New combi boiler with neat copper pipework in a utility room

New boilers · Gas and LPG

New boilers in Andover

A new gas or LPG boiler, sized to your home and fitted by Dexter. See an estimated, fitted price online before anyone visits.

Get my boiler price 07774 319391

5.0 on Google from 63 reviews · Gas Safe and OFTEC registered

How much is a new boiler in Andover?

A new gas or LPG combi boiler from DWM starts from £1,995, fitted and including VAT. The exact price depends on the boiler you choose, its size and any changes to the pipework or flue. Answer a few questions in the price tool and you see an estimated price straight away.

Call 07774 319391 or WhatsApp Dexter.

Price

From £1,995 fitted, including VAT

Gas and LPG boilers are the same price. The price tool shows all three boilers at the right size for your home.

Get my boiler price

What affects the price

The boiler you choose and its output
Moving the boiler to a new position
Converting from a system or tank setup to a combi
Removing an old back boiler
Extras such as a smart thermostat or new radiators

How long it takes. A like for like boiler swap is usually completed in a day or two. A conversion or a move takes longer, and Dexter confirms the timing with your price.

Worcester Bosch 4000 30kW combi, finished, a DWM job in the Andover area — Worcester Bosch 4000 30kW combi, finished

About this job

DWM Plumbing, Heating & Cooling Ltd fits new gas and LPG boilers across Andover and the surrounding villages. Dexter Whittaker-McGreal prices the job, fits the boiler himself and registers the manufacturer warranty for you, so you deal with the same Gas Safe registered engineer from the first question to the paperwork.

Most homes are best served by a combi boiler, which heats water on demand and frees up the space taken by a cylinder and loft tanks. Homes with two or more bathrooms in regular use, or with low mains water pressure, can be better on a system boiler with an unvented cylinder. Dexter looks at your hot water use and the size of the house before recommending a model, rather than fitting the largest boiler on the van.

The three boilers DWM recommends are the Ideal Logic Max Combi2, the Vaillant ecoTEC plus and the Worcester Bosch Greenstar range. Dexter fits every major brand, so you can ask for Baxi, Main, Glow-worm, Viessmann or ATAG instead.

Combi boiler in a kitchen with the DWM handover pack, a DWM job in the Andover area — Combi boiler in a kitchen with the DWM handover pack

What is included in every boiler price

Removal and recycling of your old boiler
Gas Safe installation by Dexter
Chemical system flush
Magnetic system filter
Programmable room thermostat
Inhibitor (system protection)
Flue kit
Carbon monoxide alarm
Manufacturer warranty registered for you
Building Control certificate

Signs it is time for a new boiler

Breakdowns are becoming regular, or parts are no longer available
The boiler is more than 10 to 15 years old and your gas bills keep rising
Radiators take a long time to warm up, or hot water runs cold
A Gas Safe engineer has marked the boiler at risk or immediately dangerous
You want to remove the loft tanks and cylinder and switch to a combi

How it works

No call centre and no sales visit. The person you speak to is the person who does the job.

1Get your estimated price
Answer a few questions about your home in the price tool and choose from three boilers, each priced and fitted.
2Dexter confirms the details
He checks the boiler position, flue and pipework, from photos or a short visit, so the price you were given holds.
3Fitted, tested and registered
The old boiler is removed, the system is flushed and protected, and the new boiler is commissioned and registered for its warranty.

Dexter's own photos

Real jobs, photographed by Dexter. No stock pictures.

Vaillant ecoTEC in a white cupboard
New combi boiler on a garage wall, with neat lagged pipework
Baxi Eco Compact fitted with copper pipework
The DWM documents pack, mat and Ideal Halo controls

What customers say

5.0 on Google from 63 reviews. Read them all on Google

★★★★★

Dexter has recently supplied and fitted a new gas boiler for us. His prices are competitive and the installation was painless and went according to plan without any issues. A very polite, hardworking and conscientious heating engineer Dexter did an excellent job. ...

Mike TizardGoogle review, February 2024

★★★★★
I can not recommend Dexter highly enough. Very efficient, knowledgeable and clean worker. Doesn't try to make you pay for more than you need. Installed a new boiler for me and I couldn' be happier with his work. He is going to be my go to in future.
James CharlwoodGoogle review, March 2026
★★★★★
Dexter came and swapped our old boiler for a new Ideal one. Friendly, professional and worked hard over three days. Tidied everything up afterwards and we would definitely use his services again. Thanks very much.
Alex ReidGoogle review, August 2023
★★★★★
I had decided to change my gas boiler as it was over 10 years old and wanted some advice about a new radiator. DWM was one of 3 quotes I had and Dexter’s polite and informative approach swung my decision. ...
David McMullenGoogle review, January 2024

Questions

New boilers:
your questions

Not sure what boiler you have? Send Dexter a photo and he will tell you.

WhatsApp Dexter

Which boiler brands do you fit?

Every major brand. The price tool shows Ideal, Vaillant and Worcester Bosch, and Dexter also fits Baxi, Main, Glow-worm, Viessmann and ATAG.

Do I need a combi or a system boiler?

A combi suits most homes with one or two bathrooms. Larger homes with several showers in use at once, or low water pressure, are often better on a system boiler with a cylinder. Dexter advises on this before you commit.

Is a new LPG boiler the same price as gas?

Yes. LPG boilers go through the same price tool at the same price as mains gas. See the LPG boiler page for the details that are different.

What warranty do I get?

Each manufacturer sets its own warranty, and Dexter registers it for you after the installation. The warranty length for each boiler is shown in the price tool.

Do I pay online?

No. You choose your boiler online and Dexter rings to confirm the details. Nothing is taken from your card on the website.