📞 For emergency commercial heating and plumbing repairs call us on 023 8184 9711
📞 For emergency commercial heating and plumbing repairs call us on 023 8184 9711
HeatComp are a commercial plumbing company based in Southampton providing trusted commercial plumbing services across Southampton, Winchester, Bournemouth, Hampshire, and the South Coast.
We keeping buildings running smoothly and safely all year round, from commercial plumbing installation to emergency plumbing repairs, our expert team of commercial plumbers deliver fast, reliable, and compliant solutions for every type of business.
As one of the leading commercial plumbing companies in the South Coast region, we understand that every property, from offices and schools to restaurants and care homes, requires a dependable plumbing system. Our experienced engineers are Gas Safe registered, providing complete peace of mind on all gas safe plumbing works.
We take a proactive, customer-first approach to commercial plumbing, focusing on longevity, compliance, and efficiency. Whether it’s a one-off installation or a long-term maintenance contract, we tailor our services to suit your operational needs.

From design to installation, we handle everything from cold-water systems and pipework to sanitary ware and water heaters.
When the unexpected happens, our 24 hour commercial plumber team is on call to minimise downtime and prevent costly damage.
We diagnose, repair, or replace faulty systems quickly to restore hot water and maintain operational efficiency.
Our Gas Safe registered engineers ensure compliance, safety, and performance for your gas systems.
We help reduce future callouts and extend system lifespan with scheduled maintenance plans and performance improvements.
"We use Heatcomp as our external contractors for the properties we have in Winchester, they are great at what they do! Trish responds very quick and organises the jobs asap and lets me know! She is great! The team are great and have had no complaints about jobs that have been done. Thank you!"
Teresa Tiew








24/7 callout support: our 24 hour commercial plumber service means you’re never left waiting in an emergency.
Fully qualified and Gas Safe registered: every engineer is accredited and compliant with UK regulations.
Transparent and reliable: no hidden costs, no shortcuts, just professional, dependable service.
Trusted by leading businesses: we’re proud to support commercial clients across Hampshire and the South Coast.
Whether you need urgent emergency plumbing repairs or a full commercial plumbing installation, HeatComp’s team is here to help. We’re available 24/7 and cover Southampton, Winchester, Bournemouth, Hampshire, and South Coast areas. Call us today to speak with one of our commercial plumbers, or complete our online enquiry form to schedule a site visit.
Please contact us at info@heatcomp.co.uk if you cannot find an answer to your question.
Yes we do. Take a look at our HeatComp on Demand service. Most professional commercial plumbers provide rapid response call-outs for urgent faults such as burst pipes, blocked drains, water leaks, or loss of water supply. Reliable commercial plumbing contractors typically offer 24/7 emergency commercial plumbing to minimise business disruption, prevent water damage, and maintain health and safety compliance, particularly in environments like healthcare, hospitality, manufacturing, and education.
Yes. Planned preventative maintenance (PPM) is a core service provided by HeatComp. Routine servicing from our commercial plumbing contractors helps detect early signs of wear or leakage, maintain system efficiency, ensure regulatory compliance, reduce emergency call-outs and extend equipment lifespan. Many maintenance programmes include inspections of pipework, valves, pumps, water heaters, backflow devices and temperature control systems.
Our professional commercial plumbing contractors typically handle hot and cold water systems, heating plant and pipework, drainage and waste systems, washroom and sanitary installations, commercial kitchens and catering plumbing, backflow prevention systems, leak detection and repair, pipework upgrades and refurbishments, planned maintenance and compliance testing and emergency commercial plumbing repairs. We cover sectors such as offices, schools, hospitals, hotels, factories, retail and multi-occupancy buildings.
A Thermostatic Mixing Valve (TMV) blends hot and cold water to deliver water at a safe, controlled temperature. TMVs are widely used in commercial environments to prevent scalding and maintain consistent water temperatures in healthcare, leisure and public facilities.
Yes our qualified commercial plumbers commonly service Thermostatic Mixing Valves (TMVs). Regular TMV servicing is essential to ensure correct temperature control, protection against scalding, compliance with health and safety requirements and hygiene standards, especially in healthcare and public facilities.
Common causes include corrosion of pipework, high water pressure or pressure fluctuations, failed joints, seals, or fittings, poor installation or ageing infrastructure, blockages causing pressure build-up, temperature stress or expansion and damaged valves or appliances. Leaks are often more severe in commercial buildings due to higher usage and complex systems, which is why routine inspection by experienced commercial plumbers is essential.
Typical issues faced by businesses include persistent leaks or pipe bursts, blocked drains and grease build-up, backflow risks or contamination, water pressure problems, faulty valves or pumps, temperature control failures, scale build-up in water systems, and non-compliant installations. Many of these issues require urgent emergency commercial plumbing intervention to avoid operational downtime.
Backflow occurs when water flows in the reverse direction, potentially allowing contaminants to enter the clean water supply. This can cause contamination of drinking water, health hazards, regulatory breaches, system damage and business closure risk. Backflow is typically prevented using specialist devices such as RPZ valves, which protect water supplies from contamination caused by back pressure or back siphonage.
Commercial property owners and landlords can ensure they are compliant by appointing a member of the Water Industry Approved Plumbers’ Scheme (WIAPS).
A reputable commercial plumbing contractor should have relevant UK qualifications and trade certification, approved installation practices where required, experience in commercial systems rather than only domestic work, public liability insurance, compliance with Water Supply (Water Fittings) Regulations. HeatComp are members of the Water Industry Approved Plumbers’ Scheme (WIAPS). This provides clients with reassurance that we are competent and we will protect their water supply by ensuring your installations comply with the regulations.
Heatcomp
Unit 16 Freemantle Business Park, Milbrook Road East, Southampton, SO15 1JR
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