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G. Finnigan Builders is an established extension buildering business in Widnes. We come highly recommended and provide competitive quotes for your ...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
J.T.Construction is a trusted extension builder serving customers in Widnes and the surrounding area. Contact us to today to get a competitive quot...
Fixit Cheshire is an established and experienced local extension builder in Widnes. Please contact us for a free, no obligation quote and competiti...
Need to find an Extension Builder near you for all your extension buildering work?
JOHN ROSS BUILDERS LTD provides a local, trusted extensi...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Widnes? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
Mark Robinson
Trusted and professional extension builder in Widnes. Experienced in all extension buildering work and keeping within budget and on quote. M L R Bu...
Richie Crawley
Relax... you have found a reliable extension builder in Widnes. R A C Gas is a friendly and reliable company based in Widnes who consider no job as...
Relax... you have found a reliable extension builder in Widnes. R Sargeant is a friendly and reliable company based in Widnes who consider no job a...

In Widnes, prices for dormer loft conversions range from £41,608 (M L R Building Services based in WA11) to £41,992 (J.T.Construction based in WA5), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in Widnes. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Widnes | £31 | £220 |
| Build A Dormer Loft Conversion near Halton | £31 | £220 |
| Build A Dormer Loft Conversion near Runcorn | £33 | £228 |
| Build A Dormer Loft Conversion near Huyton with Roby | £31 | £225 |
| Build A Dormer Loft Conversion near Prescot | £31 | £223 |
| Build A Dormer Loft Conversion near Knowsley | £31 | £222 |
| Build A Dormer Loft Conversion near St Helens | £31 | £224 |
| Build A Dormer Loft Conversion near Warrington | £31 | £222 |
| Build A Dormer Loft Conversion near Newton-le-Willows | £31 | £221 |
| Build A Dormer Loft Conversion near Golborne | £30 | £222 |
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 - £17,240

Two storey extension - £87,610

Build a timber frame extension - £25,740

Build a swimming pool - £80,740

Single storey extension - £49,800

Side return extension - £38,575

Install an RSJ - £1,940

Outbuilding - £9,740

Build a Mansard loft conversion - £51,740

Loft conversion - £31,313

Build a kitchen extension - £41,740

Hip to gable loft conversion - £41,740

Granny annexe - £86,740

Garden office - £9,740

Convert a Garage - £15,740

Garage - £18,240

Build a flat roof extension - £21,740

Build a dormer loft conversion - £41,740

Concrete foundations - £5,990

Convert a bungalow loft - £28,740

Convert a basement - £34,575