New Boiler Prices

From £25 a month including installation

It is a bit of a minefield out there trying to research the different boilers that are available to you. Do you opt for a local plumber who may have a cheaper product but fails on the aftercare service and higher repair bills when your in need of some assistance. Or do you opt for the larger corporate boiler company and end up paying far more for than you really need to.

A boiler system is one of the most important appliances in any UK home, and for good reason. After all, only a boiler system can keep the internal temperature of your home at a comfortable level so that the residents don’t have to freeze to death, especially during those long cold months.

A boiler may need to be replaced for many reasons. When the time comes to finally replace your boiler there are a few things that you will need to consider.

Boilers are one of those things in life that we take completely for granted.

In the UK, heating accounts for more than half of what homeowners have to pay in energy bills each year. Therefore, it only makes sense that you would want to a boiler replacement that is efficient to reduce the high costs of energy.

We only work with leading brands of boilers in the U.K which are:

With over 90% efficiency, Worcester boilers will help to reduce your energy bills and your carbon footprint. They can enhance heating and hot water performance in all sizes of homes, including those with two or more bathrooms, and where mains water pressure is low. Small in stature The compact size and smart design of Greenstar regular boilers means that they will look great in any home, with several options readily fitting into a standard kitchen cupboard. If you’re looking to upgrade your regular boiler system to an ultra efficient A-Rated boiler then Worcester is a great choice.

One of the reasons for choosing Viessmann boilers for your home the next time you’re thinking of a boiler replacement is because the brand offers the latest boiler designs, that are both resourceful and efficient. The Condensing technology used in the manufacturing of a Viessmann boiler system ensures that homeowners will be able to make significant savings on their utility bills.

One of the reasons for this is because the condensing technology used in Viessman boiler systems do not just utilize the heat generated from the combustion, but also the water vapour, enabling the boiler to produce more heat than regular boiler systems. This results to no loss of energy, making the boiler more efficient. Condensing boilers utilize high-performance heat exchangers that cool the flue gases before it has a chance to escape. This is done by condensing the water vapour which is present in the gasses, releasing additional heat which is also used in the heating system.

Vaillant are designed in Germany, where overall heating efficiency, reliability, quietness, and long term performance were the driving factors of design.

Vaillant boilers are becoming an increasingly popular boiler manufacturer in the UK; and with good reason. Quiet Mark which is a non-profit organisation formed by the Noise Abatement Society awarded this boiler the Quiet Mark seal of approval because of how quietly it runs. This is perfect if you need to have it installed close to a bedroom or other noise sensitive spot. They are also surprisingly compact boilers making it easier to choose a place to install.

We work with Ideal to bring you more options and diversity with our wide range of boilers.

Not only do Ideal boilers go through 200 quality checks before they leave their factory, but Hassle Free Boilers have market leading 7 year warranty on the Logic+ range. Compact in size and fully modulating down to as low as 4.8kW, the Logic+ provides excellent energy savings making it the perfect choice for new or replacement installations.

Grant has been honoured with dozens of awards through the years, relating to its superior customer service and product innovation, and for its commitment to the UK heating industry. Grant was the recipient of the 2016 Architects Choice Awards Best Renewable Product for its Grant VortexAir oil boiler/ASHP hybrid, a testament to its superior quality, design and built when it comes to its oil-fired boiler range.

From the award-winning oil-fired condensing boilers to the latest range of renewable heating systems, Grant Engineering is at the forefront of the heating industry in the UK, where its reputation and quality is second to none.

What to look out for?

  • How reliable is that model going to be over the next 15 years?
  • What is the efficiency rating of that particular boiler?
  • Can I add digital thermostat controls like Nest?
  • Will this new boiler be quieter than my existing or old boiler?
  • Is this new boiler going to slot into where my existing boiler is?
  • What will the installation cost be for a new boiler?

So how does a boiler actually work?

A modern boiler is a sophisticated machine, needing several internal components to function safely, such as a Pressure Release Valve (PRV) which regulates water pressure, an expansion vessel to accommodate increased pressure due to the water heating process and a fan to discharge waste gases caused by the heating process through a flue.

In addition, a number of devices external to your boiler can also be very useful, such as a main thermostat that monitors room temperature to switch your boiler on and off as the room falls and rises in temperature. You can also use a time switch to turn your boiler on and off (depending on room temperature) at certain times of the day, such as when you wake up or get home from work.

If you fit Thermostatic Radiator Valves (TRVs) to your radiators, you can even control the temperature of an individual radiator in a particular room so that it is hotter or colder than the rest of the house.

The heat-only or open-vent boiler is also known as a condensing ‘conventional’ boiler or ‘boiler. It works by carrying the hot water to the central heating system, hot water cylinder and radiators. Conventional boilers are operated with programmable controls.


  • Multiple hot water taps can be run at the same time. There is no loss of pressure for multiple hot water users.
  • Requires extra room for both a hot water cylinder and cold water tank.
  • Can also install an electrical immersion heater next to the hot water cylinder as a back-up.
  • Good choice for a larger home that has more than one bathroom.


  • Generally larger so takes up extra space.
  • Once the hot water is used up you will have to wait for the tank to refill (or use an additional immersion heater). The size of the cylinder you choose will depend on how much hot water you expect to use.
  • Requires programmable controls to switch your heating and hot water on / off at certain times of the day.

The combination or ‘combi’ boiler takes its name from its dual function: it’s a high-efficiency water heater and a central heating boiler combined in one compact unit. A combi boiler provides heating and hot water directly from the boiler, which means almost immediate hot water.


  • On-demand limitless heating and hot water provided directly from the boiler
  • Does not require a hot water cylinder or cold water tank.
  • Generally smaller so takes up less space.
  • Has fewer elements and is faster to install.
  • Does not require programmable controls to switch your heating and hot water on / off at certain times of the day.
  • A good choice for a smaller home with only one bathroom.


  • In larger households (with more than one or two bathrooms) there is always the risk of loss of water pressure if more than one person is running the hot tap at a time.

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The system boiler is very similar to a heat-only or conventional boiler. It directly heats your central heating system, producing hot water stored in the hot water cylinder – which in turn is usually tucked away inside an airing cupboard. Like a combi boiler, it’s little more compact than a conventional boiler, thanks to its mainly pre-built components.


  • Multiple hot water taps can be run at the same time. There is no loss of pressure for multiple hot water users.
  • Easier to install because many components are pre-built in, removing the need for an expansion tank or supply feed.
  • Can also install an electrical immersion heater next to the hot water cylinder as a back-up.
  • Does not require a cold water tank if you have a pressurised mains-supplied hot water cylinder, freeing up a little extra space in the loft.


  • Generally larger so takes up extra space.
  • Requires programmable controls to switch your heating and hot water on / off at certain times of the day.

Learn more