Damp and mould are common concerns for properties in Devon’s varied climate. Coastal salt, high humidity and seasonal temperature changes can all increase the risk of moisture-related problems. This article offers straightforward, low‑risk maintenance steps homeowners and landlords can use to reduce damp, spot early signs and know when to call a professional.

Quick checks you can do now

• Look for visible signs of damp or mould on walls, skirting boards and around windows.
• Check gutters and downpipes for blockages — overflowing gutters can lead to water ingress at the walls or foundations.
• Inspect external pointing and render for cracks or gaps where water could enter.
• Make sure extractor fans in kitchens and bathrooms are working and venting to the outside.

Reduce condensation — the most common cause

In many UK homes, condensation is the main driver of mould. Try these practical steps:

• Improve ventilation: open windows briefly each day, and use mechanical extractors when cooking or showering.
• Dry laundry outdoors where possible. If you must dry indoors, use a vented tumble dryer or place drying items in a well‑ventilated room with a window open.
• Maintain a low but consistent background heat during cold weather to reduce surface cooling.
• Avoid blocking air bricks, vents or trickle vents on windows.

External maintenance that prevents damp

Keeping the building envelope in good order helps stop water getting into the property:

• Clear leaves and debris from gutters and check downpipes regularly — do this from the ground or instruct a roofer; working at height is a specialist task.
• Check for slipped or damaged roof tiles and for signs of wear around flashings; book a roofer for repairs rather than attempting to climb on the roof yourself.
• Repair cracked pointing or render where water can penetrate. For traditional stone or brick walls, use breathability‑compatible materials.
• Ensure external drains and ground levels slope away from the building to reduce water pooling near foundations.

Basement or ground‑floor damp

Properties with cellars or below‑ground rooms need specific attention:

• Check for rising damp signs (tide marks, salt deposits). For suspected rising damp, consult a surveyor or damp specialist; avoid DIY chemical ‘cures’ that can mask underlying problems.
• Keep cellar ventilation clear and consider a dehumidifier for enclosed, unused spaces.

When to call a professional

If you find ongoing water ingress, persistent mould despite improved ventilation, or structural defects such as large cracks, contact a qualified tradesperson for a written quotation. Choose contractors who provide clear scope, materials and timescales — and ask for references or a portfolio if appropriate.

Practical seasonal checklist

• Spring: clear gutters, inspect pointing and check for winter damage to roofs and external finishes.
• Summer: service extractor fans, check ventilation routes and store outdoor items away from walls.
• Autumn: clear leaves from gutters and drains; check external woodwork and paintwork.
• Winter: keep a low background heat and ensure pipes are insulated where required to reduce condensation and freeze risk.

Useful links and help from T D Everything

For local trades, repair services and long‑term maintenance plans in Devon, see our Repairs & Property Maintenance page: Repairs & Property Maintenance. Check which areas we cover on our Areas We Cover page: Areas We Cover.

If you’d like a written quotation for gutter clearance, roof repair or a property maintenance inspection, contact us with photos and property details and we’ll arrange a site visit: Contact T D Everything.

Note: this article gives general maintenance guidance only and avoids technical or safety‑critical instructions. For work at height, electrical or gas‑related repairs always use a suitably qualified professional.