We send your job to ALL Pentraeth extension builders
Available extension builders in Pentraeth reply
Select your affordable Pentraeth extension builder
Robert Mitchell
Relax... you have found a reliable extension builder in Pentraeth. Property Maintenance Solutions is a friendly and reliable company based in Pentr...
Need an Extension Builder in Pentraeth? Hughes Construction has been helping local clients (20 mile radius) with their extension buildering jobs fo...
Andrew Mortimer
Fiting of door internal/external All joinery work from new joists to fitting off skirting boards Kitchen fitting Staircase or replac...
Paul Williams
Need to find an Extension Builder near you for all your extension buildering work?
W F CLAYTON & CO LTD provides a local, trusted extension...

Building a granny annexe ranges from £86,520 (Property Maintenance Solutions based in LL74) to £86,744 (Balmoral joinery/construction based in LL60), 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 Pentraeth by posting a job with HaMuch. We will send it to extension builders in Pentraeth who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Conwy | £28 | £211 |
| Granny Annexe near Conway | £28 | £211 |
| Granny Annexe near Llandudno | £28 | £211 |
| Granny Annexe near Colwyn Bay | £28 | £211 |
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 - £17,178

Two storey extension - £87,517

Build a timber frame extension - £25,678

Build a swimming pool - £80,678

Single storey extension - £48,560

Side return extension - £37,878

Install an RSJ - £1,878

Outbuilding - £9,678

Build a Mansard loft conversion - £51,678

Loft conversion - £30,731

Build a kitchen extension - £41,678

Hip to gable loft conversion - £41,678

Granny annexe - £86,678

Garden office - £9,678

Convert a Garage - £15,678

Garage - £18,178

Build a flat roof extension - £21,678

Build a dormer loft conversion - £41,678

Concrete foundations - £5,928

Convert a bungalow loft - £28,678

Convert a basement - £33,878