Extend your S75 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 S75?

Build a flat roof extension cost in S75 - Sort by rates or availability

M C BUILDER (YORKSHIRE) LTD

From £21,944

(last active 02/10/26)

Location

Micklefield, LS25

M C BUILDER (YORKSHIRE) LTD is an established extension buildering business in S75. We come highly recommended and provide competitive quotes for y...

NE BUILDING SERVICES

From £21,808

(last active 02/10/26)

Location

Austhorpe, LS15

Trusted and professional extension builder in S75. Experienced in all extension buildering work and keeping within budget and on quote. NE BUILDING...

Fearnville Driveways

From £21,632

(last active 02/10/26)

Location

Fearnville, LS8

Trusted and professional extension builder in S75. Experienced in all extension buildering work and keeping within budget and on quote. Fearnville ...

Foundation Building Services

From £21,824

(last active 02/10/26)

Location

Lofthouse, WF3

Relax... you have found a reliable extension builder in S75. Foundation Building Services is a friendly and reliable company based in S75 who consi...

D & D Builders

From £21,944

(last active 02/10/26)

Location

Leeds, LS7

Need an Extension Builder in S75? D & D Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many year...

A Field Construction LTD

From £22,008

(last active 02/10/26)

Location

Sheffield, S8

We are a family run business with 20 years experience.

We take great care and attention to the work we carry out and pride ourselves on ...

CS Construction & Conversions

From £21,968

(last active 29/09/26)

Location

Rotherham, S65

Relax... you have found a reliable extension builder in S75. CS Construction & Conversions is a friendly and reliable company based in S75 who cons...

AAA BUILDERS

From £21,632

(last active 28/09/26)

Location

Bankfoot, BD5

AAA BUILDERS are here to help customers who need an Extension Builder in S75. We offer a competitive rate to complete all your extension buildering...

J W Building Services

From £21,920

(last active 20/09/26)

Location

Leeds, LS8

Experienced extension builder ready to quote for your work. J W Building Services is the best extension builder in S75. No obligation free quotes a...

Watertight Roofing Leeds

From £21,832

(last active 20/09/26)

Location

Leeds, LS12

Need an Extension Builder in S75? Watertight Roofing Leeds has been helping local clients (20 mile radius) with their extension buildering jobs for...

Flat roof extension cost in S75

Estimates for build a flat roof extension near S75

A flat roof extension ranges from the cheapest of £21,632 (Fearnville Driveways based in LS8) to the dearest of £22,008 (A Field Construction LTD based in S8), 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 S75 by posting a job with HaMuch. We'll send it to extension builders in S75.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Build A Flat Roof Extension near Barnsley£31£242
Build A Flat Roof Extension near Wakefield£31£240
Build A Flat Roof Extension near Ossett£33£245
Build A Flat Roof Extension near Dewsbury£33£245
Build A Flat Roof Extension near Normanton£30£233
Build A Flat Roof Extension near Mirfield£31£236
Build A Flat Roof Extension near Rotherham£33£257
Build A Flat Roof Extension near Holmfirth£30£232
Build A Flat Roof Extension near Kirklees£30£231
Build A Flat Roof Extension near Batley£32£239

Estimates for common extension builder jobs in S75;

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.

Underpin a building

Underpin a building - £17,351

Two storey extension

Two storey extension - £87,777

Build a timber frame extension

Build a timber frame extension - £25,851

Build a swimming pool

Build a swimming pool - £80,851

Single storey extension

Single storey extension - £52,024

Side return extension

Side return extension - £39,826

Install an RSJ

Install an RSJ - £2,051

Outbuilding

Outbuilding - £9,851

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,851

Loft conversion

Loft conversion - £32,355

Build a kitchen extension

Build a kitchen extension - £41,851

Hip to gable loft conversion

Hip to gable loft conversion - £41,851

Granny annexe

Granny annexe - £86,851

Garden office

Garden office - £9,851

Convert a Garage

Convert a Garage - £15,851

Garage

Garage - £18,351

Build a flat roof extension

Build a flat roof extension - £21,851

Build a dormer loft conversion

Build a dormer loft conversion - £41,851

Concrete foundations

Concrete foundations - £6,101

Convert a bungalow loft

Convert a bungalow loft - £28,851

Convert a basement

Convert a basement - £35,826

More extensions & conversions cost guides...