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Radiator Valves

At Howarth, we stock a wide range of radiator valves, including thermostatic radiator valves (TRVs), drain-off valves, mixing valves, and more. You can shop online or visit us in branch. Choose from angled valves, straight valves, and corner radiator valves in different styles, sizes, and finishes.

Our range also includes black radiator valves for a modern look, as well as radiator bleed valves to keep your system working smoothly. Whether you need to replace a radiator valve or want to know how to change a radiator valve, we have everything you need to keep your heating both efficient and stylish.

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  • Avari Round Thermostatic Matt Black Radiator Valves Straight

    Avari Round Thermostatic Matt Black Radiator Valves Straight

    Avari bathrooms is a stunning collection of bathroom units and sanitaryware that will cater to all tastes. Whether you're looking for modern curved edges with clever integrated lighting solutions, or more traditional styles in-keeping with older...
  • Avari Round Thermostatic White Radiator Valves Corner

    Avari Round Thermostatic White Radiator Valves Corner

    Avari bathrooms is a stunning collection of bathroom units and sanitaryware that will cater to all tastes. Whether you're looking for modern curved edges with clever integrated lighting solutions, or more traditional styles in-keeping with older...
  • Avari Square Chrome Radiator Valves Angled

    Avari Square Chrome Radiator Valves Angled

    Avari bathrooms is a stunning collection of bathroom units and sanitaryware that will cater to all tastes. Whether you're looking for modern curved edges with clever integrated lighting solutions, or more traditional styles in-keeping with older...
  • Avari Square Chrome Radiator Valves Corner

    Avari Square Chrome Radiator Valves Corner

    Avari bathrooms is a stunning collection of bathroom units and sanitaryware that will cater to all tastes. Whether you're looking for modern curved edges with clever integrated lighting solutions, or more traditional styles in-keeping with older...
  • Avari Square Chrome Radiator Valves Straight

    Avari Square Chrome Radiator Valves Straight

    Avari bathrooms is a stunning collection of bathroom units and sanitaryware that will cater to all tastes. Whether you're looking for modern curved edges with clever integrated lighting solutions, or more traditional styles in-keeping with older...

  • Kartell 10mm Angled Lockshield Galaxy Design with DOC

    These 10mm Galaxy design Lockshield radiator valve offers an attractive finish to your chosen radiator. The twin pack comes with the lockshields and drain off valve, provided in a 10mm size. It also has a very beautiful chrome finish, where you will no...

  • Kartell 10mm Angled Lockshield Radiator Valve White Galaxy Design

    These 10mm Galaxy Angled design Lockshield radiator valves offer an attractive finish to your chosen radiator. This twin pack comes with the lockshields and drain off valve, provided in a 10mm size.

  • Kartell 10mm Angled Lockshield Style Design with DOC

    These 10mm Style design Lockshield radiator valve offers an attractive finish to your chosen radiator. The twin pack comes with the lockshields and drain off valve, provided in a 10mm size. It also has a very beautiful chrome finish, where you will no...

  • Kartell 10mm Angled Lockshield White Style Design

    This K-Rad 10mm Angled LS/WH in Style is manufactured from the best quality brass material, available as strange or angled. They are supplied in a pair and come complete with Wheelhead and Lockshield tops. It also has a chrome and white finish, which...
  • Kartell 15mm Angled Radiator Valve Anthracite Pair

    Kartell 15mm Angled Radiator Valve Anthracite Pair

    This pair of K-Rad angled radiator valves are a high-quality radiator piece, which are compatible with both floor and wall mounted pipes. They also have a thermostatic control for easy adjustment of heat output and a standard 15mm connection. The...
  • Kartell 15mm Angled Radiator Valve Black Pair

    Kartell 15mm Angled Radiator Valve Black Pair

    This pair of K-Rad Angled radiator valves are a high-quality radiator part which delivers an impressive component and combines both a dependable build with a fine modern look. They also have a thermostatic control for easy adjustment of heat output and a...
  • Kartell 15mm Angled Radiator Valve Pair Kartell 15mm Angled Radiator Valve Pair

    Kartell 15mm Angled Radiator Valve Pair

    The Kartell 15mm Angled Radiator Valve (Pair). These Modern radiator valves are designed and manufactured from quality chrome plated brass. Valves are straight and come as a pair.
  • Kartell 15mm Straight Radiator Valve Anthracite Pair

    Kartell 15mm Straight Radiator Valve Anthracite Pair

    This pair of K-Rad straight radiator valves are a high-quality radiator piece, which are compatible with both floor and wall mounted pipes. They also have a thermostatic control for easy adjustment of heat output and a standard 15mm connection. The...
  • Kartell 15mm Straight Radiator Valve Black Pair Kartell 15mm Straight Radiator Valve Black Pair

    Kartell 15mm Straight Radiator Valve Black Pair

    This pair of K-Rad Straight radiator valves are a high-quality radiator piece which delivers an impressive component and combines both a dependable build with a fine modern look. They also have a thermostatic control for easy adjustment of heat output...

  • Kartell Air Vent Brass

    The brass air vent is a radiator part that will add beauty, character, and individuality to your home. It can also be polished to achieve a lighter and brighter finish, or you can leave the brass to age so it can golden and deepen. The natural ageing...
  • Kartell Angled Thermostatic Radiator Valve Style Design Kartell Angled Thermostatic Radiator Valve Style Design

    Kartell Angled Thermostatic Radiator Valve Style Design

    With a sleek chrome finish, the Style Angled TRV valve provides the perfect finishing touch to your contemporary radiator or heated towel rail. Benefitting from durable solid brass construction, the valves will ensure that your appliance has a...
  • Kartell Aspen 15mm Angled Radiator Valve Pair Kartell Aspen 15mm Angled Radiator Valve Pair

    Kartell Aspen 15mm Angled Radiator Valve Pair

    Aspen 15mm Angled Radiator Valve (Pair) Chrome by Kartell. Kartell produces an excellent component that combines sturdy construction with a stunning modern style thanks to their meticulous design. The valves are angled and come in pairs.

  • Kartell Aspen 15mm Straight Radiator Valve Pair

    This pair of K-Rad Aspen straight Radiator valves are a high-quality radiator piece which delivers an impressive component and combines both a dependable build with a fine modern look. They also have a thermostatic control for easy adjustment of heat...
  • Kartell Atlantic Designer Radiator Anthracite 500 x 1185mm

    Kartell Atlantic Designer Radiator Anthracite 500 x 1185mm

    This amazing K-Rad 500mmx1185mm Atlantic Design central heated radiator features a modern rectangular design. It is guaranteed to add style and sophistication within your home, while also boosting a high heat output. The anthracite matte finish also adds...
  • Kartell Cincinnati Designer Radiator Anthracite 276 x 2000mm

    Kartell Cincinnati Designer Radiator Anthracite 276 x 2000mm

    The K-Rad Cincinnati Design Radiator in 276mmx2000mm is a quality concurrent radiator with a clean, synchronic look. It acts as a remarkable focal point for any modern bathroom and can supply a remarkable amount of valuable background heat. It comes in a...
  • Kartell Corner Valve Pair Kartell Corner Valve Pair

    Kartell Corner Valve Pair

    The Kartell Corner Valve (Pair). These classic radiator valves are designed and manufactured from quality stainless steel. Valves are angled and come as a pair.
  • Kartell Cross Head Angled Radiator Valve Pair Kartell Cross Head Angled Radiator Valve Pair

    Kartell Cross Head Angled Radiator Valve Pair

    The Kartell Traditional Cross Head Valves have a polished chrome finish and a manual control head. The Kartell Angled Traditional Cross Head Valves are sold as a pair and are constructed of high grade brass. If paired with a classic style towel radiator,...
  • Kartell Cross Head Straight Radiator Valve Pair Kartell Cross Head Straight Radiator Valve Pair

    Kartell Cross Head Straight Radiator Valve Pair

    These angular valves are designed for a traditional and classic bathroom setting. The cross-head handles allow the valves to instantly stand out on the towel rail/ radiator. Additionally, these chrome valves are easy to use and install.
  • Kartell Design Twin Pack Angled Thermostatic Radiator Valve Black Kartell Design Twin Pack Angled Thermostatic Radiator Valve Black

    Kartell Design Twin Pack Angled Thermostatic Radiator Valve Black

    The K-Rad angled Design Twin TRV is a stylish and modern radiator part which is supplied in a pair. It has a very high-quality finish construction and a beautiful sleek black finish, which will no doubt encourage lots of compliments from guests.

Radiator Valves

Radiator valves are a vital part of any heating system, helping you maintain comfort and efficiency at home. With options such as thermostatic radiator valves (TRVs), you can easily control the temperature of each radiator individually for a tailored heating experience.

Types of radiator valves

  • Straight Radiator Valves: Ideal for pipework that comes directly from the floor. These valves connect in a straight line, offering a neat and practical finish.
  • Angled Radiator Valves: The most common choice, angled valves connect at 90 degrees to help conceal pipework for a tidy look.
  • Corner Radiator Valves: A stylish option where the valve faces inward toward the wall, creating a discreet appearance.
  • Black Radiator Valves: A bold, contemporary choice that pairs perfectly with modern interiors and contrasts beautifully with lighter radiators.

    • Maintaining your radiator valves

    To keep your radiator valves efficient and long-lasting, regular maintenance is key. Using a radiator bleed valve helps release trapped air, ensuring your heating system runs smoothly and avoids cold spots.

    Why choose thermostatic radiator valves (TRVs)?

    Thermostatic radiator valves automatically regulate hot water flow based on room temperature. This maintains consistent comfort while reducing energy waste, preventing overheating, and lowering energy costs.

    Whether you need angled radiator valves, corner radiator valves, or advanced TRVs, our expert team can help you make the right choice. Visit your local Howarth branch for tailored advice or explore our full range online.

    Control your home’s heating with confidence and style using high-quality radiator valves from Howarth.

Frequently Asked Questions

How do I change a radiator valve?
To change a radiator valve, you will need to first switch off the heating and water system, and then locate the drain off. After that, you will need to remove the old radiator valve to be able to fit the new radiator valve. That is when you can turn the mains water back on, to be able to finish by bleeding the radiator.
How do thermostatic radiator valves work?
Thermostatic valve head goes on top of the valve body, and then as the room temperature changes, the valve head expands, adjusting a pin in the valve body so that it opens or closes.
What are the two valves on a radiator for?
One of the valves accounts for hot water that enters the radiator. The other valve, referred to as the lockshield valve, balances the system by regulating how much heat the radiator gives off.
What side of the radiator is the lockshield valve?
The lockshield valve is located on the side of the radiator opposite the on/off valve.
How to change a radiator valve without draining the system?
To change a radiator valve without draining the whole system, start by turning the heating and water off, then protect the floor around the radiator under the valves to catch any excess water. After that, prepare the radiator valves by removing the nuts and adaptors on the new valve and smear it with the PFTE tape that joins to the radiator. Next, release the stored pressure, then open the old valve on the flow pipe. Once the thermostatic valve or manual is open, release the pressure, drain the radiator and remove the old thermostatic valve. Finally, you can attach the new thermostatic valve or manual valve, remove the old lockshield valve, and connect the new lockshield valve to finish.

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