We send your job to ALL Cymmer extension builders
Available extension builders in Cymmer reply
Select your affordable Cymmer extension builder
P ALLEN BUILDERS is an established and experienced local extension builder in Cymmer. Please contact us for a free, no obligation quote and competi...
Barlam Drylining Ltd are here to help customers who need an Extension Builder in Cymmer. We offer a competitive rate to complete all your extension...
Cymmer, CF39
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
Relax... you have found a reliable extension builder in Cymmer. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in Cymmer w...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
S J S Services (Wales) Ltd is a trusted extension builder serving customers in Cymmer and the surrounding area. Contact us to today to get a compet...
Need an Extension Builder in Cymmer? SP Property Maintenance has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £86,528
Need an Extension Builder in Cymmer? A POWELL CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs...
From £86,616
Excel Home Design Ltd is an established extension buildering business in Cymmer. We come highly recommended and provide competitive quotes for your...
From £86,576
L E JONES BUILDER is an established extension buildering business in Cymmer. We come highly recommended and provide competitive quotes for your wor...

Building a granny annexe ranges from £86,528 (A POWELL CONSTRUCTION LTD based in CF44) to £86,896 (Barlam Drylining Ltd based in CF45), 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 Cymmer by posting a job with HaMuch. We will send it to extension builders in Cymmer who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Rhondda | £31 | £206 |
| Granny Annexe near Rhondda, Cynon, Taff | £31 | £209 |
| Granny Annexe near Pontypridd | £33 | £211 |
| Granny Annexe near Church Village | £34 | £214 |
| Granny Annexe near Aberdare | £32 | £212 |
| Granny Annexe near Caerphilly | £33 | £208 |
| Granny Annexe near Bridgend | £32 | £200 |
| Granny Annexe near Maesteg | £38 | £283 |
| Granny Annexe near Merthyr Tydfil | £33 | £220 |
| Granny Annexe near Pyle | £34 | £262 |
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 - £17,203

Two storey extension - £87,555

Build a timber frame extension - £25,703

Build a swimming pool - £80,703

Single storey extension - £49,064

Side return extension - £38,161

Install an RSJ - £1,903

Outbuilding - £9,703

Build a Mansard loft conversion - £51,703

Loft conversion - £30,968

Build a kitchen extension - £41,703

Hip to gable loft conversion - £41,703

Granny annexe - £86,703

Garden office - £9,703

Convert a Garage - £15,703

Garage - £18,203

Build a flat roof extension - £21,703

Build a dormer loft conversion - £41,703

Concrete foundations - £5,953

Convert a bungalow loft - £28,703

Convert a basement - £34,161