Loft Conversions
in Somerset
A loft conversion is one of the most effective ways to add an extra bedroom, a quiet home office, or a luxury master suite without sacrificing an inch of your garden. We specialise in high-quality loft conversions that transform dusty storage areas into master suites, home offices, or extra family bedrooms.
Our Loft Conversion Services
Every roofline is different, and we provide a range of structural solutions designed to unlock
the most space possible from your specific property. Whether you have a modern trussed
roof or a traditional timber frame, we offer loft conversions in Somerset to suit all homes and budgets.

Velux & Roof Light Conversions
Ideal for those looking for a no-fuss transformation that maintains the original roofline while flooding the new space with natural light.

Dormer
Conversions
The most popular choice for creating maximum head height and floor space. We specialise in full-width dormers that can accommodate multiple rooms and a full-size bathroom.

Hip-to-Gable Conversions
Perfect for semi-detached or end-of-terrace homes, this conversion extends the sloping “hip” side of your roof into a vertical wall, significantly increasing usable space.

Mansard Conversions
A more aesthetic architectural choice that involves changing the entire slop of the roof, often used on period or terraced properties to provide the most significant space increase possible.
Frequently Asked Questions
Generally, you need a minimum head height of 2.2 meters at the highest point of your current loft. If it’s a little lower, don’t worry – we can discuss options like lowering the ceilings on the floor below or using thinner high-performance insulation.
While every project depends on the type of conversion and the size of the roof, most loft projects are completed within 6 to 10 weeks.
A simple Velux conversion is usually on the shorter end of that scale, while a large Hip-to-Gable or Mansard conversion requires more structural work and time to finish.
We always provide a clear schedule before we start so you can plan around the build.
If you live in a semi-detached or terraced house and the conversion involves work on a wall shared with your neighbour (such as inserting steel beams), you will likely need a Party Wall Agreement.
We can advise you on the steps you need to take and can recommend local surveyors to help make the process straightforward and neighbourly.
Most roofs can be converted, but the structural requirements vary. Traditional “rafter and purlin” roofs offer more immediate space, while modern “truss” roofs require more complex steelwork to create an open room.
During our initial site visit, we can assess your head height and floor structure to give you an honest idea of what is possible.
Planning a Larger Home Transformation?
While a loft conversion is a fantastic way to add space, we also specialise in comprehensive property updates and full-scale refurbishments across Somerset.
Learn more about House Conversions.
Why Choose Us for Your Loft Conversion?
35+ Years of Structural Expertise
Since 1987, we’ve been navigating the complexities of local roof types in Somerset and across the South West. We ensure that structural reinforcements, floor joists, and bespoke staircases are executed with the highest level of precision.
Consistent, Direct Team
Your loft conversion will be handled by our own directly employed team of builders, carpenters, and specialists. This ensures that the craftsmanship remains consistent and that the people in your home are professionals we know and trust.
Practical, Collaborative Solutions
A loft conversion often requires clever thinking regarding stairs and headroom. We work closely with you to find the most practical layout so it feels like a natural, seamless extension of your original floor plan.

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.

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.

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.”


Ready to Transform Your Loft?
A professional loft conversion in Somerset is the smartest way to gain that extra bedroom or a quiet home office without the upheaval of a move. We re-egineer your roof space to create a seamless extension of your home.