Same-day where possible · Gas Safe registered (reg. no. 654324)
Boiler repairs in Edinburgh
No heat, no hot water, a leak, pressure loss, an error code or a boiler that won't fire? We diagnose it properly and give you a fixed price to fix it.
Is this your boiler?
- No heating or hot water
- Boiler leaking or dripping
- Losing pressure / needs topping up often
- Fault codes and lockouts
- Pilot light won’t stay lit
- Banging, whistling or gurgling noises
- Radiators cold at the bottom / not heating evenly
- Thermostat or timer not working
That’s the sort of thing we get called out to every day. Call 0131 258 9862 for the quickest response, or send the details below.
How a repair visit works
- Call us and describe what’s happening, and we’ll book the earliest slot.
- The engineer diagnoses the fault and explains it in plain terms.
- You get a fixed price to repair before any parts go in.
- We fix it, test it, and check the boiler is safe to run.
Not sure whether to repair or replace? Read our guide →
Enquiry
Book a repair
Quickest is to call. If you can’t right now, send the fault details and we’ll get back to you to book the earliest slot.
Prefer to talk? 0131 258 9862 Call 24/7 for gas & heating emergencies
Reviews
700+ reviews that speak for themselves
Common questions
How quickly can you come out?
We aim to reach you the same day where we can, and always give you a realistic time when you call. Priority goes to no-heat and no-hot-water calls.
How does pricing work?
We diagnose the fault first, then give you a fixed price to repair it before any parts go in. Nothing goes ahead until you say so.
What if the boiler can’t be economically repaired?
We’ll tell you straight, show you why, and give you a no-pressure quote for a replacement so you can compare. See our repair-vs-replace guide.
About 123-Gas
Gas and heating done properly
We pride ourselves on excellent customer service and quality workmanship, and our reviews and repeat customers speak to that. We handle boiler installation, servicing, repairs and plumbing work across Edinburgh, Midlothian & the Lothians.
Boiler down? Call now.