High Quality
Years Of Experience
Family-Run Business
Comprehensive Heating System Power Flush
A central heating power flush effectively cleans your system, removing sludge and debris that can cause boiler breakdowns. Over time, dirty water and sludge build-up can reduce boiler efficiency and performance. Power flushing restores optimal operation, helping your heating system run smoothly and efficiently while prolonging the life of your boiler and system components.

Professional Boiler Fixing Solutions
Our skilled engineers diagnose and repair all major boiler brands, including specialist knowledge of Ideal and Worcester Bosch systems. We deliver fast, reliable, and effective repairs to ensure your home stays warm and comfortable. With extensive experience in boiler servicing, we provide solutions that restore efficiency and prolong the life of your system.


Certified Landlord Gas Safety Inspections
We offer comprehensive Gas Safety Certificates (CP12) for landlords, homeowners, and estate agents throughout Portsmouth and nearby areas. Upon completion, your certificate is promptly emailed for your convenience. Our secure electronic payment system ensures a quick, hassle-free process so you can maintain compliance without delay.
Yearly Boiler Maintenance
Regular servicing by a Gas Safe Registered engineer ensures your boiler runs efficiently, prolongs its lifespan, and reduces the risk of costly repairs. Servicing also helps prevent hidden hazards such as carbon monoxide leaks, keeping your home safe and energy bills low. We also provide boiler installations and many plumbing services. Contact us to learn more.
Heating System Fault Diagnosis & Repair
We diagnose and repair all makes and models of central heating systems, delivering reliable solutions in the most cost-effective way possible. Our expert engineers ensure your system is restored to optimal performance with minimal disruption to your home or business.
Highly recommend Quality Gas Portsmouth!
Jon has carried out numerous jobs for us at home over the past few years, including a full boiler installation and two brand-new bathrooms. Every job has been completed to an exceptional standard, and the quality of his workmanship really stands out. He’s not only incredibly skilled and professional, but also genuinely friendly.
He always takes the time to explain things clearly, and you can tell he takes pride in what he does. It’s such a relief to have someone you can trust to do the job properly without cutting corners. We’ve been so impressed with his reliability, attention to detail, and how tidy everything is left afterward.
If you’re looking for someone who’s professional, dependable, and clearly passionate about their work, you honestly can’t go wrong with Jon and Quality Gas Portsmouth. We wouldn’t use anyone else!
- Tom West
Book Professional Boiler Servicing For Your System
Maintain efficiency and safety with expert servicing you can rely on. Call us now for dependable boiler care and lasting peace of mind.


