Extend your Loughton with an extension

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Loughton? To see prices and availability for your job click green button.

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From £22,120

Rates verified Oct 26
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SDS Constructions

Sean Smithers

Our building services company SDS Constructions has been established for many years and have been providing customers in Dagenham and the surroundi...

From £23,232

Rates verified Oct 26
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Optimus Build Solutions

Vasile Boghean

Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...

From £22,400

Rates verified Oct 26
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SC General Builders Ltd

SC General Builders Ltd are here to help customers who need an Extension Builder in Loughton. We offer a competitive rate to complete all your exte...

From £22,080

Last active Nov 26
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ANGLE BUILDERS

ANGLE BUILDERS is an established and experienced local extension builder in Loughton. Please contact us for a free, no obligation quote and competi...

From £21,880

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Can design and Construction

Erald Kanani

Member since August 2025

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £22,224

Last active Nov 26
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Gems Building & Maintenance Services

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £23,584

Last active Nov 26
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Propello

Ali Alagoz

Propello is an established and experienced local extension builder in Loughton. Please contact us for a free, no obligation quote and competitive ...

From £22,248

Last active Nov 26
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Bspec Ltd

Mick Singh

At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.

From £22,240

Last active Nov 26
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PHOENIX DEVELOPMNTS LONDON LTD

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £22,712

Last active Nov 26
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Render

Experienced extension builder ready to quote for your work. Render is the best extension builder in Loughton. No obligation free quotes and many ha...

Flat roof extension cost in Loughton

Estimates for build a flat roof extension near Loughton

A flat roof extension ranges from the cheapest of £21,880 (Can design and Construction based in Ig11) to the dearest of £23,584 (Propello based in E17), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes. 

Find out how much your flat roof extension will cost in Loughton by posting a job with HaMuch. We'll send it to extension builders in Loughton.


Estimates for common extension builder jobs in Loughton;

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.

More extensions & conversions cost guides...