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26 Years
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Emergency
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Trusted Plumbing & Heating Services in Trowbridge
G4 Gas is a dedicated team of plumbing and heating engineers based in Trowbridge, serving clients across the local area and beyond. With over 25 years of experience, we specialise in gas, oil, and LPG boiler services, emergency plumbing, and central heating installations. Our Gas Safe registered engineers prioritise safety, efficiency, and customer satisfaction, offering thorough inspections, repairs, and maintenance. We pride ourselves on our local reputation, competitive pricing, and commitment to resolving issues promptly.

Our services extend to water softeners, booster pumps, and renewable energy solutions like air source heat pumps. Backed by Free Site Visits and No Call-Out Fees, we ensure transparency and reliability. Our teams expertise, combined with a focus on modern technology such as SMART thermostats, guarantees tailored solutions for residential and commercial properties.
Services
Gas Boiler Servicing Oil Boiler Servicing LPG Boiler Servicing Boiler Replacement Plumbing Repairs Central Heating Installations Air Source Heat Pumps Water Softeners Emergency Plumbing Radiator Repairs
Details
  • Year established: 2000
Highlights and features
  • Gas Safe registered engineers for safe boiler services
  • Over 25 years of local plumbing and heating expertise
  • SMART thermostat installations for energy efficiency
  • Excellent local reputation with 66+ 5-star reviews
  • Free site visits and no call-out fees for all services
Associations and certifications
  • Gas Safe Register
  • Federation of Small Businesses (FSB)
  • MCS Certified Installer
What people say
Prompt service Reliable Professional Efficient Excellent value
Services
Gas Boiler Servicing
Our Gas Safe engineers provide thorough gas boiler servicing to ensure safety, efficiency, and compliance. Regular maintenance reduces carbon monoxide risks, extends boiler lifespan, and maintains warranties. We test for leaks, pressure issues, and component functionality, offering repairs or upgrades. Ideal for homeowners seeking reliable heating during winter months.
Plumbing Repairs
We handle urgent plumbing issues like leaks, burst pipes, and faulty appliances. Our team responds promptly to minimise property damage. Services include toilet repairs, shower fixes, and pipework maintenance. Available for both minor adjustments and major emergencies, ensuring minimal disruption to daily routines.
Air Source Heat Pumps
We install Viessmann air source heat pumps, offering sustainable heating solutions. These systems extract heat from ambient air, reducing carbon emissions and energy bills. As MCS-certified installers, we ensure compliance with government incentives. Tailored assessments determine optimal system size and configuration for residential or commercial properties.
Central Heating Upgrades
Our central heating services include radiator replacements, system upgrades, and SMART thermostat integrations. We diagnose issues like low pressure, leaks, or inefficient heat distribution. Modern systems improve energy efficiency, reduce bills, and enhance comfort, with options for both new installations and existing system optimisation.
Water Softener Installation
We install Harvey Water Softeners to combat hard water issues. These systems remove calcium and magnesium, preventing limescale buildup in pipes and appliances. Benefits include softer skin, cleaner laundry, and prolonged appliance lifespan. Ideal for Wiltshire properties with chalk/limestone geology causing hard water.
Questions
Do you offer emergency plumbing services?
Yes, we provide 24/7 emergency plumbing assistance for leaks, burst pipes, and heating failures. Our team responds swiftly to minimise damage.
How often should I service my boiler?
We recommend annual boiler servicing to ensure safety, efficiency, and warranty compliance, ideally before winter begins.
Can you install SMART thermostats?
Yes, we integrate SMART thermostats with boilers and heating systems for remote control, energy savings, and automated temperature adjustments.
Do you service oil and LPG boilers?
Yes, our Gas Safe engineers service all boiler types, including oil and LPG systems, ensuring optimal performance and safety.
Are financing options available for boiler replacements?
Yes, we offer financing plans to help customers spread the cost of new boiler installations and heating upgrades.