Loft conversions and timber framing, built properly.
We turn roof spaces into rooms, build timber frames on site and take on full renovations. Bigger projects are what we do, from the first joist to the last door.
Structural carpentry, done properly
We take on the bigger jobs: loft conversions, timber frame buildings and roofs, full renovations and the carpentry on new build homes.
Loft Conversions
New floors, stairs, stud walls, insulation, roof windows and dormers, taken through to doors, skirting and balustrades.
Timber Frame & Roof Framing
Timber frame houses, extensions and offices stick built on site, plus trussed and attic roofs.
Renovations & Refurbishments
Structural alterations, new layouts, plastering, doors, skirting and kitchens, taken to the decorating stage.
New Build Carpentry
Roof, soffits and fascias, cladding and complete first and second fix for developers and self-builders.
Garage Conversions & Outbuildings
Garage conversions clad and finished, offices built inside existing buildings, and timber frame structures built on site.
A carpentry company for the bigger jobs
MSB Carpentry & Construction is a carpentry and construction company based in St Columb and covering Cornwall. We take on full property renovations and refurbishments through to new build developments, and we look after every stage of the work.
Most of what we do is structural: loft conversions, timber frame houses and extensions built on site, roofs, and the complete carpentry on new homes for a local developer. If you have a new build, a renovation or a loft you want turned into a proper room, that is the work we are set up for.
- Loft conversions
- Timber frame houses and extensions
- Roof framing, soffits and fascias
- Full renovations and refurbishments
- First and second fix on new builds
Jobs across Cornwall
How a project runs
Site visit
We come out, look at the roof space or the building and talk through what you want.
Price
A clear price for the whole job, based on your drawings where you have them.
Structure
Steels, joists, frames and stairs first, built straight so everything after sits right.
Finish
Boarding, plastering, doors and skirting, handed over ready for decorating.
Things people ask
What kind of work do you take on?
Larger projects: loft conversions, timber frame builds and roofs, full renovations and the carpentry on new builds. We are not set up for small repairs or odd jobs, and a local handyman will usually be a better fit for those.
Is my loft suitable for a conversion?
Most are. The main thing is head height: as a rough guide you want around 2.2 metres from the top of the ceiling joists to the underside of the ridge. We also look at the roof structure, where the stairs can go and how the new floor will be supported.
Do I need planning permission for a loft conversion?
Often not. Many loft conversions fall under permitted development, but it depends on the house, the area and the size of any dormer, so it should be checked first. Building Regulations approval is always needed.
What does a loft conversion involve?
A new structural floor, sometimes with steel beams, a staircase, insulation, stud walls, roof windows or a dormer, then boarding, plastering, doors, skirting and a balustrade. We take it through to ready for decorating.
What is a stick-built timber frame?
The frame is cut and built on site rather than delivered as factory panels. It suits one-off houses, extensions and awkward plots, and it lets changes be made as the build goes on.
Do you work for developers?
Yes. We have carried out the complete carpentry on new homes for a local developer, including the roof, soffits and fascias, cladding and second fix.
Can a trussed roof be converted?
Yes. The webs that cross the loft have to be replaced with new structure, usually steel beams and new floor joists, so it takes more design work than an older rafter-and-purlin roof, but it is done all the time.
Where do you work?
We are based in St Columb and cover Cornwall.
How do I get a price?
Call, WhatsApp or send the form with what you have in mind. Drawings help if you have them. We will come out and look at the job before pricing it.
Covering Cornwall from St Columb
Thinking about a loft conversion?
Start with these. Plain answers, no sales pitch.
Loft conversions: a plain guide
What makes a loft suitable, the main types of conversion, and what has to happen to turn a roof space into a proper room.
Do you need planning permission for a loft conversion?
Often you do not. Here are the limits that decide it, and why parts of Cornwall are different.
Can a trussed roof be converted?
Yes. It takes more structure than an older roof, but it is done all the time.
Got a loft, a build or a renovation in mind?
Tell us about the project. Drawings and photos help. We will come out, look at it properly and give you a price.