Boiler Installation Bristol: Get A New Boiler Or Boiler Replacement in Bristol

Finding a reliable boiler installer in Bristol can be a major headache. There are tonnes of firms to choose from, most of them are busy, and you don’t know whom to trust.

In this guide, we’ll help you make this process smoother. If you need the replacement urgently, we’ll even show you how to get an instant quote and next-day service from a reputable installer. Read on to learn more!

Boiler installation Bristol

How to get your boiler installed the next day in Bristol

The quickest way to get your new boiler quote — and next-day service — is through Heatable. The online installation company has a large network of installers in the city, so they always have enough hands to carry out urgent work.

Thanks to Heatable’s low overhead, you’ll find that its service is surprisingly affordable, and most boilers come with 0% interest for two years, nothing down, and payment plans up to 10 years out. Heatable even price-matches their competitors, so you have every incentive to shop around only to have them meet the best price.

Heatable boiler calculator

You can check out the available deals now by filling in this quick survey and getting a fixed quote on your screen. You don’t have to supply any personal information, just some details that will help Heatable determine your heating and hot water needs.

We still advise you to get quotes from all sorts of different companies but we strongly advise you to make sure one of them is from Heatable, and we suspect they may well offer you the best deal.

Get multiple quotes for your boiler installation project (if you have time)

Heatable offers a convenient and inexpensive boiler installation service, but it’s not your only option. If your boiler replacement project isn’t urgent, you should try to solicit as many quotes as possible before going through with installation. You can reach out to large, national companies, like British Gas and E.ON, or try ringing up local, Bristol-based installers. Both options have their pros and cons, and both can get you a fair installation deal.

National Installation Companies

Nationwide installation companies are the ones you tend to see advertised in the newspapers and on TV. The likes of British Gas have a network of their own engineers across the country, and some can offer fixed, online quotes. They typically provide reliable, quality service, and have round-the-clock support for any subsequent problems with the equipment. But these large companies also have high overheads (all those adverts don’t come cheap) and this means they usually pass on these costs to their customers.

Overall, we would expect a quote from a national installation company to be amongst the highest you get. However, there are occasional discounts and offers available, so it’s definitely worth your time to get an estimate.

Local Heating and Gas Installers

There are lots of small installers around Bristol, and they’ll typically get you a much better deal than their national counterparts. That said, local installers are in high demand, and you may have to wait a while for service. Keep in mind, too, that these guys won’t quote you right away — you’ll have to schedule an appointment first.

The quality of these firms’ work can also be inconsistent. Some are much better than others and you might not know until they have already begun. Word of mouth is how many of these local installation companies get their business, but make sure you hear good things from at least three or four people before committing to them.

Needless to say, be sure to ask for at least 3 quotes to get a fair idea of what the local market prices are. Better yet, start off by getting an online quote from Heatable, then use it as a yardstick when you compare other installers’ offers.

What type of boiler do you need?

First, consider which fuel you’ll use

To begin with, you need to know what type of fuel your boiler uses. There are a number of possibilities here:

  • Gas
  • LPG
  • Oil
  • Electricity
  • Renewable energy sources

Heatable new boiler form

In Bristol, most properties will be connected to mains gas. Gas is the cheapest fuel to use and also has the widest variety of cost-effective boilers to choose from, so most people will opt for this.

Then, consider the types of boiler systems

There are 4 principal boiler types:

  • Combi Boiler
  • Regular Boiler
  • System Boiler
  • Compact Boiler

If you live in a smaller home, and your family doesn’t consume too much water, getting yourself a combi boiler is the most efficient way to go. These little boilers can easily fit out of sight, and unlike their regular boiler peers, they don’t take up extra space for water storage. Best of all, they supply hot water on demand.

On the other hand, if your home is quite large, and your household uses lots of water, a regular boiler may be the better option.

System boilers are primarily used in commercial properties, while a compact boiler is really just a smaller version of the combi boiler. These are used mostly in properties where space is really at a premium.

What size boiler do you need?

Boiler size is not a question of the physical size, but rather the power capacity of your new boiler. It’s something that you need to get right, because if you don’t, you’ll either end up freezing or paying way too much for heating.

Assuming you’re going with a gas-fired combi, these are the 3 most common boiler size ranges: 

Boiler SizeRadiatorsBathroomsProperty Type
24kW-27kW10 or fewer1Apartments, 1 & 2 bed houses
28kW-34kW10-152Medium size 2-4 bed homes
35kW-42kW15-202+Larger Properties

If you want more definitive advice and don’t fancy calling out an engineer, another option is to use Heatable’s online calculator. This online form will ask you various question about your home, such as how many radiators there are and how many bathrooms you have. They will then use this information to recommend the best boilers for your property.

Bristol boiler installation & replacement: How much does it cost?

Assuming that you live in an average-sized Bristol property, use a regular amount of water, and looking for a 24kW combi, you can expect to pay around £2,000 to buy and install a new boiler. If you want to move your new boiler to another location on your property, be prepared to pay at least £350 – £750. That’s because you will need new pipework fitted, a new flue installed with associated works to either your outdoor walls or your roof, and more labour and materials costs.

The numbers above are an educated guess, based on the average market rates in Bristol. If you want a more precise quotation, contact a local installer, national company, or fill out Heatable’s quick survey and get your guaranteed quote now.

HEATABLE Worcester Bosch Greenstar i 30kW

What Extras Will You Need?

In this section, we will outline three extras which we would generally recommend most Bristolians invest in when they get a new boiler. They are likely to extend the life of your boiler and ultimately save you money:

Magnetic filter to remove sludge from your system

A magnetic filter is a component that fits in your boiler and collects up any metallic debris that is floating around in your heating system. This debris can become sludge and clog up your boiler, affecting performance or even damaging components. This filter helps to prevent that.

Scale filter to protect your new boiler from limescale buildup

Bristol is a hard water area so limescale is likely to be a big problem in your boiler. A scale filters helps to prevent limescale buildup which can damage components and prevent your boiler from working properly. It reduces repair bills, extends the life of your boiler, and is essential in Bristol.

A hot / power flush to clean the system before fitting the new boiler

If you have an older central heating system, it is likely that some sludge and limescale has already built-up. To stop this getting into your new boiler, most installers will recommend you have a hot flush or a power flush to clean it out. This is worth doing but just be aware that power flushes can damage some older heating systems, so make sure your system can cope with one before letting your engineer push ahead.

If your installer recommends other possible extras, do a bit of research to see what they are and whether they are worthwhile before agreeing. If you are still not sure, you can always leave any questions you may have for us using the comment box at the bottom of this page. We will do our best to answer any questions you have.

What kind of fuel does your boiler use?

Grab your fixed price online by 3PM, and get next-day boiler installation.

Worcester boilers installed from as little as £1,795.


If you are in the market for a replacement boiler in Bristol of the surrounding areas, this guide should have answered most of your questions.

We have advised you on what type of boiler you need, given you a steer on the size of the boiler you will want and offered some advice on extras and how much you can expect to pay.

Perhaps most importantly, we have given some advice on installers and recommended getting as many quotes as you can. In particular, we have suggested you make sure at least one of your quotes is from Heatable. (After all, they do price match!)

If you have any questions about anything we have put in this guide or anything you think we have missed out, feel free to leave them in the comment box below. We always respond to all comments and questions from all our readers.

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