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NEW BOILER INSTALLATIONS

The right boiler for your home – not just the biggest one.

Nobody looks forward to replacing a boiler – but cold showers only get you so far. A new boiler is a significant investment, so we match it to your home, explain every option and give you a fixed price before any work starts.

A range of boilers to suit every budget
5-year to 10-year+ manufacturer guarantees
Free site visit and fixed quote
Wojtek from PlumbJax installing a new boiler, with neatly run copper pipework and a magnetic system filter
Wojtek fitting a new boiler – neat copper pipework and a magnetic filter to protect it.
RIGHT-SIZED, NOT OVERSIZED

Bigger isn’t better

Oversized boilers are a big problem in the UK. Too often, a bigger boiler goes in every time one is replaced – usually because the installer lacks the confidence or experience to size it properly. At PlumbJax we understand the problems oversizing causes, and we match your new boiler to your home and the way you use your heating and hot water.

An oversized boiler
Switches on and off constantly instead of running steadily
Runs less efficiently, so you pay more for your gas
More wear on parts and a higher price to buy
A PlumbJax right-sized boiler
Matched to your home, radiators and hot water needs
Runs steadily and efficiently – kinder to your bills
You only pay for the output you actually need
BRANDS WE LOVE

Boilers we trust in our own customers’ homes

We’re trained to install all five, so we’ll recommend the one that genuinely suits your home and budget – whichever brand that turns out to be.

Worcester Bosch logo
Worcester Bosch
Built in Worcester and backed by the Bosch group. Reliable, easy to live with and well supported – a favourite with UK homeowners.
Up to 12 years on the 8000 series
Vaillant logo
Vaillant
German engineering with a long heritage. Quiet, efficient and beautifully built – a great all-rounder for most homes.
10 years on most models, 15 on premium
Viessmann logo
Viessmann
Premium German-engineered boilers with excellent build quality. Ideal when you want the very best for your home.
12 years
Glow-worm logo
Glow-worm
British-made in Derbyshire. Excellent value without cutting corners – our go-to when budget matters.
Up to 15 years on selected models
Ideal logo
Ideal
A British manufacturer from Hull with over a century of heating heritage. Dependable boilers at sensible prices.
Up to 12 years
BOILERS TO SUIT EVERY BUDGET

Peace of mind, built in

Every boiler we fit comes with a full manufacturer guarantee. We’ll explain the options side by side in your quote.

ECONOMY RANGE
5 years
Our most economical boilers come with a full 5-year manufacturer guarantee.
PREMIUM RANGE
10 years+
All our premium boilers come with a minimum 10-year manufacturer guarantee.
EXTENDED OPTIONS
up to 15
15 years on premium Vaillant, 12 years on Viessmann and Worcester Bosch 8000 series, up to 12 on Ideal, and up to 15 years on selected Glow-worm models as an optional upgrade.
All manufacturers require an annual service to keep the guarantee valid.
Boiler service £126 inc VAT
HOW MUCH DOES A NEW BOILER COST?

An honest guide to boiler prices

Every home is different, so every boiler swap is too. That’s why we always survey first – to match the right boiler to your house and give you a fixed price with no surprises.

New boilers from£2,500inc VAT, for a straightforward like-for-like swap.
Most boiler swaps£3,500–£5,000inc VAT, depending on your home and the boiler you choose.
Your exact priceFree surveyand a fixed written quote with your options side by side.
What affects the price?
The size of your homeMore bedrooms and bathrooms need more heat and hot water, so a bigger output boiler.
The type of boilerCombi, system or regular – and whether you’re converting from one to another.
Where it goesSwapping in the same spot costs less than moving the boiler to a new room or the loft.
Flue and gas supplySome homes need a new flue route or a larger gas pipe to meet today’s regulations.
Your existing systemOlder systems may need cleaning, a magnetic filter or new valves so the new boiler lasts.
Brand, controls and warrantyFrom our economical range with 5 years’ warranty to premium boilers with 10 years or more.
Book my free boiler survey
HOW IT WORKS

From first visit to warm home

1
Site visit
We look at your home, your existing system and how you use your heating and hot water, so your new boiler is sized correctly.
2
Quote with every option explained
A fixed price with your options side by side – from economy to premium – so you can choose what suits your home and budget.
3
Order placed
Once you’re happy, we order your boiler and book in your installation date.
4
Installation
Anything from one full day to a few days, depending on the job. Floors protected and everything left tidy.
5
Registered and handed over
We register your installation with the manufacturer, local building control and Gas Safe – and show you how your new controls work.
whatsapp logoBook a site visit on WhatsApp
PlumbJax engineer talking a customer through her boiler options on a tablet

Time for a new boiler?

Book a free site visit and get a fixed quote with every option explained.

PlumbJax van parked outside Festival Place, Basingstoke

Areas we cover

Local to Basingstoke and Alton

Our core area – every service, every day. Just tap your town to find out more.

We also cover

Can’t see your area? Message us and we’ll let you know if we can help.