Quality Services at an Affordable Price
At Cosywarm, we are a family-run business with over thirty years of experience in providing high-quality plumbing, heating, and electrical services to domestic and commercial customers in Cardiff and the surrounding South Wales areas. Our team of skilled engineers are trained to the highest level and are committed to delivering exceptional customer service and workmanship.
Our Services
We offer a wide range of services to ensure that your home, business, or property is comfortable, safe, and energy-efficient. From boiler installation and servicing to central heating repairs and maintenance, we have a solution for all your plumbing, heating, and electrical needs.
Plumbing Services
Our team of experienced plumbers can help with a variety of plumbing issues, including:
- Emergency plumbing repairs
- Leak detection and repair
- Boiler installation and servicing
- Central heating repairs
- Pipe repairs
- Blocked drains
- Water heater installations
- Tap washers and seals
- Toilets and shower repairs
Gas Engineers
Our Gas Safe registered engineers are fully qualified to install and maintain gas appliances, including:
- Boiler installation and servicing
- Gas boiler repairs
- Central heating maintenance
- Gas safety certificates
- Gas appliance installations
Electrical Services
Our team of electricians provides a range of electrical services, including:
- Emergency electrical repairs
- Fault finding and rectification
- Electrical installations
- Inspection and testing
- Portable appliance testing
- Electrical appliance servicing
Central Heating Services
At Cosywarm, we offer a comprehensive range of central heating services, including:
- Central heating installation
- Central heating repairs
- Central heating maintenance
- Central heating servicing
- Boiler installation and servicing
Kitchen and Bathroom Plumbing Services
If you are looking to renovate your kitchen or bathroom, our skilled plumbers can help design, source, and install beautiful kitchens, bathrooms, and wet rooms. We offer a complete service including all plumbing, electrical, and tiling work.
Why Choose Us
At Cosywarm, we pride ourselves on our excellent customer service, competitive prices, and exceptional workmanship. We are accredited by trusted household names, including Which? and the Worcester Bosch Group, and offer a ten-year guarantee on our new boiler installations. Our team of experienced engineers are trained to the highest level and are committed to delivering exceptional customer service and workmanship.
Get in Touch
If you are looking for a reliable and professional heating and plumbing company in Cardiff and the surrounding South Wales areas, contact us today to discuss your requirements. We offer free quotes and estimates for all our services.
Professional Quality and Communication
The reviews highlight the excellent work and communication provided by Cosywarm. Many customers have praised the company for their professionalism, quality of work, and attention to detail. Dr. Evans and Julie Sheehan were pleased with the finish and communication during their respective projects, while Tim Kruydenberg appreciated the good friendly service and Matthew Williams was impressed with the excellent all-around service. David K. found the company trustworthy and efficient, and Steve Chamberlain commended their attention to detail and friendly service.
Disappointing Experience
However, Vijay Anand had a disappointing experience with the company, citing negative punctuality and being unable to obtain a start date for their project despite repeated attempts to contact the office and Alex.
Consistent 5-Star Service
It's worth noting that all the 5-star reviews for Cosywarm mention positive experiences, with several customers praising the company's professionalism, quality of work, and communication. This suggests that the company consistently delivers high-quality service.

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