Boilers & Heating FAQs
Quick, clear answers to the questions we are asked most often about boilers and home heating.
- Last reviewed: July 2026
- Reading time: 5 minutes
Key takeaway
Quick answers to the most common questions about boilers — from knowing when to replace one, to types, costs, installation and Gas Safe engineers.
Your questions answered
Choosing a new boiler naturally brings up questions, and that is exactly as it should be — it is an important decision for your home. Below are clear, straightforward answers to the questions we hear most often. If your question is not covered here, our friendly team is always happy to help.
Frequently asked questions
How do I know if I need a new boiler?
Signs include rising bills, frequent breakdowns, uneven heating, strange noises, or a boiler more than around ten to fifteen years old. If yours is struggling, a new, efficient boiler can be more reliable and cheaper to run. Our engineers will give you honest advice.
Which type of boiler is best for my home?
It depends on your home and how you use hot water. A combi suits many smaller homes, while system and regular boilers work well for larger homes with several bathrooms. We recommend the best fit during your free assessment.
How much does a new boiler cost?
It varies with the type, size and brand of boiler and how straightforward the installation is. The most accurate way to find out is a free, no-obligation quote based on your home.
Will a new boiler lower my bills?
Replacing an old, inefficient boiler with a modern, high-efficiency one can noticeably reduce your heating bills, because far less fuel is wasted.
How long does installation take?
A straightforward boiler swap is usually completed within a day. Changing the type of boiler or its location can take a little longer. We confirm the timescale before any work begins.
Are your engineers Gas Safe registered?
Yes. Our heating engineers are fully qualified and Gas Safe registered, so your installation is carried out safely and to the required standards.
Do you register the boiler for me?
Yes. We register your new boiler and handle the paperwork on your behalf, so your warranty is in place with nothing complicated for you to sort out.
Should I consider a heat pump instead?
For some homes an air source heat pump can be a greener, efficient alternative to a boiler. It is not right for every property, so we are happy to talk you through both options and help you decide what suits you best.
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Last reviewed: July 2026 · Reviewed by: Warmr Heating Team