Storage heater not heating up — Cardiff callout and diagnosis
Storage heater not heating up for Victorian and Edwardian terraces across Cathays and Roath and everything else in CF10–CF24, priced after testing rather than before. Covers storage heater not heating up across Cardiff and the surrounding CF10–CF24 postcodes.
Do this before we arrive
- Practically speaking — check whether every heater is cold or just one — that single fact halves the diagnosis.
- Look at the consumer unit for a separate off-peak section or a second board, and check nothing is switched off there. It is checked before anything is signed.
- Around CF10–CF24: note the time the heaters used to come on; if the tariff or meter changed recently, tell us.
Never cover a storage heater or dry clothes on it. The thermal cut-out that protects it is a last line of defence, not a thermostat.
This page is for anyone in Cardiff trying to work out whether storage heater not heating up is their next job or next year's.
Storage heaters charge overnight on a separate off-peak supply and release that heat through the day. Questions asked during the visit get answered during the visit; there is no benefit to either of us in keeping it mysterious. Older installations around CF10–CF24 show this more often than newer ones.
Nothing is charged for on the basis of a guess. Where a reading is borderline, it is reported as borderline. On a Cardiff job that usually shows up as a meter or tariff change.
Where previous work has no certification behind it, we test it rather than take it on trust. That is the difference between a guess and a measurement.
Properties around Cardiff that have changed use — a room converted, an extension added — usually need a wider look than the original request implies. That holds whether the property is owned, let or being sold.
If you have had a quote elsewhere, we are happy to look at it and explain the differences. If it turns out to be a smaller job than expected, the price reflects that.
Written for Cardiff property owners rather than as general advice.
What tends to be behind it
- A failed time switch or contactor no longer switching. We would rather find this on a planned visit than an urgent one.
- On CF10–CF24 addresses the trail usually leads back to one or more open-circuit heating elements inside the unit.
- A tripped thermal cut-out after the heater was covered, which older installations in this area produce fairly regularly.
- Cardiff calls of this kind frequently start with a meter or tariff change.
What gets done
- We test the off-peak supply at the board, which is the difference between a repair and a patch.
- Where elements have failed we advise honestly on repair, and the outcome decides the next step rather than a sales script.
- We test the off-peak supply at the board. You get the figures, not just a verdict.
Money side of it: off-peak supply testing and element checks quoted per visit; element or heater replacement priced after diagnosis.
Why this comes up in Cardiff
Cardiff Council handles building control notification for Cardiff, and notifiable remedial work is registered as part of the job.
Cardiff sits close to M4 J32–J33, which is why we can usually add a CF10–CF24 job to the same day.
Penarth and Pontypridd sit either side of our Cardiff route, so both are same-week bookable.
Questions we get asked
Are storage heaters worth repairing?
Often yes if the unit is a modern high-retention model and only one element has gone. On a very old unit with multiple failures, replacement is usually better value.
Do you work weekends?
Sometimes, where a property in Cardiff cannot be accessed midweek. It is arranged case by case.
What paperwork do I get?
The certification appropriate to the work, listing the circuits tested and the readings recorded, not a receipt with a tick on it.
Is older wiring automatically a problem?
No. Plenty of older Cardiff installations test well. Age is a reason to check, not a verdict.
How quickly can you get to Cardiff?
We come in via the A470 and A48, and Cardiff is on our regular round, so we normally offer a slot within a few days.
Get a written price
Let us know your preferred access times — tenanted property in Cardiff is arranged around the tenant, not around us. We hold Cardiff slots for storage heater not heating up most weeks.