8 Best Heating Engineers in Kettering for 2026

🔥 8 businesses · 📍 Kettering
✓ Reviewed regularly · ✓ Updated 12 September 2026
Mark Reid
Written by Mark Reid, Trades Editor · Verified 12 September 2026
Kettering's housing stock is a mixed bag, and that shapes the kind of heating work needed across the town. You've got Victorian terraces around the town centre with older pipework and cast iron radiators, newer estates out towards Barton Seagrave and Kettering's eastern edges with combi boilers barely a few years old, and everything in between across Rothwell Road and the Avenues. A heating engineer working here needs to know how to deal with both a temperamental back boiler in a period property and a modern condensing combi that's thrown an error code. Hard water in this part of Northamptonshire also means limescale build-up is a common culprit behind noisy boilers and reduced efficiency, so local engineers tend to see a fair bit of power flushing work alongside standard servicing.

The businesses listed here are pulled from public business listings and ranked using review rating and review count, with a modest boost given to those showing a working website and phone number. We also check each business's homepage to confirm heating engineering is genuinely their main line of work, which stops general builders or unrelated tradespeople slipping onto a page like this. Listings flagged as permanently closed get removed automatically as part of that process. Where you spot a Trust Verified badge next to a business, that firm has gone through our full verification process covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information, and you can read exactly what that involves on our How We Verify page. For businesses without that badge, we'd encourage you to do those checks yourself before booking anything.

Before you commit to an engineer, ask to see their Gas Safe registration card and check the number against the type of work they're quoting for, whether that's boiler installation, gas fires or unvented cylinders. Get a written quote that breaks down parts and labour separately, and ask whether it includes a benchmark certificate or warranty registration for a new boiler. It's worth getting two or three quotes for anything beyond a basic service or minor repair, since prices for jobs like full system replacements can vary by a thousand pounds or more between firms depending on the boiler brand and how much pipework needs altering. If a job involves moving a boiler or altering flue routes, ask how they'll handle building regulations notification too.
How We Select & Rate The Best Heating Engineers in Kettering

Businesses are ranked using review rating and review count taken from public business listings, with a small lift given to those showing a working website and contactable phone number. We check each business's homepage to confirm heating engineering work is what they primarily offer, which keeps unrelated trades off this page. Listings marked as permanently closed are removed automatically. Where a business carries a Trust Verified badge, it has 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 details). Businesses without that badge haven't been independently verified by us, and appearing on this page isn't an endorsement. Always carry out 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 →

Quick Comparison: Heating Engineers in Kettering

Our Top Picks

1
Prime Gas Services Limited
Not Verified
★★★★★ 5.0 (107 reviews)
Kettering 07828 972225

Prime Gas Services Limited works as a heating engineer covering Kettering, handling boiler installations, servicing and repairs for households across the area. The firm has built a strong local reputation, holding a five-star rating from 107 reviews. Enquiries can be made through its website for anyone needing gas or heating work carried out.

Read more →
2
DS Plumbing and Heating
Not Verified
★★★★★ 5.0 (96 reviews)
Kettering 07808 651553

A cold radiator or a boiler that's stopped firing up usually prompts the first call to DS Plumbing and Heating in Kettering. The work tends to involve diagnosing the fault, sourcing parts and getting the system running again with minimal disruption. Ninety-six reviews and a perfect five-star average suggest customers are generally left satisfied with the outcome.

Read more →
3
Coles For Fires
Not Verified
★★★★★ 4.7 (149 reviews)
Kettering 01536 410777

Older properties around Kettering with ageing fireplaces and outdated heating setups make up much of the workload for Coles For Fires, alongside installations in more modern homes. The firm handles servicing and fitting of fires and stoves, with 149 reviews putting the average at 4.7. Work is carried out across NN15 and the surrounding area.

Read more →
4
Corvee Property Services Ltd
Not Verified
★★★★★ 4.7 (137 reviews)
Kettering 01536 680920

A 4.7 rating from 137 reviews places Corvee Property Services Ltd among the more consistently reviewed heating engineers serving Kettering. The company handles boiler and heating system work across the town, with the volume of feedback suggesting a steady, established customer base rather than occasional trade. Enquiries can be made through its website for scheduling.

Read more →
5
R.Foster Plumbing and Heating
Not Verified
★★★★★ 4.8 (64 reviews)
Kettering 07545 051124

Heating and plumbing work in Kettering is the focus of R.Foster Plumbing and Heating, covering boiler installations, repairs and general system faults. The business has built up a 4.8 rating from 64 reviews locally, reflecting consistent workmanship rather than one-off jobs. Callouts extend across the surrounding area, with attention to older properties as well as new installs.

Read more →
6
Assured plumbing and heating
Not Verified
★★★★★ 4.6 (56 reviews)
Kettering 07958 509894

A boiler that won't fire up on a cold morning, or a radiator that stays stubbornly lukewarm, is typically what brings people to Assured Plumbing and Heating in Kettering. The firm handles repairs, servicing and installations for domestic heating systems, with 56 Google reviews averaging 4.6 reflecting consistent follow-through on jobs.

Read more →
7
S.T. Holford
Not Verified
★★★★★ 5.0 (6 reviews)
Kettering 01536 414585

S.T. Holford works as a heating engineer covering Kettering, taking on boiler installation, servicing and repair work for homes in the area. The firm has built a small but consistent record of positive feedback, holding a perfect rating from six reviews. Its focus remains on domestic heating systems rather than wider building work.

Read more →
8
L.A.J Plumbing and Heating Ltd
Not Verified
★★★★★ 5.0 (22 reviews)
Kettering 07989 882032

Boiler installation and servicing form the core of L.A.J Plumbing and Heating's work in Kettering, alongside general plumbing repairs for local households. The firm has built a perfect five-star record across 22 Google reviews, reflecting consistent reliability on jobs ranging from small leaks to full heating system upgrades.

Read more →
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 →

Is your business missing?

Get listed and reach customers actively searching for your services in this area.

Add Your Business

Frequently Asked Questions

How much does a heating engineer cost in Kettering?
A standard annual boiler service typically runs from around £70 to £110, while a call-out for a fault diagnosis is often £60 to £90 for the first hour. A full combi boiler replacement, including flue work and a new thermostat, generally lands between £1,800 and £3,200 depending on the brand and how accessible the boiler location is. Full central heating system installations in an unheated property can run considerably higher, sometimes £5,000 or more once radiators and pipework are included. Prices shift depending on property type, so getting two or three quotes for anything beyond a basic service is sensible.
How long does a boiler installation take?
A like-for-like combi boiler swap usually takes a single day, sometimes finishing by early afternoon if there are no complications. If the engineer needs to move the boiler to a new location, run new pipework, or upgrade the flue, it can stretch to two days. Full system installations, including new radiators throughout a house, often take three to five days depending on the number of rooms involved.
Do I need a Gas Safe registered engineer for boiler work in Kettering?
Yes, any work on a gas boiler, gas fire or gas pipework must legally be carried out by a Gas Safe registered engineer. Ask to see their ID card before work starts, and check the back of it lists the specific type of gas work they're qualified for, since registration can be limited to certain categories. You can also check an engineer's registration number directly with Gas Safe Register if you want extra peace of mind.
What's the difference between a boiler service and a boiler repair?
A service is routine maintenance, usually done annually, where the engineer checks the boiler's components, tests for leaks, and confirms it's running safely and efficiently. A repair is carried out when something's actually gone wrong, such as a failed pump, a broken diverter valve, or a pressure sensor fault. Keeping up with annual servicing tends to reduce the chances of an unexpected breakdown mid-winter, and it's usually a condition of manufacturer warranties too.
Should I repair or replace an old boiler?
If your boiler is under ten years old and the repair cost is under a few hundred pounds, repairing usually makes sense. Once a boiler passes the twelve to fifteen year mark, or if it's needed multiple repairs in a short space of time, replacement often works out cheaper long term, especially with newer condensing boilers being notably more efficient. An engineer can give you a straight answer on this after inspecting the unit, and it's worth asking them to explain the running cost difference rather than just the repair quote.
How do I choose between heating engineers in Kettering?
Start by checking their Gas Safe registration number yourself on the official register, rather than just taking their word for it. Read through recent customer reviews, not just the star rating, looking for mentions of punctuality, tidiness and whether they explained costs clearly before starting work. Ask for a written quote from at least two or three engineers so you can compare parts and labour breakdowns properly. It's also worth asking how long they've been trading locally and whether they carry public liability insurance, and requesting proof rather than assuming it's in place.