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At City Plumbing, we offer a wide range of high-quality boilers to suit every home or commercial property. Whether you're upgrading your heating system or replacing a faulty unit, you’ll find dependable and energy-efficient models from trusted brands like Worcester Bosch, Vaillant, Ideal, and Viessmann.
Reliable Heating Solutions from City Plumbing
With over 40 years of industry experience, we understand how important it is to have a reliable boiler, especially during the colder months. That’s why we provide expert advice, competitive pricing, and a wide range of boilers for every budget and property size.
From compact combi boilers ideal for smaller homes to powerful system and regular boilers suitable for larger households or commercial use, we make it easy to find the perfect fit.
Need a New Boiler?
If your current heating system is starting to let you down, it might be time to consider a new boiler. Replacing an ageing or inefficient unit could significantly reduce your energy bills, improve home comfort, and eliminate the cost and hassle of ongoing repairs.
Most leading boiler manufacturers recommend upgrading your home boiler after 10 to 15 years. While some models can last longer with regular servicing, older boilers often become less reliable and less energy-efficient over time. If you're noticing fluctuating temperatures, strange noises, rising energy costs, or frequent breakdowns, now could be the right time to buy a new boiler.
At City Plumbing, we offer a wide range of boilers for sale to suit every home and budget. Whether you're upgrading to a more energy-efficient model or replacing a faulty unit, we make it easy to find the perfect solution. Our range includes combi, system, and regular boilers from trusted brands - ensuring you’ll get quality, performance, and long-term reliability.
Shop boilers by brand >
Buy New Boilers Online or In-Store
At City Plumbing, you can buy new boilers online with free UK delivery on orders over £75, or collect in person at any of our 350+ nationwide branches. We’ve got a solution for every property type, from studio flats to large family homes and commercial sites.
Our range includes:
- Gas, electric, and oil-powered boilers
- Compact combi boilers for small homes
- System and regular boilers for larger households
- Commercial-grade boilers for businesses
Looking to buy a boiler quickly? Use our online filters to compare models by boiler price, heat output, fuel type, brand, and more.
Why Choose City Plumbing for Your Boiler?
- Over 40 years of experience supplying the trade and public
- Trusted brands and quality-assured products
- Expert advice online and in-branch
- Free UK delivery on orders over £75
- 350+ branches nationwide for convenient collection
- Thousands of 5-star reviews on Trustpilot
Whether you're a homeowner upgrading your heating system or a trade professional sourcing products for a job, City Plumbing has the boilers, parts, and support you need.
Boilers: FAQs
When do I need a new boiler?
Knowing when to replace your boiler could save you money on repairs and energy bills. Plus, installing a new boiler to your household means instantly enjoying the efficiency benefits of modern appliances.
Generally, leading manufacturers recommend replacing a boiler after around 10 to 15 years. Your boiler could last much longer if it's carefully used and properly maintained. However, if you've got a known fault with your boiler that keeps returning, it could be time for a new one.
Which boiler for sale is best for me?
The right boiler depends on your home size, water usage, and heating needs:
- Combi boilers are ideal for smaller homes with limited space.
- System boilers are great for properties with multiple bathrooms.
- Regular (heat-only) boilers suit homes with traditional heating systems.
You should think about your budget first and foremost, planning according to your needs and average usage. You'll also need to weigh up the pros and cons of choosing combi, gas or electric boilers. If you're shopping for large business premises, a commercial boiler may be the most suitable option.
Our online selection includes top-spec boilers from Ideal, Vaillant, Worcester Bosch and many more leading household names. Browse the selection online and read customer reviews to choose the most suitable boiler.
How can I change the temperature of my boiler?
Your boiler's flow temperature determines how hot the water it sends to your radiators is. You can usually adjust this on the boiler's control panel, often using buttons or a dial labelled with a radiator symbol. Check your boiler's manual for specific instructions, as models vary.
Lowering your boiler's flow temperature by a few degrees can help you save money on your heating bills. Be careful not to set it too low, however, as this can reduce the efficiency of your heating system, leaving your home feeling cold and potentially increasing the risk of condensation and damp.
Which new boilers are the most energy-efficient?
Some of the highest-rated energy-efficient boilers available at City Plumbing include:
- Worcester Bosch Greenstar range
- Ideal Esprit Eco2
- Vaillant ecoFIT Pure
- Viessmann Vitodens series
Look for models with an ErP rating of A or higher for optimal performance and reduced emissions. For households with radiators or underfloor heating systems, combi boilers typically offer the highest levels of energy efficiency. A few of our recommended new boilers for sale include:
- The Worcester Bosch Greenstar
- The Espirit Eco2 Ideal combi boiler
- The smart Vaillant EcoFit Pure
- The stylish Viessman Vitodens
How efficient is my boiler?
Check your boiler's energy label to find out how efficient it is. This will give it a rating between A and G, along with any information on the noise emitted by the boiler. The most efficient boilers will be rated A or higher.
If you're planning to sell your home soon, choosing an energy-efficient boiler could even upgrade your EPC.
Is my boiler safe?
Whether you've just bought a new gas boiler or you've been running an electric model for years, safety is paramount. Getting your boiler serviced regularly is the best way to make sure that everything's in good working order.
In the meantime, there are a few things to look out for. The following high-priority signs could indicate that something's not quite right with your boiler:
- Leaking: If your boiler is dripping water, a part has likely failed somewhere inside it. Don't try and fix it on your own. Switch off the boiler and call a Gas Safe engineer to come and investigate the issue for you.
- Noise: If your boiler is making loud noises like gurgles, whistles and bangs, there could be a problem. It's likely to be caused by debris or air building up inside the unit, but it's worth asking an engineer to check.
- No hot water: If your boiler isn't sending hot water to your taps or radiators, there could be several causes. If topping up the pressure doesn't fix it and you've checked for thermostat issues, call an engineer.
Which type of boiler should I buy?
Choosing the right boiler for your home depends on your property size, hot water needs, and available space. At City Plumbing, we stock a wide range of new boilers to suit every home and budget, including electric options.
- Combi boilers – Ideal for smaller homes or flats with limited space. They provide hot water on demand without the need for a separate cylinder.
- System boilers – Perfect for medium to large homes with multiple bathrooms. These work with a hot water cylinder to meet higher hot water demands.
- Heat-only (regular) boilers – A great choice for traditional heating systems that already use a separate hot water cylinder and cold-water tank.
- Electric boilers – A compact, energy-efficient solution for homes without a gas supply or for properties seeking to reduce carbon emissions. They’re quiet, easy to install, and suitable for smaller households or well-insulated properties.
- Oil boilers – Designed for homes that aren't connected to the gas grid. Oil boilers are a powerful and reliable heating solution, typically used in rural areas. They're available as combi or regular boilers and offer excellent efficiency when properly maintained.
Still unsure which new boiler is right for your needs? Speak to a City Plumbing expert in-store or online for advice on the most efficient and cost-effective heating solution for your home.
How much are boilers?
Boiler prices in the UK can vary significantly depending on the type, brand, size, and features of the unit. On average, you can expect the cost of a new boiler to range from around £500 to over £2,500 (including VAT), not including installation.
Premium brands or models with higher outputs will naturally sit at the top end of the scale. While the initial boiler cost may seem high, a modern, energy-efficient unit can significantly reduce your energy bills over time.
At City Plumbing, we stock a wide range of boilers for sale at competitive prices—helping you buy a boiler that fits your needs and budget. Plus, we offer free delivery on orders over £75 and a Click & Collect service at over 350 branches nationwide.
What are Boiler Packs?
City Plumbing boiler packs are bundled heating solutions that include a new boiler along with essential components needed for installation, making it easier and more cost-effective to upgrade your central heating system – find out more.
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