Google Reviews
✓
Gas Safe Registered
✓
Serving Cardiff & Surrounding Areas
✓
20 Years Experience
Unvented Hot Water Services in Cardiff
Say goodbye to low pressure. Experience high-performance hot waterthroughout your entire home with our expert unvented cylinder installations.
About
High-Pressure Hot Water, Delivered On Demand.
If your household struggles with weak water pressure or "running out" of hot water when multiple taps are on, an unvented hot water cylinder is the ultimate solution. Unlike traditional gravity-fed systems, unvented cylinders connect directly to your mains water supply, providing incredible pressure to every shower and faucet in your home.
At Heat Safe Cardiff, we are fully qualified and G3 registered to install, service, and repair unvented systems. Because these systems operate under high pressure, safety and precision are our top priorities. Whether you're looking for a new installation or need an annual safety check on your existing cylinder, Matt and the team provide 20 years of technical expertise.
Why Upgrade to an Unvented System?
- Powerful Showers: Balanced high pressure at every outlet without the need for noisy pumps.
- Space Saving: No need for a bulky cold water tank in your loft—freeing up valuable storage space.
- Faster Reheat Times: Highly insulated cylinders that keep water hotter for longer, reducing energy waste.
- Reliability: Robust, stainless steel construction designed to last for decades.
Based in Cardiff, we provide professional unvented hot water solutions to homeowners across South Wales, ensuring your system is safe, legal, and performing at its peak.
Brands we work with
We only install the best brands. We’re proud to work with...
Want to discuss your plumbing job?
Get in touch today
Local engineers. Honest work. No surprises.
Heat Safe Cardiff is a Cardiff-based heating and plumbing company
built on a straightforward principle — do good work, be honest about
costs, and leave the place cleaner than we found it. Our Gas Safe
registered engineers bring years of experience to every job, whether it's
a brand new boiler installation or a quick annual service.
Contact Us Today →
How We Work
Simple, transparent, professional
We believe getting heating work done should be stress-free. Here's what to
expect when you work with us.
01
Get in touch
Call, email or fill in our quick
form. Tell us what you need — we respond within the hour.
02
Free quote
We give you a clear, fixed
quote before any work starts. No hidden fees. No surprises.
03
We do the job
Our Gas Safe engineers arrive on time, work cleanly, and treat your home with respect.
04
Done properly
We only sign off when
everything is right. Paperwork, certificates, and aftercare included.
Read more about how we work →
Customer Reviews
Trusted across Cardiff
Don't take our word for it — here's what our customers say.
More Reviews
★★★★★
“Matt's been a massive help throughout the whole process, providing a professional service and clear communication on timeframes and pricing.”
★★★★★
“We had ongoing boiler issues that others couldn’t solve, but Matthew managed to get to the root cause and fix it.”
★★★★★
“Matt has carried out several jobs for my family and I, from bathroom fits and ensuite renovations to boiler services and replacing radiators.”
How We Work
Simple, transparent, professional
We believe getting heating work done should be stress-free. Here's what to
expect when you work with us.
01
Get in touch
Call, email or fill in our quick
form. Tell us what you need — we respond within the hour.
02
Free quote
We give you a clear, fixed
quote before any work starts. No hidden fees. No surprises.
03
We do the job
Our Gas Safe engineers arrive on time, work cleanly, and treat your home with respect.
04
Done properly
We only sign off when
everything is right. Paperwork, certificates, and aftercare included.
Read more about how we work →
Google Reviews
✓
Gas Safe Registered
✓
Serving Cardiff & Surrounding Areas
✓
20 Years Experience
Unvented Hot Water Services in Cardiff
Say goodbye to low pressure. Experience high-performance hot waterthroughout your entire home with our expert unvented cylinder installations.
About
High-Pressure Hot Water, Delivered On Demand.
If your household struggles with weak water pressure or "running out" of hot water when multiple taps are on, an unvented hot water cylinder is the ultimate solution. Unlike traditional gravity-fed systems, unvented cylinders connect directly to your mains water supply, providing incredible pressure to every shower and faucet in your home.
At Heat Safe Cardiff, we are fully qualified and G3 registered to install, service, and repair unvented systems. Because these systems operate under high pressure, safety and precision are our top priorities. Whether you're looking for a new installation or need an annual safety check on your existing cylinder, Matt and the team provide 20 years of technical expertise.
Why Upgrade to an Unvented System?
- Powerful Showers: Balanced high pressure at every outlet without the need for noisy pumps.
- Space Saving: No need for a bulky cold water tank in your loft—freeing up valuable storage space.
- Faster Reheat Times: Highly insulated cylinders that keep water hotter for longer, reducing energy waste.
- Reliability: Robust, stainless steel construction designed to last for decades.
Based in Cardiff, we provide professional unvented hot water solutions to homeowners across South Wales, ensuring your system is safe, legal, and performing at its peak.
Brands we work with
We only install the best brands. We’re proud to work with...
Want to discuss your job?
Get in touch today
Customer Reviews
Trusted across Cardiff
Don't take our word for it — here's what our customers say.
More Reviews
★★★★★
“Matt's been a massive help throughout the whole process, providing a professional service and clear communication on timeframes and pricing.”
★★★★★
“We had ongoing boiler issues that others couldn’t solve, but Matthew managed to get to the root cause and fix it.”
★★★★★
“Matt has carried out several jobs for my family and I, from bathroom fits and ensuite renovations to boiler services and replacing radiators.”
About Us
Local engineers. Honest work. No surprises.
Heat Safe Cardiff is a Cardiff-based heating and plumbing company
built on a straightforward principle — do good work, be honest about
costs, and leave the place cleaner than we found it. Our Gas Safe
registered engineers bring years of experience to every job, whether it's
a brand new boiler installation or a quick annual service.
Contact Us Today →
How We Work
Simple, transparent, professional
We believe getting heating work done should be stress-free. Here's what to
expect when you work with us.
01
Get in touch
Call, email or fill in our quick
form. Tell us what you need — we respond within the hour.
02
Free quote
We give you a clear, fixed
quote before any work starts. No hidden fees. No surprises.
03
We do the job
Our Gas Safe engineers arrive on time, work cleanly, and treat your home with respect.
04
Done properly
We only sign off when
everything is right. Paperwork, certificates, and aftercare included.
Read more about how we work →