HMO damp and mould compliance is stricter than standard tenancies. Liverpool, with one of the largest HMO markets outside London, has plenty of licensed operators finding that out the hard way. If you operate a licensed HMO in Liverpool, here is what actually gets checked.
What Gets Checked Under HHSRS for HMOs
Under the Housing Health and Safety Rating System (HHSRS), damp and mould is assessed as a category 1 or 2 hazard depending on severity, and HMO licensing conditions in Liverpool specifically require the property to be free of serious disrepair, including damp. Environmental health officers inspecting HMOs pay close attention to communal kitchens and bathrooms, where multiple occupants generate far more moisture than a single-family home, often without adequate mechanical extraction to cope with it.
The Most Common Failure Points in Liverpool HMOs
- Extractor fans that are undersized or not connected to a humidistat
- Bedrooms converted from former reception rooms with no trickle ventilation
- Shared bathrooms with extraction that switches off the moment the light does, well before the moisture has cleared
Each of these looks like a minor detail on its own. But together they create the conditions for recurring mould regardless of how often a landlord repaints.
Audit Ventilation Against Occupancy, Not Just Building Regs
A compliance-focused fix means auditing ventilation room by room against occupancy levels. Not against building regulations minimums that assume single-family use. It also means checking that any recent insulation or glazing upgrades haven’t inadvertently reduced background ventilation without a compensating extraction upgrade. This is a common and expensive mistake.
Get Your HMO Damp Audit Before Licence Renewal
Net Zero Gurus carries out HMO-specific damp and ventilation audits across Liverpool, built around the same whole-property logic as our PAS 2038 assessments. If your HMO has a recurring damp complaint, get it properly diagnosed before your next licence renewal inspection. Call 0151 374 0044 or email hello@netzerogurus.co.uk.
