OIL BOILER REPAIR

OIL BOILER REPAIR

Oil boiler repair
done properly.

Oil boiler repair
done properly.

Oil boiler repair
done properly.

No heat, no hot water, or locked out with the reset light on. Our team is now registered to work on oil boilers, so a rural home off the gas grid does not have to sit cold while somebody guesses at it.

No heat, no hot water, or locked out with the reset light on. Our team is now registered to work on oil boilers, so a rural home off the gas grid does not have to sit cold while somebody guesses at it.

No heat, no hot water, or locked out with the reset light on. Our team is now registered to work on oil boilers, so a rural home off the gas grid does not have to sit cold while somebody guesses at it.

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

GETTING STARTED

How to get it looked at.

How to get it looked at.

How to get it looked at.

COMMON OIL FAULTS

What usually goes wrong on oil.

What usually goes wrong on oil.

What usually goes wrong on oil.

Most oil breakdowns come down to the burner or the oil supply rather than the boiler itself. Those are the ones people waste money on, because they get treated as boiler faults when they are not.

Most oil breakdowns come down to the burner or the oil supply rather than the boiler itself. Those are the ones people waste money on, because they get treated as boiler faults when they are not.

1

It tries to fire, then locks out

It tries to fire, then locks out

Usually the burner side: a blocked nozzle or filter, a faulty photocell, or air in the oil line. Press reset once at most. Pressing it again and again can flood the boiler with oil and turn a small fault into a bigger one.

2

Nothing at all, and the tank is low

Nothing at all, and the tank is low

Check the tank gauge before anything else. A tank that has run low can draw sludge or air into the line, and the boiler will not fire properly until the supply is sorted.

3

No hot water, heating is fine

No hot water, heating is fine

On an oil combi it is usually the diverter valve, same as on gas. On a system or regular boiler it is more often the cylinder thermostat or a motorised valve.

4

No heating, hot water is fine

No heating, hot water is fine

Usually the pump, a motorised valve or the controls rather than the boiler. Check the room thermostat has batteries and is calling for heat before anyone comes out.

5

Losing pressure

Losing pressure

On a sealed system: a leak, a passing pressure relief valve, or an expansion vessel that has lost its charge. The rate of loss tells us which, so note how often you are topping it up.

6

A smell of oil or smoke

A smell of oil or smoke

Turn the boiler off and get it looked at. A smell of oil or smoke usually means the combustion needs setting up or there is a leak on the line, and neither should be left running.

Where we repair oil boilers.

Where we repair oil boilers.

Where we repair oil boilers.

Bridgend county and the Vale of Glamorgan as home ground, out to Cardiff one way and Neath and Port Talbot the other. Oil heating is mostly the rural homes off the gas grid in that patch, out in the villages and the Vale. Not sure whether you are in it? Send your postcode and we will tell you straight away.

Bridgend county and the Vale of Glamorgan as home ground, out to Cardiff one way and Neath and Port Talbot the other. Oil heating is mostly the rural homes off the gas grid in that patch, out in the villages and the Vale. Not sure whether you are in it? Send your postcode and we will tell you straight away.

5.0 FROM 213 GOOGLE REVIEWS

What people say about us.

What people say about us.

What people say about us.

★★★★★

He greeted us and took his boots off before going up stairs to service our Boiler he was very polite, and did the Service well we are both very happy with Lloyd.

Christina Ellis

June 2026

★★★★★

We asked LMB to come and service an inherited boiler (which was probably around 15 years old) in our new house last year and Lloyd has been back a couple of times to fix issues we were having with it.

Marianne Morgans

June 2026

★★★★★

We hired Lloyd to carry out a boiler service and outdoor tap replacement. He was very punctual, arriving at the agreed time and very polite.

Oliver Rees

March 2026

testimonials

Real customers. Real results.

213 five star reviews from homeowners across South Wales. Every one of them left on Google, not written by us.

D
David Rees
August 2026
★★★★★
An outstanding Gas Engineer and a fine individual. I cannot recommend LMB Plumbing & Heating highly enough. He installed a new Gas Boiler and overhauled our 25 year old Central Heating system for a good price.
LMB REPLIED
Thank you, David — we’re delighted to hear you had such a positive experience. We're glad the new gas boiler installation and overhaul of your…
L
Lee Major
July 2026
★★★★★
I can’t recommend Lloyd highly enough. From the initial Contact right through to completion of the job , his customer service was outstanding. Lloyd arrived exactly on time, was polite , friendly and professional throughout. The quality of his workmanship was excellent and he clearly takes great…
LMB REPLIED
Thank you so much, Lee, for your fantastic review and for recommending Lloyd. We’re delighted he arrived on time, was professional and friendly, and…
D
Dafydd Pugh
July 2026
★★★★★
Excellent. Lloyd provided an excellent service - good communication, timely arrival, left the work area clean and did the work efficiently
LMB REPLIED
Thank you Dafydd
N
Nigel Walters
July 2026
★★★★★
LMB responded the same day to repair a gas problem I had. Other companies I contacted were unhelpful, and most of them actually declined the work. LMB were positive & engaging from the start, fixed the problem and charged a fair price. Highly recommended, ask for Lloyd.
LMB REPLIED
Appreciate the feedback Nigel, pleasure to do work for.
S
Scott Rivers
July 2026
★★★★★
LMB plumbing & Heating have been fantastic since first conversation / quote to boiler install. From boiler install we had him come back to fit our shower room and the standard and service is second to none. If I could give more stars I would. Class from the lads at LMB plumbing & Heating
LMB REPLIED
Thankyou Scott, pleasure fitting the boiler and heating system for you!
S
Samantha
July 2026
★★★★★
I have had these gentlemen come to my property on two separate occasions. Very prompt, very polite and got the job done. I even contacted them late on Sunday evening and they politely arranged for a next day appointment, came and solved the problem. Will always use and recommend!
LMB REPLIED
Thank you so much for your wonderful review, Samantha. We're thrilled our team was prompt, polite, and able to resolve your issue quickly on short…
C
Craig Williams
July 2026
★★★★★
Lloyd recently fitted our new boiler. It has been fitted to a very high standard and he took care of the house when working. Polite and punctual.
LMB REPLIED
Thank you, Craig, for the excellent review. We're delighted Lloyd fitted your new boiler to such a high standard and took good care of your home. We…
R
Rachel 01
June 2026
★★★★★
Lloyd came out and quoted a job for us, to change our bath, sink, & toilet. He has been brilliant from start to finish I’m so glad my mum recommended him. He was incredibly professional and nothing was too much trouble. Will most certainly have him back to do future work and will 100% recommend him…
LMB REPLIED
Thank you so much, Rachel, for the wonderful review and for recommending us to your mum. I’m delighted the bathroom, sink, and toilet work met your…
D
David Rees
August 2026
★★★★★
An outstanding Gas Engineer and a fine individual. I cannot recommend LMB Plumbing & Heating highly enough. He installed a new Gas Boiler and overhauled our 25 year old Central Heating system for a good price.
LMB REPLIED
Thank you, David — we’re delighted to hear you had such a positive experience. We're glad the new gas boiler installation and overhaul of your…
L
Lee Major
July 2026
★★★★★
I can’t recommend Lloyd highly enough. From the initial Contact right through to completion of the job , his customer service was outstanding. Lloyd arrived exactly on time, was polite , friendly and professional throughout. The quality of his workmanship was excellent and he clearly takes great…
LMB REPLIED
Thank you so much, Lee, for your fantastic review and for recommending Lloyd. We’re delighted he arrived on time, was professional and friendly, and…
D
Dafydd Pugh
July 2026
★★★★★
Excellent. Lloyd provided an excellent service - good communication, timely arrival, left the work area clean and did the work efficiently
LMB REPLIED
Thank you Dafydd
N
Nigel Walters
July 2026
★★★★★
LMB responded the same day to repair a gas problem I had. Other companies I contacted were unhelpful, and most of them actually declined the work. LMB were positive & engaging from the start, fixed the problem and charged a fair price. Highly recommended, ask for Lloyd.
LMB REPLIED
Appreciate the feedback Nigel, pleasure to do work for.
S
Scott Rivers
July 2026
★★★★★
LMB plumbing & Heating have been fantastic since first conversation / quote to boiler install. From boiler install we had him come back to fit our shower room and the standard and service is second to none. If I could give more stars I would. Class from the lads at LMB plumbing & Heating
LMB REPLIED
Thankyou Scott, pleasure fitting the boiler and heating system for you!
S
Samantha
July 2026
★★★★★
I have had these gentlemen come to my property on two separate occasions. Very prompt, very polite and got the job done. I even contacted them late on Sunday evening and they politely arranged for a next day appointment, came and solved the problem. Will always use and recommend!
LMB REPLIED
Thank you so much for your wonderful review, Samantha. We're thrilled our team was prompt, polite, and able to resolve your issue quickly on short…
C
Craig Williams
July 2026
★★★★★
Lloyd recently fitted our new boiler. It has been fitted to a very high standard and he took care of the house when working. Polite and punctual.
LMB REPLIED
Thank you, Craig, for the excellent review. We're delighted Lloyd fitted your new boiler to such a high standard and took good care of your home. We…
R
Rachel 01
June 2026
★★★★★
Lloyd came out and quoted a job for us, to change our bath, sink, & toilet. He has been brilliant from start to finish I’m so glad my mum recommended him. He was incredibly professional and nothing was too much trouble. Will most certainly have him back to do future work and will 100% recommend him…
LMB REPLIED
Thank you so much, Rachel, for the wonderful review and for recommending us to your mum. I’m delighted the bathroom, sink, and toilet work met your…
ADVICE

Thirty guides,written by our team

Boilers, radiators, gas certificates, and what the jobs actually cost.

ADVICE

Thirty guides,written by our team

Boilers, radiators, gas certificates, and what the jobs actually cost.

ADVICE

Thirty guides,written by our team

Boilers, radiators, gas certificates, and what the jobs actually cost.

OIL QUESTIONS

Oil boiler questions.

Oil boiler questions.

Oil boiler questions.

My oil boiler has locked out. Should I keep pressing reset?

Do you repair oil boilers as well as gas?

Is it the boiler or the oil supply?

How quickly can you come out?

Do you charge a call-out fee?

What should I do if I can smell oil?

Need something else?

Need something else?

Need something else?

Boiler servicing, repairs, new boilers and general plumbing are all on one page.

See all services

Oil boiler stopped?

Tell us the make, what it is doing and whether the lockout light is on. Every oil job starts with a site visit, and you know what that visit costs before we set off.

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.

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

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