Commercial Building Extensions in Somerset

Outgrowing your current premises? A bespoke commercial extension allows you to increase your capacity and modernise your workflow without the need to move. We specialise in commercial property extensions in Somerset and surrounding areas, from industrial and healthcare to office environments.

Our Commercial Extension Services

Building onto an existing commercial structure requires deep engineering knowledge. We manage the
interface between the old and the new, ensuring structural integrity and seamless utility integration.

Industrial & Warehouse Expansions

Lateral commercial building extensions in Somerset to increase storage or production capacity. From portal frame construction and reinforced floor slabs for heavy machinery to high-spec loading bay integration.

Vertical Office Extensions

Adding additional storeys or mezzanine levels to existing office blocks. We handle the structural reinforcement required to support increased floor loads and the extension of core services.

Specialist Healthcare Extensions

Creating new clinical wings, dental suites, or care home modules. We build to CQC standards, focusing on accessibility, hygiene-grade finishes, and complex medical utility integration.

Public Sector & Education Blocks

Delivering additional classroom space or community halls. As a vetted team, we are experienced in working within the strict safety and security protocols of active educational sites.

Speak To Our Team

Frequently Asked Questions

Looking for a Complete Commercial Construction Team?

As well as commercial property extensions across Somerset, we also specialise in complete commercial builds from the ground up.

> Explore Our Commercial Building Services

Why Choose Us for Your Commercial Extension?

Self-Delivery for Total Control

We don’t rely on a chain of subcontractors. We use our own direct team for everything from the initial civil engineering and groundworks to the final master-carpentry finish.

Professional Financial Management

Every commercial extension is overseen by our Quantity Surveyor. We provide detailed, itemised tenders that account for every structural variable. This ensures your board or stakeholders have total clarity on the budget from day one.

Principle Contractor Oversight

A commercial property extension means you’re building while your business is still running. As your Principal Contractor, we manage the entire site logistics, noise control, and health and safety.

Decades of Happy Clients

We’re incredibly proud of the reputation we’ve built over the last 35+ years.
Here’s a glimpse of what our customers have to say about working with our team:

Doing whole house renovation for us after the fire. Really good company, work so far been of really good quality, fantastic communication from Kevin and Neil – always on hand to help, answer phone and emails promptly, hard working and helpful.

Kim, Yeovil

We’ve worked with Building Craftsmen on several projects over the years, and they’ve never let us down. Their attention to detail, communication, and ability to deliver on time is second to none. A dependable contractor who always goes the extra mile.

Commercial Client, Yeovil

BCY and the team made the process seamless from start to finish. We couldn’t be happier with the result, the house is everything we wished for. All suppliers were extremely friendly and tidy throughout the project. We were particularly impressed with the communication and attention to detail.”

Homeowner, Yeovil

Ready to Expand
Your Business?

Building onto an active business site requires precision and coordination. Our directly employed team manages every phase – from initial groundworks to complex utility integration.

Speak To An Expert