Combi Boiler Installation

Looking to install a new combi boiler? We can help.

  • Instant hot water
  • Compact sizes
  • No need for a tank or cylinder
  • Gas and oil combi boilers

Receive an instant quote by answering a few quick questions about your requirements. We do not ask for personal contact information at this stage.

New Combi Boiler Benefits

A combi boiler (or combination boiler) heats water instantly when you turn on the tap, so?you do not need a storage cylinder or tank in the attic or airing cupboard. Since its instantaneous, combi boilers are a lot more cost-effective and energy efficient than a standard boiler which stores hot water (some of which may go to waste if it is not used).
Additionally, hot water is delivered at mains pressure, which could mean a powerful shower without needing a pump.

More Storage

Combi boilers don’t require a tank or cylinder, so that’s more space in your cupboards or loft for handy storage space.

No Loft Pipes

Pipes are more likely to freeze if they are in your loft. Combi boilers are placed in a cupboard in your home so your loft is clear of pipework.

Instant Hot Water

Combi boilers heat water instantly, which means there’s no waiting for your shower to heat up and no chance of running out of hot water half way!

Compact in Size

Combi boilers are small in size so are great for flats and small houses. For larger houses larger combi boilers are available with more power.

What is the best combi boiler?

Here at Synergi we recommend the Greenstar boiler series from Worcester Bosch. For the 10th year in a row these boilers have won a Which? Best buy award, making them the very best on the market. The Greenstar range beat its competitors where it matters -reliability, quality, customer reviews and recommendation.

A Best Buy boiler will last longer before it needs costly repairs, and it will need fewer of them. Which? recommend Worcester Bosch as a ‘very safe bet’. They also come with a 10-12 year guarantee. Reliability is the single most important consideration when buying a new boiler and Worcester Bosch has it in spades. From the Which? Best Boiler Brands Report 2019.

Within the Worcester Bosch Greenstar range is the most popular i and the modern and stylish Lifestyle boiler. The latter is a brilliant option if you want a nice-looking boiler that is a stunning design feature and won’t be hidden behind a cupboard.

We do offer some other brilliant brands, such as the budget brand Ideal. We’ll guide you through your options so you can make the best, informed decision.

Combi Boiler Installation

At Synergi we offer you a complete package. Let us take the stress out of finding your
new combi boiler.

Step 1

Call us for a free, no obligation home inspection. We’ll guide you through the best options for your home and give you a good range of combi boiler options to choose from. Our quotes are a fixed price – you will never have to pay more.

Step 2

We’ll leave you with our quote pack so you can read it at your leisure and make a decision in your own time.

We highly recommend doing this over a cuppa!

Step 3

If you’d like to accept your new combi boiler quote, we’ll ask you to choose a
date that suits you and your family. We can normally install your new combi boiler as soon as 48 hours from accepting our fixed price quote.

Step 4

On the date you have specified we will install the combination boiler you have chosen.

When this is completed you will be shown how to operate your brand new boiler.

Step 5

Relax! We offer a 10 year peace of mind package including up to 10 year
warranty, 10 year servicing and continued access to our Synergi Home products. Giving you peace of mind and allowing you to get on with other things you really need to do.

Should I replace my regular boiler with a combi?

Benefits of switching from a conventional boiler to a combi

Amazing hot water flow for great showers!

If you’re craving the instant hot water a combi boiler can provide you may be considering swapping your conventional (also known as regular) boiler.

They’ll also provide you with more space, as you won’t need a hot water tank. Imagine what you could do with all that extra storage room.

Additionally, they are typically more efficient because they heat the hot water on demand, rather than storing it. A regular boiler usually produces hot water twice a day, regardless of if it gets used or not. As a result, you could see huge savings on your energy bill.

Finally, once you have used all the hot water a regular boiler creates it could take a while for more hot water to heat up. If you’ve ever sat round waiting for enough hot water to run a bath then a combi boiler could be perfect for you.

When might a combi boiler not be suitable?

Combi boilers work best when you don’t use lots of hot water sources at one time. For example, if you have two bathrooms and normally have two people needing a hot shower at the same time in the morning before work, a combi boiler might not be a suitable solution.

A conversion to a combi boiler from a regular boiler will be more expensive than just a straight swap. Prices start from £2,750, but we do offer 0% finance to help spread the cost with low monthly repayments. Contact us for a home survey and quote.

Is replacing a regular boiler with a combination boiler a lot of work?

Whilst you can replace your boiler at any time, it usually makes sense if you are planning major work or a refurbishment to minimise any upheaval for things like new pipes or radiators. Sometimes we might have to relocate the boiler position too.

If you’re unsure about whether it is the right time to replace your boiler for a combi, give us a ring and we’ll guide you through your options.

Top tip: if you are planning a refurbishment, take the time to consider any additional insulation you can put in to help save even more money on your energy bills.

How much does a new combi boiler cost?

It depends on whether you need gas or oil, but combi boiler installations start from £1750 for a budget option and £1950 for an award-winning Worcester Bosch boiler.

We offer 0% finance to help spread the cost over low monthly repayments. Contact us for a free, no obligation quote.

Join our happy customers

“Recently had our new Worcester boiler installed by Synergi. The work was undertaken on time and without any mess!
The engineer & his apprentice were both friendly and I was happy to have them in my home.”

Sarah Price

“When you’re having freezing cold showers you really want a fast response and not only did I get a fast response I received a professional service throughout. starting with Richard arriving on my doorstep fifteen minutes later The guys who installed the new boiler were polite and tidy as they went about the work. Their customer care is second to none, well run business and they came recommended.”

Andy Guest

“We recently employed Richard to install a new boiler and couldn’t be more pleased with the efficient service we received the installation was carried out when promised and at reasonable price. Richard goes above and beyond to ensure that everything is satisfactory we wouldn’t hesitate in recommending him.”


Spread the cost of your new boiler

Example finance options, contact us for a free quote.

Up to 10 years 9.9% finance

Don’t sacrafice quality and added value, spread the cost now and secure your future benefits.

Total Amount: £1,700.00
Deposit: £500.00
Monthly Payment: £21.98
Number of payments: 120
Representative APR: 9.9%
Total amount payable (Incl. Deposit): £3,137.60
Deferral Period: 0 Months

2 years interest-free credit

Money is better in your bank than ours, utilise our interest-free credit and continue to save your money.

Total Cash Price: £2,200.00
Deposit (optional): £500.00
Total loan amount: ?1,700
Duration of loan: 24 Months
Monthly payment: £70.83
Total charge for credit: £0.00
Fixed APR (representative) x0.0%
Total amount payable: £2,200

Other Boiler Types

System Boiler

A system boiler pumps hot water to the radiators and a sealed hot water storage cylinder. Most major components of the heating and hot water system are built into the boiler, making installation easier, tidier and more efficient, and also simplifies servicing.

System boilers combine high efficiency and high performance with exceptional ‘green’ credentials.

Regular Boiler

Heat only boilers are also known as ‘regular’ or ‘conventional’ boilers. If you are replacing an old boiler and have a small expansion tank and a larger cold water storage cistern in your loft space, you probably already have a heat only boiler.

Heat only boilers are usually installed on an open vented system.?The system will usually comprise two tanks in the loft.