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

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

Post your job for free

We send your job to ALL South East extension builders

Compare quotes

Compare quotes

Available extension builders in South East reply

Save Money

Save Money

Select your affordable South East extension builder

Post your job

From £22,376

Last active Nov 26
Get quotes

Exquisite Design & Build Ltd

Need an Extension Builder in South East? Exquisite Design & Build Ltd has been helping local clients (5 mile radius) with their extension builderin...

From £21,984

Last active Oct 26

2 reviews

Get quotes

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

From £22,056

Last active Oct 26
Get quotes

The Perfectionist

Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in South East. No obligation free quote...

From £22,320

Last active Sep 26
Get quotes

D & G Building & Decorating

Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in South East. No obligation ...

From £22,248

Last active Sep 26
Get quotes

Cornerstones Construction

Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in South East. No obligation fr...

From £22,208

Last active Sep 26
Get quotes

Vidanov Building Services

Trusted and professional extension builder in South East. Experienced in all extension buildering work and keeping within budget and on quote. Vida...

From £22,256

Last active Sep 26
Get quotes

DUWIX BUILDING MAINTENANCE

DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in South East. We offer a competitive rate to complete all your...

From £22,096

Last active Sep 26
Get quotes

Building and Plastering Solution

Peter Cesma

Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services.  Public liabil...

From £22,176

Last active Aug 26
Get quotes

Home Tranformers Ltd

At Home Tranformers Ltd we have been fitting bespoke bathrooms for over 10 years. We pride ourselves on being the go-to bathroom fitters for discer...

From £22,456

Last active Jul 26
Get quotes

Ask Building

Need to find an Extension Builder near you for all your extension buildering work?

Ask Building provides a local, trusted extension builder...

Flat roof extension cost in South East

Estimates for build a flat roof extension near South East

A flat roof extension ranges from the cheapest of £21,984 (RCB Group Design & Build based in SE21) to the dearest of £22,456 (Ask Building based in SE1), 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 South East by posting a job with HaMuch. We'll send it to extension builders in South East.


Estimates for common extension builder jobs in South East;

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...