Add an outbuilding to your property in Seven Kings from £9,416

Outbuildings are the perfect way to add extra space to your property when you need a bit of quiet from the main house. Whether it's for a garden office, gym or workshop, an outbuilding can add value to your home and increase your quality of life. To see prices and availability for your job click green button.

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From £10,120

Rates verified Oct 26
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SDS Constructions

Sean Smithers

Our building services company SDS Constructions has been established for many years and have been providing customers in Dagenham and the surroundi...

From £9,880

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Can design and Construction

Erald Kanani

Member since August 2025

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

From £10,240

Last active Nov 26
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PHOENIX DEVELOPMNTS LONDON LTD

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

From £10,712

Last active Nov 26
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Render

Experienced extension builder ready to quote for your work. Render is the best extension builder in Seven Kings. No obligation free quotes and many...

From £10,328

Last active Nov 26
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Tony Rutter

Need an Extension Builder in Seven Kings? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for many...

From £10,400

Last active Nov 26
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Decorating Building Service

Decorating Building Service are here to help customers who need an Extension Builder in Seven Kings. We offer a competitive rate to complete all yo...

From £10,272

Last active Nov 26
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Kunshi Services UK Ltd

Kunshi Services UK Ltd is a trusted extension builder serving customers in Seven Kings and the surrounding area. Contact us to today to get a compe...

From £10,176

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Fedora and sons Ltd

MIHAI Martolea

Member since September 2026

Fedora and sons Ltd is a trusted extension builder serving customers in Seven Kings and the surrounding area. Contact us to today to get a competit...

From £9,416

Last active Oct 26
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RTC Plumbers

Shaik Jamal

Welcome to RTC Plumbers! With over 15 years of experience, we offer a range of plumbing services from simple repairs to complex installations, each...

From £10,256

Last active Oct 26
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ESK Builders

Need to find an Extension Builder near you for all your extension buildering work?

ESK Builders provides a local, trusted extension builder...

Outbuilding cost in Seven Kings

Estimates for outbuilding near Seven Kings

Outbuilding costs in Seven Kings range from the cheapest of £9,416 (RTC Plumbers based in RM6) to the dearest of £10,712 (Render based in IG1), 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 Seven Kings by posting a job with HaMuch and we will send it to extension builders.


Estimates for common extension builder jobs in Seven Kings;

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.

More extensions & conversions cost guides...