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Heating People

Gas safety certificate when selling a house

There is no general legal requirement to hold a gas safety certificate when you sell a home, but buyers, solicitors and lenders sometimes ask for evidence.

Estate agent beside a For Sale sign outside a London house
A recent gas safety check or service record can help answer buyers’ questions.

What the law requires

Selling a home does not by itself trigger a legal requirement for a gas safety certificate. The annual record is a landlord duty. If the property is currently let, the landlord’s gas safety duties continue until the sale completes.

Why it can still help a sale

  • It shows the gas appliances were checked by a Gas Safe registered engineer
  • It can answer questions from a buyer’s solicitor or surveyor
  • A boiler service record shows the boiler has been maintained
  • It lets you deal with defects before they appear in a survey

A check is a snapshot of the day it was done. Buyers will usually still arrange their own survey.

What to prepare

  • A list of gas appliances: boiler, hob, cooker, any others
  • Boiler make, model and age, and any service history
  • Installation paperwork and warranty, if you have it
  • Access arrangements if the property is empty or tenanted

Options and cost

A gas safety check: £92.50 for up to two appliances, plus £22.50 for each additional appliance. Gas fires are charged separately.

A boiler service from £92.50 gives you a service record as well. Neither includes repairs or parts.

Gas safety certificates · Homebuyer plumbing and heating assessment

Common questions

Should I have a boiler service before selling?

It is not required, but a recent service record is useful evidence the boiler has been looked after.

What if the check finds a defect?

The engineer explains the safety action needed. Repairs are priced separately, and you decide whether to carry them out before the sale.

Sources and further reading

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