Ventilation
Bathroom ventilation
Correctly specified and installed extract ventilation for bathrooms and shower rooms.
What the issue is
Bathrooms produce large volumes of moisture in short bursts. Effective extraction removes that moisture at source before it condenses elsewhere in the property.
Common symptoms
- Steam lingering long after showering
- Mould on ceilings and sealant
- Peeling paint
- Damp in adjoining rooms
- Fan that is noisy or ineffective
Likely contributing factors
- Undersized or failed fan
- Long or crushed ducting
- No humidity control
- Fan switched only with the light
- Blocked external terminal
Conditions that may be mistaken for it
- Penetrating damp above a shower area
- A leaking shower tray or seal
- Rising damp on a ground-floor bathroom wall
How the issue should be investigated
- Measure existing extract performance
- Inspect ducting route and terminal
- Assess room volume and usage
- Check electrical provision
Potential treatment or repair options
- Humidity-controlled extract fan
- Improved or replaced ducting
- Continuous low-rate extraction
- Overrun or timer control
When treatment may not be appropriate
- Where a leak, not ventilation, is the cause
- Where an existing fan simply needs cleaning or a new terminal
Factors affecting the cost
- Fan type and control
- Ducting route length and complexity
- Electrical alterations
- Making good and decoration
What to expect during an inspection
A short assessment measuring extract rates, checking the duct route and confirming a practical installation position.
Final recommendations always depend on the property, the inspection findings and the confirmed cause. Elevated readings alone do not confirm rising damp, not every mould problem requires extensive treatment, and damp-affected plaster does not always need replacing.
Frequently asked questions
Next step
Not sure which inspection you need? Start with a few questions.
Tell us what you are seeing and we will set out what is likely, what is uncertain and which inspection would answer the question. Speak to us on 0333 335 6152 if you would rather talk it through.