Car radiator repair and recore workshop

Repair, test and recore car radiators for local garages and drivers from a small workshop unit.

Startup cost£5k to £25k
Monthly revenue£3k to £12k
Time needed30+ h/week
First incomeMonths
  • £5k-25k
  • Part-time
  • Own premises

Estimates for a small start in the UK, not guarantees.

What it is

A small workshop that repairs leaking radiators, fits new cores, pressure tests them and supplies replacements. Work comes in as radiators off the car or as whole vehicles.

Your first three steps

  1. Spend time with an existing radiator specialist or take a course to learn repair and recoring properly
  2. Price a small rented unit and the key kit: pressure test tank, soldering gear, core and tube tools and an extraction system
  3. Visit independent garages and mobile mechanics near you, offer a quick turnaround and set up trade accounts
Who pays

Independent garages, mobile mechanics, classic and van owners, and drivers who want a repair rather than a new part.

How it makes money

A fixed price per repair or recore, plus margin on replacement radiators, flushing and coolant. Regular garage accounts bring steady repeat work.

Skills that help
  • Soldering and metalwork
  • Mechanical knowledge of cooling systems
  • Careful testing and finishing
  • Dealing with trade customers
Watch out for
  • Fumes and hazardous substances such as flux, solder and used coolant: check COSHH risk assessment and ventilation requirements
  • Used coolant is waste, check with the Environment Agency (or your national equivalent) how to store and dispose of it
  • Planning use class, business rates and lease terms for a workshop unit, check with your council
  • Public liability insurance, cover for customers' parts and vehicles in your care, and employer's liability once you hire
  • Many modern plastic and aluminium radiators are replaced rather than repaired, so check which jobs you can realistically take

Deep research report · UK

Everything you need to start: car radiator repair and recore workshop

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
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start a radiator repair workshop?

Startup costs are typically around £5,000 to £25,000, depending on the workshop unit, your equipment and testing gear, and the stock you hold. Treat these as estimates and get quotes for your own setup.

How much can a radiator repair and recore business earn?

Monthly revenue is typically around £3,000 to £12,000, depending on how much trade work you win from garages and how many repairs you can take on. This is revenue, not profit, so costs come out of it.

What rules and safety points should I check for a radiator workshop?

Check your COSHH risk assessment and ventilation for flux, solder and used coolant. Used coolant is waste, so check storage and disposal with the Environment Agency or national equivalent. Also check planning use class, business rates, lease terms and insurance.

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