We send your job to ALL L12 extension builders
Available extension builders in L12 reply
Select your affordable L12 extension builder
Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in L12. No obligation free quotes...
J.M.C Building Services is a trusted extension builder serving customers in L12 and the surrounding area. Contact us to today to get a competitive ...
Relax... you have found a reliable extension builder in L12. KM Building Services is a friendly and reliable company based in L12 who consider no j...
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 L12? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
Liverpool Builder is an established extension buildering business in L12. We come highly recommended and provide competitive quotes for your work.<...
J J Nuttall Specialist Roofing Ltd are here to help customers who need an Extension Builder in L12. We offer a competitive rate to complete all you...
Relax... you have found a reliable extension builder in L12. R Sargeant is a friendly and reliable company based in L12 who consider no job as too ...
Experienced extension builder ready to quote for your work. Oxygen Property Partners is the best extension builder in L12. No obligation free quot...
Relax... you have found a reliable extension builder in L12. Hyst is a friendly and reliable company based in L12 who consider no job as too big or...

In L12, prices for dormer loft conversions range from £41,552 (Liverpool Builder based in L12) to £41,936 (P & P Building Services based in L11), 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 L12. Post your job on HaMuch now and we'll put you in touch with available extension builders.
"Dormer loft conversion" - L18, job posted 25/02/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Knowsley | £31 | £222 |
| Build A Dormer Loft Conversion near Kirkby | £31 | £224 |
| 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 Bootle | £33 | £228 |
| Build A Dormer Loft Conversion near Liverpool | £31 | £222 |
| Build A Dormer Loft Conversion near Maghull | £34 | £231 |
| Build A Dormer Loft Conversion near Wallasey | £32 | £224 |
| Build A Dormer Loft Conversion near Birkenhead | £31 | £219 |
| Build A Dormer Loft Conversion near Crosby | £35 | £234 |
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 - £17,255

Two storey extension - £87,633

Build a timber frame extension - £25,755

Build a swimming pool - £80,755

Single storey extension - £50,104

Side return extension - £38,746

Install an RSJ - £1,955

Outbuilding - £9,755

Build a Mansard loft conversion - £51,755

Loft conversion - £31,455

Build a kitchen extension - £41,755

Hip to gable loft conversion - £41,755

Granny annexe - £86,755

Garden office - £9,755

Convert a Garage - £15,755

Garage - £18,255

Build a flat roof extension - £21,755

Build a dormer loft conversion - £41,755

Concrete foundations - £6,005

Convert a bungalow loft - £28,755

Convert a basement - £34,746