Welcome to OnTimePlumbers
Boiler servicing ensures a longer life of your boiler, and our highly skilled local plumbers will ensure that the controls and parts are checked, that the boiler and its system are free of scale damage and that the radiators, valves and exposed pipe work have no leaks and are not corroded which will ensure you have many years of a boiler that is in good and safe working conditions. We are capable of offering good boiler services that are performed in the appropriate way, swiftly and at a pocket-friendly cost.


Our team handles all types of boiler work, including:
✅ Boiler installation & replacement
🔧 Boiler repairs & fault finding
🧼 Boiler servicing & maintenance
💨 Gas safety checks & certification
🌡️ System power flushing & efficiency testing
We work with all major boiler brands — including Worcester Bosch, Vaillant, Ideal, and Baxi — ensuring reliable performance and full warranty compliance.

At OnTime Plumber London, we recognize that the breakdown of a boiler is a nightmare, we know we need to be quick, reliable and we know we have to be affordable. That is why we would never risk hiring someone to do any gas work to other than the best Gas safe registered (previously Corgi plumbers) engineers available to do the job on your boiler.
Our highly qualified heating and boiler engineers are capable of doing all your boiler necessities since they are skilled in all aspects, starting with boiler installation, fault finding, upgrades, and maintenance.
In case you need gas boiler services, all you have to do is to call us at OnTime Plumber London, and within the shortest time possible, one of our most competent engineers would come to diagnose the issue and repair your boiler.
We are very proud of our customer service and we work to a very high level of workmanship with fully-qualified professional engineers, which is why you can be confident that any work that we undertake is safe in your home.
The main reason why annual boiler maintenance is significant is that all health hazardous risks, which are associated with a poorly-performing or even dangerous heating device are pre-empted.
Carbon monoxide poisoning is rather a realistic scenario as far as having a leaking boiler that is also not serviced and checked on regular basis is concerned. Worse still, even an odorless and colorless gas leak is hardly noticeable, unless it is the case of a special gas leak detector, since such a leakage is practically invisible. So, you should not waste more time and invite a specialist who will make sure that your house and relatives are safe!
Noticeable point: It is a legal requirement that the landlords have to invest in the annual boiler servicing to guarantee that their premise is in a rentable condition and meets the safety requirements.
OnTime Plumber London works 24 hours a week and even during public and bank holidays. We can possibly attend your boiler servicing, repairing, or instalment requirements within the same day or at minimal notice which is of course, a subject of availability of availability. Therefore, we would recommend that you should set your boiler service beforehand, at least not on the verge of the heating season, but before it.
Finding the appropriate boiler cover that will help you prevent any needless failures in your heating system and save you on the expenses of repairs can be very helpful and can save you a lot of money.
Being a homeowner, it would be great to be spared the inconvenience of being caught up in an emergency and trying to find a local plumber in London with a boiler and central heating cover plan. The central heating cover plans by the landlord will assist you in maintaining your rented home in a good state.

As we have determined, the most important thing that you can do to keep your property safe and to make sure that you have a functioning, energy saving heating system is by spending a few dollars on yearly boiler inspection.
You do not just get a Gas Safe Registered engineer who when you book a service, goes and has a look at the unit. They conduct a round of technical diagnostic checks to make sure that your central heating system is of the high standards of UK safety.
In order to preserve the best performance standards and meet the warranty obligations as set by the manufacturer, a certified technician will do the following:
Corrosion & Leak Detection: A detailed visual inspection of water leaks or evidence of metal fatigue.
Internal Component Check: Checking the main burner, spark electrode and internal controls in terms of wear and tear.
Seal and Gasket Maintenance: Checking and changing seals where they are required as dangerous leakages of fume gases.
Heat exchanger integrity: A thorough cleaning and inspection of the heat exchanger in order to provide the best thermal transfer.
Flue Gas Analyser (FGA) Test: This is an analytical test measuring gases of combustion using a digital analyser. This is to secure that the air-to-fuel ratio and burner pressure are on the manufacturer setpoint limits to ensure safety and efficiency.
Improved Central Heating Service In addition to the typical check of the boiler unit, we have engineers who can offer health testing to the entire system on request.
The biggest distinction between boiler servicing and a boiler repair service is that the former tends to avert the latter. Or to put it another way, your yearly service of the boiler will ensure you save the life of your device, along with the probability of failures and the necessity to have unplanned repairs, at least a year.
Naturally, boiler repair crises may also be unpredicted and we will be able to react to them right on time as well. However, what is more important here is that by ensuring that you prevent such accidents in the course of your yearly boiler servicing, you will reduce the likelihood of having to contract the services of a boiler repair company in the foreseeable future. After all, it is the work of the technician to pass a variety of tests to diagnose possible issues with your boiler.
After the appliance has been serviced, you will be financially benefited, because it would operate more efficiently. Assuming that you have a boiler which is old and you have had a major problem with it in the past, it would be only reasonable to consider replacing it with a new boiler. In that case, however, take note of the fact that Fantastic Services is also specialised in the boiler installation services, thus there is no need to be shy to seek our services in cases of need.
Want to know what is the difference between the two? To begin with, the servicing of boilers is applicable to any kind of equipment, be it solid-fueled or oil-based boiler. There being, then, an apparent difference of the two alternatives, as you see.
However, when your appliance uses gas, then, take note that gas safety check is required on all gas appliances you have at home, such as your gas oven, gas hobs and gas fireplace, of course. There is one more point that we should make. Some gas safety check is intended to indicate only possible or actual problem with your gas plumbing system and appliances and make no efforts to repair them, whereas boiler servicing may include seal or old fluid change, etc.