Start a cylinder head reconditioning service
Specialise in heads only: skim, pressure test, recut seats and refit valves for local garages.
- £6k-30k
- Part-time
- Own premises
Estimates for a small start in the UK, not guarantees.
Official data
3,013 UK companies in this field, 11% registered in the last 2 years
SIC 25620 “Machining”. Source: Companies House, November 2026.
What it is
A focused service that reconditions cylinder heads: cleaning, crack and pressure testing, skimming, valve seat cutting and valve grinding. You skip the bigger block machining kit, so setup is smaller.
Your first three steps
- Cost a head surfacing machine, valve seat cutter, pressure test rig and cleaning tank, new and second-hand
- Ask several local garages what they pay and how long they wait for head work now
- Rent a small unit or share workshop space and agree a trial with one or two garages
Who pays
Independent garages, mobile mechanics, car restorers and motorists with a head gasket or overheating failure.
How it makes money
Fixed price per head, with extra charges for new valves, guides or repairs. Garages tend to send regular batches, and quick turnaround helps you win repeat work.
Skills that help
- Mechanical or engineering background
- Careful, accurate machine work
- Reliable turnaround and communication
Watch out for
- Public liability and cover for faulty workmanship, since a failed head can mean an expensive engine repair
- Check with the council and landlord that your unit's use allows machining and any noise it makes
- Chemical cleaning agents and waste coolant, check COSHH and waste disposal requirements
- Dependence on a few garage customers, so aim to spread your trade
Deep research report · UK
Everything you need to start: cylinder head reconditioning service
Researched with live web search for United Kingdom: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.
- Startup costs with real prices
- Licences, registration and rules
- Pricing: what others charge
- Break-even example
- Finding your first customers
- 30-day launch plan
- Risks and how to reduce them
Questions people ask
How much does it cost to start a cylinder head reconditioning service?
Startup costs are typically around £6,000 to £30,000, depending on the machines and equipment you buy and the unit you rent. These are estimates, and focusing on heads only means a smaller setup than full block machining.
How much can a cylinder head specialist earn?
Monthly revenue is typically around £1,500 to £7,000, depending on how many heads you recondition, your pricing and how many garages and motorists you win. These are estimates, and relying on a few garage customers can make income uneven.
What should I check before starting a cylinder head business?
Check public liability and cover for faulty workmanship, since a failed head can mean an expensive engine repair. Also check with the council and landlord that your unit allows machining and noise, and review COSHH and waste coolant disposal requirements.
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