Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Cambridge has a housing mix that keeps heating engineers busy in different ways depending on the postcode. The older terraces around Mill Road and Romsey have narrow suspended timber floors and gas meters tucked in odd cupboards, which makes pipework and boiler placement fiddlier than a standard new-build. Out towards the newer estates in Trumpington or Orchard Park, you're more likely dealing with combi boilers on modern manifold systems, sealed unvented cylinders, and warranty paperwork that needs a Gas Safe registered engineer to keep it valid. Then there's the college buildings and period properties near the city centre, where old cast iron radiators and communal heating setups need someone who's actually worked on that kind of system before, not just fitted a standard combi in a semi. Whatever your street looks like, the type of property genuinely changes who you should be calling.
The businesses listed here come from public business listings, and we've ranked them using review rating and review count, with a small lift given to those showing a working website and phone number. We then check each business's homepage to confirm heating engineering is what they actually do day to day, not a sideline listed alongside five other trades, which keeps unrelated businesses off this page. Listings flagged as permanently closed get removed automatically as part of that process. Where you spot a Trust Verified badge, that business has gone further and passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information (our How We Verify page sets out exactly what that covers). For any business without the badge, those checks haven't been done by us, so it's worth doing them yourself before you book anyone in.
Before agreeing to any work, ask to see the engineer's Gas Safe registration card and check the licence number against the register yourself, it takes two minutes online. For boiler installations, confirm whether they'll issue a Building Regulations compliance certificate afterwards, as this matters when you come to sell the property. Get at least two or three quotes for anything beyond a routine service, since prices for jobs like a full boiler swap can vary by several hundred pounds between firms in and around Cambridge. Ask what the call-out charge covers, whether VAT is included in the quote, and how long the parts and labour guarantee actually runs for. A written quote beats a verbal one every time, especially once a job's underway and unexpected pipework issues turn up.
How We Select & Rate The Best Heating Engineers in Cambridge
Rankings are based on review rating and review count pulled from public business listings, with a small lift for businesses that show a working website and phone number. We check each business's homepage to confirm heating engineering work is what they primarily offer, and listings flagged as permanently closed are removed automatically. Businesses showing a Trust Verified badge have additionally passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information; see our How We Verify page for the full list. Other businesses on this page haven't been independently verified by us, and being listed isn't an endorsement. Always do your own checks before hiring.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Residential and commercial properties across Cambridge rely on Moore's Plumbing and Heating for gas engineering, plumbing, and heating work. The business holds a 4.9-star Google rating across 121 reviews, reflecting consistent standards in the CB1 area and beyond. Services cover the range expected of a registered gas engineer, from boiler installation and servicing to general plumbing repairs.
Residential and commercial customers across Cambridge turn to Cambs Heating for gas engineering work, including boiler installation, servicing, and repairs. The company holds a 4.8 rating from 142 Google reviews, reflecting consistent work across the CB1 area and beyond. Gas Safe registered, it operates as a dependable local option for both routine maintenance and urgent call-outs.
Households and commercial premises across Cambridge rely on C. Watson Heating & Cooling for gas engineering work, including boiler installation, servicing, and fault diagnosis. The company holds a 4.8-star Google rating from 36 reviews, reflecting consistent feedback from local clients. CB2 9BX serves as its base for covering the surrounding area.
Rated 5.0 stars by Cambridge-area customers, DSS Heating and Plumbing Ltd has built a consistent record across domestic heating and plumbing work. The company operates from the PE27 4TN area, covering a range of installation and maintenance services. That rating, sustained across multiple reviews, offers a reliable measure of the quality clients can expect.
Residential and commercial properties across Cambridge can call on Cambridge Gas Services Ltd for gas engineering work, including boiler installation and maintenance. The company holds a perfect 5.0 rating from Google reviewers, suggesting consistent reliability across its local customer base. Registered to the CB1 postcode area, it covers central Cambridge and the surrounding neighbourhoods.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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How much does a heating engineer cost in Cambridge?
A standard boiler service usually runs between £70 and £110, while a call-out for a breakdown tends to start around £60 to £90 for the first hour, plus parts. A full combi boiler replacement in a typical Cambridge terrace generally costs £1,800 to £3,500 depending on the make, output size and how much pipework needs altering. Bigger jobs, like a system upgrade with a new unvented cylinder, can push past £4,500. Prices vary a fair bit between firms, so get two or three quotes before committing, especially for installation work.
Do I need a Gas Safe registered engineer for boiler work in Cambridge?
Yes, by law anyone working on gas boilers, gas fires or gas pipework in your home must be Gas Safe registered. It's a criminal offence for an unregistered person to carry out this work. Always ask to see the engineer's Gas Safe ID card when they arrive and check the categories listed on the back cover the specific job you need, whether that's boilers, cookers or landlord gas safety checks.
How often should I get my boiler serviced?
Most manufacturers recommend an annual service to keep the warranty valid and to catch problems early, particularly before winter sets in. If your boiler is under ten years old and has had a clean service history, some engineers suggest servicing every 18 months is fine, but check your specific warranty terms first, as skipping a service can void it outright.
What should I do if I smell gas or think there's a carbon monoxide leak?
If you smell gas, turn off the supply at the stopcock or gas meter, open windows and doors, don't use any electrical switches or naked flames, and call the National Gas Emergency Service on 0800 111 999 immediately. For suspected carbon monoxide, get everyone outside into fresh air straight away and call 999 or the emergency number above. Don't wait to book a routine engineer visit for either of these, they need immediate attention.
How long does a boiler installation take in a typical Cambridge home?
A straightforward like-for-like combi boiler swap usually takes one day, sometimes finishing by early afternoon if access is easy. If you're moving the boiler's location, upgrading the flue, or switching from a system boiler to a combi, it can take two to three days once you factor in pipework changes and making good the walls afterwards. Older properties near the city centre with awkward loft access or solid floors can add extra time, so ask your engineer for a realistic estimate before work starts.
How do I choose between heating engineers in Cambridge?
Start by checking the engineer's Gas Safe registration number on the official register website, it only takes a minute and confirms they're legally allowed to do the work you need. Read through recent customer reviews rather than just the overall star rating, since patterns in comments tell you more than a number alone. Ask for proof of public liability insurance and, for bigger jobs, ask if they'll provide references from recent local customers. Get written quotes from at least two or three firms covering the same scope of work, and be wary of anyone unwilling to put pricing in writing before starting.
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