Ventilation Nottingham: Fans, PIV and MVHR Fitted

Shared student houses produce a lot of moisture. Five people showering, cooking and drying clothes inside add litres of water to the air each day, and in Lenton or Radford that often happens in a Victorian terrace with one small bathroom fan. Condensation and mould follow.

Council flats built in the 1960s and 70s have their own issues: ducts that have been blocked by later refits, and fans that have long stopped working.

Nottingham at a glance

Renting: 28.6% of Nottingham households rented privately in 2021 and 25.5% rented socially, including 18.3% from the council. 45.1% owned their home. Source
House types: 27.4% of households live in a terraced house, 33.3% in a semi and 15.6% in a detached house. About 23.5% live in a flat, maisonette or apartment. Source
Age of homes: 17.4% of Nottingham's homes were built before 1919, and 20.6% between 1965 and 1982, according to the Valuation Office Agency's March 2024 count. Source
Record heat: Gringley-on-the-Hill, in north Nottinghamshire, reached 40.1°C on 19 July 2022, one of seven UK stations to hit 40°C that day. Source

Fix the basics

Check every extractor works and vents outside. Hold a sheet of paper against the grille; if it doesn't stick, the fan isn't pulling enough air.

Approved Document F sets minimum extract rates for new installations. A good fan for a bathroom runs on after the light goes off, or switches on when humidity rises.

Clean fan grilles and check that ducts aren't crushed or disconnected in the loft. Many weak fans are simply blocked with dust or have a duct that has fallen off.

PIV for houses

Positive input ventilation pushes filtered loft air into the house, gently pushing damp air out through gaps. It suits terraces and semis with persistent window condensation. It runs on little electricity and needs a filter change every few years.

Hot summers

After the July 2022 heatwave, when Nottinghamshire hit 40.1°C, more people ask whether ventilation can cool a home. A PIV unit with a summer bypass avoids pulling hot loft air in. MVHR keeps air moving without opening windows, but it doesn't cool like air conditioning.

Nottingham homes and what they need

Victorian terraces

Back-addition bathrooms with an external wall are easy to fit with a new fan. Kitchens should have a hood ducted outside, not one that recirculates.

Interwar and post-war semis

These usually have a loft above the landing, ideal for a PIV unit.

City-centre flats and warehouse conversions

Newer conversions may have MVHR already. Clean or replace the filters at least once a year, as clogged filters cut airflow sharply.

Areas covered

Engineers who cover Nottingham work across areas including West Bridgford, Beeston, Wollaton, Sneinton, Lenton, Mapperley, Arnold, Carlton, Bulwell and Hucknall.

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Questions people in Nottingham ask

Who pays for a new fan in a rented home?

Usually the landlord, as ventilation forms part of keeping the home free from damp hazards. Over half of Nottingham households rent, so raise it in writing.

Is MVHR worth it in an older house?

Usually not on its own. It needs an airtight home to work well, so it makes most sense as part of a deep retrofit with insulation and new windows.

Sources

Also nearby: Ventilation installation in Derby, Ventilation installation in Leicester, Ventilation installation in Sheffield

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