Gas Safe heating engineers · Worthing · Chichester · West Sussex
New boilers and heating, fitted right — by a family firm you can trust.
Lock & Lindfield is a family-run, Gas Safe registered heating firm led by Mark Lindfield, installing, repairing and servicing boilers across Worthing, Chichester and West Sussex. New boilers from £2,280, with a free power flush, magnetic filter and smart thermostat included.
Rated 5 out of 5 on Google
"Simply amazing from start to finish… left the house cleaner than when they started." — Emily Jane, Google review
Gas Safe
registered · No. 520049
5.0 ★
perfect Google rating
Worcester & Vaillant
accredited installer
Up to 12 yrs
manufacturer warranty
Family-run heating engineers · Gas Safe registered
One family firm for your boiler — from the quote to the last tidy-up.
Lock & Lindfield is a family-run heating company led by Mark Lindfield, installing and looking after boilers and central heating across Worthing, Chichester, Brighton and the towns around them. As a Gas Safe registered, Worcester Bosch accredited and Vaillant approved installer, we fit A-rated boilers from the brands homeowners trust — and register the longer warranties that come with them.
Our reviews say the same things again and again: Mark, Graeme, Ryan and the team are friendly and professional, the advice is honest with no pressure, and they treat your home like their own — tidying up and leaving it cleaner than they found it. That's why our Google rating is a perfect five stars.
Our best-known work
A new boiler, fitted complete — from £2,280.
As a Worcester Bosch accredited and Vaillant approved installer, we fit A-rated combi, system and regular boilers with the longer warranties registered for you. Every installation includes a free power flush, magnetic filter and smart thermostat — and up to a 12-year manufacturer warranty.
About new boilers
Our own work — from Lock & Lindfield's Google profile
What we do
Boilers and heating, looked after start to finish.
From new installations to repairs, servicing and cover — here are the services homeowners ask for most.
Accredited & certified
The badges behind the work.
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.
Recent work
Real installs, photographed on site.
In their words
“Mark, Graeme & Ryan simply amazing from start to finish! Replacing our very old back boiler system, and radiators, they made it seem effortless and left the house cleaner than when they started! Couldn't recommend more, always smiling despite the challenge they had with our property, quick, efficient and organised!”
★★★★★ — Emily Jane, via Google
★★★★★
“I am really happy with the work carried out by Mark & Graeme at my flat in Lancing. From initial visit to completion of the works Mark was friendly and able to answer any question with patience and no pressure. They took away all of the old equipment, including an already broken pump, and left my flat in an excellent condition. I could not recommend them more.”
Suzanne Bryant · 2 weeks ago · via Google
★★★★★
“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 · 4 months ago · via Google
★★★★★
“We had a new boiler fitted today. Graeme, Mark and Ryan were very professional and offered great advice. They arrived promptly and got on with the job. They treated our home like it was their own, tidying up and leaving it exactly how they found it. Highly recommended”
Karen Flint · 7 months ago · via Google
★★★★★
“I am very happy and impressed with the service provided, New boiler fitted and pipework done. Old boiler removed. All for a reasonable price. Graham, Ryan and Mark were knowledgeable and friendly. They did a great job and then tidied up after themselves. Would definitely recommend”
Dave Rumble · 7 months ago · via Google
How we work
From free survey to warranty registered.
01
Free survey and honest advice
We come out, look at your system and talk through the options — combi, system or regular boiler, the right size for your home, and which A-rated brand suits you. As reviewers put it, we "offer great advice" with "no pressure."
02
A clear, fixed quote
You get a clear written quote covering the boiler, the power flush, magnetic filter, controls and all pipework — new boilers from £2,280, with finance available. No surprises added later.
03
Clean, Gas Safe installation
Our Gas Safe engineers carry out the work promptly and neatly — often in a day. "They treated our home like it was their own, tidying up and leaving it exactly how they found it," as one review describes.
04
Warranty registered, and we're still here
We register your manufacturer warranty (up to 12 years), leave you a free smart thermostat, and back our own work with a 5-year workmanship guarantee. Annual servicing keeps it all valid.
Where we work
Based in Worthing, covering West Sussex and beyond.
We cover Worthing, Chichester, Brighton and the towns across West Sussex — with 24-hour emergency boiler installation available.
Areas we cover →Thinking about a new boiler or need a repair?
Call the team for a free survey and a clear quote — no charge, no pressure.
Mon – Fri · 7am – 7pm · Sat · 7am – 12pm · Sunday closed · 24-hour emergency boiler installation available