From £86,760
CJ Construction are here to help customers who need an Extension Builder in Barnston. We offer a competitive rate to complete all your extension bu...
From £86,608
Relax... you have found a reliable extension builder in Barnston. R A C Gas is a friendly and reliable company based in Barnston who consider no jo...
From £86,552
Liverpool Builder is an established extension buildering business in Barnston. We come highly recommended and provide competitive quotes for your w...
From £86,672
J.M.C Building Services is a trusted extension builder serving customers in Barnston and the surrounding area. Contact us to today to get a competi...
From £86,704
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,768
Relax... you have found a reliable extension builder in Barnston. KM Building Services is a friendly and reliable company based in Barnston who con...
From £86,472
Trusted and professional extension builder in Barnston. Experienced in all extension buildering work and keeping within budget and on quote. Jones ...
From £86,976
Nathan Thomas Plumbing is an established extension buildering business in Barnston. We come highly recommended and provide competitive quotes for y...
From £87,032
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in Barnston. We offer a competitive rate to complete all your ...
From £87,056
AJ Solutions is an established extension buildering business in Barnston. We come highly recommended and provide competitive quotes for your work.<...

Building a granny annexe ranges from £86,472 (Jones Landscaping based in L30) to £87,056 (AJ Solutions based in CH1), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in Barnston by posting a job with HaMuch. We will send it to extension builders in Barnston who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Heswall | £30 | £213 |
| Granny Annexe near Wirral | £31 | £219 |
| Granny Annexe near Bebington | £31 | £222 |
| Granny Annexe near Birkenhead | £31 | £219 |
| Granny Annexe near Wallasey | £32 | £224 |
| Granny Annexe near Liverpool | £31 | £222 |
| Granny Annexe near Bootle | £32 | £223 |
| Granny Annexe near Connah's Quay | £33 | £229 |
| Granny Annexe near Ellesmere Port | £31 | £214 |
| Granny Annexe near Crosby | £33 | £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 - £17,260

Two storey extension - £87,640

Build a timber frame extension - £25,760

Build a swimming pool - £80,760

Single storey extension - £50,200

Side return extension - £38,800

Install an RSJ - £1,960

Outbuilding - £9,760

Build a Mansard loft conversion - £51,760

Loft conversion - £31,500

Build a kitchen extension - £41,760

Hip to gable loft conversion - £41,760

Granny annexe - £86,760

Garden office - £9,760

Convert a Garage - £15,760

Garage - £18,260

Build a flat roof extension - £21,760

Build a dormer loft conversion - £41,760

Concrete foundations - £6,010

Convert a bungalow loft - £28,760

Convert a basement - £34,800