Extend your BL1 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 BL1? 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 BL1 extension builders

Compare quotes

Compare quotes

Available extension builders in BL1 reply

Save Money

Save Money

Select your affordable BL1 extension builder

Post your job

From £21,768

Last active Sep 26
Get quotes

Wallplas

Wallplas is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for your work.

From £21,688

Last active Sep 26
Get quotes

WWS Garage Doors & Shutters

WWS Garage Doors & Shutters is a trusted extension builder serving customers in BL1 and the surrounding area. Contact us to today to get a competit...

From £21,632

Last active Sep 26
Get quotes

Fishers Building & Paving Ltd

Fishers Building & Paving Ltd is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for...

From £21,664

Last active Sep 26
Get quotes

QUAYSTONE BUILDING LTD

QUAYSTONE BUILDING LTD are here to help customers who need an Extension Builder in BL1. We offer a competitive rate to complete all your extension ...

From £21,808

Last active Sep 26
Get quotes

CB BUILDING & JOINERY LTD

Need an Extension Builder in BL1? CB BUILDING & JOINERY LTD has been helping local clients (20 mile radius) with their extension buildering jobs fo...

From £21,704

Last active Sep 26
Get quotes

BRENCOLL BUILDING

BRENCOLL BUILDING is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for your work.<...

From £21,600

Last active Sep 26
Get quotes

Bolton Builders

Bolton Builders is an established and experienced local extension builder in BL1. Please contact us for a free, no obligation quote and competitive...

From £22,040

Last active Aug 26
Get quotes

PETER BALDWIN BUILDERS

PETER BALDWIN BUILDERS is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for your w...

From £21,672

Last active Aug 26
Get quotes

L D Debnam Building Services

L D Debnam Building Services is an established and experienced local extension builder in BL1. Please contact us for a free, no obligation quote an...

From £21,472

Last active Jul 26
Get quotes

A AND S SCHOFIELD BLDRS LTD

Simon Schofield

A AND S SCHOFIELD BLDRS LTD is an established extension buildering business in BL1. We come highly recommended and provide competitive quotes for y...

Flat roof extension cost in BL1

Estimates for build a flat roof extension near BL1

A flat roof extension ranges from the cheapest of £21,472 (A AND S SCHOFIELD BLDRS LTD based in BL3) to the dearest of £22,040 (PETER BALDWIN BUILDERS based in BL1), 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 BL1 by posting a job with HaMuch. We'll send it to extension builders in BL1.


Estimates for common extension builder jobs in BL1;

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...