Installing a new boiler is an important investment in your home’s comfort and energy efficiency. At JTS Plumbing & Heating, we provide expert boiler installation services throughout London, ensuring your property remains warm and your system operates reliably for years to come.
Whether you’re replacing an old, inefficient boiler or fitting one in a new property, our Gas Safe registered engineers will guide you through the process—from selecting the right model to professional, compliant installation. We provide honest advice, fixed transparent pricing, and top-quality workmanship to deliver peace of mind and long-term value.
Our engineers are Gas Safe registered and trained in the latest boiler technologies. We install top boiler brands with precision and care to ensure optimal performance and safety.
Whether it's a single-family home, rental property, or commercial building, we tailor each installation to your needs—ensuring energy efficiency, proper sizing, and seamless operation.
Enjoy quick, professional boiler installation with minimal disruption. We help you choose the right energy-efficient system and install it safely—so your home stays warm, sooner.
Explore our trusted plumbing and heating solutions across Hertfordshire—delivered by certified experts with no hidden fees and no hassle.
Trusted boiler experts for servicing, repairs, and efficiency in every home and business.
Expert plumbing services for reliable repairs, installations, and maintenance solutions.
We are available 24/7 for heating and plumbing repairs
Testimonial
It’s rarely convenient. The heating cuts out halfway through a shower in Hemel Hempstead, or you come downstairs in Cheshunt
By the third week of August, our diary starts filling with a specific kind of call. Not emergencies, just homeowners
It starts small. A faint knocking sound from the airing cupboard that you tell yourself is just the pipes settling.
A Victorian terrace in Cheshunt, boiler tucked into a cupboard that’s clearly older than the tenant, radiators warm at the
A customer in Cheshunt rang us at half past eleven on a Sunday night last winter. Their boiler had stopped
Three callouts on the same boiler in one winter, that’s usually the moment people finally ring us about a Boiler
Gas boiler installation in the UK typically costs between £1,800 and £3,500 for a straightforward combi replacement. More complex installations, system conversions, or larger boilers can range from £3,500 to £5,500. The final cost depends on boiler type, output, and installation complexity.
No. UK law requires all gas boiler installations to be carried out by a Gas Safe registered engineer. DIY gas work is illegal and dangerous, and can lead to gas leaks, carbon monoxide risks, invalid warranties, and insurance issues.
The correct boiler size depends on your property size, number of bathrooms, radiators, and hot water demand. Small flats typically need 24–27kW combi boilers, while larger homes may require 30–40kW or system boilers. A heating engineer will perform a heat-loss calculation to recommend the correct output.
The most common causes of boiler failure are worn internal components, low system pressure, pump or valve faults, and lack of annual servicing. Sludge or debris in the heating system can also damage parts over time.
Signs a boiler may need replacing include frequent breakdowns, expensive repairs, poor efficiency, inconsistent heating, unusual noises, and age over 12–15 years. If repair costs approach replacement cost, installing a new boiler is usually the better option.
At JTS Plumbing and Heating, our expert team is here to assist you with any heating or boiler concerns—reach out today for reliable support.
