Business Details
27 Years
experience
Trusted Plumbing & Boiler Services in Potters Bar
Established in 1999, Heat GB is a family-run business serving Potters Bar and surrounding areas in Hertfordshire. As Gas Safe registered engineers and Worcester Bosch Accredited Installers, we prioritise safety, quality, and customer satisfaction. Our team delivers reliable boiler installations, plumbing services, and gas safety certifications, backed by extensive industry experience. We specialise in modern condensing boilers, powerflushing, and central heating systems, ensuring energy efficiency and long-term performance. All work is guaranteed with a 1-year parts and labour warranty, reflecting our commitment to excellence.Our engineers, trained directly by boiler manufacturers, provide expert diagnostics and repairs using high-quality components. We adhere strictly to Gas Safe standards, maintaining transparency and trust with every client. Customer feedback consistently highlights our professionalism, technical expertise, and dedication to resolving heating and plumbing challenges efficiently. Operating across Barnet, Borehamwood, St Albans, and Welwyn Garden City, we combine local knowledge with national accreditation to serve both private and commercial clients.
Services
Boiler Diagnostics
Boiler Installations
Gas Servicing
Central Heating Systems
Landlord Gas Certificates
Plumbing Repairs
Powerflushing
Hot Water Cylinders
Details
- Year established: 1999
Highlights and features
- We have over 20 years of experience in domestic and commercial heating systems.
- Our engineers are Gas Safe registered with official identity cards.
- We offer extended 12-year guarantees on Worcester Bosch boilers.
- All work includes a 1-year parts and labour warranty.
- We serve Hertfordshire and surrounding areas with local expertise.
Associations and certifications
- Gas Safe Register
- Worcester Bosch Accredited Installers
- The Chartered Institute of Plumbing & Heating Engineers
What people say
Reliable service
Gas Safe registered
Worcester accredited
Local expertise
1-year warranty
Services
Boiler Installations
We specialise in installing modern condensing boilers from Worcester, improving energy efficiency by over 90%. Our Gas Safe engineers conduct full surveys to recommend the best boiler type for your needs. With extended guarantees up to 12 years, we ensure long-term performance and cost savings on heating bills.
Plumbing Services
Our NVQ-qualified plumbers handle all domestic plumbing tasks, from leaks and overflows to shower installations. We provide a professional service with a 1-year warranty on parts and labour. As members of the Chartered Institute of Plumbing, we guarantee quality workmanship.
Powerflushing
Powerflushing removes sludge and debris from central heating systems, improving efficiency and reducing energy bills. Our engineers use specialist chemicals and magnetic filtration to restore optimal performance. This service extends boiler lifespan and ensures even radiator heating.
Gas Servicing
Annual boiler servicing maintains safety, efficiency, and warranty validity. Our engineers perform comprehensive checks, including flue gas analysis and component inspections. We comply with Gas Safe standards to ensure your system operates reliably throughout the year.
Landlord Gas Certificates
We provide legally required CP12 certificates for landlords, ensuring compliance with gas safety regulations. Our Gas Safe engineers inspect all appliances annually, issuing documentation to protect tenants and property investments.
Questions
Are your engineers Gas Safe registered?
Yes, all our engineers are Gas Safe registered with official identity cards available on request.
Do you offer guarantees on boiler installations?
We provide extended guarantees up to 12 years on Worcester Bosch boilers, subject to terms.
What areas do you cover?
We serve Potters Bar, Borehamwood, St Albans, Welwyn Garden City, and surrounding Hertfordshire areas.
Can you service all boiler types?
Our engineers are trained to service all major boiler brands, including Worcester, Baxi, and Vaillant.
Is annual boiler servicing required?
Yes, manufacturers recommend annual servicing to maintain efficiency and warranty validity.
Reviews (4)
Mark Hulbert
Nov 15, 2021
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In 2017 Heat GB completely replaced the entire central heating system at Torrington Hall, St Albans - a massive job - nothing phases them. The heating system and hot water delivery to huge numbers of bathrooms has all performed flawlessly ever since. They're very experienced, very efficient, very flexible, very good value for money. We deal with vast numbers of tradesmen - these are the best of the best.
G. Roscelli
Jun 03, 2021
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Myself and my family have used Gary a number of times - excellent all round. Arrives on time, high quality workmanship, tidy, considerate. Couldnt recommend enough & restores your faith that in a world of so many cowboys out there, but there are honest people like Gary and GB Heat who provide an excellent, honest plumbing and heating service.
John Overall
Mar 05, 2021
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Great company to deal with,
Would Highly recommend them.
Had to have gas safety certificate and boiler maintenance
Work completed in the time stated and the cost quoted
Thank you
Would Highly recommend them.
Had to have gas safety certificate and boiler maintenance
Work completed in the time stated and the cost quoted
Thank you
Pany Varnavas
Dec 29, 2020
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Fast response, efficient and competent. Found the source of the leak and fixed within the same afternoon from initial contact.
Delighted. Thank you.
Delighted. Thank you.
