Balcony and Terrace Repairs: Fix Leaks Before They Spread

The best way to repair a leaking balcony or terrace is to identify the source early, prepare the surface properly, and apply a seamless waterproofing system that prevents future water ingress.

Balcony and terrace leaks often start with small cracks or worn coatings but can quickly cause structural damage if ignored. At PRC Limited, we provide long-lasting repair and waterproofing solutions that stop leaks, restore surfaces, and keep your property safe, dry, and compliant.

Why Balconies and Terraces Leak

Balconies and terraces are exposed to constant weathering from rain, UV rays, and temperature changes. Over time, this can cause coatings to crack, joints to separate, and drainage to fail - allowing water to seep into the structure below.

Once water gets through the surface, it often leads to damp patches, corrosion of reinforcement, and damage to ceilings or interiors beneath. That’s why early detection and professional repair are essential.

Our Balcony and Terrace Repair Process

At PRC Limited, we start every project with a full assessment to locate the source of leaks and determine the condition of the existing waterproofing. From there, we carry out repairs using proven materials and techniques designed for long-term performance.

Our typical repair process includes:

• Inspection and preparation – Identifying cracks, removing failed coatings, and cleaning the surface.

• Waterproofing – Applying a high-performance liquid system for seamless coverage.

• Finishing and detailing – Reinforcing upstands, trims, and outlets to prevent future ponding or water ingress.

We work with leading systems such as Langley and Bauder, ensuring each restoration meets UK waterproofing standards for safety and durability.

Why Professional Balcony Repairs Matter

Attempting a DIY patch might mask a problem temporarily but won’t resolve underlying waterproofing failures. Professional balcony repairs ensure the system performs as designed - preventing leaks, protecting the structure, and extending its lifespan.

For councils, housing associations, and property managers, properly restored balconies also meet compliance standards and reduce long-term maintenance costs.

Long-Term Waterproofing Solutions

Every balcony or terrace is different, and we tailor our approach to suit the building’s use and exposure.Cold-applied liquid systems create a fully bonded, seamless membrane without the need for heat or flames - perfect for occupied buildings.Where possible, overlay systems can refurbish an existing surface without full removal, saving time and cost.Improving drainage is often part of the solution, helping prevent standing water and future deterioration.

Book a Professional Balcony or Terrace Survey

If you’ve noticed cracked coatings, damp staining, or standing water on your balcony, don’t wait for the next heavy rainfall. Early action can prevent costly damage to your structure and interiors.

Book a roof and balcony survey with PRC Limited to identify the cause of leaks and get a tailored waterproofing solution that lasts.