Boiler Installation in Cardiff & Surrounding Areas
At Rosoman Plumbing & Heating, we specialise in repairs and new replacement boilers for homes across Cardiff and nearby areas. Whether your old boiler has broken down, become unreliable or too expensive to run, we’ll help you choose the right boiler and install it safely and efficiently.
As Gas Safe registered heating engineers, we install modern, energy-efficient boilers designed to keep your home warm, your hot water reliable and your bills under control.
Based in Whitchurch, Cardiff – typically working within a 15 mile radius.
Free, no-obligation boiler quote
We’ll visit your home, assess your existing system and recommend the most suitable boiler for your property and budget.
- ✔ Honest advice – no pushy sales
- ✔ Clear, itemised quotation
- ✔ Installation by Gas Safe engineers
Gas Safe Registered (953287) • WaterSafe & WIAPS Certified (C6593) • Public liability insurance up to £2,000,000
New & Replacement Boilers We Install
Every home is different. We’ll recommend a boiler that suits your property, hot water demand and budget – and explain your options in plain English.
Combi boilers
Ideal for most modern homes, combi boilers heat water directly from the mains – meaning no hot water tank and more space in your airing cupboard or loft. Great for flats and small to medium-sized houses.
System boilers
Best for homes with higher hot water demand and multiple bathrooms. These work with a hot water cylinder and can deliver strong flow to several taps or showers at once.
Regular / conventional boilers
Often found in older properties with cold water storage tanks in the loft. We can replace like-for-like, or discuss options to convert to a combi boiler where suitable.
What’s Included in Your Boiler Installation
- ✅ Home survey and honest advice on the right boiler for your property
- ✅ Safe removal and disposal of your old boiler
- ✅ Professional installation of your new boiler and required pipework
- ✅ Flue installation and safety checks
- ✅ System flush and inhibitor added where required
- ✅ Setup of your new controls / thermostat
- ✅ Benchmark commissioning and registration
- ✅ Clear handover and explanation of how to use your new boiler
All work carried out by fully qualified Gas Safe registered engineers.
Our Boiler Installation Process
1. Initial conversation
Get in touch by phone, email or our contact form. We’ll ask a few quick questions about your current boiler, property and hot water use.
2. Home survey
We visit your home to check your existing system, pipework, flue route and water pressure. This ensures we recommend the right boiler for you.
3. Fixed quotation
You’ll receive a clear, itemised quote with no hidden extras. We’ll explain everything in plain language so you know exactly what you’re getting.
4. Installation day
We arrive on time, protect your home with dust sheets and carry out the installation safely and efficiently. We’ll keep disruption to a minimum.
5. Testing & handover
Your new boiler is fully tested, commissioned and registered. We’ll show you how to use your controls and leave everything clean and tidy.
6. Aftercare
We’re on hand for servicing, future maintenance and any questions you may have once the boiler is up and running.
Why Choose Rosoman Plumbing & Heating for Your Boiler Install?
- ✔ Local, independent business based in Whitchurch, Cardiff
- ✔ Gas Safe, WaterSafe and WIAPS registered
- ✔ Fully insured with public liability cover up to £2,000,000
- ✔ Friendly, honest advice with no pushy sales
- ✔ Clean, tidy work – we treat your home with respect
- ✔ 5★ rated service from customers across Cardiff and surrounding areas
Boiler Installation – Frequently Asked Questions
If you’ve got a question that isn’t covered below, just get in touch – we’re happy to help.
How long does a boiler installation take?
Most boiler swaps are completed in one day.
If it’s a conversion — for example, replacing a system or regular boiler with a combi — it usually takes two to three days depending on pipework, flue routing, and any upgrades required.
What type of boiler is best for my home?
This depends on your property size, water pressure, and hot water demand:
Regular boilers – ideal for larger homes with existing tanks.
We’ll assess your home and recommend the most efficient model for your needs and budget.
Combi boilers – perfect for smaller homes and flats (instant hot water, no tank).
System boilers – great for medium homes with multiple bathrooms.
Do you offer finance or payment options?
We work with trusted finance partners to make boiler installations more affordable. You can spread the cost with monthly payments — ideal if you’d rather not pay everything upfront. Ask us for details when requesting a quote.
Do you offer servicing and maintenance after the installation?
Yes, absolutely. We don’t just install your boiler — we look after it for years to come. Rosoman Plumbing & Heating provides annual servicing, safety checks, and ongoing maintenance to keep your boiler running efficiently and safely. Regular servicing helps to:
- Maintain your manufacturer’s warranty
- Reduce the risk of breakdowns
- Keep your energy bills low
- Extend your boiler’s lifespan
We’ll even send you a reminder each year when your service is due, so you never miss it.
Ready for a New Boiler?
If your boiler is unreliable, inefficient or costing you money in repairs, it may be time to replace it. Let us take a look and give you straightforward, local advice.
