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0800 888 62 88

Loft Conversions &
Timber Frame Extensions

Trusted loft conversion and extension specialists serving the South West.

Accredited, experienced, reputable and unquestionably reliable.
With the highest attention to detail, we work with you from design to completion, transforming your living space.
We are a proud member of the Federation of Master Builders and we have earned the following accreditations:


Contact us for a free, no-obligation quote today.

Stylish Loft Conversions

Loft conversions are a great way to provide a new space for your home. We can provide a design which matches your existing housing aesthetic for affordable prices. The possibilities are endless; whether you need an added bedroom, home office or a TV lounge, we can help. Of all the options open to improving home owners, a loft conversion is by far the quickest, easiest, and least expensive.

Timber Frame Extensions

Timber Frame Extensions provide substantial additional space within your home. Whether you require an extension to increase living space or a rear extension for a quiet escape, our high-quality timber-frame extensions are designed to match the style and build quality of your existing home, maintaining architectural integrity and adding significantly to the value of your property.

What our customers say

Our 5 star reviews show our high customer satisfaction and reputation

Maria Jeanes
We are very impressed with our new loft room which was delivered on budget and exceeded our expectations. The team were professional throughout the project, with special thanks to Tom who was on site daily and kept us updated, also thanks to Mitch for overseeing the project and arranging any necessary changes based on our requirements as the build progressed. We would recommend MCS South West to anyone considering a loft conversion or similar project.
David Hounsome
Mitch and his team did a great job on our loft conversion, the girls love their new bedrooms and bathroom. Of all the firms we had quotes from, Mitch was the only person who questioned some of our initial design aspects and suggested improvements based on his experince of other jobs. The whole team were very friendly, their arrival each day was a highlight for the children and dogs!
James Nicholls
Mitch and his team did a fantastic job on our loft. Really hard working, great attention to detail, easy to work with and very helpful. They came up with some really neat fixes around issues like staircase design, ceiling heights and windows - all of which have worked perfectly. The conversion is exactly as we wanted. Highly recommended.
Timothy White
At the start of 2018 we had our loft converted and kitchen reconfigured by MCS southwest. We looked at several companies based on FMB membership and proximity. Mitch was the most responsive and cheapest quote. Before we committed he arranged for us to see another loft conversion he’d recently completed. Sue from Ashton was extremely complimentary giving positive responses to all our questions. For the entire build Mitch and his team worked hard to get the job done quickly and professionally. All of the trades knew what they were doing, and although we lived on a building site, the team vacuumed daily so that dust and debris were kept to a minimum. When a couple of things didn’t go according to plan (a couple of items for the kitchen didn't arrive on time) Mitch was the calm voice of reason explaining these things happen all the time on building projects. Overall we are really happy with the job MCS southwest have done and would thoroughly recommend them.
Hippolyte Campbell-Jones
We are thrilled with our loft conversion. Mitch and his crew were amazing from the start to the end of the project! They took care of every small detail, turned up on time every day, cleaned-up after themselves, were friendly, highly professional and finished the project on schedule plus on budget. Excellent company and if we have any further building projects then we would use them again!
Jon Roberts
We are absolutely delighted with our kitchen/diner conversion. The team were really friendly, reliable and worked hard, getting the job done well within schedule. They were always willing to discuss and be flexible with changes to ideas as the project progressed. We would thoroughly recommend them

Visit A Past Project

At MCS Southwest, we make sure that our timber-frame extensions are designed to your specifications. With our expert building team and great customer service at hand, we respect the architectural integrity of your home, whilst increasing the value of your property. Visit any previous project and our customers would be happy to showcase our work. You can see how MCS Southwest has helped enhance the property by creating their desired, functional new living space.

Federation of Master Builders

W​e ​are incredibly proud to be a part of The Federation Of Master Builders. The highly-respected, industry-recognised accreditation ​of quality and credibility ​is only awarded to the best professional builders. Our team are thoroughly vetted through inspection processes to meet the rigorous standards of the FMB in work, customer service, technical competence and trading practice.

It's our guarantee to you ​of high standards of professionalism and ​​workmanship​ and demonstrates our pride in our work. ​ If you would like a Master Builder to survey your project, get in touch today.