Design Heat Winchester Ltd is a family-run company. For over 50 years we’ve been based in central Winchester, servicing Hampshire, Dorset and surrounding areas. We are accredited Gas Safe, Oftec, and MCS registered engineers.
We have decades of experience, and we’re more than a local plumbing company. Our in-house team specialises in complete system design using the latest computer aided technologies. We work with both residential and commercial properties, from 18th century mansions to new build estates. Our installation and maintenance services cover all aspects of plumbing, heating, and ventilation for gas, oil, and heat pump systems.
Design Heat is committed to providing high-quality, reliable, and affordable plumbing, heating, and ventilation services to residential and commercial customers in the south coast. We pride ourselves on our customer service and our commitment to exceeding our customers’ expectations.
Design Heat Winchester has a team of experienced and qualified engineers who are passionate about providing high-quality workmanship. We are all committed to providing our customers with the best possible service.
There are many reasons to choose Design Heat Winchester for your plumbing, heating, and ventilation needs. Here are just a few; We are a family-run company with a strong reputation for quality and reliability. We are accredited Gas Safe, Oftec, and MCS registered engineers. We offer a wide range of services to meet your needs. We are committed to providing excellent customer service. We offer competitive prices.
If you are looking for a reliable and trustworthy company to provide your plumbing, heating, and ventilation needs, please contact DesignHeat Winchester today.

Design, installation, and repair of all heating systems, including gas, oil, and air source heat pump systems.
Design, installation, and repair of all ventilation systems, including extractor fans, air conditioning units, and heat recovery systems.
Unlike other companies in our industry, we have an in-house design service. This utilises advanced CAD technology to create precise plans for your plumbing and heating systems.