24 Best Heating Engineers in Portsmouth for 2026

Boiler installations, servicing, and gas safety inspections are the core work at Gas-Fix Ltd, a heating engineer based in Portsmouth. The company covers domestic and commercial properties across the area, carrying out repairs alongside planned maintenance. PO8 0QB places them at the northern edge of the city, within reach of surrounding Hampshire villages as well as the urban centre.

Prestige Plumbers specialises in heating engineering across Portsmouth, covering boiler installation, servicing, and central heating repairs. Operating under the Shedfield Plumbers Ltd name, the company serves both residential and commercial clients. The PO17 postcode base places them within reach of surrounding Hampshire communities as well as the city itself.

Landlords and letting agents across Portsmouth call on Omni Heating for boiler servicing, repairs and gas safety certificates needed between tenancies. The firm's PO3 base allows quick turnaround on routine checks and breakdowns alike, which matters when properties need to stay compliant and occupied. A 5-star average from 115 reviews reflects consistent reliability on these jobs.

CGE Southern provides gas engineering services to Portsmouth and the surrounding Southsea area from their base on Montgomerie Road. The company has earned a 5-star rating from 113 verified customer reviews, demonstrating their reliable service to local residents. They offer professional gas installation, maintenance and repair services throughout the PO5 postcode area.

Landlords and letting agents across Portsmouth call on Glo Heating Ltd for boiler servicing, repairs and gas safety checks needed to keep rental properties compliant. The firm handles routine maintenance schedules alongside emergency callouts, useful for property managers juggling multiple tenancies. A 5-star average from 80 reviews reflects consistent reliability on this front.

Covering Portsmouth and the surrounding area, Andy Gas Southern Ltd specialises in domestic and commercial gas heating installation and maintenance. The company operates from the PO3 postcode district, making it a practical choice for homeowners and businesses in the eastern parts of the city. Its focus sits squarely on gas engineering rather than broader trades, which gives the work a clear technical specialism.

Solent Plumbing & Heating Solutions provides gas engineering services to Portsmouth and the surrounding Southsea area from their base on Prince Albert Road. The company maintains a 5-star Google rating from 42 verified customer reviews, reflecting their reliable service for local residents and businesses. Their qualified gas engineers handle installations, maintenance, and repair work across the Portsmouth postcode areas.

Boiler installation and servicing form the core of PPH South's work across Portsmouth, alongside repairs to keep existing systems running through winter. The firm operates from PO3 6BQ and has built up a strong local record, reflected in a 4.9 rating from 42 reviews. Landlords and homeowners alike use them for gas safety checks and breakdown callouts.

Landlords and letting agents across Portsmouth call on this Gas Safe engineering firm for boiler servicing, repairs and safety certificates needed between tenancies. Portsmouth Gas Heating Limited holds a five star rating from 17 reviews, reflecting reliability that agents managing multiple properties depend on. Work covers routine maintenance through to breakdown callouts for rented homes.

Aqua Gas Heating and Plumbing (Southern) Ltd provides gas engineering services from their Hilsea base in Portsmouth. The company maintains a 5-star rating across 16 verified Google reviews, reflecting their work in the PO2 area. They offer professional gas heating and plumbing solutions for residential and commercial clients throughout Portsmouth.

A perfect 5 from 13 reviews puts JPH Plumbing and Heating Ltd among the more consistently rated heating engineers in Portsmouth. The firm handles boiler and heating system work across the city, with client feedback pointing to reliable, straightforward service rather than one-off jobs.

A call to Plumbcure Gas & Electricals often starts with a boiler that's stopped firing or a heating system running cold in parts of the house. The Portsmouth firm handles diagnosis and repair alongside gas and electrical work, with 13 reviews on Google all rating the service five stars.

CBW Plumbing & Heating provides gas engineering services throughout Portsmouth from their base in Drayton. The company maintains a 5-star rating from 7 verified customer reviews, reflecting their reliable service for local residents. They offer comprehensive plumbing and heating solutions for both domestic and commercial properties in the PO6 area and surrounding Portsmouth locations.

Cosy Gas Limited covers heating engineering work for domestic properties in Portsmouth, with a focus on gas systems and boiler installations. The business serves the PO11 area and surrounding parts of the city. No rating data is available in the directory listing at this time.

Fosters Gas & Heating Ltd provides gas engineering services to Portsmouth and surrounding areas from their base in PO3. The company maintains an excellent 5-star rating from 6 verified customer reviews on Google. Their qualified engineers handle gas appliance installations, repairs, and maintenance for residential and commercial properties.

Boiler installation and repair form the core of Plumbcure Gas and Electricals' work in Portsmouth, alongside general gas and electrical fault finding. The firm has built a small but perfect record locally, holding a 5 from 5 rating across its reviews. Landlords and homeowners alike use the firm for certificates and routine servicing.

A rating of 4.4 from 19 reviews places Modern Heating among the more consistently reviewed heating engineers in Portsmouth. The firm handles boiler repairs, servicing and installations for homes across the city, working within the PO4 postcode area. Customers note reliable timekeeping and clear communication throughout jobs.

Heating engineering work in Portsmouth is carried out by Quality Gas (Portsmouth) Ltd, covering boiler installation, servicing and repairs for homes across the city. The firm operates as a Gas Safe registered business, dealing with breakdowns and routine maintenance alike. Work is organised directly with customers in the PO4 area and beyond.

R-GAS Heating Ltd provides gas engineering services from their Southsea base, serving Portsmouth and the surrounding area. The company maintains a 5-star Google rating based on 4 verified customer reviews. Their services include gas appliance installation, maintenance, and repair work for residential and commercial properties.

CAPA Gas & Plumbing Ltd works as a heating engineer covering Portsmouth, handling boiler installations, servicing and general plumbing repairs. The firm operates from the PO4 area, giving it a working knowledge of local housing stock and common heating issues in the surrounding streets. Enquiries can be made through its website for both routine maintenance and emergency call-outs.

Heat Co Gas Limited provides gas engineering services to Portsmouth and the surrounding areas. The company has earned a perfect 5-star rating from 3 verified customer reviews, reflecting their reliable approach to gas installations, repairs and maintenance. Their qualified engineers handle both domestic and commercial gas work throughout the local Portsmouth community.

HB Gas Services provides gas engineering services to Portsmouth and the surrounding Southsea area from their Victoria Road South base. The company maintains a 5-star rating from 3 verified Google reviews, reflecting their commitment to quality workmanship. Their services cover the full range of gas engineering requirements for residential and commercial properties in the PO5 postcode area.

Gas and plumbing work across Portsmouth and the surrounding area is the focus of R Russell Gas and Plumbing Ltd, a company covering both domestic heating installs and general plumbing repairs. Operating from the PO10 postcode, the firm serves clients across the south Hampshire coast. Their website, rrgap.co.uk, outlines the range of work they undertake for residential customers.

Craneswater Gas is a heating engineering firm serving Portsmouth, covering boiler installation, servicing and repair work. The business holds a 4-star rating from 16 reviews on Google, reflecting steady custom across the local area. Enquiries can be made through its website for anyone needing gas heating systems checked or replaced.