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Trusted Plumbing & Heating Experts in Cardiff
Established over 30 years ago, Cosywarm Heating & Plumbing has built a reputation as a trusted provider of comprehensive heating and plumbing solutions in Cardiff and surrounding areas. Our Gas Safe Register Approved engineers deliver expert services ranging from boiler installations and emergency repairs to full bathroom and kitchen renovations. We prioritise customer satisfaction through competitive pricing, free quotations, and a 24/7 emergency response service covering plumbing, electrical, and gas engineering needs. Our team's extensive experience is complemented by accreditations from industry leaders like Which? and Worcester Bosch Group, ensuring work meets the highest standards. We guarantee all installations with a 10-year warranty and maintain transparency through no-obligation callouts and clear communication.

Our integrated approach combines plumbing, electrical, and tiling services under one roof, offering clients time and cost efficiencies. With a deep understanding of local property requirements, we adapt our services to suit both domestic and commercial settings. Our commitment to quality extends to central heating systems, underfloor heating, and energy-efficient solutions tailored to modern living needs. We continuously invest in staff training to maintain technical excellence while preserving traditional craftsmanship. This combination of experience, accreditation, and customer-focused service positions Cosywarm Heating & Plumbing as a leading choice for comprehensive building services in South Wales.
Services
Plumbing Heating Installation Boiler Servicing Bathroom Fitting Kitchen Installation Gas Safety Certificates Electrical Services Emergency Repairs Central Heating Underfloor Heating
Highlights and features
  • We have over 30 years of experience in heating and plumbing
  • We offer 24/7 emergency plumbing, electrician, and gas engineer services
  • Our team is Gas Safe Register Approved
  • We provide free quotes for all our services
  • Our new boiler systems come with a ten-year guarantee
Associations and certifications
  • Which?
  • Worcester Bosch Group
  • Gas Safe Register
Services
Plumbing Services
Our Gas Safe registered plumbers handle all domestic and commercial plumbing needs across Cardiff. From emergency leak repairs and radiator installations to full bathroom renovations, we provide comprehensive solutions for both new builds and existing properties. Our services include drain cleaning, hot water systems, and underfloor heating installations, all performed by fully qualified engineers with over 30 years' combined experience.
Boiler Installation
As Worcester Bosch accredited installers, we offer professional boiler replacements and new system installations. Our engineers assess your property's requirements to recommend the most efficient heating solution, providing 10-year guarantees on all new boiler systems. We specialise in both conventional and combi boiler installations, ensuring optimal performance and energy efficiency for residential and commercial clients across South Wales.
Emergency Repairs
Cosywarm Heating & Plumbing provides urgent response for plumbing, electrical, and gas emergencies in Cardiff. Our 24/7 service handles burst pipes, heating failures, and electrical faults with rapid call-out times. Gas Safe engineers and qualified electricians are available at all hours to resolve critical issues safely and efficiently, minimising property damage and disruption to daily operations.
Bathroom Fitting
We offer complete bathroom renovation services including design, supply, and installation. Our team creates customised solutions using state-of-the-art design software, with options ranging from luxury suites to cost-effective upgrades. The service includes plumbing, electrical work, and tiling, all completed by our employed specialists who ensure compliance with building regulations and accessibility standards.
Electrical Services
Our qualified electricians provide domestic and commercial electrical services across South Wales. From full rewires and LED lighting installations to emergency power failures and security system fitting, we handle all aspects of electrical maintenance. We offer PAT testing, consumer unit replacements, and emergency lighting solutions, ensuring compliance with current regulations and safety standards.
Questions
Do you offer emergency plumbing services?
Yes, we provide 24/7 emergency plumbing services for urgent issues like burst pipes, leaks, and heating failures across Cardiff and South Wales.
Are your engineers Gas Safe registered?
All our gas engineers are Gas Safe Register Approved, ensuring safe and legal installation, repair, and maintenance of gas appliances and systems.
What areas do you serve?
We primarily serve Cardiff and surrounding areas in South Wales, covering both domestic and commercial properties for all our heating and plumbing services.
Do you provide free quotations?
Yes, we offer free, no-obligation quotations for all our services, including boiler installations, bathroom renovations, and emergency repair work.
What accreditations do you hold?
We're accredited by Which?, Worcester Bosch Group, and maintain Gas Safe Register approval for all our plumbing and heating engineers.
Do you install electric vehicle charging points?