BOILER ADVICE

BOILER ADVICE

What a new boiler
actually costs.

What a new boiler
actually costs.

What a new boiler
actually costs.

Fitted prices, what is in them, what pushes them up, and the three lines to look for in anyone’s quote before you sign it.

Fitted prices, what is in them, what pushes them up, and the three lines to look for in anyone’s quote before you sign it.

Fitted prices, what is in them, what pushes them up, and the three lines to look for in anyone’s quote before you sign it.

5.0from 213 Google reviews
Gas Safe RegisterGas Safe registeredEvery engineer on the job
Approved InstallerExtended manufacturer warranties

THE SHORT ANSWER

A straight combi swap in a three-bedroom house is £1,995 to £2,620 fitted, VAT included.

A straight combi swap in a three-bedroom house is £1,995 to £2,620 fitted, VAT included.

A straight combi swap in a three-bedroom house is £1,995 to £2,620 fitted, VAT included.

That range covers the four boilers we fit, from the Baxi 800 at £1,995 to the Worcester Greenstar 8000 at £2,620. It assumes the new boiler goes where the old one was and the pipework is sound. Moving the boiler, going from a back boiler or an old gravity system, or changing from a system boiler to a combi all cost more, and we tell you that before we quote rather than after we start.

That range covers the four boilers we fit, from the Baxi 800 at £1,995 to the Worcester Greenstar 8000 at £2,620. It assumes the new boiler goes where the old one was and the pipework is sound. Moving the boiler, going from a back boiler or an old gravity system, or changing from a system boiler to a combi all cost more, and we tell you that before we quote rather than after we start.

WHAT IS IN THE NUMBER

What the price includes, and what it does not.

What the price includes, and what it does not.

What the price includes, and what it does not.

The commonest reason two quotes look thousands apart is that one of them is not quoting the same job. Here is the line-by-line.

Always included

Always included

In every price we give

The boiler

Your chosen model, new, with the manufacturer warranty

The fit

Labour, removal and disposal of the old boiler

Standard kit

Flue, standard fittings, and the controls you have now

System flush

So the new boiler is not working against old debris

Magnetic filter

Required by most manufacturers for the full warranty

VAT and registration

VAT included, warranty registered on the day

Costs extra

Costs extra

Told to you before we quote

Moving the boiler

New flue, new pipework runs, usually a second day

Back boiler removal

Fireplace work and a full system rethink

System to combi

Removing tanks and cylinder, repiping, decorating after

Pipework upgrades

Where existing gas or water pipe is undersized

Powerflush

Only where the system is genuinely dirty, not as standard

Access work

Scaffolding for a flue that cannot be reached safely

IF IT IS PAST SAVING

Sometimes a service tells you the boiler is on borrowed time.

If that is where yours is, you will get told straight rather than sold to. These are the four we fit, all fully fitted, VAT included, with a 10 year warranty.

Most popular

Baxi 800

Best value, most homes

Fitted, from

£1,995

Fully fitted, VAT included

UK-built compact unit

Fits in kitchen cupboards

Quiet operation

10-year warranty

Pick this boiler

Ideal Logic Max

Best British-built option

Fitted, from

£2,200

Fully fitted, VAT included

Hull-built, strong UK warranty

Easy-service design

Good for hard-water areas

10-year warranty

Pick this boiler

Vaillant ecoFIT pure

Quietest in the range

Fitted, from

£2,410

Fully fitted, VAT included

German engineering

Lowest noise rating

Sleek compact design

10-year warranty

Pick this boiler

Worcester 8000

Premium UK brand

Fitted, from

£2,620

Fully fitted, VAT included

Household-name UK brand

Stainless-steel heat exchanger

Premium build quality

10-year warranty

Pick this boiler

READING A QUOTE

Three things to check before you sign anything.

Three things to check before you sign anything.

Three things to check before you sign anything.

1

Is it actually fully fitted, VAT included?

Is it actually fully fitted, VAT included?

Some quotes are boiler-and-labour with the extras listed separately, so the number you compare is not the number you pay. Ours includes the boiler, the fit, the standard kit, the magnetic filter, the system flush and the VAT. Ask for the all-in figure and compare those.

2

What is happening to the existing system?

What is happening to the existing system?

A new boiler on an unflushed system is the most common cause of an early failure and a refused warranty claim. If a quote does not mention flushing the system and fitting a filter, it is cheaper for a reason.

3

Who registers the warranty, and when?

Who registers the warranty, and when?

A 10 year warranty only exists once somebody registers it with the manufacturer. We do it on the day. After that it stays valid only with an annual service by a Gas Safe registered engineer.

WHICH JOB IS YOURS

Which of these is your house?

Which of these is your house?

Which of these is your house?

Same spot, combi to combi

From £1,995, one day.

From £1,995, one day.

From £1,995, one day.

The most common job we do. The new boiler goes where the old one was, the existing pipework is sound, and you are warm again the same evening. If this is you, the price on this site is the price.

The most common job we do. The new boiler goes where the old one was, the existing pipework is sound, and you are warm again the same evening. If this is you, the price on this site is the price.

Same spot, but the pipework needs work

From £1,995 plus the pipework, one day.

From £1,995 plus the pipework, one day.

From £1,995 plus the pipework, one day.

Older properties often have gas pipe that was fine for the old boiler and is undersized for the new one. It is not a big job, but it is not free either, and we would rather tell you on the quote than on the day.

Older properties often have gas pipe that was fine for the old boiler and is undersized for the new one. It is not a big job, but it is not free either, and we would rather tell you on the quote than on the day.

Coming off a back boiler

Two days, and more than a straight swap.

Two days, and more than a straight swap.

Two days, and more than a straight swap.

The boiler comes out of the fireplace, the flue changes, the system is repiped and you get the chimney breast back. It is the biggest change of the four and the one people are most pleased with afterwards.

The boiler comes out of the fireplace, the flue changes, the system is repiped and you get the chimney breast back. It is the biggest change of the four and the one people are most pleased with afterwards.

System boiler and cylinder to a combi

Two days, and it depends on the house.

Two days, and it depends on the house.

Two days, and it depends on the house.

You lose the tanks in the loft and the cylinder in the airing cupboard, which is space back. But it only makes sense if your hot water demand suits a combi. In a house with two bathrooms and four people, we may well tell you to stay as you are.

You lose the tanks in the loft and the cylinder in the airing cupboard, which is space back. But it only makes sense if your hot water demand suits a combi. In a house with two bathrooms and four people, we may well tell you to stay as you are.

COMMON QUESTIONS

Questions we get asked.

Questions we get asked.

Questions we get asked.

How much is a new boiler in Bridgend?

What makes a boiler installation cost more?

Is the price fixed or an estimate?

Do you charge for the quote?

How long does an installation take?

Do you take payment up front?

Want a fixed price for your house?

Send a photo of the current boiler and your postcode and we will come back with a fixed, fully fitted figure. No visit needed in most cases.

BOILER SERVICING

BOILER SERVICING

GAS SAFETY (CP12)

GAS SAFETY (CP12)

HEATING & PLUMBING

HEATING & PLUMBING

LANDLORD PACKAGES

LANDLORD PACKAGES

GOT A PLUMBING OR HEATING JOB IN BRIDGEND?

LMB Plumbing & Heating

Gas Safe registered plumbing and heating across Bridgend, the Vale and Cardiff. Rated 5.0 from 213 Google reviews.

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© 2026 LMB Plumbing & Heating Limited. Made by BetterWays

LMB Plumbing & Heating

Gas Safe registered plumbing and heating across Bridgend, the Vale and Cardiff. Rated 5.0 from 213 Google reviews.

Tell us what needs sorting

© 2026 LMB Plumbing & Heating Limited. Made by BetterWays

LMB Plumbing & Heating

Gas Safe registered plumbing and heating across Bridgend, the Vale and Cardiff. Rated 5.0 from 213 Google reviews.

Tell us what needs sorting

© 2026 LMB Plumbing & Heating Limited. Made by BetterWays