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

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From £21,992

Last active Nov 26
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J.T.Construction

J.T.Construction is a trusted extension builder serving customers in Runcorn and the surrounding area. Contact us to today to get a competitive quo...

From £21,672

Last active Nov 26
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Fixit Cheshire

Fixit Cheshire is an established and experienced local extension builder in Runcorn. Please contact us for a free, no obligation quote and competit...

From £21,824

Last active Nov 26
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Warrington Builders

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

From £21,608

Last active Oct 26
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R A C Gas

Richie Crawley

Location

Runcorn, WA7

Relax... you have found a reliable extension builder in Runcorn. R A C Gas is a friendly and reliable company based in Runcorn who consider no job ...

From £21,952

Last active Jul 26
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National Plumbing and Heating

Get an Extension Builder in Runcorn who you can trust. National Plumbing and Heating provide friendly and reliable extension buildering services to...

From £21,872

Last active May 26
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Elevate Finishing

Experienced extension builder ready to quote for your work. Elevate Finishing is the best extension builder in Runcorn. No obligation free quotes a...

From £21,784

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SLE Services

Carl Tommons

Building from the Ground up through to fit out, new build, refurb, extension.

From £21,648

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HPH Improvment&Building

Trusted and professional extension builder in Runcorn. Experienced in all extension buildering work and keeping within budget and on quote. HPH Imp...

From £21,696

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Space Design & Build

Welcome to Space Design & Build a building company based in Warrington.With nearly 40 years combined experience in the industry Space Design & Buil...

From £21,808

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Webby

Relax... you have found a reliable extension builder in Runcorn. Webby is a friendly and reliable company based in Runcorn who consider no job as t...

Flat roof extension cost in Runcorn

Estimates for build a flat roof extension near Runcorn

A flat roof extension ranges from the cheapest of £21,608 (R A C Gas based in WA7) to the dearest of £21,992 (J.T.Construction based in WA5), 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 Runcorn by posting a job with HaMuch. We'll send it to extension builders in Runcorn.


Estimates for common extension builder jobs in Runcorn;

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...