Domestic ventilation – Why do houses need ventilation?

The need for ventilation in our homes has ever more increased. As building regulations are met with the latest loft lagging/insulation and air tightness; ventilation often gets missed. Stale, stagnant air can linger in our homes for days. This has a drastic effect on our health and our homes.

The average family can produce up to six litres of moisture a day. This moisture if not extracted from the home can be detrimental to our health. This moisture not only promotes mould to form but also helps household dust mites to live in humid environments. 

Benefits of a well ventilated home

  • Fresh filtered air
  • Reduce odours around the home
  • Controls condensation
  • Prevents mould growth
  • Improves conditions for asthma and hay fever sufferers
  • Lower humidity levels

How we can help?

We can conduct a assessment of your homes current ventilation in accordance with Approved document F of the building regulations and by using the Domestic Ventilation Compliance guide. By calculating the required ventilation rates we can determine the best system to recommend. If you have a new build or renovation project and would like to discuss domestic ventilation options we would be more then happy to offer our expert help. If you are a local contractor, surveyor or project manger looking for a company who can test, commission and produce sign off paperwork for building control we would also be happy to help. 

MVHR - Mechanical extract with health recovery

Systems we offer

PIV units – Central to a property that takes warm air from a loft space and filters out.

Intermittent and background ventilation – A collection of local extract fans in all wet room spaces. Typical bathroom extraction. Call us to have a bathroom extractor fitted.

MVHR – Mechanical extract with heat recovery – Whole house ventilation. Recovers up to 80% heat lost, which would normally be wasted through normal extraction. 

Extraction systems fitted in Exmouth, Exeter and East Devon

PIV units - Central to a property that takes warm air from a loft space and filters out.


T: 01395 741972
M: 07725 644043
E: Email Us

SW Electrical Services Ltd.
Garden House
Westdown Farm
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