Relax... you have found a reliable extension builder in Grassendale. A.B Building Services Ltd is a friendly and reliable company based in Grassend...
Robuild - Waterwise is an established extension buildering business in Grassendale. We come highly recommended and provide competitive quotes for y...
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 Grassendale? PK.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many...
Sean Mooney
SJBuild Ltd is an established and experienced local extension builder in Grassendale. Please contact us for a free, no obligation quote and competi...
Need to find an Extension Builder near you for all your extension buildering work?
S.L.P Property Maintenance provides a local, trusted ext...
Danny Anderson
Danny Anderson Builder is an established extension buildering business in Grassendale. We come highly recommended and provide competitive quotes fo...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
J.M.C Building Services is a trusted extension builder serving customers in Grassendale and the surrounding area. Contact us to today to get a comp...
Need an Extension Builder in Grassendale? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for ...

Building a granny annexe ranges from £86,392 (SJBuild Ltd based in CH63) to £86,952 (R J Property Maintenance & Repair based in CH63), 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 Grassendale by posting a job with HaMuch. We will send it to extension builders in Grassendale who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bebington | £31 | £222 |
| Granny Annexe near Huyton with Roby | £31 | £225 |
| Granny Annexe near Liverpool | £31 | £222 |
| Granny Annexe near Ellesmere Port | £31 | £214 |
| Granny Annexe near Birkenhead | £31 | £219 |
| Granny Annexe near Knowsley | £31 | £222 |
| Granny Annexe near Prescot | £31 | £223 |
| Granny Annexe near Widnes | £31 | £220 |
| Granny Annexe near Wallasey | £32 | £224 |
| Granny Annexe near Halton | £31 | £220 |
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