Extend your Winchester 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 Winchester? To see prices and availability for your job click green button.

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From £22,800

Rates verified Oct 26
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Boss

Karl Builder

Location

Winchester, SO23

Hi we are a building company that have been working in the swindon area for many years we also work as far as bristol We do loft conversion. ...

From £21,872

Last active Oct 26
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General Building Services (Southampton) Ltd

Luke Rees

General Building Services (Southampton) Ltd is a trusted extension builder serving customers in Winchester and the surrounding area. Contact us to ...

From £22,176

Last active Oct 26
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CSY Construction Ltd

Experienced extension builder ready to quote for your work. CSY Construction Ltd is the best extension builder in Winchester. No obligation free qu...

From £22,136

Last active Jul 26
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Artisan Builders

Experienced extension builder ready to quote for your work. Artisan Builders is the best extension builder in Winchester. No obligation free quotes...

From £21,736

Last active Jun 26
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Property Maintenance Repair

Relax... you have found a reliable extension builder in Winchester. Property Maintenance Repair is a friendly and reliable company based in Winches...

From £21,856

Last active Nov 25
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LEX Projects Limited

Location

Winchester, SO23

Lex Projects is a family run residential building company based in Winchester, renowned for our unrivalled high-end finishes and projects, using on...

From £21,928

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Protouch Builders

Protouch Builders is an established extension buildering business in Winchester. We come highly recommended and provide competitive quotes for your...

From £21,776

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Ace Brickwork Ltd

Ace Brickwork Ltd are here to help customers who need an Extension Builder in Winchester. We offer a competitive rate to complete all your extensio...

From £22,080

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Darren Hitchins T/A The Honest Builder

Darren Hitchins T/A The Honest Builder is an established extension buildering business in Winchester. We come highly recommended and provide compet...

From £22,112

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Chris Buttler Builders

Experienced extension builder ready to quote for your work. Chris Buttler Builders is the best extension builder in Winchester. No obligation free ...

Flat roof extension cost in Winchester

Estimates for build a flat roof extension near Winchester

A flat roof extension ranges from the cheapest of £21,736 (Property Maintenance Repair based in SO50) to the dearest of £22,800 (Boss based in SO23), 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 Winchester by posting a job with HaMuch. We'll send it to extension builders in Winchester.


Estimates for common extension builder jobs in Winchester;

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...