Fast Waterproofing Response — We Arrive Within 60 Minutes

Basement Waterproofing 

Basement waterproofing is one of the most important investments a homeowner can make, and Old City Roofing And Construction delivers industry-leading waterproofing solutions tailored to Vaughan’s climate, soil conditions, and home construction styles. 

Stay In Touch

Roofing Services In Vaughan

Excess moisture, foundation leaks, and groundwater pressure are common problems across the GTA, and if left untreated, they can lead to structural damage, mold growth, wall deterioration, and costly repairs. Our team specializes in diagnosing the root cause of basement moisture and providing long-term waterproofing systems that keep your home dry, safe, and structurally sound.

At Old City Roofing And Construction, we combine modern technology with proven waterproofing methods to ensure your basement remains secure in every season. Vaughan homeowners rely on us because we offer complete transparency, strong workmanship warranties, and high-quality materials designed to withstand Old City Roofing And Construction’s harsh freeze-thaw cycles. Whether you’re dealing with damp walls, visible cracks, pooling water, or simply want to protect your home before problems begin, our basement waterproofing professionals provide reliable solutions with long-term value.

Basement Waterproofing Inspection & Diagnosis

Every successful waterproofing project begins with a thorough assessment. Our experts examine all areas contributing to moisture issues—interior walls, exterior foundation, grading around the property, drainage patterns, weeping tile conditions, sump pump performance, and the presence of hydrostatic pressure. We use moisture meters, thermal imaging, and visual inspection techniques to identify hidden leaks and vulnerable areas. This detailed diagnosis allows us to design a custom waterproofing plan that addresses the exact needs of your Vaughan home.

Exterior Basement Waterproofing

Exterior waterproofing is the most comprehensive way to protect a foundation. Old City Roofing And Construction specializes in full excavation waterproofing, exposing the foundation wall down to the footing to install a reliable moisture barrier. The process includes excavation, cleaning the foundation wall, repairing cracks, applying a rubberized waterproof membrane, installing drainage boards, and ensuring proper weeping tile function. We also install new weeping tile tubing connected to a sump pump or storm drain system as required. Exterior waterproofing is ideal for long-term protection because it stops water before it ever reaches your interior basement walls.

Interior Basement Waterproofing

For situations where exterior excavation is not possible—such as homes with limited property access—our interior waterproofing solutions provide dependable protection from leaks and moisture. This system includes installing an interior drainage channel along the perimeter of the basement, connecting it to a sump pump that efficiently removes water from beneath your foundation. We also use vapor barriers and moisture-resistant coatings to seal interior walls. Interior waterproofing is highly effective for managing groundwater pressure, eliminating basement dampness, and creating a cleaner, healthier living space.

Crack Injection & Foundation Wall Sealing

Basement cracks are one of the most common sources of water intrusion. Old City Roofing And Construction offers professional crack injection services using polyurethane or epoxy, depending on the type of crack and severity of the leak. Polyurethane foam injections expand to seal active leaks, while epoxy injections restore structural integrity. These treatments are long-lasting and ideal for repairing isolated problem areas without extensive excavation. Our crack sealing solutions stop leaks permanently and help maintain the strength and durability of your foundation walls.

Weeping Tile Replacement & Installation

Your home’s drainage system plays a crucial role in keeping water away from your foundation. Over time, older clay or corrugated weeping tiles can collapse, clog, or fail due to soil movement and sediment buildup. Old City Roofing And Construction installs advanced weeping tile systems that provide continuous drainage and relieve hydrostatic pressure. A properly functioning weeping tile system is essential for maintaining a dry basement, especially during heavy rainfall or rapid snowmelt in Vaughan.

Sump Pump Installation & Maintenance

A high-quality sump pump is your basement’s last line of defense against flooding. We install modern sump pump systems that include battery backup units, sealed lids, high-capacity discharge lines, and alarms to alert you of rising water levels. Regular maintenance is also available to ensure your sump pump continues functioning at peak performance. A properly installed and maintained sump pump significantly reduces the risk of basement flooding.

Basement Dampness & Mold Prevention

Old City Roofing And Construction understands that moisture problems can negatively impact indoor air quality and your family’s health. Excessive humidity and dampness create conditions where mold and mildew can grow rapidly. Our waterproofing solutions reduce moisture at the source, preventing mold formation and helping your home stay healthier and more comfortable. We also offer vapor barrier installation and dehumidification recommendations to keep your basement environment dry and safe.

Grading, Downspout Management & Surface Water Control

Sometimes the cause of basement leaks is not structural—it’s improper property drainage. We evaluate grading around your home and adjust soil levels to direct water away from your foundation. Redirecting downspouts, adding extensions, and improving surface drainage can significantly reduce water penetration. When combined with exterior waterproofing, proper grading provides powerful long-term protection.

Fully Guaranteed Basement Waterproofing Systems

  • Old City Roofing And Construction proudly stands behind our work, offering comprehensive warranties on waterproofing membranes, drainage systems, and installation services. Vaughan homeowners trust us due to our commitment to quality, transparency, and long-term results. Every waterproofing system we install is designed to last for decades and protect your home from the challenges of Old City Roofing And Construction’s climate.

Why Vaughan Homeowners Choose Old City Roofing And Construction

  • Over a decade of experience with GTA foundations

  • High-quality materials engineered for Canadian conditions

  • Transparent pricing with no hidden fees

  • Long-term workmanship warranties

  • Fully licensed, insured, and safety-compliant

  • Professional, clean, and respectful crew

  • Custom waterproofing options for every budget and home type

A Dry Basement Means a Safer, Healthier Home

Water problems rarely go away on their own—over time, they get worse and more expensive. Old City Roofing And Construction provides durable basement waterproofing solutions that protect your property, increase home value, and create a healthier living environment. Whether you use your basement for storage, recreation, or as additional living space, keeping it dry is essential for long-term comfort and safety.