Gas Boiler Repair Dublin
Woke up to a freezing house, a flashing boiler error code, or banging noises from the flue? Our RGI-registered breakdown engineers (#3148) carry genuine spares for Worcester Bosch, Ideal, Viessmann, Baxi, Vokera, Glow-worm, and Potterton boilers—aiming for a permanent first-visit fix with zero call-out fee.
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Pre-selected for Boiler Repair
Dublin Plumbing & Gas provides 24/7 RGI-certified gas boiler breakdown repairs across Dublin with zero call-out fee. Our engineers diagnose lockouts, pressure drops, diverter valve failures, fan/PCB faults, and frozen condensate pipes on the spot, providing a fixed upfront repair quote before fitting any parts.
What's Included in Our Gas Boiler Repair Dublin Service
- Full electronic fault-code diagnostics (EA, F1, F22, F28, L2, E119, and more)
- Replacement of faulty fans, PCBs, gas valves, ignition electrodes, and pumps
- Diverter valve, plate heat exchanger, and expansion vessel replacements
- Resolution of constant boiler pressure drops and weeping PRV discharge pipes
- Frozen condensate pipe thawing and external insulation lagging
- Full flue gas analyser safety check and 12-month warranty on all fitted parts
Need Urgent Advice or Same-Day Dispatch?
Speak directly with our RGI engineering desk or fill in the 60-second quote calculator at the top of this page.
Our 4-Step Engineering Process
Rapid RGI Dispatch (60–90 Mins)
Tell us your boiler make, model, and error code so our nearest RGI engineer arrives with matching parts on board.
Fault Diagnostics & Upfront Quote
We test electrical, gas, and hydraulic components with zero call-out fee and give you a fixed price for the repair.
Genuine Parts Replacement
We fit manufacturer-approved replacement components or clear airlocks/blockages on the first visit.
Combustion & Safety Verification
We run a digital flue gas analysis, check gas working pressure, and confirm your radiators and hot water are hot.
Frequently Asked Questions
Why does my gas boiler keep losing pressure and locking out?
Constant pressure loss below 1.0 bar is usually caused by a failed expansion vessel (where pressure spikes to 3 bar when hot and dumps water outside via the pressure relief valve) or a hidden weep on a radiator valve. We re-charge or replace expansion vessels and seal PRVs same-day.
Do you charge a call-out fee if my boiler cannot be repaired?
No. We never charge a call-out fee. If your boiler is obsolete or beyond economical repair, we give you an honest assessment and a free fixed quote for an A-rated replacement.
Which gas boiler brands do your RGI engineers repair?
We repair all domestic and commercial gas boilers installed in Ireland, including Worcester Bosch, Ideal, Viessmann, Baxi, Vokera, Ariston, Glow-worm, Vaillant, and Potterton.
Helpful Homeowner Guides & Cost Breakdowns
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Ready to Book Your Gas Boiler Repair Dublin?
Complete our quick online form for a fast callback and fixed price quote, or call our 24/7 dispatch line right now.