Blog · 6 August 2026 · 8 min read

How to Start a Chimney Sweep Business in the UK (2026)

Chimney sweeping is one of the few trades you can enter for under £10,000, learn in a matter of weeks, and run profitably from day one — in an industry where the customer base literally renews itself every year. Wood-burning stoves have boomed for a decade, every one of them needs an annual sweep, and in most of the UK there are nowhere near enough sweeps to go round. Here's what it actually takes to start, with 2026 numbers.

1. Get trained — properly

There's no legal licence required to sweep chimneys in the UK. That surprises most people, and it's exactly why training matters: anyone can buy a brush, so the sweeps who get the work are the ones who can prove they know what they're doing. Insurers, letting agents and increasingly homeowners expect a certificate from a recognised sweep — and you can't issue meaningful certificates without recognised training behind them.

The established routes, with current prices:

The Guild of Master Chimney Sweeps — four days of intensive theory and practical training, around £1,320. The best-known name in the trade, and the course leads into Guild membership.
HETAS-approved courses — beginner sweep courses at approved training centres, typically £1,400–£1,500 + VAT, leading to the HETAS Approved Chimney Sweep scheme.
The Institute of Chimney Sweeps (ICS) — around £875.
Independent academies — from roughly £650 for certified courses, for example the Chimney Sweep Academy.

Expect the course to cover flue types and construction, sweeping methods (manual and power sweeping), industry codes of practice, carbon monoxide awareness, and how to inspect and certify what you've swept. Budget for the course, travel and a few days away — and treat it as the single most important purchase of the whole startup.

2. Join an industry body

Membership isn't compulsory either, but it pays for itself quickly:

Credibility — the Guild, HETAS, APICS or ICS logo on your van and website answers the homeowner's first question ("is this person legitimate?") before they ask it.
Directory traffic — the bodies run public "find a sweep" directories that homeowners genuinely use. A listing is a steady source of enquiries and a link to your website.
Insurance and standards — members get access to trade insurance schemes, codes of practice, and certificate templates recognised by insurers.

Pick the body whose training you took, get listed the week you qualify, and keep the listing current.

3. Kit and van

You almost certainly need a van — an estate car works for the first months if it must — plus:

Rods and brushes for manual sweeping, in a range of sizes.
A power sweeping set — rotary rods and heads. Most modern sweeps power sweep as standard, and it handles the heavy soot and creosote jobs that manual brushes can't.
An industrial vacuum with HEPA filtration — the difference between a professional finish and soot on the customer's carpet. Don't economise here.
Sheeting and covers to protect the room, plus PPE: dust masks rated for fine particulates, gloves, knee pads.
A CCTV inspection camera — optional at the start, but it unlocks higher-value inspection work (£50–£100 a time) and turns "your flue looks damaged" into evidence a customer can act on.

Realistic kit budget: £2,000–£5,000 depending on how much you buy new, on top of the van. With training included, most sweeps start the business for £5,000–£10,000 all in.

4. Set up the business legally

Register with HMRC — most sweeps start as sole traders (simplest), some incorporate as a limited company later. Registering for Self Assessment takes minutes online.
Public liability insurance is non-negotiable — you're working inside people's homes with soot, ladders and combustion appliances. £2m cover is the floor; many letting agents insist on £5m before they'll put you on a portfolio.
Know what's coming with Making Tax Digital — quarterly digital reporting is rolling out to sole traders in stages from April 2026. Our plain-English MTD guide for chimney sweeps covers the thresholds and dates.
Keep records from job one — every sweep, every certificate, every payment. It makes tax time painless and, more importantly, it's the foundation of the annual reminder system that will feed you repeat work (see point 7).

5. What to charge in 2026

Industry figures put a standard sweep at £60–£85 across the UK, averaging around £72 — higher in London (~~£82), lower in the East Midlands (~~£60). On top of the standard sweep:

Open fires and inglenooks: add £35–£50 — bigger flues, more mess, more time.
Bird's nest removal: add £100–£200 depending on severity. Unpleasant, and priced accordingly.
Heavy soot or creosote (power sweeping): add £50–£100.
CCTV flue inspection: £50–£100 as an add-on or standalone.

Two pricing mistakes new sweeps make: charging less than the going rate to "win work" (homeowners read cheap as amateur in this trade — the certificate and the professionalism are what they're buying), and not issuing a certificate with every job. The certificate is your product as much as the sweep is: it's what the customer's home insurer wants to see, and it's your route back into that house next year.

6. Plan for the seasons

Sweeping is brutally seasonal. August to December is the rush — everyone wants their chimney done before the first cold snap — and late winter to early summer is quiet. Two consequences for a new business:

Time your launch. Qualifying in spring gives you the quiet months to practise, set up, and market — then the autumn rush arrives just as you're ready for it.
Watch fixed costs. A £40–£100/month software subscription or equipment finance payment feels fine in October and hurts in March. Keep as much of your cost base as possible proportional to the work you're actually doing.

Established sweeps smooth the curve by selling spring sweeps ("beat the autumn rush") — as a new sweep, those quiet-season slots are also where your first hundred jobs and reviews come from.

7. Win your first customers

Your first-year marketing plan fits on a postcard: a complete Google Business Profile, a review asked for on every driveway, listings in the industry directories from point 2, and partnerships with the local trades who meet your customers first — stove retailers, letting agents, fuel suppliers. We've written a full guide: how to get more chimney sweep customers.

The one thing to get right from the start: capture every customer for next year. A chimney needs sweeping annually, so every job you complete is a pre-qualified lead in twelve months — but only if you have their details and a system that reaches out. Sweeps who work this properly build a round that books itself within three or four years.

8. Set up your systems before you're busy

The trap most new sweeps fall into: run the first season on a paper diary and a carbon-copy certificate pad, get slammed in October, and spend the winter evenings typing up paperwork. The businesses that scale are the ones that start with proper systems while things are quiet:

Online booking — homeowners plan chimney maintenance in the evenings; a website that takes bookings and payment 24/7 wins the jobs the phone-only sweep never hears about.
Digital certificates — completed on your phone at the property, photos attached, emailed to the customer before you've left the driveway.
Automatic annual reminders — every certificate schedules next year's prompt, which is how the round starts booking itself.

This is what We Sweep does, and the pricing was designed for exactly the situation a new sweep is in: £0/month, 2% per booking. In the months you have no work, it costs nothing — the software only earns when you do. Apply here — it takes a few minutes.

The short version

Train with a recognised body (£650–£1,500), join it, spend £2,000–£5,000 on kit, insure yourself, register with HMRC, charge the going rate (£60–£85 a sweep plus add-ons), launch in spring, market locally, and put booking–certificates–reminders systems in place before the autumn rush hits. Twelve months in, you'll have a round; three years in, if you've captured every customer for their annual sweep, the round largely refills itself.