Oil boiler repairs · OFTEC registered
Oil boiler repair in Andover
Lockouts, smoke, a smell of oil or no heat at all. Dexter is OFTEC registered and repairs oil boilers inside and out.
5.0 on Google from 63 reviews · Gas Safe and OFTEC registered
How much does an oil boiler repair cost?
Oil boiler repairs are priced after a quick look, because the cost depends on the fault and the parts. Tell Dexter what the boiler is doing and send a photo if you can, and he agrees a price with you before any work starts.
Need it looked at quickly? Call 07774 319391 or WhatsApp Dexter.
Signs your oil boiler needs a repair
- The lockout light is on and resetting does not help
- Smoke, soot or a smell of oil near the boiler
- The burner fires but cuts out
- No heating or hot water with oil in the tank
- Unusual rumbling or roaring from the burner
How Dexter fixes it
Oil boilers fail in their own ways: the burner locks out, the nozzle or filter blocks, the photocell stops seeing the flame, or the boiler starts to smoke or smell of oil. Dexter is OFTEC registered and repairs oil boilers in utility rooms, garages and outside against the wall across Andover and the villages around it.
He checks the oil supply from the tank as well as the burner, because a blocked filter or an air lock in the line can look like a boiler fault. Once the cause is found he explains it, agrees the price and carries out the repair, then sets the burner up with a combustion analyser so it runs cleanly.
A lot of oil boiler breakdowns come from a missed service. Once it is running again, Dexter can book in a yearly service to keep it that way.
What Dexter checks on an oil repair
- Lockout history and the control box
- Oil supply, filter and line from the tank
- Burner nozzle, electrodes and photocell
- Pump pressure and combustion
- Flue, seals and heat exchanger
- A combustion test with an analyser after the fix
Price
Fixed price after a quick look
Priced after a quick look. Dexter agrees the price before any work starts.
Get it looked atWhat affects the price
- The part that has failed
- Whether the fault is in the boiler, the oil line or the tank
- Indoor or outdoor boiler
- Whether parts need ordering
How long it takes. Many oil boiler faults are fixed on the first visit. If a part has to be ordered, Dexter returns as soon as it arrives.
How it works
No call centre and no sales visit. The person you speak to is the person who does the job.
- 1Send the form or call
Tell Dexter what the boiler is doing and send a photo if you can.
- 2Fault traced and priced
He checks the boiler and oil supply, explains the fault and agrees the price.
- 3Repaired and set up
The repair is made and the burner set up with an analyser before he leaves.
Dexter's own photos
Real jobs, photographed by Dexter. No stock pictures.

Floor-standing oil boiler in a garage with an external flue
What customers say
5.0 on Google from 63 reviews. Read them all on Google
★★★★★
Excellent service. Dexter resolved a number of issues with our Central Heating/Hot Water system by working methodically through them. He was friendly and professional and responded in a timely manner to our enquiry. All was resolved in a couple of visits and within 36 hours. We are really pleased and have already asked Dexter to quote for some more work for us.
★★★★★
Called Dexter about a boiler issue. He came out the same day and at the same he said. He then very swiftly fixed the issue. Polite and professional. Would highly recommend!
Rosie MGoogle review, December 2023
★★★★★
Used this company to sort a few heating and plumbing issues with a property I purchased. Really friendly and professional service, explained to me the problems in simple terms and fixed everything quickly for me.
Kirk SelfGoogle review, April 2024
★★★★★
I highly recommend Dexter for any plumbing or heating jobs. I phoned him to help me sort out my immersion heater and he came within a couple of hours, diagnosed the problem, ordered the part I needed and then installed it within and hour after the part was delivered to my house. ...
Gus WehbehGoogle review, July 2024
Questions
Oil boiler repairs:
your questions
Not sure what boiler you have? Send Dexter a photo and he will tell you.
WhatsApp DexterAre you OFTEC registered?
Yes. Dexter is OFTEC registered for oil and Gas Safe registered for gas and LPG.
Should I keep pressing the reset button?
No. Repeatedly resetting a locked out oil boiler can flood the combustion chamber with oil. Reset it once, and if it locks out again, call for a repair.
Do you repair outdoor oil boilers?
Yes. Outdoor oil boilers are common around Andover and Dexter repairs and services them regularly.
What if the boiler is not worth repairing?
Dexter will say so and can price a new oil boiler for you instead.
Ask Dexter about oil boiler repairs
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



