Home Ventilation installation Portsmouth
Ventilation installation in Portsmouth
Extractor fans, PIV units and heat recovery systems. We pass your request to installers who cover Portsmouth.
Terraced houses, flats and HMOs make up most of Portsmouth's housing. Many have had double glazing and sealed fireplaces fitted over the years, which keeps heat in but also traps moisture from cooking, washing and breathing.
Portsmouth's densely packed streets, with houses sharing walls on both sides, leave fewer outside walls for air to come in through. Moisture builds up fastest in the back rooms.
Portsmouth at a glance
- Terraced housing
- 43.4% of Portsmouth households (37,361) lived in a terraced house in 2021. Only 4.5% lived in a detached house. Source
- Flats
- 26.5% of households lived in a purpose-built block and 6.3% in a converted or shared house, about 35% in flats of all kinds. Source
- Local grant
- Portsmouth City Council leads a Warm Homes: Local Grant consortium of councils across the South East with £34,807,254 of funding. The scheme runs as Warmer Homes, delivered by Agility Eco. Source
PIV in a terrace
Positive input ventilation pushes a steady flow of filtered air into the landing from a unit in the loft. In a two-storey terrace that is often enough to stop window condensation.
In houses with a loft conversion, a wall-mounted PIV unit can be used instead.
Trickle vents and window seals
If you have had new windows fitted, check whether they have trickle vents in the frames and keep them open. Windows replaced without vents are a common reason condensation gets worse after a refit.
Where there are no vents, an installer can sometimes retrofit them, or a through-wall vent can be added to the worst room.
Fans that actually work
Bathroom fans should extract at least 15 litres a second, and kitchen extraction at least 30 litres a second with a hood. Many older fans fall short, especially with long duct runs.
Fans with a humidity sensor turn on by themselves when someone showers. In a shared house, that is more reliable than a pull cord.
MVHR for deep retrofits
If you're insulating walls and replacing windows, MVHR keeps the air fresh while recovering heat from the outgoing air. It needs ducts to every room, so it is best fitted during major work.
Portsmouth homes and what they need
Victorian and Edwardian terraces
Rear kitchens and bathrooms in single-storey extensions are cold. Ventilation plus insulation stops the mould that often appears there.
Converted houses and purpose-built flats
Internal bathrooms need ducted fans, sometimes through other flats. In council blocks, ask the landlord before changing anything.
1930s semis on the mainland side
Loft PIV units are straightforward here. Check the loft has enough insulation first.
Areas covered
Engineers who cover Portsmouth work across areas including Southsea, Fratton, North End, Copnor, Milton, Eastney, Hilsea, Cosham, Drayton and Farlington.
Questions people in Portsmouth ask
Does Warmer Homes fund ventilation in Portsmouth?
It can. The scheme Portsmouth City Council leads lists ventilation upgrades alongside insulation for eligible households.
Will PIV make my home colder?
Most units warm the incoming air slightly in winter, and the drier air feels warmer. Running costs are low.
Sources
Also nearby: Ventilation installation in Southampton, Ventilation installation in Brighton, Ventilation installation in Bournemouth