Plumbing · heating · gas · Marlow
The Marlow firm people ask for by name.
Jericos is a small, family-run plumbing and heating business based in Marlow. Boilers, central heating, hot water cylinders, controls, heat pumps and everyday plumbing across Buckinghamshire, Berkshire and South Oxfordshire — and it's Jerrard's name in the reviews because Jerrard is usually the one who turns up.

4.8 ★
rated on Google — and the reviews name Jerrard, not a call centre
Family run
a small Marlow firm, in their own words: personalised service, not a franchise
Gas Safe
gas work carried out by a Gas Safe registered engineer — ask to see the card
3 counties
Buckinghamshire, Berkshire and South Oxfordshire, from a Marlow base
One firm · one number · the same two faces
Heating and plumbing from people who answer their own phone.
Jericos is a small, family-run plumbing and heating firm based in Marlow — in their own words, "a trusted and reputable small company based in Marlow specialising in plumbing and heating services". That size is the whole point: the person you speak to is the person who turns up, and the person who comes back if something isn't right.
Read the reviews and you'll see it. Jerrard gets named again and again, usually alongside Boris — "polite, professional and hard working chaps who offer good customer service". Nobody writes that about a booking system. There's no sales visit and no scripted quote: we look at the job, tell you what it needs, and give you a free, no-obligation price before anyone lifts a floorboard.
What we do
Boilers, heating, hot water — and everything plumbed in between.
Gas boilers
Combi, system and conventional boilers installed, serviced and repaired — by a Gas Safe registered engineer.
Electric boilers
Installation and servicing for homes with no gas supply — flats, annexes, outbuildings and off-grid properties.
Central heating
Full systems, pipework alterations, radiators and the balancing that makes a tired system work properly again.
Heating controls
Smart and zoned controls — Honeywell Evohome, Nest and vSmart — installed and, more importantly, set up properly.
Air source heat pumps
Designed for the house, not the brochure — lower running carbon, and an honest answer about whether yours suits one.
Solar thermal
Roof-mounted collectors that take a large slice out of the year's hot water bill — installed, repaired and serviced.
Why people round here ring Jericos
Small firm, registered company, and the same face at the door.
Anyone can call themselves a heating engineer. Here is exactly what stands behind Jericos, and why each of these things matters when it's your house and your money.
What stands behind the work
Gas Safe registered engineer on every gas job
By law, only a Gas Safe registered engineer may work on your boiler, gas appliances or flues. Our gas work is carried out to that standard, and every registered engineer carries a Gas Safe ID card — please do ask to see it when we arrive, and check the back, which lists exactly what that engineer is qualified to work on.
A registered limited company
Jericos Heating Ltd is registered in England and Wales, company number 14093611. You can look the company up on the Companies House register in about ten seconds — a lot of heating "companies" can't be looked up at all.
Manufacturer-trained on the kit we fit
We work day in, day out with the makes you'll find on Buckinghamshire walls — Ideal, Worcester Bosch, Vaillant, Intergas and Viessmann — and with Honeywell and Danfoss controls, including Evohome, Nest and vSmart. Training and familiarity, honestly described: we'll tell you which makes we'd put in your house and why.
The way we work
One firm for the boiler, the cylinder and the bathroom
Gas, heating, renewables and domestic plumbing under one roof — which matters more than it sounds. A new bathroom usually means moving pipework and asking more of the hot water; a heat pump changes what the radiators and cylinder need to do. You're not left co-ordinating trades who blame each other.
A free, no-obligation price for your job
There's no price list on this site, because no two houses round here plumb the same way. We look at the job, then quote for that job — and if we find something unexpected, you hear about it before we carry on, not afterwards.
Tidy, explained and tested before we go
Heating work is dusty, wet work. Floors get covered, old kit and packaging leave with us, and the system gets tested and shown working — controls included — before we pack up. It's the bare minimum, and it's still the thing people write reviews about.
In their words
“Came out promptly, fixed the problem, no fuss, no bother.”
★★★★★ — Ian Benfell, June 2026, via Google
“Friendly and efficient. First class service. Can recommend.”
“Fantastic service, very professional and knowledgeable. I would not hesitate to highly recommend this gentleman. His installation was perfect and he left with no mess at all very quick and very efficient.”
“I heartily recommend Jericos for all your heating and plumbing needs. Prompt, professional and friendly service always. Today we also saw some magic and our radiator is working again for the first time in years!”
“Would highly recommend Jerico Plumbing. Both Jerry and Boris are polite, professional and hard working chaps who offer good customer service. They did a great job on fitting our new bathroom with loft fed Aqualisa shower, offering clear communication throughout.”
Recent jobs
The job, and what the customer said.

A new bathroom, and a loft-fed shower that actually performs
The job — A full bathroom, fed from a loft tank rather than the mains — the arrangement that most often produces a disappointing shower if the plumbing behind it isn't thought through.
What we did — New suite and pipework throughout, with an Aqualisa shower chosen and installed to suit a loft-fed supply, a towel rail run off the heating circuit, and the head height and gradient sorted before the tiling started. Clear communication all the way through — the customer's words, not ours.
“Both Jerry and Boris are polite, professional and hard working chaps who offer good customer service. They did a great job on fitting our new bathroom with loft fed Aqualisa shower, offering clear communication throughout.”
★★★★★ — Marie Lawson Fitness, via Google

A radiator working again for the first time in years
The job — A heating system that had quietly stopped doing its whole job — one radiator cold for years, and nobody had got to the bottom of why.
What we did — Appliance and system checked properly, combustion measured with the flue gas analyser rather than guessed at, the circuit traced and the flow restored, then the system rebalanced so the fix stayed fixed.
“Prompt, professional and friendly service always. Today we also saw some magic and our radiator is working again for the first time in years!”
★★★★★ — Phil Irving, via Google
How we work
Straightforward, from first call to final check.
01
Tell us what's going on
Ring 01628 901902, send a WhatsApp or email help@jericos.co.uk with a rough description — no heat, no hot water, a dripping tap, a cylinder that never recovers, a bathroom you'd like re-plumbed, a heat pump you're weighing up. A photo of the boiler's make, model and any fault code speeds things up enormously.
02
We look at it properly, then quote it
Repairs are often solved on the first visit. For a new boiler, a cylinder, a set of controls or a first fix we come and take a proper look — pipework, flue route, mains pressure, where the gas run goes — and give you a free, no-obligation price for the job before anything starts.
03
Fitted, tested and explained
Gas work is carried out by a Gas Safe registered engineer, the system is tested, and the controls are handed over in plain English rather than as a booklet. Old kit and rubbish go with us. If anything isn't right afterwards, you ring the same number and get the same people.
Where we work
Marlow first, then Bucks, Berks and South Oxfordshire.
Based in Marlow, covering Buckinghamshire, Berkshire and South Oxfordshire — a tight patch on purpose, so we can get to a breakdown quickly and come back if something needs a second look.
- Marlow
- Bourne End
- High Wycombe
- Beaconsfield
- Maidenhead
- Windsor
- Henley-on-Thames
- Amersham
- Slough
- Wallingford
New boiler, dead radiator, or hot water that never quite recovers?
Ring the office, send a WhatsApp with a photo, or email — quotations are free and there's no obligation.