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Select your affordable EN6 extension builder
Hertfordshi, EN6
Trusted and professional extension builder in EN6. Experienced in all extension buildering work and keeping within budget and on quote. Advance Con...
London Elite Construction is an established extension buildering business in EN6. We come highly recommended and provide competitive quotes for you...
Potters Bar, EN6
BSL are here to help customers who need an Extension Builder in EN6. We offer a competitive rate to complete all your extension buildering jobs to ...
Trusted and professional extension builder in EN6. Experienced in all extension buildering work and keeping within budget and on quote. SWB Constru...
From £46,900
London, EN6
Premium Design Construction Ltd. specialise in home remodelling and refurbishments from start to finish. Extensions, Loft conversion, bespoke carp...
From £44,380
Need to find an Extension Builder near you for all your extension buildering work?
JMB Design & Build provides a local, trusted extension b...
From £42,400
Potters Bar, EN6
JMB Design & Build is a full service building construction company dedicated to building and improving residential and commercial structures accord...
From £40,330
Need to find an Extension Builder near you for all your extension buildering work?
TMP build solutions ltd provides a local, trusted extens...
From £41,500
Hertfordshire, EN6
TMP Build Solutions is a reputable building company that specialises in loft conversions and extensions. The team has a diverse range of trade skil...
From £40,420
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Comparing extension builders estimates for Side return extension gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for a side return extention by posting your job to extension builders in EN6.
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 - £17,618

Two storey extension - £88,178

Build a timber frame extension - £26,118

Build a swimming pool - £81,118

Single storey extension - £57,368

Side return extension - £42,832

Install an RSJ - £2,318

Outbuilding - £10,118

Build a Mansard loft conversion - £52,118

Loft conversion - £34,860

Build a kitchen extension - £42,118

Hip to gable loft conversion - £42,118

Granny annexe - £87,118

Garden office - £10,118

Convert a Garage - £16,118

Garage - £18,618

Build a flat roof extension - £22,118

Build a dormer loft conversion - £42,118

Concrete foundations - £6,368

Convert a bungalow loft - £29,118

Convert a basement - £38,832