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Cost of Fitting a New Boiler Guide; How Much Can You Expect To Pay For New Boiler Installation?

Welcome to our quick-fire guide covering boiler fitting and installation costs. In this guide, we’ll not talk about the overall cost of boiler replacement (although we have a guide to full boiler replacement costs here), but labour only.

Boiler fitting cost

Labour Quotes For A New Boiler Installation

If you’ve already started getting boiler replacement quotes, there’s a good chance that not one is the same.

Different Boilers = Different Costs

Different boiler fitters will quote different prices for installation. Some of that difference is going to be the type of boiler they choose to fit (for instance, a low-end boiler could be £500, whereas another boiler might be £1,000 or more).

Other Cost Factors For A Boiler Install

But, other differences in the cost to fit a new boiler are going to come down to the cost of materials, and what materials are actually used in the boiler installation.

As an example, not ALL boiler fitters will install a magnetic system filter. These filters stop your boiler from getting clogged with heating sludge and are a worthy investment. Depending on the filter and including the labour cost of installation, a quote with a filter compared with one without, could be £200-250 more.

How Much Does It Cost To Fit A New Boiler (Labour Only)?

Expect to pay labour costs of £350-750 for boiler fitting. This includes copper pipe and fittings for a basic installation in the same location, but doesn’t include a filter, or the boiler itself. There may be additional expense involved if you wish to move your boiler, and we’ve explained the expected cost to move a boiler here.

On average, we’d expect the price for fitting a boiler to make up around £500 worth of a quotation. The other costs associated with the quote might be the boiler, flue, magnetic system filter, limescale filter and more.

Where To Get Prices For A New Boiler

How much to fit a boiler

To get a fixed price for all parts and labour associated with a boiler installation, you can use this boiler price calculator on Heatable’s website. Heatable currently run a promo so their boiler prices are some of the most competitive in the UK.

How Does Combi Boiler Fitting Cost For Gas, Oil And LPG Compare?

Typically, we’d not expect the cost to replace a combi boiler to change based on fuel type. The price for a new combi boiler installation is more likely to differ based on the fitter you use, rather than the fuel type your boiler uses.

However, it’s worth bearing in mind that you’ll need a Gas Safe engineer for the installation of gas boilers, a Gas Safe engineer with Gas Safe LPG accreddiation for LPG boilers, and an OFTEC engineer for oil boiler installations.

What is worth mentioning, is that larger oil boilers can be extremely heavy. A typical gas and LPG combi boiler might be as little as 42kg.

However, oil boilers can be 100kg and beyond. If you’ve got a large oil boiler, especially if it’s in a hard to access installation area, that quickly makes a 1-person job, a two person job.

It’s likely your boiler fitter is going to account for the additional cost of having a 2nd pair of hands to help them move and fit the boiler.

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.

How Combi Boiler Fitting Cost Is Determined

Obviously, there’s a big difference between £350 for labour, and a £750 boiler replacement. So, why do costs for boiler installation vary so much?

Boiler Weight

As we’ve already mentioned, a heavy boiler is going to mean that the boiler replacement is a two person job, and that’s going to increase costs. Typically, most gas and LPG boiler installations in residential properties can be done by one person.

For oil boilers, you should expect two boiler fitters to complete the install, increasing overall labour costs.

Complexity Of The Boiler Replacement

Some boiler replacements are straight swaps. That means a few connections are loosened, the old boiler is removed, and the new boiler slots in its place. That means your boiler installer can get right to testing the boiler, ready to sign it off as Gas Safe.

Not all boiler installations are this simple. If your new boiler isn’t the same as your old one, the engineer might need to change pipework and re-drill holes to mount the boiler. This all takes time, and that’s going to add to the cost of fitting your new boiler.

Additional Installs

There are a few things that might have been included in your installation quote, that are going to increase overall costs for your new boiler. If your install quote includes a cylinder, magnetic boiler filter, or limescale filter, these all need to be fitted. And the cost of fitting these boiler parts, can be into the hundreds, increasing your overall installation cost.

Additional Works

A boiler fitter needs to leave your property in the state they found it in. If the install is complex, they might have needed to drill a new core hole for a flue, remove floorboards, or chip away plaster.

All of these things take time to patch up, and all that time, means more labour cost for installing your new boiler.

Boiler Location

When looking at new boiler cost estimates online, it’s also worth taking into consideration where you live. Typical labour rates for boiler install in central London, could be as much as 2x that of the price of labour in the North. And, that’s going to directly impact the quote you get for fitting a boiler.

Getting The Best Prices For Combi Boiler Replacement

Boiler fitting by Heatable

There are plenty of ways to find cheap combi boiler replacement companies. However, there are some boiler installation providers that are better than others.

Personally, I’d always do one of two things before getting a new boiler installed.

Get A Quote Online

The first, is check out an fixed price online boiler installer, like Heatable. You’ll find a Worcester 25i boiler installation is £1,649 — that’s £300-400 cheaper than a lot of other install companies will charge.

Have A Home Visit

But, if you’d prefer an on-site visit to spec your property, and then get up to 3 quotes from local installers, you can fill out this form and do that for free.

What’s Next? Still Not Sure Whether to Replace Your Boiler?

Thanks for reading our quick-fire guide to boiler fitting costs (labour only).

Got questions about the best boiler brands to buy, which boiler fitter to use, or whether your install quote is a rip off? Fire away and leave a comment below; we’ll get back to you as soon as we can.


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