Building Waterproofing

Building Waterproofing

Enquire Today For A Free No Obligation Quote

At Building Waterproofing, we provide specialised solutions to protect buildings from water ingress and moisture damage. Building waterproofing is essential for maintaining the integrity and longevity of structures, especially in areas prone to water exposure such as basements, foundations, roofs, and retaining walls.

Our advanced waterproofing techniques help prevent dampness, mould growth, and structural decay, thereby preserving your property’s value and safety. Catering to clients across the UK, we are committed to delivering durable and reliable building waterproofing services tailored to your specific needs.

What Are the Benefits of Building Waterproofing?

The primary benefit of building waterproofing is long-term protection against water penetration and dampness, which helps maintain the structural integrity of buildings.

By preventing moisture-related issues such as cracking, corrosion, and decay, waterproofing enhances durability and reduces the risk of costly repairs. Additionally, effective waterproofing contributes to energy efficiency by reducing heat loss and preventing insulation damage caused by moisture.

It also promotes better indoor air quality by minimising mould and mildew growth, which is crucial for health and hygiene. Furthermore, buildings with reliable waterproofing tend to retain higher property value, making it a worthwhile investment.

How to Identify the Need for Building Waterproofing?

Signs that indicate the need for building waterproofing include damp patches, mould growth, water stains, and cracks.

Areas prone to moisture, like basements, roof decks, or underground parking, are at higher risk. Proactively assessing these areas, especially during new construction, helps address issues before they escalate.

What Are the Most Common Building Waterproofing Methods?

Building waterproofing can be achieved through several methods, each suited to specific needs, including:

  • Internal waterproofing (Type A) – Involves creating a barrier with materials like liquid membranes, cementitious coatings, or crystalline admixtures, ideal for basement walls and interior spaces.
  • External waterproofing (Type B) – Uses waterproof concrete and tanking membranes to prevent groundwater ingress, commonly applied to foundations and retaining walls.
  • Drainage systems (Type C) – Incorporates cavity membranes and sump pumps to manage groundwater pressure effectively.
  • Combined methods – Utilises a mix of internal, external, and drainage techniques for comprehensive protection, especially in high-moisture environments.

How Much Do Building Waterproofing Services Cost?

The cost of building waterproofing ranges from £50 to £150 per square metre. Internal waterproofing, which involves applying barrier coatings and membranes, is generally less expensive than external methods that may require excavation and additional drainage systems.

Additional costs can arise from surface preparation, such as cleaning, repairing cracks, and removing old coatings. While the upfront investment may seem significant, effective waterproofing reduces long-term maintenance and repair costs, making it cost-effective over the building’s lifespan.

Contact Building Waterproofing to get a customised price for using waterproofing at your construction site.

How Is Building Waterproofing Installed?

Building waterproofing installation begins with a thorough assessment and planning phase, including a site survey to identify potential water entry points and assess moisture risks. The surface is then prepared by cleaning, repairing cracks, and removing old or damaged coatings.

Once the surface is ready, the chosen waterproofing method is applied. This may involve priming, followed by the application of liquid membranes, coatings, or drainage systems. Ensuring seamless coverage is crucial to eliminate weak points. After installation, the surface undergoes inspection to verify adhesion, uniformity, and leak resistance.

How Long Does Building Waterproofing Last?

Building waterproofing systems can last between 10 and 30 years. Regular maintenance and inspections help prolong the lifespan, especially in areas exposed to high moisture levels or structural movement.

Factors like UV exposure, mechanical stress, and chemical contact can influence durability, so choosing the right system for your specific environment is essential.

How to Maintain Waterproofed Structures?

Maintaining a waterproofed building involves routine inspections to detect leaks, cracks, or signs of deterioration. Regularly clearing debris from drainage systems and sump pumps helps prevent blockages that could compromise waterproofing.

Cleaning surfaces periodically ensures that protective coatings remain intact. If damage or wear is detected, prompt recoating or patching is essential to prevent water infiltration.

What Are the Typical Applications of Building Waterproofing?

Building waterproofing is widely used in various construction scenarios to protect areas vulnerable to water ingress, including:

  • Basements – Utilises tanking, drainage membranes, and sump pumps to manage groundwater pressure.
  • Roofs – Involves liquid-applied membranes, bituminous coatings, and green roof systems for sustainable designs.
  • Foundations – Uses barrier membranes to prevent moisture infiltration and maintain structural integrity.
  • Decks and balconies – Applies elastomeric coatings for flexible, durable protection against weathering.
  • Retaining walls and underground structures – Employs sheet membranes and drainage composites to withstand hydrostatic pressure.

Are Building Waterproofing Systems Environmentally Friendly?

Modern building waterproofing systems are increasingly eco-friendly, using low-VOC, non-toxic materials that are safer for both occupants and the environment.

Sustainable solutions include green roof membranes and eco-friendly liquid coatings that do not release harmful chemicals.

Additionally, integrating sustainable drainage systems can help manage surface water runoff, reducing environmental impact. Choosing recyclable and low-impact materials also contributes to more sustainable building practices.

Contact Building Waterproofing to get details on using safe and eco-friendly options for waterproofing on your property.

Find More Info

Make sure you contact us today for a number of great building waterproofing services.

For more information on building waterproofing, fill in the contact form below to receive a free quote today.

★★★★★

“Building Waterproofing exceeded our expectations. They quickly identified the issue and applied a long-term fix that’s held up perfectly.”


Marcus Ellington

Greater London

★★★★★

“Very professional and reliable team. The waterproofing work was clean, efficient, and has already made a huge difference in our property.”


Helena Sturrock

Greater London

Get In Touch

About Us Building Waterproofing

We specialise in providing high-quality Building Waterproofing, ensuring we offer the best service in the UK.