Free Boiler Check Tells You Exactly Which Gas Boiler You Need in 2026!
Quick Boiler Check: get an instant report recommending the right boiler for your home, matched to your heating patterns, insulation and radiators. See your expected monthly and lifetime running costs, and receive a free, no-obligation quote from a Gas Safe installer so you know exactly what you'll pay and why. – completely free of charge.
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Looking for the right gas boiler?
Choosing a new gas boiler
can be confusing with so many
options and prices on the market. Maybe you've already received a
quote, but you're unsure if it's the
best deal.
That's where our Boiler Checker comes in.
In just a few minutes,
you'll discover which boiler is best suited to your home and heating needs — plus receive instant,
tailored quotes from trusted installers.
- Compare gas boiler prices
- Get personalised boiler recommendations
- Free, no-obligation advice tailored to your home
What should you consider?
When choosing a new gas boiler, it's not just about the price. Several key factors determine which boiler is right for you. Our Boiler Checker makes comparing these quick and easy.
- Output (kW): How much heating power your home needs
- Efficiency rating: Higher efficiency means lower gas bills
- Running costs: Understand long-term fuel costs, not just the upfront price
Do the Boiler Check to find the best boiler for your home and budget.
We solve your gas boiler concerns
Discover how we remove the most common obstacles when choosing and installing your gas boiler.
You're worried about the costs and energy efficiency of a gas boiler
The upfront investment for a new gas boiler can feel steep. Many homeowners want reassurance that they're not just throwing money at a short-term fix, but getting long-term value too. That's why our tool gives you clear insight into estimated running costs, payback period and efficiency — so you can make a smart, cost-conscious choice.
"Thanks to the Boiler Analysis, I now know exactly what my system costs to run annually. I wasn't expecting that level of detail, to be honest. The tool really helped me understand which boilers are actually efficient, not just on paper, but in the long run."
Mohammed Williams
Gas boiler owner in London
"I had my doubts about which type of boiler would be best for my home. Honestly, I was dreading being sold something I didn't need. But the analysis gave me surprisingly useful insight. It even asked about how many people live here, which no installer had asked before."
Sophie Peters
Homeowner in Manchester
You're unsure about the right type of gas boiler for your home
Every home is different. What works for a two-person flat might not be right for a family of five in a detached house. Insulation, hot water usage and radiator types all make a difference. Our tool analyses your home setup to recommend the best boiler for your needs – without the technical jargon.
You're looking for a qualified installer with experience
A good boiler is only as good as the person installing it. We connect you with Gas Safe registered engineers who don't just install the right boiler, but also explain how to use it, do it cleanly, and show up when they say they will. No hidden extras. No pushy upsells.
"The installation of my new condensing boiler was done really professionally. The engineer explained everything clearly and took the time to answer my questions, even though he was running a bit behind that day. The system's been running perfectly since, and the place was left spotless."
Aisha Rahman
Gas boiler user in Birmingham
Frequently Asked Questions about Gas Boilers
Find answers to common questions about gas boilers here.
Who are we?
We are BoilerChecker, an independent organisation that helps consumers find the best gas boiler for their home or business.
What's the difference between a condensing boiler and a conventional boiler?
A condensing boiler is more energy efficient because it reuses heat from the flue gases. This gives a condensing boiler an efficiency of up to 95%, while a conventional boiler achieves maximum 80%. Condensing boilers are more expensive to purchase, but pay for themselves through lower energy costs.
What about the energy consumption of a gas boiler?
The energy consumption of a gas boiler depends on various factors, such as the type of boiler, the size of your home, insulation, and your heating behaviour. Modern condensing boilers are much more energy efficient than older models. Look for the efficiency rating when choosing a new boiler.
How often should a gas boiler be serviced?
For optimal operation and safety, a gas boiler should be serviced annually by a Gas Safe registered engineer. This is not only legally required in the UK, but also ensures longer lifespan, lower energy consumption, and prevents breakdowns. During servicing, important components are checked and cleaned.
What's the average lifespan of a gas boiler?
A well-maintained gas boiler typically lasts 15 to 20 years. The exact lifespan depends on various factors such as the type of boiler, installation quality, regular maintenance, and intensity of use. Modern condensing boilers are often more durable and energy efficient than older models.
Are there grants available for a new gas boiler?
In the UK, there are various grants and schemes available for energy-efficient gas boilers, especially through the ECO scheme for eligible households. These grants can vary by region and circumstances. We recommend checking current grant availability with your local authority or energy supplier.
What capacity gas boiler do I need?
The required capacity of your gas boiler depends on various factors such as the size of your home, insulation, number of radiators, and hot water needs. A boiler that's too small can't adequately heat your house, while one that's too large wastes energy unnecessarily. Our boiler check helps you determine the right capacity.
What are the benefits of a combination boiler?
A combination (combi) boiler provides both central heating and hot water on demand without needing a separate hot water cylinder. This saves space, is more efficient for smaller homes, and provides instant hot water. However, it may not be suitable for homes with high hot water demand or multiple bathrooms.
Discover why 3,776+ homeowners in the UK have chosen BoilerChecker
"We received genuinely helpful advice about our new gas boiler. The expert was clear and patient, even when I didn't fully understand the difference between the boiler types. Installation went smoothly and finished just a few hours later than planned — but they kept us updated throughout."
John Williams
Leeds
"Boiler Checker really helped me figure out what boiler we needed. I'd already had two quotes, but neither explained why they were recommending a certain model. This tool did. The installer they connected us with was professional and friendly — even gave tips on how to keep the system efficient."
Sarah Thompson
Bristol
"Our new condensing boiler was installed without any issues. There was some back-and-forth about the flue placement beforehand, but they handled it well. The savings on our energy bill have been even better than what we expected, especially during winter. Very happy overall."
Michael Clarke
Glasgow
Want the best gas boiler for your home?
With our professional gas boiler analysis, discover the most energy-efficient heating solution for your home. Receive free and completely no-obligation personalised quotes from Gas Safe registered engineers in your area.