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Select your affordable Friern Barnet extension builder
SJ Expert Building Services are here to help customers who need an Extension Builder in Friern Barnet. We offer a competitive rate to complete all ...
Dimitar Vakavliev
We are reliable tradesmen delivering quality works with attention to detail
Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...
New Finishes is a trusted extension builder serving customers in Friern Barnet and the surrounding area. Contact us to today to get a competitive q...
Relax... you have found a reliable extension builder in Friern Barnet. Pavillion Building Services is a friendly and reliable company based in Frie...
Wittick Building Ltd is a trusted extension builder serving customers in Friern Barnet and the surrounding area. Contact us to today to get a compe...
Need an Extension Builder in Friern Barnet? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension builder...
GG CONSTRUCTION LTD is a trusted extension builder serving customers in Friern Barnet and the surrounding area. Contact us to today to get a compet...
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Relax... you have found a reliable extension builder in Friern Barnet. Taylor Construction Services Ltd is a friendly and reliable company based in...

Outbuilding costs in Friern Barnet range from the cheapest of £9,320 (Onyx Iv based in N11) to the dearest of £10,376 (WT Construction Service Ltd based in N11), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in Friern Barnet by posting a job with HaMuch and we will send it to extension builders.
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 - £17,522

Two storey extension - £88,034

Build a timber frame extension - £26,022

Build a swimming pool - £81,022

Single storey extension - £55,448

Side return extension - £41,752

Install an RSJ - £2,222

Outbuilding - £10,022

Build a Mansard loft conversion - £52,022

Loft conversion - £33,960

Build a kitchen extension - £42,022

Hip to gable loft conversion - £42,022

Granny annexe - £87,022

Garden office - £10,022

Convert a Garage - £16,022

Garage - £18,522

Build a flat roof extension - £22,022

Build a dormer loft conversion - £42,022

Concrete foundations - £6,272

Convert a bungalow loft - £29,022

Convert a basement - £37,752