Find 8 HVAC Contractors You Can Count On in Watford

Gas Mark 1 is a family-run plumbing and heating specialist based in Watford, Hertfordshire. With over 20 years of experience, we provide boiler installations, central heating systems, bathroom and kitchen renovations, and emergency repair services. Our Gas Safe Registered engineers deliver reliable, high-quality solutions tailored to residential customers across Hertfordshire and surrounding areas.

AC Solutions Group specialises in the supply, installation, and maintenance of fixed air conditioning systems for residential and commercial clients. Based in Watford and London, we deliver energy-efficient HVAC solutions tailored to client needs, supported by emergency hire services and TM44 compliance audits. Our commitment to quality is reinforced by industry accreditations and a 40-year heritage of technical innovation.

TWF Air Conditioning Services provides expert installation, maintenance, and repair of energy-efficient air conditioning systems for residential and commercial clients in London, Hertfordshire, and the Home Counties. Specialising in tailored solutions since 2012, we use premium brands to ensure reliability and comfort. Our F Gas-accredited team offers 24-hour emergency response and maintenance plans to sustain system performance year-round.

Infrared4Homes is the UK's premier provider of infrared heating solutions, offering a wide range of energy-efficient panels and commercial heaters. We specialise in far-infrared technology that heats objects and walls rather than air, ensuring consistent warmth and reduced energy bills. Our products, including mirror panels, towel warmers, and portable units, cater to homes, conservatories, and outdoor spaces.

Capital Heating is a trusted provider of gas heating, plumbing, and maintenance services across North West London and Hertfordshire. Established in 1995, we deliver installation, servicing, and emergency repairs for domestic and commercial clients, supported by Gas Safe accreditation and a team of 30+ qualified engineers. Our sister company, CH Maintenance, specialises in property maintenance contracts for housing associations and landlords.

FirmusHeat is a trusted plumbing and heating company serving Watford, North London, and surrounding areas. We specialise in boiler installations, central heating systems, and emergency repairs, combining 14 years of experience with Gas Safe certified expertise. Our services prioritise reliability, competitive pricing, and 24/7 emergency support for both domestic and commercial clients.

TDC Plumbing & Heating provides expert plumbing, heating, and gas services in London. Established in 2018, we combine technical expertise with a customer-centric approach to deliver reliable solutions for residential and commercial clients. Our services include boiler installations, emergency repairs, and gas safety certifications, supported by Gas Safe accreditation.

Avenue Heating provides professional boiler installations, servicing, and plumbing solutions across Hertfordshire. Specialising in underfloor heating, smart heating systems, and emergency repairs, we prioritise fixed pricing and transparency. With 400+ five-star reviews, our Gas Safe registered team ensures reliable, efficient heating solutions for homes and businesses.