omniform are here to help customers who need an Extension Builder in Mansion House. We offer a competitive rate to complete all your extension buil...
£46/hr
£286/day
Volute London
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£45/hr
£282/day
Flow Property Services
Need an Extension Builder in Mansion House? Flow Property Services has been helping local clients (5 mile radius) with their extension buildering j...
£46/hr
£284/day
Aylaa Exclusive
Need an Extension Builder in Mansion House? Aylaa Exclusive has been helping local clients (5 mile radius) with their extension buildering jobs for...
£48/hr
£299/day
Londoner Building Ltd.
We have the experience and knowledge to carry out any project, big or small. Our team of experts thoroughly plan the budget and manage your projec...
£48/hr
£301/day
London Roof Gardens
London Roof Gardens is a trusted extension builder serving customers in Mansion House and the surrounding area. Contact us to today to get a compet...
£40/hr
£249/day
SDL PKB
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Quickly find an Extension Builder in Mansion House
Use these steps to find Extension Builders in Mansion House for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Mansion House. 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 Mansion House 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 - £26,240
Garden office - £10,240
Granny annexe - £87,240
Build a flat roof extension - £22,240
Convert a Garage - £16,240
Hip to gable loft conversion - £42,240
Convert a bungalow loft - £29,240
Build a dormer loft conversion - £42,240
Build a swimming pool - £81,240
Build a Mansard loft conversion - £52,240
Concrete foundations - £6,490
Underpin a building - £17,740
Two storey extension - £88,360
Convert a basement - £40,200
Side return extension - £44,200
Loft conversion - £36,000
Garage - £18,740
Single storey extension - £59,800
Outbuilding - £10,240
Install an RSJ - £2,440
Build a kitchen extension - £42,240
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