Business Details
17 Years
experience
Emergency
services
Trusted Plumbing & Heating Services in Watford
Established in 2009, FirmusHeat has built a reputation as a trusted provider of domestic and commercial plumbing and heating services across Watford, Hertfordshire, and surrounding areas. Our team of Gas Safe registered engineers brings over 14 years of combined experience, offering expert boiler installations, central heating repairs, powerflushing, and landlord gas safety certificates. As Worcester Accredited Installers, we provide extended warranties on select boiler brands while maintaining a commitment to quality workmanship and customer satisfaction. Our fully insured operations include 24/7 emergency services and a free no-obligation quote policy, ensuring accessibility and transparency for all clients. 
Services
Boiler Installation
Central Heating
Plumbing Repairs
Powerflushing
Landlord Certificates
Commercial Services
Bathroom Installation
Gas Safety Checks
Underfloor Heating
Boiler Servicing
Details
- Year established: 2009
Highlights and features
- 14 years of local plumbing and heating expertise since 2009
- Gas Safe registered engineers with Worcester Accredited status
- Extended warranties up to 12 years on Worcester Bosch boilers
- Checkatrade verified with 70+ customer reviews
- Free no-obligation quotes for all plumbing and heating projects
Associations and certifications
- Gas Safe Register
- Worcester Accredited Installers
What people say
Excellent service
Quick response
Professional engineers
No hidden fees
Highly recommend
Services
Boiler Installation
Our Gas Safe engineers specialise in new boiler installations for domestic and commercial properties. We work with leading brands like Worcester Bosch and Vaillant, offering up to 12-year warranties. All installations include system checks and efficiency optimisation to reduce energy bills by up to 40%.
Central Heating
We design and install complete central heating systems tailored to property requirements. Services include radiator upgrades, smart thermostat integration, and underfloor heating solutions. Our engineers ensure optimal performance through system balancing and pressure testing for both residential and commercial clients.
Plumbing Services
From emergency leak repairs to full bathroom renovations, our qualified plumbers handle all aspects of domestic and commercial plumbing. We specialise in blocked drain clearance, pipe repairs, and appliance installations while maintaining compliance with building regulations and safety standards.
Powerflushing
Our powerflushing service removes sludge and scale buildup from central heating systems using high-velocity water flow and chemical treatment. This restores efficiency, extends system lifespan, and prevents boiler breakdowns. We recommend this service before new boiler installations to maintain warranty validity.
Landlord Certificates
We provide CP12 gas safety certificates for rental properties, including annual appliance inspections and compliance documentation. Our Gas Safe engineers issue detailed reports with safety recommendations, ensuring landlords meet legal requirements while maintaining tenant safety standards.
People
Steve Thorpe
Director
With 14 years in the plumbing industry, Steve leads FirmusHeat's engineering team. He oversees all installations and safety checks, maintaining Gas Safe accreditation and Worcester partnership standards while ensuring customer satisfaction through transparent service delivery.
Questions
Do you offer emergency plumbing services?
Yes, we provide 24/7 emergency callouts for boiler breakdowns and urgent plumbing issues across Watford and surrounding areas.
What areas do you cover?
We serve Watford, Bushey, Harrow, Edgware, North London, and surrounding Home Counties including Hertfordshire and Buckinghamshire.
Are your engineers Gas Safe registered?
All our engineers hold current Gas Safe registration and undergo regular manufacturer training for boiler brands like Worcester and Vaillant.
Can I get a boiler service guarantee?
Yes, we offer boiler cover plans with 24/7 support and up to 12-year warranties on Worcester Bosch installations when using our servicing.
Do you handle commercial plumbing projects?
We provide comprehensive commercial services including system design, plant room installations, and maintenance contracts for businesses in Watford and London.
Videos
Reviews (6)
Matt Stuttard
Jul 29, 2021
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Positive:Professionalism,Responsiveness,Value
Good quick job, as quoted, clean and tidy + friendly
Service:Install water heater
Good quick job, as quoted, clean and tidy + friendly
Service:Install water heater
Paul Davison
Jul 26, 2021
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Attendance on site was fast and the work was undertaken in a professional manner.
Services:Repair pipe,Repair water heater
Services:Repair pipe,Repair water heater
E. R.
May 17, 2021
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Positive:Professionalism
Phoned Steve many times over the years, always sorts the problem out. Can be relied upon ! Good man good company...
Services:Find & repair leak,Unclog drain
Phoned Steve many times over the years, always sorts the problem out. Can be relied upon ! Good man good company...
Services:Find & repair leak,Unclog drain
Heather Shane
Mar 26, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Excellent service. Prompt response. Efficient website and support.
Service:Heating maintenance
Excellent service. Prompt response. Efficient website and support.
Service:Heating maintenance
Colin Geere
Mar 02, 2021
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Firmusheat were working on a project close to my home. A few days ago, I encountered an elderly lady that required significant assistance to get home with too much shopping that was beyond her capabilities. On my own, I was struggling to cope. Fortunately, two of Firmusheat's employees (Lee & Connor) were passing, came to our assistance and we managed to get her home safely. They were most courteous and giving of their (work) time, which was very much appreciated. Great humanity chaps. Thanks a lot.
Paul Magen
Jun 23, 2020
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Positive:Professionalism,Punctuality,Quality,Responsiveness
Steve and his team were very professional. From the beginning the quote was very quick and competitive. Originally my old boiler was in my garage which was causing problems this was solved when Steve suggested relocating the boiler to our bathroom. The work was completed within a week of me accepting the quote.
Service:Install water heater
Steve and his team were very professional. From the beginning the quote was very quick and competitive. Originally my old boiler was in my garage which was causing problems this was solved when Steve suggested relocating the boiler to our bathroom. The work was completed within a week of me accepting the quote.
Service:Install water heater
