How much does a plumber charge to replace a thermostatic radiator valve?


    Do you want to know the cost before you go ahead with work? – Of course!

    This helpful article will help you to know what TRV is, and an estimated cost of replacing it, when you are living in London.

    What thermostatic radiator valve is for?

    thermostatic radiator valve is a self-regulating valve. They are fitted to a hot water heating system radiator. This little thing is not just helping you to be comfortable in your home, but can save you so much money on your bills. This is why it is so important to maintain them. They are responsible for your room air temperature.

    Who is qualified to change TRV in your home?

    It is very important to check, who you let into your home. To receive quality service, you have to hire the right person, with the qualifications, with public liability insurance in place. The competent person is a Heating engineer. Some plumbers are also able to help you if they have knowledge of the heating system but be aware, not all of them have.

    Read more about your heating system, and services from MML Plumbing’s experts.

    What to expect when you found the right team?

    We are able to help with repair and replacement services. Either of them you need, MML Plumbing is here to help.

    You have two options, either replacing your TRVs or fixing leaking valves.

    How much will it cost and how long does it take?

    The replacement itself doesn’t take long. About 5-10 minutes or a little longer depending on the size of your radiator. Remove the old thermostatic valve.

    However, in order to replace them, the whole system has to be drained down. Depending n the system size, this could take between 1-5 hours. When all the water has drained from the radiator, keep unscrewing the nut until you can pull the valve out of the radiator to disconnect it. Then replace it with your new valve.

    In some cases, it is possible to change them without draining the heating system.

    Heating service labour prices can start from £80 and can go as high as £160 + VAT/hours in London.

    If you are living in North London, you are lucky! MML Plumbing Ltd is a family-run local business, and our prices are affordable. We charge £80 ( INC VAT) / hours for our professional heating engineer’s visit. We will find the right TRV because it has to be the same as what you have currently. TRVs prices vary, they can start from £8- £80, but you can find even more expensive stylish ones.

    When to change your radiator’s thermostatic valves?

    TRVs can last until 10-15 years. Better quality brands did last longer than, like Danfoss.

    When your TRVs are leaking or get stuck, replacing is the most important thing asap.


    Upgrading them can have profitable on your home’s heating, and you might change them to make your home stylish because they are an important part of your central heating system.

    Sometimes you can save your radiators and no need to replace radiators. Radiator installed is always a good thing to do, however, not everyone has spare money to do so.

    Faulty radiator valves replacement

    Faulty thermostatic radiator valves mean either a leak or they can be stuck. Preventing expensive repairs is the most important thing!

    Changing manual valves for TRVs

    It can help to heat your home with efficiency. Control your bills in your home! Maintaining well the home’s central heating systems is important.

    Decor your home, with stylish and efficient TRVs 

    You can find a beautiful selection of radiator valves, you have never imagined. They will highlight your home and not just that but save you a lot on your bills, and let you control the temperature to feel comfortable in your living room or rooms.

    Replace a radiator or just a TRV?

    It is a really good question, however, this is depending on the issue you are having. That is why customers need heating engineers to decide what would be the best solution. There are hundreds of types of radiators on the market, such as stainless steel radiators, double panel radiators, cast iron radiators just to name a few, and they can have different issues. There is one thing we agree on, people need efficient radiators to avoid huge heating bills. It is important to mention, that avoid DIY radiator replacement by an unqualified tradesman.

    What’s normally not included in the service, when you call out a plumber or a heating engineer?

    • Any congestion zone, ULEZ or parking charges – This will be added at cost to the final bill (unless a parking permit for the duration of the visit is provided).

    Why MML Plumbing Ltd?

     We are able to provide a fixed price

     Highly qualified engineers

     24/7 online customer support

    Gas safe registered

    Friendly prices

    Great customer service

    Book with confidence

    Protected by MML Plumbing’s Guarantee


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