Bathroom Repair Cost Calculator
Pick the symptom and this prices the likely repair, names the trade that actually does it, and says when the honest answer is to replace instead.
Open the calculator →Price your bathroom fault in 30 seconds
4 steps. Symptom, urgency, how long it has been leaking, and region.
How this calculator works
The calculator prices by symptom because that is all you can know before someone looks. It also names the trade, which matters more than it sounds — calling a plumber for failed grout, or a tiler for a leaking waste, wastes a call-out fee before anyone starts.
If water is actively escaping, turn off the stopcock first and diagnose second. Most of the cost of a bathroom leak is not the repair, it is what the water reached while nobody knew.
On electrics: extractor fans and anything else electrical in a bathroom are notifiable under Part P. Ask who is certifying the work and get the certificate.
Bathroom repair cost by problem (2026)
| Problem | Typical 2026 cost | Notes |
|---|---|---|
| Dripping tap, leaking waste, running toilet | £70–£180 | Plumber |
| Shower not heating or losing pressure | £90–£350 | Plumber |
| Failed silicone around bath or tray | £80–£180 | Bathroom fitter or tiler |
| Cracked, loose or missing tiles | £120–£400 | Tiler |
| Grout discoloured or crumbling | £180–£450 | Tiler |
| Extractor fan not working | £90–£250 | Electrician — notifiable under Part P |
| Water staining the ceiling below | £150–£900+ | Plumber first, then builder |
| Plumber call-out / first hour | £60–£120 | London at the top of the range |
| Emergency / out-of-hours call-out | £120–£300 | Plus hourly rate on top |
Figures match our bathroom repairs guide. Bathroom electrics are notifiable under Part P — ask who is certifying.
Bathroom repair calculator FAQs
A plumber first, to find and stop it. Making good — tiles, grout, ceiling — comes after, and is often a different trade. Calling the second trade first means paying two call-outs.
When water has got behind the tiles and the tanking has failed, when the floor is soft or the ceiling below is repeatedly marked, or when you are calling someone out every few months. At that point patching is money spent twice.
Raking out old grout without chipping tiles is slow, careful work — half a day to a day of labour. The room being small does not make it much faster.
Yes, and it is the one job on this list that is genuinely DIY-able. The trick is removing every trace of the old silicone and getting the surfaces completely dry, which is what most failed DIY re-seals get wrong.
Related cost guides
- Bathroom repairs guide — which trade fixes what
- Tiling costs — re-grout and re-tile priced
- Full bathroom costs — when repair stops being worth it
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