A New Boiler Fitted Properly — First Time
Tailored installations with honest advice. Up to 12-year manufacturer warranty available on qualifying installations.
Choosing the right boiler matters — for comfort, running cost and reliability. We take time to understand your home, your hot-water needs and your budget, then recommend the best system for the property.
We're a Viessmann-accredited installer — the German-engineered Vitodens range is our go-to boiler for its efficiency, reliability and market-leading warranty. We also fit Worcester Bosch, Vaillant, Ideal, Baxi and Glow-worm when they're the right fit for your home. Most installations include a system flush, magnetic filter, new controls and a thorough commissioning.
Did you know older non-condensing boilers typically run at just 55–65% efficiency, while modern condensing boilers can exceed 90%? Whether you need a like-for-like replacement or a full heating upgrade, you can count on Assiduous Heating to deliver expert work — first time.
The Assiduous Standard
Viessmann Accredited
Vitodens combi, system & conventional boilers.
Up To 12 Years
Extended manufacturer warranties available.
Honest Quotes
Transparent, itemised pricing every time.
Tidy Workmanship
Property left clean and tested.
Common Questions
Q. How long does a typical installation take?
A like-for-like combi swap usually takes 1–2 days. A full system change takes longer depending on pipework and radiators.
Q. Do you offer finance?
Finance options are available subject to status — ask us during your free quote.
Q. Do you handle the Gas Safe notification?
Yes — we notify the installation to Gas Safe Register and you receive a Building Regulations Compliance Certificate.
Q. Will I get a long warranty?
Most installations qualify for an extended manufacturer warranty (typically 7–12 years) depending on the boiler chosen.
Need a Boiler Service, Repair or Quote?
Our team is ready to help. Get in touch today.