Extend your Kettlethorpe 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 Kettlethorpe?

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

BP Builders

From £21,984

(last active 03/10/26)

Location

Longley, S5

BP Builders are here to help customers who need an Extension Builder in Kettlethorpe. We offer a competitive rate to complete all your extension bu...

Woodtec Joinery

From £22,256

(last active 03/10/26)

Location

Ecclesfield, S35

Woodtec Joinery is an established extension buildering business in Kettlethorpe. We come highly recommended and provide competitive quotes for your...

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 Kettlethorpe. We come highly recommended and provide competitive quo...

NE BUILDING SERVICES

From £21,808

(last active 02/10/26)

Location

Austhorpe, LS15

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

Fearnville Driveways

From £21,632

(last active 02/10/26)

Location

Fearnville, LS8

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

Foundation Building Services

From £21,824

(last active 02/10/26)

Location

Lofthouse, WF3

Relax... you have found a reliable extension builder in Kettlethorpe. Foundation Building Services is a friendly and reliable company based in Kett...

D & D Builders

From £21,944

(last active 02/10/26)

Location

Leeds, LS7

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

CS Construction & Conversions

From £21,968

(last active 29/09/26)

Location

Rotherham, S65

Relax... you have found a reliable extension builder in Kettlethorpe. CS Construction & Conversions is a friendly and reliable company based in Ket...

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 Kettlethorpe. We offer a competitive rate to complete all your extension b...

RB Building Services

From £22,040

(last active 25/09/26)

Location

Bingley, BD16

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

RB Building Services provides a local, trusted extension...

Flat roof extension cost in Kettlethorpe

Estimates for build a flat roof extension near Kettlethorpe

A flat roof extension ranges from the cheapest of £21,632 (Fearnville Driveways based in LS8) to the dearest of £22,256 (Woodtec Joinery based in S35), 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 Kettlethorpe by posting a job with HaMuch. We'll send it to extension builders in Kettlethorpe.


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 Wakefield£31£240
Build A Flat Roof Extension near Ossett£33£245
Build A Flat Roof Extension near Normanton£30£233
Build A Flat Roof Extension near Dewsbury£33£245
Build A Flat Roof Extension near Rothwell£30£230
Build A Flat Roof Extension near Morley£31£239
Build A Flat Roof Extension near Batley£32£239
Build A Flat Roof Extension near Beeston£31£236
Build A Flat Roof Extension near Mirfield£31£236
Build A Flat Roof Extension near Castleford£30£225

Estimates for common extension builder jobs in Kettlethorpe;

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 - £17,403

Two storey extension

Two storey extension - £87,855

Build a timber frame extension

Build a timber frame extension - £25,903

Build a swimming pool

Build a swimming pool - £80,903

Single storey extension

Single storey extension - £53,064

Side return extension

Side return extension - £40,411

Install an RSJ

Install an RSJ - £2,103

Outbuilding

Outbuilding - £9,903

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,903

Loft conversion

Loft conversion - £32,843

Build a kitchen extension

Build a kitchen extension - £41,903

Hip to gable loft conversion

Hip to gable loft conversion - £41,903

Granny annexe

Granny annexe - £86,903

Garden office

Garden office - £9,903

Convert a Garage

Convert a Garage - £15,903

Garage

Garage - £18,403

Build a flat roof extension

Build a flat roof extension - £21,903

Build a dormer loft conversion

Build a dormer loft conversion - £41,903

Concrete foundations

Concrete foundations - £6,153

Convert a bungalow loft

Convert a bungalow loft - £28,903

Convert a basement

Convert a basement - £36,411

More extensions & conversions cost guides...