Ventilation
As homes become better sealed, controlled ventilation keeps moisture and stale air moving without throwing away your heat.
- Typical install
- 1 day
- Disruption
- Low
- Often paired with
- Insulation

Helps manage condensation and damp
Supports healthier indoor air
Often required alongside insulation work
Runs quietly in the background
The basics
What ventilation actually does
As homes are insulated and draught-proofed, controlled ventilation becomes more important for managing moisture and air quality.
This is likely to suit you if…
- You see condensation on windows or mould in corners
- You have recently insulated or draught-proofed
- Rooms feel stuffy or smell damp
- Existing extract fans are old or ineffective
Your options
Types of work an installer may recommend
Which option suits you depends on your property's construction, age and condition. A survey confirms what is possible.
Extract fans
Improved fans in kitchens and bathrooms.
Positive input ventilation
A gentle supply of filtered air from a loft-mounted unit.
Mechanical ventilation with heat recovery
Whole-home system recovering heat from extracted air.
Damp is usually a ventilation problem
Before treating surfaces, it is worth understanding where the moisture comes from and how it leaves. Good ventilation deals with the cause rather than the symptom.
Step by step
How the journey usually runs
- 1
Initial eligibility check
- 2
Ventilation assessment
- 3
Installation
- 4
Commissioning and advice
Paying for it
Funding routes that may apply
Funding is never guaranteed. These are the routes most often used for this type of work in the UK.
Usually included as part of a funded insulation package
Local authority damp and mould programmes
Schemes that can cover ventilation
Home Warmth Support Scheme
A sample obligation-style scheme offering insulation and heating improvements to households meeting income or benefit-related criteria.
Who it may suit: Lower-income households and certain benefit recipients in less efficient homes.
InsulationHeatingVentilation
Last reviewed: [Last reviewed date]
Initial results are indicative only. Final eligibility and funding are subject to checks by the relevant scheme, authority, funder or installer.
Be prepared
Questions worth asking an installer
What ventilation standard are you designing to?
How noisy is the system in normal use?
What maintenance and filter changes are needed?
Will it be assessed alongside insulation work?
Every installer listed with us is checked for accreditation and insurance before they appear in your matches.
Questions
Common questions
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