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Greens Gardening & Landscape Property Maintenance
John Mcdonagh
Watch our short video highlighting all our expertise and services here:
more than 10 y...
Cre8tive Contractors Ltd
Cre8tive Contractors Ltd are here to help customers who need an Extension Builder in SE20. We offer a competitive rate to complete all your extensi...
RCB Group Design & Build
Vasi J
No Call out charges!
All Jobs Fully Insured and Guaranteed !!!
All aspects of Plumbing, Heating and Drains....
..."I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY
Glenn Miller Builders Limited
Glenn Miller
Relax... you have found a reliable extension builder in SE20. Glenn Miller Builders Limited is a friendly and reliable company based in SE20 who co...
Aviemore Building Contractors Ltd
Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in SE20. No obligation ...
Oaksure Construction
Stuart Bogazzi
Working as a builder for over 20 years now.
Family run business
Can sort any problem out and help build your dreams.
Bhagtana & Co Construction
Experienced extension builder ready to quote for your work. Bhagtana & Co Construction is the best extension builder in SE20. No obligation free qu...
K S BUILDERS (UK) LTD
Trusted and professional extension builder in SE20. Experienced in all extension buildering work and keeping within budget and on quote. K S BUILDE...
VDL Construction Ltd
Need to find an Extension Builder near you for all your extension buildering work?
VDL Construction Ltd provides a local, trusted extension...
A & P Master Construction
Experienced extension builder ready to quote for your work. A & P Master Construction is the best extension builder in SE20. No obligation free quo...
Extension builder estimates (based on hourly rates) to build a single storey extension in SE20
- How much does a single storey extension cost?
- Single storey extension cost calculator
- What size single storey extension can I build without planning permission?
- Do I need an architect for an extension?
- How deep do foundations need to be for a single storey extension?
- Is it cheaper to have an extension or a conservatory?
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Estimates for common extension builder jobs in SE20;
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 - £17,596
Two storey extension - £88,144
Build a timber frame extension - £26,096
Build a swimming pool - £81,096
Single storey extension - £56,920
Side return extension - £42,580
Install an RSJ - £2,296
Outbuilding - £10,096
Build a Mansard loft conversion - £52,096
Loft conversion - £34,650
Build a kitchen extension - £42,096
Hip to gable loft conversion - £42,096
Granny annexe - £87,096
Garden office - £10,096
Convert a Garage - £16,096
Garage - £18,596
Build a flat roof extension - £22,096
Build a dormer loft conversion - £42,096
Concrete foundations - £6,346
Convert a bungalow loft - £29,096
Convert a basement - £38,580