Combi boilers are reliable, but they do develop faults especially as they age. Because they handle both heating and hot water, when one goes wrong you lose both at once. We repair combi boilers from all manufacturers across Cardiff, carrying the most common spare parts in our vans so we can often fix the fault on the first call. Call +44 7812 510121 and describe the problem we’ll give you an honest assessment before we arrive.
When You Need Combi Boiler Repair
Common combi boiler faults include no heating, no hot water, intermittent hot water, fault codes on the display, the boiler locking out and needing constant resetting, a drop in system pressure, and unusual noises. Many of these faults in Cardiff homes are caused by hard water scale build-up on the heat exchanger, diverter valve wear, or PCB faults.
Our Combi Boiler Repair Process
We carry diagnostic tools and a range of parts for the most commonly fitted combi boilers in Cardiff. We read fault codes, check pressures and flow rates, inspect the heat exchanger and diverter valve, and identify the root cause. We quote for the repair before starting, complete the work, and test the system fully before leaving.
Combi Boiler Repair Cost in Cardiff
Repair costs depend on the fault and the parts needed. We charge for the callout and assessment, then quote separately for the repair before we touch anything. Most repairs are completed in a single visit.
Why Choose Us
Combi boiler repairs are a daily job for us across Cardiff. We know the faults that affect the most popular models and we stock the parts that come up most often. Same-day service in most cases.