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Frequently Asked Questions

Your Gas & Heating Questions Answered

Straight answers to the most common questions about boilers, gas safety, plumbing and heating from Andy Lander, Gas Safe registered engineer.

Boiler Questions

How often should I service my boiler?

Your boiler should be serviced annually by a Gas Safe registered engineer. This keeps it running safely and efficiently, maintains your manufacturer warranty, and is a legal requirement for landlords.

How do I know if my boiler needs replacing?

Signs include: it is over 15 years old, it breaks down frequently, your energy bills have increased significantly, it takes a long time to heat up, or it is making unusual noises. Andy can assess your boiler and give you an honest recommendation — he will never push you toward a replacement if a repair is the right answer.

What boiler brands do you install and service?

Andy is a Worcester Bosch Accredited Installer, Vaillant Advance Approved and ATAG Approved Partner. He also services and installs Baxi, Potterton, Ideal, Viessmann and all other major makes. As an ex Worcester Bosch and British Gas engineer, no boiler is too complex.

What warranty do I get on a new boiler?

As a Worcester Bosch Accredited Installer, Andy can offer extended warranties of up to 12 years on qualifying new Worcester Bosch installations. Andy will confirm the warranty available for any boiler he recommends.

How much does a new boiler cost?

The cost depends on the make, model, and complexity of the installation. Andy provides free, no-obligation quotes with fixed prices — what you are quoted is what you pay. Use the Free Boiler Quote form or call 020 3355 0731.

Do you offer finance for new boilers?

Yes — finance options are available through our partner TradeHelp, including 0% interest options. Ask Andy for details when you receive your quote.

Gas Safety Questions

What is a CP12 gas safety certificate?

A CP12 is a Landlord Gas Safety Record issued after an annual gas safety inspection. Landlords are legally required to have one carried out every 12 months by a Gas Safe registered engineer and to provide a copy to tenants within 28 days.

What does Gas Safe registered mean?

Gas Safe registered means an engineer is legally qualified and certified to work on gas appliances in the UK. It is illegal for an unregistered engineer to carry out gas work. You can verify Andy’s registration on the Gas Safe Register website — his number is 199048.

What is carbon monoxide and why is it dangerous?

Carbon monoxide (CO) is a colourless, odourless gas produced by incomplete combustion. It is potentially fatal and undetectable without a CO alarm. Andy checks for CO risk as part of every gas safety inspection and boiler service. Every home with gas appliances should have a working CO alarm.

Callouts & Pricing

How quickly can Andy come out for an emergency?

Andy offers same-day emergency callouts across Surrey and South West London. For urgent issues, call 020 3355 0731 and Andy will do his best to attend the same day.

How does pricing work?

Emergency callouts are charged at an hourly rate with a minimum of 1 hour, then per half hour. For installation and quoted repair work, Andy provides a fixed price — what you are quoted is what you pay.

What payment methods do you accept?

Andy accepts credit cards, debit cards, bank transfer and cash. Finance options are also available through TradeHelp for larger installations.

Is your work guaranteed?

Yes — all installations and repairs come with a full workmanship guarantee. As a qualified gas trainer, mentor and assessor, Andy holds every job to the highest professional standard.

What areas do you cover?

A.M. Lander covers Surbiton, Kingston, Wimbledon, Esher, Cobham, Chessington, Worcester Park, New Malden, Molesey, Teddington, Richmond, Tolworth and throughout Surrey and South West London.

Still have a question?

Call Andy direct for a straight answer — no sales pitch, no jargon.