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Daniel Davies Gas

Boiler Repairs

Fast, reliable boiler fault diagnosis and repairs across South Wales. Gas Safe registered and Worcester-accredited — parts and labour to get heating and hot water back on same day where possible.
Boiler Repairs

Boiler Repairs

Specialist boiler repairs for all common faults: no hot water, ignition failure, pressure loss, leaking components and frozen condensate pipes. Daniel Davies is Gas Safe registered and Worcester accredited, providing manufacturer support and long-term warranty handling where applicable. Same-day response for non-emergency callouts and clear, face-to-face quotes. All work is insured and backed by a 12-month workmanship guarantee.

Why Choose us for Boiler Repairs?

Official Worcester accreditation means specialist knowledge of Worcester Bosch systems, direct manufacturer support and proper handling of warranty repairs.

How It Works

How It Works

1. Book a Diagnosis

Contact us with your boiler make, model and symptoms — we prioritise non-emergency same-day visits where possible and arrange a convenient appointment window.

2. On-site Fault Finding

An experienced Gas Safe engineer performs systematic fault diagnosis (pressure checks, electrical checks, PCB and thermocouple testing) and identifies the failed component.

3. Repair, Test & Guarantee

We fit manufacturer-approved parts, restore system pressure, run full safety checks and leave the system working. Repairs are covered by parts and a 12-month workmanship guarantee.

Get Started

Frequently Asked Questions

Find answers to common questions about our services and process.

Yes — for non-emergency callouts we aim for same-day response where diary and parts availability allow. If a visit can’t be achieved the same day, we arrange the earliest possible appointment and give a realistic timescale before attending.

What Our Customers Say

View all reviews
“Dan is very professional and very reliable, great job on to the next plumbing project”
Paulwithers12@gmail.com Cruncher12Google
“I have been with Dan for years. Outstanding service everytime. Always goes out of his way to get the job done and make you smile at the same time. A rare talent in the heating industry.”
Andrew PullmanGoogle
“100% recommend Dan, very professional and gets the job done to a top standard!”
Bethan PictonGoogle
“Excellent service”
George Adkins
“good”
George AdkinsGoogle
“Excellent and professional service”
Xolo Brain Gam3rGoogle

Other Services

Boiler Installation

Supply and fit of new Worcester Bosch and Ideal boilers with full commissioning, manufacturer-backed warranties and Gas Safe certified installation across South Wales.

Boiler Servicing

Annual and one‑off boiler servicing across South Wales. Gas Safe registered and Worcester accredited engineer delivering safety checks, efficiency tuning and manufacturer‑compliant paperwork.

Plumbing Maintenance

Routine plumbing maintenance and minor repairs to protect your home. Fast, certified work across South Wales — from leak fixes to stopcock checks and preventative care.

Get your boiler fixed today

Request a fault diagnosis and same-day non-emergency response where possible. Worcester-accredited, Gas Safe registered and insured — clear quotes and a 12-month workmanship guarantee.
Request a repair