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Professional Boiler Repairs In Southampton

It is important that your boiler stays in good condition throughout the cold season and any other time of the year. Otherwise, without a working boiler, it may be hard to keep your home as warm as it should, which exposes you to cold-related problems. At No1PHD, we repair all types of boilers and ensure that they are working right.

There are several signs that may point to a problem in your boiler. Here are some of them.

This is a case where you hear loud, banging noises as your boiler works. In many cases, the boiler starts rambling and gets worse with regular use.

A pilot light that does not stay on:
If your boiler does not have an electronic system that turns the pilot light on when you need to use it, then the pilot lamps should stay on. In most cases, the light goes off due to a broken thermocouple that is stopping the gas supply or a draught blowing out the pilot lamp.

Leakage near the boiler:
If a pressure seal or a valve has a problem, some steam may be leaking out of the pump and condensing to form water. It is also common when your boiler pressure is too high. Besides, a corroded tank and improperly fitted pipes may lead to leakage. If this happens, immediately call out No1PHD, and one of our Southampton plumbing and heating engineers will be with you in a flash!

Lack of heat:
If your boiler is working but does not produce any heat, there could be a problem with motorised valves, airlocks and diaphragms. Besides, your thermostat may be giving wrong measurements or the system pressure could be too low. But don’t worry, our engineers can fix this heating issue for you.

Low boiler pressure:
You can tell there is low pressure by checking the pressure gauge of your boiler. Low pressures (below 1 amperes) may cause the heat not to circulate across the house. It may also be the reason why you are not getting heat even when the boiler is working right.

Radiators that fail to heat:
Radiators fail to heat when there is a build-up of air or sludge in the heating system. In many cases, the radiators may just get heated at the bottom and nowhere else. In such a case, bleeding the radiator may be the solution. Where some radiators are not heating up, you may need to have the radiators balanced to optimise the transfer of heat.

Thermostat issues:
If the house seems to heat beyond your set temperature or does not heat even if your boiler is working, there could be a problem with the thermostat.

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Absolutely blown away by the service we received. Took all the stress out of losing our heating and hot water. Highly recommended!

5 star review

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Ellipse 1
Mr Wells

2 weeks ago

Couldn’t have asked for a faster resolution to our drainage conundrum. Nothing was too much for these guys who were brilliant throughout.

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Miss Carey

1 month ago

Quality Boiler Repair service in Southampton

If you notice any of the above signs, consider having your boiler checked as soon as possible. Problems such as leakages and banging noises should be treated as emergency heating cases. We also advise that you do not attempt to open up your boiler for inspection if you are not a qualified technician; leave this to our expert heating engineers.

Our No1PHD boiler technicians are highly qualified and have the right tools to handle any Southampton boiler problem fast and effectively. We have all the requisite licenses and are a bonded company that operates across Southampton and the surrounding areas. Do not hire unlicensed technicians for your boiler repairs; contact us today on 01425 208031 for a quality boiler service.

Regular Maintenance

We recommend that you have your boilers checked before the onset of any cold season. This ensures that the appliance is functioning optimally throughout the cold season. We offer annual boiler maintenance, where we check and fix any problems associated with your boiler. However, we can do maintenance on a call basis. This way, you are not afraid that your heating system may fail at any point during the season.

Emergency Maintenance

If your boiler breaks down at any time of the day or night, leaks, makes loud noises, or simply fails to generate any heat, contact our emergency boiler repair services. We have teams in place around the clock to respond to plumbing, heating and drainage problem calls across our service areas. When time is of the essence, we will be there to get your boiler up and running.

Contact Us

Do you have a boiler issue that you would like us to fix? We are open for service requests, questions and compliments. Contact our Southampton customer service team via 01425 208031. You can also drop us a line on our contact page and we will respond as soon as possible, or email us directly at,

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5 stars
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After noticing that the house was unusually cold, we found that the heating wasn’t coming on and that our hot water had also failed. We called the team at No 1 PHD who dispatched an engineer to investigate. After discovering that the culprit was a faulty boiler part, they ordered in a new part and got it fitted as quickly as possible. The guys were great, and we couldn’t be happier.

Mr Lincoln

5 stars
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For days, we’ve noticed a foul smell coming from outside and a gurgling sound coming from one of the drains. Whenever it would rain, the area around it would flood slightly and take ages to drain. We tried buying drain unblockers, but none seemed effective. Eventually, we turned to No 1 PHD and were left wondering why we didn’t do this sooner.

Mrs Griffin

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