Showroom open Monday to Friday 9am to 5pm. Plumbwise serve the South Wales region including Carmarthen, Swansea, Neath, Bridgend, Cardiff and Newport.

Boilersplumbwise2026-02-05T10:56:22+00:00

New Boilers

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Boilers replacements, maintenance, service and repair

Plumbwise is a trusted, Gas Safe registered heating specialist serving homeowners across Wales. We focus on one thing: getting your home’s heating right the first time. From system design through to supply and installation, our approach is practical, transparent, and built around long-term performance, not quick fixes.

We combine technical knowledge with real-world experience to design heating solutions that deliver efficiency, reliability, and value. Whether you’re upgrading an outdated boiler, planning a renovation, or installing a complete new system, our team provides clear advice and tailored recommendations that match your property, lifestyle, and budget. We work with all leading brands and use smart system planning to ensure every component works together seamlessly.

The result? Lower energy costs, improved comfort, and total peace of mind. With Plumbwise, you’re not just buying a boiler, you’re investing in a professionally engineered heating solution backed by expertise you can trust.

Gas Safe registered engineers with proven technical expertise
Full heating system design and specification service
Supply and installation of all leading boiler and heating brands
Honest advice tailored to your home and budget
Reliable, end-to-end project delivery with ongoing support

Gas boilers from these quality brands

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Replacement boilers from Viessmann

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What our customers say about us

Frequently asked questions about replacement boilers

How do I know if my boiler needs replacing?plumbwise2026-02-02T12:59:02+00:00

How do I know if my boiler needs replacing?

If your boiler is over 10–15 years old, breaking down regularly, making unusual noises, or your energy bills are rising, it’s likely time to upgrade. Modern systems are far more efficient and reliable.

What type of boiler is right for my home?plumbwise2026-02-02T12:59:22+00:00

What type of boiler is right for my home?

It depends on your property size, water demand, and existing system. Combi boilers suit smaller homes, while system or regular boilers are better for larger households with multiple bathrooms. A professional assessment ensures the correct fit.

How energy efficient are new boilers?plumbwise2026-02-02T12:59:55+00:00

How energy efficient are new boilers?

Most modern boilers are over 90% efficient, meaning less wasted energy and lower heating bills compared to older models that can run below 70% efficiency.

How long does a boiler installation take?plumbwise2026-02-02T13:00:17+00:00

How long does a boiler installation take?

A straightforward replacement typically takes one day. More complex system upgrades or relocations may take 2–3 days.

Do I need a Gas Safe registered engineer?plumbwise2026-02-02T13:00:39+00:00

Do I need a Gas Safe registered engineer?

Yes. By law, all gas work must be carried out by a Gas Safe registered engineer to ensure safety, compliance, and warranty protection.

How often should my boiler be serviced?plumbwise2026-02-02T13:01:00+00:00

How often should my boiler be serviced?

Annually. Regular servicing keeps your boiler safe, efficient, and helps prevent costly breakdowns while maintaining the manufacturer’s warranty.

Will a new boiler reduce my energy bills?plumbwise2026-02-02T13:01:22+00:00

Will a new boiler reduce my energy bills?

In most cases, yes. Upgrading to an efficient system and correctly sizing it for your home can significantly lower monthly running costs.

Can you help design a full heating system, not just supply a boiler?plumbwise2026-02-02T13:01:41+00:00

Can you help design a full heating system, not just supply a boiler?

Absolutely. We assess your home, recommend the right setup, and design a complete heating solution — ensuring every component works together for maximum comfort and efficiency.