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

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From £21,928

Last active Mar 26
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B.UK Property Services

Our company is built on trust and communication with our clients.We are of firm belief that our customers needs are of the utmost importance.

From £21,672

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A M F BUILDING CONTRACTOR

Experienced extension builder ready to quote for your work. A M F BUILDING CONTRACTOR is the best extension builder in Harwich. No obligation free ...

From £21,552

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T.S Stone Restoration

Ted Smith

Qualified stonerestorer 35years experience own public liability insurance. 

Worked on numerous listedbuilding  through out &nb...

From £22,144

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Edwin Lewis Dickinson Ltd

Edwin Lewis Dickinson is a well established company providing all of its customers with the very highest quality of workmanship using only the best...

From £22,056

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AP Laflin Builders Ltd

Relax... you have found a reliable extension builder in Harwich. AP Laflin Builders Ltd is a friendly and reliable company based in Harwich who con...

From £21,856

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Stately Home Developments Ltd

From Grandfather to Grandson, we have a combined experience of over 40 years within the construction industry providing a wide range of building se...

From £21,976

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Greyline Property Care and Improvement

Greyline Interiors is a family run home refurbishment business with an eye for the latest trends and traditional values.We strive for quality, valu...

From £21,800

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James Francis

Trusted and professional extension builder in Harwich. Experienced in all extension buildering work and keeping within budget and on quote. James F...

From £22,112

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San Diego Construction Inc

San Diego Construction Custom Homes has experience building homes in the UK, Canada and the United States since 1999. It was founded on quality and...

Flat roof extension cost in Harwich

Estimates for build a flat roof extension near Harwich

A flat roof extension ranges from the cheapest of £21,552 (T.S Stone Restoration based in CO16) to the dearest of £22,144 (Edwin Lewis Dickinson Ltd based in CO12), 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 Harwich by posting a job with HaMuch. We'll send it to extension builders in Harwich.


Estimates for common extension builder jobs in Harwich;

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...