Damp and mould in an HMO is usually caused by condensation, leaks or rising or penetrating damp, and often by a mix. Landlords in Harrow (HA1, HA2 and HA3) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Greater London, England
- Postcodes
- HA1, HA2 and HA3
- Location
- 10 miles north-west of London
- Pricing region
- London
What do damp, mould and HHSRS repairs in Harrow involve?
- Extraction and continuous ventilation
- Damp-proofing where it is the cause
- Leak, gutter and roof repairs
- Photo report of before and after
- Insulation to cold spots
Which rules apply in Harrow?
Damp, mould and HHSRS repairs in Harrow 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 Harrow?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Damp repair, from a single wall to a whole house | £600 – £4,000 | £770 – £5,100 | job |
| Mould treatment and making good | £250 – £500 | £320 – £640 | room |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Harrow can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Most jobs of this kind take 2–10 working days. If a council deadline applies in Harrow, tell us at the first call so the programme is built around it.
When do Harrow landlords need it?
We usually get the call when:
- Tenant reports of damp or mould
- An HHSRS finding or council letter
Questions about damp, mould and HHSRS repairs in Harrow
How quickly should damp be dealt with?
As soon as possible, and quickly where health is at risk. New rules on hazard timescales are coming into the private rented sector; our compliance pages explain what is confirmed.
Which postcodes in Harrow do you work in?
All of them, including HA1, HA2 and HA3, and the surrounding parts of Greater London.
Where do I check the HMO rules for an address in Harrow?
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 Harrow?
Our guide ranges for London 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 Harrow
- Brent · 2 mi
- Wembley · 2 mi
- Northolt · 3 mi
- Greenford · 4 mi
- Ruislip · 4 mi
- Bushey · 5 mi
- All of Greater London