15 Best Gas Engineers in Southampton for 2026

🔥 15 businesses · 📍 Southampton
✓ Verified Google reviews · ✓ Reviewed regularly · ✓ Updated 29 May 2026
Mark Reid
Written by Mark Reid, Trades Editor · Verified 29 May 2026
Southampton's housing stock is a genuine mix. You've got Victorian terraces in Shirley and Freemantle with original pipework that can throw up all sorts of surprises, post-war semis across Bitterne and Woolston that were fitted with whatever central heating system was cheap at the time, and newer builds out towards Hedge End and West End running Worcester Bosch or Ideal Logic combi setups. The city also has a decent chunk of flats, particularly around the waterfront and the old docklands areas, where accessing gas supplies and flues requires an engineer who knows their way around communal plant rooms and shared risers. Southampton's coastal proximity means damp is a factor too, and poorly maintained boilers in older properties can deteriorate faster than you'd expect. Whether you need a full system boiler replacement, a landlord gas safety certificate, or someone to track down why your pressure keeps dropping, getting the right gas engineer makes a real difference.

The businesses listed on this page were drawn from third-party business listings and ranked by public review rating and review count, with a small lift given to those that show a working website and a contactable phone number. Before any business appears here, we check their homepage to confirm that gas engineering work is what they primarily offer, which is what keeps unrelated trades from showing up in results like these. Any listing flagged as permanently closed is removed automatically. You'll notice some businesses carry a Trust Verified badge. That badge is applied individually and means the business has additionally passed our full verification process, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can see exactly what that process involves on our How We Verify page. For businesses that don't carry that badge, those checks are ones you'll need to carry out yourself before booking.

Before you commit to any gas engineer, ask to see their Gas Safe registration card. Every engineer working on gas appliances in the UK is legally required to be Gas Safe registered, and you can verify any registration number directly on the Gas Safe Register website. For a new boiler installation, get at least three quotes. Prices vary considerably depending on the boiler brand, the complexity of the pipework run, and whether your system needs a powerflush beforehand. A straightforward combi swap on a like-for-like basis in Southampton typically runs from around £1,800 to £2,800 fully installed, but that figure shifts if the flue route is awkward or if the existing pipework needs replacing. After any gas work is completed, the engineer should provide you with a Building Regulations compliance certificate (a Gas Safe notification) for notifiable work. Keep that paperwork safe, because you'll need it if you ever sell the property.
How We Select & Rate The Best Gas Engineers in Southampton

Rankings on this page are driven by public review rating and review count, sourced from third-party business listings, with a small lift applied to businesses that have a working website and a contactable phone number. We check each business's homepage to confirm that gas engineering is what they primarily offer, which keeps unrelated trades off the page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have additionally passed our full verification covering qualifications, 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 have not been independently verified by us, and inclusion here is not an endorsement. Always carry out your own checks before hiring.

Positions 1–5 (Recommended and Featured) may be paid placements. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →

Quick Comparison — Gas Engineers in Southampton

# Business Rating Reviews Phone
1 AE Renewables ltd Recommended ⭐ 4.9 88 +44 7706 445778 View →
2 L P Heating and Plumbing ltd Featured ⭐ 5.0 71 +44 7545 139190 View →
3 Gassed Up Heating Ltd Featured ⭐ 5.0 70 +44 7415 380453 View →
4 RP Heating Solutions Ltd Featured ⭐ 5.0 65 +44 7802 810720 View →
5 KPH Southern Plumbing & Heating Ltd Featured ⭐ 5.0 34 +44 23 8225 6737 View →
6 PCS Heating and Plumbing ⭐ 5.0 34 +44 7876 405015 View →
7 BBI Heating ⭐ 5.0 33 +44 7506 756830 View →
8 Combi-Nation Gas heating and plumbing ⭐ 4.7 42 +44 23 8077 5666 View →
9 Gasworks ⭐ 4.5 79 View →
10 PrimeFlow Plumbing & Heating ⭐ 5.0 24 +44 7985 656538 View →
11 Tip Top Plumbing, Heating and Gas Services Ltd ⭐ 5.0 16 +44 23 8057 1673 View →
12 G.E. Harding & Sons Ltd ⭐ 4.7 15 +44 23 8038 2830 View →
13 M Curtis Gas Services Ltd ⭐ 4.5 15 +44 7886 324952 View →
14 Emberson Gas Services ⭐ 5.0 6 +44 7972 259902 View →
15 Braeside Property Services Ltd ⭐ 4.0 7 +44 7792 044563 View →

Our Top Picks

6
PCS Heating and Plumbing
Not Verified
5.0 (34 reviews)
Southampton +44 7876 405015

PCS Heating and Plumbing provides gas engineering services throughout Southampton, specialising in heating system installations, repairs, and maintenance work. The company has earned a 5-star rating from 34 verified customer reviews, reflecting their reliable approach to residential and commercial gas appliance servicing. Their qualified engineers handle boiler installations, gas safety certificates, and emergency call-outs across the Southampton area.

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7
BBI Heating
Not Verified
5.0 (33 reviews)
Southampton +44 7506 756830

BBI Heating provides gas engineering services to Southampton and surrounding areas from their base on Archers Road. The company maintains a 5-star rating from 33 verified customer reviews, reflecting their work in gas appliance installation, maintenance and repairs. They serve the SO15 postcode area and wider Southampton region for both residential and commercial gas engineering requirements.

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8
Combi-Nation Gas heating and plumbing
Not Verified
4.7 (42 reviews)
Southampton +44 23 8077 5666

Combi-Nation Gas heating and plumbing provides gas engineering services throughout Southampton from their Portsmouth Road base in SO19. The company specialises in central heating systems and plumbing work for residential and commercial properties. With a 4.7/5 star rating from 42 verified customer reviews, they have built a solid reputation for reliable gas engineering services in the Southampton area.

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9
Gasworks
Not Verified
4.5 (79 reviews)
Southampton

Gasworks provides professional gas engineering services to Southampton and surrounding areas from their base on Shirley Road. The company maintains a strong reputation with customers, earning 4.5 out of 5 stars from 79 verified Google reviews. Their experienced engineers handle gas installations, repairs, and maintenance for residential and commercial properties throughout the SO15 area.

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10
PrimeFlow Plumbing & Heating
Not Verified
5.0 (24 reviews)
Southampton +44 7985 656538

PrimeFlow Plumbing & Heating provides gas engineering services to customers across Southampton from their base on Foundry Lane. The company has earned a perfect 5-star rating from 24 verified customer reviews, reflecting their reliable approach to gas installations, repairs, and maintenance work. They serve the SO15 area and surrounding Southampton neighbourhoods with professional gas engineering solutions.

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11
Tip Top Plumbing, Heating and Gas Services Ltd
Not Verified
5.0 (16 reviews)
Southampton +44 23 8057 1673

Tip Top Plumbing, Heating and Gas Services Ltd provides gas engineering services to Southampton and surrounding areas from their base on Upper Weston Lane. The company holds an impressive 5-star rating from 16 verified customer reviews on Google. They specialise in plumbing, heating systems, and gas services for residential and commercial properties in the SO19 area.

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12
G.E. Harding & Sons Ltd
Not Verified
4.7 (15 reviews)
Southampton +44 23 8038 2830

G.E. Harding & Sons Ltd provides gas engineering services to Southampton and surrounding areas from their base on Northam Road. This family-run business has earned a strong reputation with customers, achieving a 4.7 out of 5 star rating based on 15 verified Google reviews. The company operates from Drivers Wharf in the SO14 postcode area, offering professional gas engineering solutions to local residents and businesses.

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13
M Curtis Gas Services Ltd
Not Verified
4.5 (15 reviews)
Southampton +44 7886 324952

M Curtis Gas Services Ltd provides professional gas engineering services to customers throughout Southampton from their SO18 base. The company maintains a strong reputation with a 4.5-star rating from 15 verified customer reviews on Google. Their qualified gas engineers handle a range of domestic and commercial gas work across the Southampton area.

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14
Emberson Gas Services
Not Verified
5.0 (6 reviews)
Southampton +44 7972 259902

Emberson Gas Services provides professional gas engineering solutions for residential and commercial properties in Southampton and the surrounding SO15 area. The company maintains a perfect 5-star rating from 6 verified customer reviews, reflecting their reliable service and technical expertise. Based on Regents Park Road, they handle gas appliance installations, repairs, and safety inspections throughout the local community.

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15
Braeside Property Services Ltd
Not Verified
4.0 (7 reviews)
Southampton +44 7792 044563

Braeside Property Services Ltd provides gas engineering services to customers in Southampton and the surrounding areas. Based on Braeside Crescent in the SO19 postcode area, the company has earned a 4 out of 5 star rating from 7 verified customer reviews. Their services cover gas installations, maintenance, and repairs for residential and commercial properties throughout the local region.

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Transparency notice: Recommended (#1) and Featured (positions 2-5) listings may be paid placements, so a business's fee affects whether and where it appears in those positions. 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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Frequently Asked Questions

How much does a gas engineer cost in Southampton?
Call-out fees typically range from £65-£95, with hourly rates between £75-£120 depending on the job complexity and time of day. Emergency weekend work costs more. Boiler services run £80-£120, while new combi boiler installations range from £2,500-£4,500 including the unit. Central heating power flushes cost £400-£600. Getting two or three quotes is standard practice, especially for major work like boiler replacements or new gas line installations.
How quickly can a gas engineer attend an emergency in Southampton?
Most Southampton gas engineers aim for same-day emergency response, often within 2-4 hours for genuine emergencies like gas leaks or complete heating failures. Non-urgent repairs might wait 1-3 days depending on their workload. Winter months see longer delays due to increased boiler breakdowns. Always turn off your gas supply at the meter if you smell gas and call the National Gas Emergency Service on 0800 111 999 before contacting a local engineer.
What qualifications should I check before hiring a gas engineer?
All legitimate gas engineers must hold current Gas Safe registration - never hire anyone without it. Check their registration number on the Gas Safe website and verify it covers the specific work you need. Some jobs require additional qualifications like OFTEC for oil boilers or LPG tickets for gas bottles. Ask to see their registration card before work begins and don't pay upfront for materials or labour.
Do Southampton gas engineers work on weekends and evenings?
Many offer emergency cover seven days a week, though weekend and evening rates typically cost 20-50% more than standard hours. Some engineers work Saturdays at normal rates but charge premium rates on Sundays. Emergency gas leak responses are available around the clock, but non-urgent work like annual services usually happens Monday to Friday. Book routine maintenance well ahead to secure preferred time slots.
What's included in an annual boiler service in Southampton?
A proper service includes checking gas pressures, examining the flue and ventilation, testing safety devices, and cleaning key components. The engineer should inspect pipework, check for leaks, test the thermostat, and verify correct combustion ratios. You'll receive a service certificate confirming the boiler's safe operation. Basic services take 45-90 minutes and cost £80-£120. Some engineers offer service plans with annual visits plus discounted repairs.
How do I verify a gas engineer's credentials and reliability?
Check their Gas Safe registration number online at gassaferegister.co.uk and verify it's current and covers your job type. Look up their business on Companies House to confirm active trading status. Read recent Google reviews, focusing on detailed feedback rather than just star ratings. Ask for references from recent customers and don't be afraid to contact them. Request written quotes specifying materials, labour costs, and completion timeframes before agreeing to any work.