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Damp Proofing Services

Rising Damp

What Is Rising Damp?

Rising damp occurs when groundwater is drawn up through the walls or floors of a property by capillary action. As moisture travels upwards, it carries salts and minerals that can leave tide marks, cause plaster to bubble, create musty smells, and damage timber. It’s most common in older buildings where a damp-proof course (DPC) is missing, damaged, or has failed.

How Rising Damp Is Resolved

Rising damp is treated by installing or reinstating an effective damp-proof course to block moisture from travelling up the walls. This is typically achieved through:

  • Chemical DPC Injection – Injecting specialist damp-proof creams or fluids into the masonry to form a long-lasting waterproof barrier.

  • Replastering – Removing affected plaster and replacing it with salt-resistant, breathable render to prevent future contamination.

  • Associated Repairs – Treating any damaged skirtings, improving ventilation, and ensuring ground levels outside are not bridging the new DPC.

This approach provides a permanent solution, restoring a dry, healthy environment within the home.

Penetrating Damp

What Is Penetrating Damp?

Penetrating damp happens when water enters a property through external defects such as damaged brickwork, faulty pointing, cracked render, leaking gutters, or poorly sealed windows and doors. Unlike rising damp, it moves horizontally through walls, leading to damp patches, peeling paint, mould growth, and structural deterioration if left untreated.

How Penetrating Damp Is Resolved

Resolving penetrating damp focuses on stopping the source of water and ensuring the building envelope is watertight. This typically includes:

  • Repairing External Defects – Repointing brickwork, fixing cracks, resealing windows/doors, and repairing or replacing gutters, downpipes, and roof coverings.

  • Improving Water Runoff – Ensuring correct drainage and preventing water from pooling around the property.

  • Internal Remediation – Drying out affected areas, treating mould, and carrying out any necessary redecoration or plaster repairs once the structure is fully dry.

By addressing the root cause and restoring the integrity of the external envelope, penetrating damp can be fully resolved and prevented from returning.

Condensation

What Is Condensation?

Condensation is the most common type of damp found in homes. It occurs when everyday activities like cooking, showering, and drying clothes release moisture into the air. When this warm, humid air meets cold surfaces—such as windows, walls, or tiles—it turns into water droplets. Over time, this leads to black mould growth, musty smells, and deterioration of paint and plaster.

How Condensation Is Resolved

Resolving condensation focuses on reducing excess moisture and improving airflow within the property. Effective solutions include:

  • Improved Ventilation – Installing or upgrading extractor fans, trickle vents, and air bricks to allow moisture to escape.

  • Managing Humidity – Using positive input ventilation (PIV) systems, dehumidifiers, or moisture-controlled fans to regulate indoor air.

  • Lifestyle Adjustments – Simple measures such as covering pans, drying clothes outdoors when possible, and keeping rooms heated consistently.

  • Treating Affected Areas – Cleaning and removing mould, repairing damaged surfaces, and applying mould-resistant coatings where required.

By controlling moisture and increasing ventilation, condensation problems can be prevented and long-term damp issues eliminated.

Ventilation Systems

What Are Air Ventilation Systems?

Air ventilation systems are designed to improve indoor air quality by replacing stale, humid, or polluted air with fresh, clean air. They help control moisture levels, reduce condensation, and prevent issues such as mould, damp, and poor air circulation. Modern ventilation systems continuously move air through a property, creating a healthier, more comfortable living environment.

How Air Ventilation Systems Are Used

Ventilation systems are installed to regulate airflow throughout a property. Depending on the type, they can:

  • Extract Moist Air – Systems like extractor fans or MEV (Mechanical Extract Ventilation) remove moisture from kitchens, bathrooms, and utility rooms.

  • Bring In Fresh Air – Solutions such as PIV (Positive Input Ventilation) draw filtered air into the property to dilute humidity and pollutants.

  • Balance Airflow – MVHR (Mechanical Ventilation with Heat Recovery) systems supply fresh air while recovering heat from outgoing air, improving energy efficiency.

These systems run quietly and continuously in the background, helping prevent condensation, improving air quality, and creating a healthier home environment.

Areas Covered: North-West (Liverpool, Wirral, Manchester and in-between) and North Wales

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