How to Spot (& Fix) Common Plumbing Problems in Your Home
Plumbing problems usually don’t start with a big splash. They begin in small ways — a tap that won’t stop
November 30, 2025
Exterior basement waterproofing secures your home by stopping groundwater at the source—before it ever reaches your walls. Our process involves excavating the perimeter down to footing level, applying a durable waterproof membrane, installing drainage components, and regrading the soil. This exterior-first strategy is ideal in Thorold’s challenging conditions, offering the most robust, long-lasting solution for foundation protection.
Thorold’s unique landscape and climate factors intensify basement water threats:
● Fluctuating Water Table Near Welland Canal: Groundwater often sits against foundations, making basement waterproofing in Thorold essential.
● Seasonal Snowmelt: Rapid thaw and heavy rains around Port Robinson and Confederation Heights saturate soils, leading to wet basement problems.
● Clay & Silt Soils: Local clay retains water, creating significant hydrostatic pressure against walls, often requiring foundation repair.
● Freeze–Thaw Cycles: Winter freeze expands water in masonry pores, enlarging cracks over time unless mitigated with exterior basement waterproofing.
Be on the lookout for:
Routine care ensures your perimeter waterproofing Thorold system remains fully operational.
With more than 45 years in the industry, we bring unmatched expertise, hands-on knowledge, and proven reliability to every job.
Google-Guaranteed professionals following Ontario building codes.
We’ve successfully completed over 3,500 drainage and waterproofing projects across the region—earning the trust of homeowners and businesses alike.
Top-tier membranes, drainage boards, and pipes.
20-year membrane warranty; 5-year labor warranty.
Rapid flood repair and structural stabilization.
A mid-century home in Rolling Meadows experienced seepage every spring. McDowell’s exterior solution:
Result: Zero leaks during two successive snowmelts—and stabilized walls with no visible movement.
Hydrostatic pressure is the lateral force of groundwater pushing on foundation walls. Our exterior system combats this by:
By relieving pressure at its origin, we prevent cracks, leaks, and structural stress—especially critical in Thorold’s clay soils.
Stops groundwater before it presses on walls.
Prevents bowing, cracking, and freeze–thaw deterioration.
Eliminates mold, efflorescence, and musty odors.
No interior disruptions—landscaping and patios stay intact.
Avoid repeated repairs, basement flood cleanup, and costly interior finishes.
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Projects typically complete in 5–8 days, depending on home size and soil conditions.
Many Thorold properties need a permit; McDowell handles all applications on your behalf.
Yes—we protect and fully restore all plants, sod, and hardscapes post-installation.
Absolutely—dual systems provide maximum protection against leaks and hydrostatic pressure.
Annual visual checks and flushing weeping tile cleanouts every 2–3 years keep it optimal.