Family-run heating engineers · Worthing & West Sussex
A family firm your neighbours already trust with their heating.
Lock & Lindfield is a family-run heating company led by Mark Lindfield, installing, repairing and servicing boilers across Worthing, Chichester and West Sussex. We're Gas Safe registered, accredited by Worcester Bosch and approved by Vaillant — and our Google rating is a perfect five stars.
Lock & Lindfield's own work
Family-run, and it shows
We're a family business, not a national franchise or a call-centre. When you book Lock & Lindfield, the people who come out are the people named in our reviews — Mark, Graeme, Ryan and the team — and the standard is the same on every job. Customers describe us as "always smiling" and "friendly, knowledgeable and highly professional throughout."
Accredited to fit the best
As a Gas Safe registered firm (No. 520049) that's Worcester Bosch accredited and Vaillant approved, we install A-rated boilers from the brands homeowners trust — and register the longer manufacturer warranties, up to 12 years, that come with them. We're also certified Which? Trusted Traders.
Rated five stars, one home at a time
Our perfect five-star Google rating is built on real reviews naming real engineers. The words that recur are the ones that matter when you're trusting someone with your home: honest advice, no pressure, a clean and tidy job, and a house "left cleaner than when they started."
The team
Mark Lindfield
Owner · Gas Safe engineer
Mark leads Lock & Lindfield and is on almost every job in our reviews — running the survey, giving the honest advice customers describe as coming with “no pressure,” and carrying out the work. He's the name that recurs in review after review, alongside a perfect five-star rating.
Graeme, Ryan & the team
Gas Safe engineers
Our reviews name the engineers who do the work — Graeme, Ryan and the wider team — because they're real people, not a call-centre. Customers call them “friendly, knowledgeable and highly professional throughout,” and “always smiling despite the challenge.” We're also hiring — get in touch if you're a Gas Engineer.
Accredited & certified
Gas Safe Registered
Registration No. 520049 — every engineer on the van is on the register.
Worcester Bosch Accredited Installer
Accredited to fit Worcester Bosch boilers with extended manufacturer warranties.
Vaillant Approved Installer
Approved to install Vaillant boilers and register their longer guarantees.
Which? Trusted Trader
Certified under the Which? Trusted Traders scheme.
We install A-rated boilers from Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and Viessmann — and finance is available through Phoenix Financial Consultants Ltd (we are an FCA Introducer Appointed Representative, FRN 1015770).
What we stand by
The things our reviews keep saying.
Honest advice, no pressure
"From initial visit to completion of the works Mark was friendly and able to answer any question with patience and no pressure" — Suzanne, Google. We advise on what your home actually needs.
Your home, treated like ours
"They treated our home like it was their own, tidying up and leaving it exactly how they found it" — Karen, Google. "Left the house cleaner than when they started" — Emily, Google.
Quick, efficient, organised
"They made it seem effortless… quick, efficient and organised!" — Emily, Google. "They arrived promptly and got on with the job" — Karen, Google. That's how a job runs with us.
One of our favourites
“Graeme and Mark carried out the work, and despite the job involving quite a bit of disruption, they made the whole process easy and stress-free. They were friendly, knowledgeable, and highly professional throughout. They also took great care in my flat and left everything in great condition after giving the place a thorough tidy at the end of the job.”
★★★★★ — Nick Rhatigan, via Google