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M C BUILDER (YORKSHIRE) LTD is an established extension buildering business in Knottingley. We come highly recommended and provide competitive quot...
NSB is a trusted extension builder serving customers in Knottingley and the surrounding area. Contact us to today to get a competitive quote for ex...
From £30,975
ANDY HARDEMAN
Knottingley, WF11
Need to find an Extension Builder near you for all your extension buildering work?
Ashdaleconstruction provides a local, trusted extension ...
From £31,650
Graham Kirkaldy
I've been in the trade over 25 years working on commercial and domestic high end properties
From £31,200
Need an Extension Builder in Knottingley? The Poured Project Ltd has been helping local clients (20 mile radius) with their extension buildering jo...
From £33,000
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £34,575
The Yorkshire Lime Company Ltd is an established and experienced local extension builder in Knottingley. Please contact us for a free, no obligatio...
From £30,900
D Noble Limited Building And Civil Engineering Contracts is an established extension buildering business in Knottingley. We come highly recommended...
From £29,850
Experienced extension builder ready to quote for your work. Noble Homes is the best extension builder in Knottingley. No obligation free quotes and...
From £34,050
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in Knottingley by posting your job to extension builders in Knottingley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Pontefract | £30 | £228 |
| Loft Conversion near Castleford | £30 | £225 |
| Loft Conversion near Normanton | £30 | £233 |
| Loft Conversion near Rothwell | £30 | £230 |
| Loft Conversion near Selby | £30 | £240 |
| Loft Conversion near Wakefield | £31 | £240 |
| Loft Conversion near Beeston | £31 | £236 |
| Loft Conversion near Goole | £26 | £217 |
| Loft Conversion near Ossett | £33 | £245 |
| Loft Conversion near Chapeltown | £30 | £232 |
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 - £17,332

Two storey extension - £87,748

Build a timber frame extension - £25,832

Build a swimming pool - £80,832

Single storey extension - £51,640

Side return extension - £39,610

Install an RSJ - £2,032

Outbuilding - £9,832

Build a Mansard loft conversion - £51,832

Loft conversion - £32,175

Build a kitchen extension - £41,832

Hip to gable loft conversion - £41,832

Granny annexe - £86,832

Garden office - £9,832

Convert a Garage - £15,832

Garage - £18,332

Build a flat roof extension - £21,832

Build a dormer loft conversion - £41,832

Concrete foundations - £6,082

Convert a bungalow loft - £28,832

Convert a basement - £35,610