At Thermostatic Mixing Valve Servicing, we pride ourselves on being the best thermostatic mixing valve servicing company in Dorset, specialising in ensuring your hot water system operates safely and efficiently with our comprehensive TMV servicing.

We specialise in the maintenance, repair, and calibration of thermostatic mixing valves (TMVs) for both residential and commercial properties.

Our team of certified technicians are dedicated to providing top-notch service, ensuring your water systems are compliant with the latest health and safety standards.

With a commitment to reliability and excellence, our company guarantees peace of mind and efficiency in your water temperature management.

Types of Thermostatic Mixing Valve Servicing

Thermostatic Mixing Valve servicing keeps water systems safe, compliant, and efficient. Our company provides a full range of TMV servicing options to meet regulatory standards and prevent scalding or bacterial growth.

• Routine TMV Servicing in Dorset – Routine servicing involves scheduled inspection, cleaning, and testing of each valve. Our engineers check temperature accuracy, inspect filters and strainers, and remove scale or debris. This ensures consistent temperature control and system reliability.
• TMV Performance Testing and Calibration – Performance testing confirms that outlet temperatures remain within the safe range. Calibration adjusts the valve to maintain compliance with HSE and NHS guidelines. Regular testing prevents temperature drift and safeguards users.
• TMV Cleaning and Descaling in Dorset – Mineral deposits and limescale can restrict flow and affect temperature accuracy. Our team cleans and descales all components, including filters and cartridges, to restore optimal performance.
• TMV Repair and Component Replacement – If a valve fails or shows signs of wear, we replace seals, thermostatic elements, or other faulty parts using genuine manufacturer components. This extends valve life and prevents costly system failures.
• Legionella Control TMV Servicing in – We provide Legionella-focused TMV maintenance to prevent bacterial growth in hot water systems. This includes disinfecting valves, flushing pipework, and verifying compliance with HSG274 Part 2.
• Emergency TMV Servicing in Dorset – Our rapid-response service addresses sudden valve failures or unsafe water temperatures. Quick intervention restores safety and minimises downtime.

Thermostatic Mixing Valve Servicing Cost in Dorset

The average cost of thermostatic mixing valve servicing in Dorset is £250 – £300.

The price of TMV servicing can vary based on the type of service valves used and the complexity of the system.

Several factors contribute to the price variations in TMV servicing. The brand and quality of the valves play a significant role in determining the overall cost.

The size and intricacy of the system can influence the labour hours required for the service, impacting the final price.

Where is Thermostatic Mixing Valve Servicing Required?

Thermostatic mixing valve servicing is essential in various settings, including hospitals, schools, and commercial buildings, where managing water outlets is critical for safety and compliance with health technical memoranda.

In hospitals, the precise temperature control provided by thermostatic mixing valves is crucial for preventing scalding injuries in vulnerable patients and ensuring hygienic conditions.

Schools benefit from TMV servicing to regulate water temperatures in washrooms, cafeterias, and science labs, promoting a safe learning environment.

In commercial buildings, these valves play a key role in preventing Legionella growth and ensuring a consistent hot water supply, adhering to strict regulatory standards for public health and safety.

Why is TMV Servicing Important?

Regular TMV servicing in Dorset is crucial to prevent scalding and ensure safe water temperatures, maintaining the health and safety of all water system users.

Without proper servicing, TMVs can become inefficient, leading to fluctuations in water temperature that can be both uncomfortable and dangerous. Inconsistent temperatures not only disrupt water usage but also pose risks, especially in settings where precise temperature control is essential, such as hospitals or childcare facilities.

The benefits of regular maintenance cannot be overstated. By scheduling routine servicing, you can avoid sudden malfunctions and potential safety hazards.

This proactive approach not only ensures a reliable supply of safe water but also prolongs the lifespan of your TMVs, saving you from costly replacements down the line.

Our TMV Servicing Process

At Thermostatic Mixing Valve Servicing, we follow a structured TMV servicing process to ensure every system operates safely, efficiently, and in full compliance with UK regulations.

1. Site Assessment and Preparation – We begin by assessing your water system layout and valve locations. Our engineers identify each TMV, isolate the water supply, and prepare the area for safe servicing.
2. Valve Inspection – Each TMV is dismantled and visually inspected. We check for limescale, corrosion, or debris that could affect temperature control. All filters, strainers, and check valves are examined for blockages or wear.
3. Cleaning and Descaling – We clean and descale every component using approved solutions to remove mineral deposits and bacteria. This prevents temperature drift and reduces Legionella risk.
4. Component Testing and Replacement – The thermostatic cartridge, seals, and strainers are tested for performance. Any damaged or worn parts are replaced with genuine manufacturer-approved components to maintain valve integrity.
5. Temperature Calibration and Testing – Once reassembled, each TMV is tested under live conditions. We measure the outlet temperature to confirm it stays within the safe range (typically 41–44°C) and adjust as needed for precision.
6. System Flushing and Verification – We flush the system to remove air pockets or debris and verify steady, accurate water temperatures at all outlets.
7. Service Reporting and Certification – After testing, we provide a detailed service report that includes temperature readings, work completed, and any recommendations. A compliance certificate is issued for your records.

Our TMV servicing process in ensures long-term reliability, regulatory compliance, and user protection. Contact our team to schedule a professional TMV service today.

How Often Should a Thermostatic Mixing Valve be Serviced?

It is recommended to service thermostatic mixing valves every 6-12 months.

Regular servicing of TMVs in Dorset ensures they function correctly and maintain the safety of the water system.

Factors influencing the frequency of servicing include the usage conditions the valve is subjected to. For example, a valve exposed to hard water or high levels of sediment may require more frequent maintenance.

Another crucial aspect is compliance with regulatory guidelines governing water systems. Meeting these standards often necessitates regular inspections and servicing to guarantee safety and optimal performance.

TMV Servicing Regulations UK

TMVs are governed by strict UK regulations to protect users from scalding and bacterial risks such as Legionella. Regular TMV servicing in Dorset is a legal requirement in many sectors and forms a vital part of water safety management.

• Building Regulations Part G – Part G of the Building Regulations requires all new homes and refurbished domestic properties to have TMVs fitted on baths to prevent scalding. Water must not exceed 48°C at the outlet, ensuring safe delivery temperatures in domestic settings.
• Health and Safety Executive (HSE) Guidance – HSE publication HSG274 Part 2 outlines the need for regular TMV maintenance to control Legionella bacteria in hot and cold water systems. It requires valves to be inspected, cleaned, and tested at least once every 6 to 12 months.
• NHS Estates – HTM 04-01 In healthcare environments, HTM 04-01: Safe Water in Healthcare Premises mandates the use and routine servicing of TMVs on outlets used by patients and residents. Valves must maintain outlet temperatures between 41°C and 44°C to protect vulnerable users.
• British Standards – TMVs must comply with BS EN 1111 and BS EN 1287 standards, which define performance requirements for thermostatic valves used in high and low-pressure systems. Compliance guarantees consistent temperature control and safety.
• Care Quality Commission (CQC) Compliance – Care homes and healthcare providers are required by the CQC to demonstrate that TMVs are regularly tested and maintained. Documented servicing records are essential for inspections and audits.
• Health and Safety at Work Act 1974 – Employers and duty holders have a legal responsibility to protect staff and the public from scalding and bacterial exposure. Proper TMV maintenance forms part of their statutory duty of care.

What is Thermostatic Mixing Valve Servicing?

Thermostatic mixing valve servicing in Dorset involves the maintenance and inspection of valves that control water temperature to ensure safe and efficient water treatment.

During a typical TMV servicing, trained professionals carefully examine the valve components, such as the thermostat, temperature control mechanism, and the mixing chamber, to ensure they are functioning correctly.

This process may include cleaning or replacing any damaged parts, adjusting the temperature settings, and testing the valve’s performance to guarantee precise temperature regulation.

Regular servicing of TMVs is crucial to prevent scalding accidents, bacterial growth in lukewarm water, and to comply with building regulations that mandate the maintenance of these systems.

Contact Us

For all your TMV servicing needs, contact us to speak with one of our customer support specialists who can assist you with scheduling a service or answering any questions.

If you are unsure about the ideal timing for your maintenance or simply need advice on prolonging the lifespan of your TMV, our knowledgeable team is just a call away.

Frequently Asked Questions

What is a Thermostatic Mixing Valve?

A thermostatic mixing valve (TMV) is a device that blends hot and cold water to a pre-set temperature.

Can I Service my TMV Myself?

It is not recommended to service a TMV yourself.

TMVs are complex systems and should only be serviced by trained professionals.

Attempting to service it yourself may result in damage to the valve or improper functioning, which can compromise the safety of the water temperature.

What are the Signs that my TMV Needs Servicing?

If you notice any fluctuations in water temperature, unusual noises, or leaks around the TMV, it may be time for servicing.

It is also important to schedule a servicing if your TMV has not been serviced in over a year.

What are the Consequences of Not Servicing a TMV?

Not servicing a TMV can lead to a range of issues, including inconsistent water temperature, increased risk of scalding, and potential failure of the valve.

It is important to prioritise TMV servicing to ensure the safety and proper functioning of your water system.

Is it a Legal Requirement to Service a TMV?

In the UK, it is a legal requirement to ensure that thermostatic mixing valves (TMVs) are properly maintained and serviced, particularly in settings where they are critical for safety.

What is the Life Expectancy of a Thermostatic Mixing Valve?

The life expectancy of a thermostatic mixing valve is 7-10 years.

TMV life expectancy can vary based on several factors, including the quality of the valve, the conditions in which it operates, and how well it is maintained.

Find More Info

Make sure you contact us today for a number of great thermostatic mixing valve services in South West.

Here are some towns we cover near Dorset

Bournemouth, Christchurch, Poole, Ferndown, Wimborne Minster

For more information on TMV servicing in Dorset , fill in the contact form below to receive a free quote today.