Extractor Fan Repair Cost (2026 UK Guide)
Extractor fans play an essential role in reducing moisture and preventing mould in kitchens and bathrooms. When a fan stops working properly, condensation can quickly build up, leading to damp, peeling paint and long-term structural damage.
This 2026 UK guide explains average extractor fan repair costs in the UK, what affects pricing, and when replacement may be necessary.
Average Extractor Fan Repair Cost
| Issue | Repair required | Average UK cost |
|---|---|---|
| Replace bathroom extractor fan | Supply and fit new unit | £120 – £350 |
| Repair faulty wiring | Diagnose and fix electrical issue | £100 – £300 |
| Replace fan motor | Fit new motor unit | £120 – £300 |
| Install new vent ducting | Replace or repair duct | £150 – £400 |
| Upgrade to humidity-sensing fan | Supply and fit upgraded unit | £200 – £500 |
| Repair noisy extractor fan | Service or replace bearings | £80 – £200 |
For a full overview of related repairs, see our Kitchen & Bathroom Repair Cost Guide.
What Causes Extractor Fan Problems?
Extractor fans are exposed to steam, grease and dust buildup.
Common causes include:
- Worn motor bearings
- Electrical faults
- Blocked vent ducts
- Poor installation
- Excess moisture
- Age-related wear
Bathroom fans are especially prone to failure due to constant humidity.
Signs Your Extractor Fan Needs Repair
Early repair prevents condensation damage.
Look out for:
- Fan not turning on
- Excessive noise or rattling
- Steam not clearing quickly
- Condensation on walls and ceilings
- Mould growth near ceiling
- Burning smell when operating
If condensation is persistent, ventilation may be inadequate.
What Affects Extractor Fan Repair Costs?
Several factors influence pricing.
Fan type
Basic wall-mounted fans are cheaper than ceiling or in-line ducted systems.
Electrical access
Hidden wiring increases labour time.
Duct length
Longer duct runs increase installation cost.
Upgrade vs repair
In some cases, replacing the fan is more cost-effective than repairing.
DIY checks you can safely do
- Clean visible dust from fan cover
- Check for blocked external vents
- Test isolator switch
- Listen for unusual noises
- Take photos before requesting quotes
Avoid working on electrical components without proper qualifications.
When this is an emergency
- Burning smell is present
- Electrical sparking occurs
- Water is entering electrical fittings
- Severe mould is spreading rapidly
- Fan has failed in high-moisture environment
Electrical faults require prompt professional attention.