Damp and mould in an HMO is usually caused by condensation, leaks or rising or penetrating damp, and often by a mix. For a house in Horsham we start with a measured survey, check the council’s written HMO standards for the number of sharers, and then price each item separately.
- Area
- West Sussex, England
- Postcodes
- RH12
- Location
- 18 miles north-west of Brighton
- Pricing region
- South East
What do damp, mould and HHSRS repairs in Horsham involve?
- Insulation to cold spots
- Photo report of before and after
- Mould treatment and stain-block
- Cause-finding survey with moisture readings
- Extraction and continuous ventilation
Which rules apply in Horsham?
Damp, mould and HHSRS repairs in Horsham must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- Councils assess hazards, including damp, mould and fire, under the HHSRS; revised regulations and guidance applied from 23 June 2026.
- Rented homes must currently meet at least EPC E, with a £3,500 spending cap. The government plans EPC C by October 2030, subject to legislation.
- Councils can fine up to £7,000 where a Category 1 hazard is not removed when it reasonably could have been.
How much do damp, mould and HHSRS repairs cost in Horsham?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Damp repair, from a single wall to a whole house | £600 – £4,000 | £670 – £4,500 | job |
| Mould treatment and making good | £250 – £500 | £280 – £560 | room |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Horsham can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Typical time on site: 2–10 working days. We agree the programme with you before starting and send photo updates as the work progresses.
When do Horsham landlords need it?
Typical reasons for this work in Horsham:
- Tenant reports of damp or mould
- An HHSRS finding or council letter
Questions about damp, mould and HHSRS repairs in Horsham
Will a mould wash fix it?
Only for a while. Unless the cause is fixed, mould comes back.
Which postcodes in Horsham do you work in?
All of them, including RH12, and the surrounding parts of West Sussex.
Where do I check the HMO rules for an address in Horsham?
With the local council for the address. Councils in England can add additional licensing and Article 4 directions on top of the national rules. Check the council’s website for the exact address before you buy or start work.
How much do damp, mould and HHSRS repairs cost in Horsham?
Our guide ranges for South East are in the table on this page, and the guide-price tool gives a figure for your house. A fixed written quote follows a free site visit.
Damp, mould and HHSRS repairs near Horsham
- Crawley · 7 mi
- Horley · 11 mi
- Haywards Heath · 11 mi
- Burgess Hill · 11 mi
- Reigate · 13 mi
- Redhill · 14 mi
- All of West Sussex
Other HMO services in Horsham
- Shared bathroom and shower room refits in Horsham
- EPC and energy upgrades in Horsham
- Full HMO refurbishment in Horsham
- Void and between-tenancy refurbs in Horsham
- Licence condition and schedule-of-works in Horsham
- Communal kitchen refits in Horsham
- Loft conversions for extra rooms in Horsham
- House to HMO conversion in Horsham