August 27, 2026
The Difference Between a Carpenter and a General Builder
You call a builder about a sagging floor, and halfway through the visit he tells you it is a joist problem and you will want a carpenter in for that part. It is a common moment on a lot of projects, and it catches people out because the two trades sound interchangeable until you need one of them.
What does a carpenter do?
A carpenter works with timber, specifically. On a house that covers structural roof work, floor joists, staircases, door linings, skirting, architrave and any bespoke joinery such as fitted wardrobes or shelving. Carpentry splits into two stages on most jobs.
First fix: structural and rough timber work done before plastering, including roof timbers, floor joists, stud walls and door linings.
Second fix: the finishing work done after plastering and decoration, including skirting, architrave, doors, staircases and any fitted joinery.
Our own carpentry and joinery team covers both stages in house, which matters more than it sounds. A first fix cut slightly wrong shows up as a gap or a squeak once the second fix trim goes over it, so having the same standard applied at both stages avoids problems that only become visible weeks later.
What does a general builder do?
A general builder coordinates a project rather than specialising in one material. On a renovation or an extension that typically means managing groundworks, brickwork, roofing, plumbing, electrics and carpentry, and sequencing them so each trade arrives once the site is ready for them.
This is closer to what our Design and Build service covers. Rather than a single trade, it is the whole project, design through to handover, run under one contract with one point of accountability.
Is there a legal definition of “builder” in the UK?
No. There is no formal qualification a person needs before calling themselves a builder, which the Federation of Master Builders points out directly in its own guidance on choosing a contractor. Anyone can use the title, regardless of training or experience.
Carpentry works differently in practice, even without a single licensing body. A first fix cut wrong on a roof or a staircase is structural, and it is hard to hide bad workmanship in joinery the way it can sometimes be papered over elsewhere. That is part of why we keep carpenters on our own payroll rather than bringing them in per job. It gives us direct control over the standard rather than hoping a subcontractor’s work matches ours.
When do you need a carpenter specifically?
A few situations point specifically at carpentry rather than general building work:
- Roof timbers, trusses or a ridge beam need replacing or altering
- Floor joists are sagging, bouncy or need strengthening
- A staircase needs building, repairing or replacing
- Bespoke joinery is wanted, fitted wardrobes, shelving or a specific finish
- Door linings, skirting or architrave need matching to an older property
When do you need a general contractor instead?
If the project touches several trades, brickwork, roofing, plumbing and carpentry together, coordinating them yourself is a real job on its own. That is where a general contractor earns their fee, not by doing every trade personally but by sequencing them so nobody is standing around waiting, and by carrying responsibility if two trades disagree about whose work caused a defect.
Our brickwork and masonry team works alongside carpentry on most renovation and extension projects, which is a fair example of what coordination looks like day to day: brick openings need to be right before a carpenter can fit a door lining, and a roof structure needs to be sound before a roofer starts covering it.
Does it matter if the trades are subcontracted?
It can. A subcontracted trade is booked for that job specifically and may never work with the same team again, which makes consistency harder to guarantee. Trades on a company’s own payroll build to the same standard repeatedly, because their name is on every job whether the client ever finds out who did which part or not.
This is also relevant if you are managing a project yourself rather than appointing a single contractor.
What to do next
- Work out whether your job is one trade or several, since that decides who you need first
- Ask any tradesperson whether they employ their own team or subcontract, particularly for structural carpentry
- Check FMB membership if you are appointing a general contractor
- Get a written scope before comparing quotes from different trades
If your project spans more than one trade, from a full home renovation through to roof carpentry, we run the whole thing under one contract with carpenters, bricklayers and site teams on our own payroll.
FAQs
Get in touch about your project and we will confirm which trades it needs.