Boiler servicing · Gas boilers
Boiler service in Andover
A yearly service keeps your boiler safe, efficient and inside its warranty. Choose a time that suits you and Dexter comes to you.
5.0 on Google from 63 reviews · Gas Safe and OFTEC registered
Book your boiler service online
Choose a time that suits you and Dexter comes to you. Would rather talk first? Call 07774 319391 or WhatsApp Dexter.
How much is a boiler service in Andover?
A gas boiler service from DWM starts from £85. It includes a flue gas analysis, safety checks and a written record. A full strip down service with new seals is £120.
What happens on the visit
Most boiler manufacturers require a yearly service to keep the warranty valid, and a service is the best way to catch small faults before they turn into a breakdown in the middle of winter. Dexter services gas boilers across Andover and the surrounding area for homeowners and landlords.
A proper service is more than a quick look. Dexter checks the boiler's operation and safety devices, tests the combustion with a flue gas analyser, inspects the flue, checks the system pressure and expansion vessel, and cleans or replaces parts where needed. He tells you plainly if anything needs attention and what it would cost.
If you are a landlord, Dexter can carry out the annual gas safety check (CP12) on the same visit.
What a boiler service includes
- 01Visual and operational checks of the boiler
- 02Flue gas analysis to check combustion
- 03Flue and air supply inspected
- 04Safety devices and controls tested
- 05Gas pressure and system pressure checked
- 06Expansion vessel and condensate checked
- 07A written service record
Why have your boiler serviced every year
- It keeps the manufacturer warranty valid
- It catches worn parts before they fail
- It checks for carbon monoxide and flue problems
- A well set up boiler uses less gas
- Landlords need a yearly gas safety check anyway
Price
From £85
A full strip down service with new seals is £120. Any other parts are agreed with you first.
Book the serviceWhat affects the price
- Parts that need replacing
- A landlord gas safety check added on the same visit
- Access to the boiler and flue
How long it takes. A standard service takes about an hour. A full strip down service takes about an hour and a half.
How it works
No call centre and no sales visit. The person you speak to is the person who does the job.
- 1Pick a time
Choose a day and time above, or call Dexter if you would rather talk first.
- 2Serviced and tested
Dexter services the boiler and tests it with a flue gas analyser.
- 3Explained and recorded
He tells you how the boiler is doing and leaves a service record.
Dexter's own photos
Real jobs, photographed by Dexter. No stock pictures.

Service kit and manometer on a boiler service 
Analyser and service paperwork
What customers say
5.0 on Google from 63 reviews. Read them all on Google
★★★★★
Excellent experience with Dexter servicing our boiler. He arranged to come promptly, carried out a thorough service explaining what he had found. Tidy, friendly and reasonably priced. Have used him twice now for different things and will continue to do so.
★★★★★
Dexter came to do a boiler service for us. He was very responsive and arrived on time. Very professional and friendly. He knows his stuff. Would highly recommend.
Gareth HowardGoogle review, July 2023
★★★★★
Dexter was absolutely brilliant. Contacted him via check a trade for a boiler service. Dexter arrived and noticed a few issues with the boiler before doing the service. He explained the issues and then sent us a quote which we accepted. Dexter arrived on the agreed time and date. ...
Tammy GorstGoogle review, January 2024
★★★★★
Recently Dexter conducted an annual service on my boiler. I asked him about the replacement of 3 radiators which were showing some signs of corrosion as well as the decommissioning and removal of an old gas fire. His quote was competitive and realistic, and we agreed a date and a price for the work. ...
Zak NewtonGoogle review, July 2023
Questions
Boiler servicing:
your questions
Not sure what boiler you have? Send Dexter a photo and he will tell you.
WhatsApp DexterHow often should a boiler be serviced?
Once a year is recommended, and most manufacturers require it to keep the warranty valid.
How long does a boiler service take?
Usually around an hour, longer if a part needs replacing.
Do you service all boiler brands?
Yes, all the major brands of gas boiler. LPG and oil boilers have their own service pages.
Can you do my landlord gas safety certificate at the same time?
Yes. Mention it on the form and Dexter can carry out the CP12 check on the same visit.
Ask Dexter about boiler servicing
Send the short form and Dexter rings you back himself. Or call 07774 319391 or send a WhatsApp.
Gas Safe and OFTEC registered · 5.0 on Google from 63 reviews · Based in Andover, covering Hampshire and Wiltshire



