WD18 two storey extensions from £88,036

A two storey extension is a great way to add extra space to your home, adding value to your property. But how much does it cost to build a double storey extension in WD18?

Two storey extension cost in WD18 - Sort by rates or availability

1 review

Torrington

From £88,288

(last active 02/10/26)

NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...

"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO

SH Enterprise

From £88,036

(last active 02/10/26)

Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...

T M Builder

From £88,468

(last active 02/10/26)

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Samuele Paolini

From £88,588

(last active 01/10/26)

Need an Extension Builder in WD18? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...

ABC Associates STRUCTURES 4 U

From £88,420

Member since August 2026

Relax... you have found a reliable extension builder in WD18. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in WD18 who co...

VA Structures

From £88,288

(last active 01/10/26)

Need an Extension Builder in WD18? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs for many year...

DC Build & Pave

From £88,420

(last active 01/10/26)

Trusted and professional extension builder in WD18. Experienced in all extension buildering work and keeping within budget and on quote. DC Build &...

Ali & Sons Builders

From £88,228

(last active 01/10/26)

I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...

The Diamond Property Service Ltd

From £88,456

(last active 01/10/26)

Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...

LALI BUILDERS

From £88,636

(last active 30/09/26)

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Cost of a two storey extension in WD18

Estimates for two storey extension near WD18

Costs range from £88,036 (SH Enterprise based in EC1V) to £88,636 (LALI BUILDERS based in NW10), but these are just estimates. The best way to compare costs is to get real quotes from real builders.

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"Two storey extension" - WATFORD, job posted 01/01/70


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Estimates for common extension builder jobs in WD18;

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.

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