# 15.17, Specialising vs staying general: when to pick a lane
Specialising is where the better money and stronger demand often sit. But it's a trap if you pick the wrong thing too early or go so narrow you can't pivot when the market shifts.
1. The rule of thumb
Specialise enough that you're not "just another" tradie, but keep enough general skills that you can still earn if your niche hits a wobble.
2. What the data says: specialists vs generalists
Nobody has a perfect chart, but the pattern is clear when you look at UK earnings by trade.
A Capital on Tap study using UK trade earnings data shows specialist roles at the top of the hourly-rate table and more general or low-barrier trades sitting lower:
| Trade | Typical hourly rate |
|---|---|
| Locksmith | £44.65/hr |
| Heating engineer / gas fitter | £41.00/hr |
| Plumber | £39.25/hr |
| Bathroom fitter | £39.15/hr |
| General builder | £28.60/hr |
| Plasterer | £23.45/hr |
That doesn't mean "plastering is bad", a good plasterer doing specialist work can do very well. But it does show:
- Trades with a clear specialism, higher technical content or more regulation tend to earn more per hour than broader "anything and everything" roles.
- Low-barrier, crowded trades with lots of generalists see more competition and lower average rates.
Put simply: the market pays more for niche skill and risk.
3. When most people actually specialise
There isn't a formal "you specialise at year X," but industry patterns are consistent:
- Most people start broad: labourer, general builder, all-round domestic spark or plumber, multi-trade.
- Over time they gravitate towards the work they're naturally good at, the jobs that make money, and the areas where there's strong demand and less competition.
The typical timeline:
Years 0–3 qualified A bit of everything. Still figuring out what you enjoy, what pays, and what drives you mad.
Years 3–5 Most tradespeople start to specialise here, once they've done enough different work to know what they like and seen which parts of the trade pay and which are a grind.
Years 7–10 Some double-down again. A "spark" becomes mainly EV/solar/heat pumps. A "plumber" becomes boilers and heating rather than bathrooms. A "chippy" becomes the staircase specialist or the heritage joiner.
Most people do a bit of everything for the first few years. Once you've seen a few winters and know what pays and what doesn't, that's when it makes sense to pick a lane.
4. Which trades gain most from specialising
Some trades get a big boost when they go niche. Others don't move the needle as much.
Plumbing and heating
General plumbing has solid earnings anyway, but specialising in heating, boilers, controls, or low-carbon heating tends to push you towards the top end of the pay range.
Electrical
A general domestic spark does well. Adding specialisms like EV charging, solar PV, battery storage, or inspection and testing often increases your day rate and makes you more resilient to slowdowns.
Carpentry / joinery
Standard "chippy" work is fine. Specialisms like high-end interiors, staircases, roofing, or heritage joinery can command better rates and less competition because there are fewer people who can do it well.
General builder → specific niches
Moving from "we'll do anything" to being known for extensions, loft conversions, structural alterations, or passive-house/retrofit work makes it easier to charge properly and fill the diary with the right jobs.
Industry skills plans stress that specialist roles, fire stopping, rainscreen cladding, dry lining, low-carbon installs, are exactly where the skills gaps and higher tender prices are emerging.
The trades that benefit most from specialising are those with technical complexity or regulation, and those linked to long-term trends like net zero, fire safety and retrofit.
5. Risks of over-specialising
Specialising is not a free lunch. There are real traps if you go too narrow or too early.
Tied to one type of work or client
If you become "the person who only does X for Y contractor," you're very exposed if that contractor folds, changes payment terms, or brings the work in-house. Construction is cyclical, if your niche is tied to one funding stream or policy and that dries up, your workload can disappear fast.
Regulation and training treadmill
Higher-spec niches (MCS, PAS, fire roles, asbestos) mean more training, audits and paperwork. If you stop investing in keeping your tickets and knowledge current, you can't trade on that niche any more, and the generic work may have moved on without you.
Less flexibility when the market shifts
General trade skills make it easier to pivot, from new build to maintenance, from domestic to small commercial. Over-specialise too early and you might not have enough breadth to pivot if your niche slows.
Local demand limits
Some specialisms are brilliant in cities and big towns but thin in rural areas. If your patch can't support a narrow niche, you'll end up travelling miles or taking any old work anyway.
CITB and RICS keep warning that the skills gap is structural, not temporary, and that the industry needs people who can upskill and reskill across a career, not just nail one narrow trick.
6. How to pick a lane without boxing yourself in
For someone a few years out of their apprenticeship, here's a sensible approach:
Years 0–3 out of time
- Stay fairly general in your trade.
- Say yes to different types of work (domestic and commercial, maintenance and installs) so you can see what you enjoy and what pays.
- Don't commit to expensive specialist training yet · learn what the market actually wants in your area first.
Years 3–5
- Start nudging towards 1–2 things you like and that the market clearly wants · boilers and heating controls, EV chargers, bathrooms, fire stopping, dry lining, whatever suits your trade.
- Invest in 1–2 extra tickets or quals that support that direction.
- Adjust your marketing to highlight what you're getting known for, without dropping everything else.
Years 5+
- If the niche is working · work is steady and rates are good · lean into it more: branding, website focus, training, networking in that niche.
- Keep a toe in the more general side so you don't lose all flexibility.
- Revisit every couple of years: is this niche still growing, still paying, still interesting? If not, you've got the breadth to shift.
The goal isn't to become so specialised that you can only do one thing. It's to become known for something specific: so the phone rings for the right work at the right price, while keeping enough range that you're never stuck.
What to do next
- Read: 15.16 · The trades nobody talks about: less obvious paths that pay well
- Read: 15.18 · Upskilling after qualifying: what's worth it and what's a waste of money
- Read: 15.13 · Building a reputation from zero
- Read: 14.1 · Day rate vs price work vs quoted: which is best for you?
- Read: 15.6 · The money reality: what you'll actually earn and spend in year one
Sources (UK)
- Capital on Tap (UK trade earnings study) · hourly rates by trade, specialist vs general earnings comparison.
- CITB Construction Skills Network reports · skills shortages by trade, workforce outlook, demand projections.
- Construction Leadership Council Industry Skills Plan · priority competence areas, specialist skills gaps.
- RICS / CITB workforce reports · structural skills gap, upskilling and reskilling requirements.
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