McDowell Drain & Waterproofing – Niagara Region
When homeowners invest in basement waterproofing, they’re not just paying for excavation work or the installation of a waterproof membrane. They’re investing in the long-term safety of their foundation, the protection of their living space, and the overall value of their property.
At McDowell Drain & Waterproofing, every qualifying exterior waterproofing project is supported by a 20-year transferable warranty. This warranty is designed to give homeowners confidence that their waterproofing system has been installed properly and will perform reliably for years to come.
For many Niagara homeowners, waterproofing is a significant structural upgrade. A warranty provides reassurance that the materials, workmanship, and installation methods used are designed to last — not just temporarily stop a leak.
This page explains what our waterproofing warranty includes, how it protects your home, and why it reflects the confidence we have in our waterproofing systems.
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Basement waterproofing is not a cosmetic repair. It protects the most important structural component of your home — the foundation.
When water begins entering a basement, the consequences can quickly extend beyond a damp wall or floor. Persistent moisture can affect several aspects of a home, including:
The structural integrity of foundation walls
Finished basements and living spaces
Indoor air quality and mold prevention
Property value and resale potential
A properly installed exterior waterproofing system should perform reliably for many years. If a waterproofing system fails prematurely, it often indicates that important steps were skipped during installation or inferior materials were used.
Our 20-year transferable waterproofing warranty reflects the quality of the systems we install. Each qualifying project uses a carefully designed multi-layer waterproofing system that includes:
Industrial-grade rubberized foundation membranes
Air-gap drainage board systems
Professional crack injection repairs
Excavation down to footing level
Correct drainage integration and backfilling
These components work together to control water around the foundation rather than simply covering the problem.
For qualifying exterior waterproofing installations, our warranty protects homeowners against specific issues related to the repaired section of the foundation.
Coverage includes:
If water enters through the repaired area due to an installation issue, our team will evaluate the situation and resolve the problem according to the terms of the warranty.
This protection gives homeowners long-term peace of mind knowing their waterproofing system was installed by professionals who stand behind their work
One of the most valuable aspects of our warranty is that it is transferable to future homeowners.
If you sell your home within the 20-year coverage period, the warranty can be transferred to the new owner, provided the proper documentation and conditions are met.
This feature can make a noticeable difference during a real estate transaction.
Homebuyers often view waterproofing issues as a potential risk. A documented warranty from an established contractor helps reassure buyers that the foundation has already been professionally protected.
Benefits of a transferable waterproofing warranty include:
In competitive real estate markets such as St. Catharines, Niagara Falls, and Welland, having a transferable waterproofing warranty can strengthen a home’s overall appeal.
Many contractors offer shorter warranties because their installation methods do not support long-term reliability.
Common shortcuts sometimes used in the waterproofing industry include:
These methods may reduce installation time, but they often fail to address the real cause of basement leaks — hydrostatic pressure around the foundation.
At McDowell Drain & Waterproofing, our installation process follows a comprehensive multi-layer approach designed for long-term performance.
Our exterior waterproofing system typically includes:
When installed correctly, these systems are designed to perform for decades. The 20-year warranty reflects that confidence in both materials and workmanship.
Homeowners often see advertisements for “lifetime waterproofing warranties.” However, these claims can sometimes be unclear or limited in ways that are not immediately obvious.
Some warranties fail to clearly explain:
At McDowell Drain & Waterproofing, we believe homeowners deserve clear, transparent information.
A defined 20-year transferable warranty provides a straightforward and accountable form of protection.It outlines specific coverage, clear expectations, and a defined period backed by a local company with a long history of serving Niagara homeowners.
This approach provides real protection rather than vague marketing promises.
While a properly installed waterproofing system is designed to last, homeowners can take a few simple steps to help maintain optimal drainage around their foundation.
Helpful maintenance practices include:
Waterproofing systems work best when combined with proper surface drainage and routine maintenance.
Basement waterproofing is not a small repair — it is an investment in the long-term health of your home.
Choosing a contractor that offers a 20-year transferable warranty provides several important advantages:At McDowell Drain & Waterproofing, our goal is to install systems that homeowners can rely on for decades.
Our reputation in the Niagara Region has been built over more than 45 years by focusing on permanent solutions rather than short-term repairs.
McDowell Drain & Waterproofing is the trusted choice for Drain Repair and Replacement in Niagara and surrounding regions. Here’s why:
With more than 45 years in the industry, we bring unmatched expertise, hands-on knowledge, and proven reliability to every job.
Our team comprises highly trained professionals with decades of experience in handling complex residential and commercial projects.
We’ve successfully completed over 3,500 drainage and waterproofing projects across the region—earning the trust of homeowners and businesses alike.
Whether it’s an emergency repair or a scheduled replacement, we prioritize timely service without compromising on quality
We use high-grade, corrosion-resistant materials to ensure your repaired or replaced drain system lasts for decades.
From start to finish, we focus on clear communication, professional workmanship, and your complete satisfaction.
Drain repair and replacement don’t have to disrupt your life or cost a fortune. With McDowell Drain & Waterproofing, you’ll experience advanced solutions tailored to your unique needs, backed by over 45 years of trusted service in Niagara and surrounding areas.
Contact us today to schedule your inspection and let us restore your drain system with professionalism and expertise!
We’re proud to have earned the trust of our customers.
We are proud to have earned the trust and confidence of our customers through our commitment to excellence and exceptional service.
We had some drainage issues and called McDowell Drain & Waterproofing. It was GREAT service, he called me right back and was here within 2 hours. Solved the problem and haven’t had any issues since. On top of great service, Stuart was very friendly, helpful and knowledgeable! I would highly recommend and will certainly be calling him for any plumbing issues we may have in the future!:)
Sara Swayze
Professional from first contact to job completion. Job was to install a sewer backwater valve but once the floor was opened, it was evident that a sump pump installation was also required. Quickly pivoted to accommodate the additional work scope and still meet the timeline completion. Stuart, the owner is knowledgeable, professional and puts you at ease. Alex the installer did great work and paid attention to details. He was always receptive to any questions or concerns. Would not hesitate to recommend them for your plumbing needs.
David North
MCDOWELL DRAIN & WATERPROOFING, led by Stuart, truly stands out in the professional field. As someone with experience in spotting professionalism, I was thoroughly impressed by Stuart’s ability to listen attentively and resolve the issue promptly as promised. His honesty and competitive pricing, coupled with the high quality of his work, make him a standout choice for any drain and waterproofing needs. I wholeheartedly recommend him to anyone seeking top-notch service in this field!
Nancy Heckman
Services Offered
Phone Number
Email Address
USP |
Details |
|---|---|
| 45+ Years of Proven Industry Experience | McDowell Drain & Waterproofing has been protecting homes for over four decades—experience that cannot be replicated. |
| 20-Year Written Warranty on Waterproofing Systems | Long-term protection backed by a 20-year warranty, not short-term promises. |
| 3,500+ Successfully Completed Projects | Thousands of waterproofing and drainage projects completed across residential properties. |
| Niagara Region Specialists | Deep expertise in local soil conditions, water tables, and aging infrastructure unique to the Niagara Region. |
| Complete Drainage & Waterproofing Solutions | Interior waterproofing, exterior waterproofing, drain repair, sump pumps, backwater valves—handled by one expert team. |
| Permanent Fixes, Not Temporary Repairs | Root-cause solutions that stop water problems permanently, not seasonal patchwork. |
| Honest Diagnostics & Clear Explanations | Homeowners receive transparent inspections with practical recommendations—no scare tactics. |
| Trusted by Local Homeowners for Generations | A reputation built through decades of consistent workmanship and word-of-mouth trust. |
| Clean, Respectful, Professional Worksites | Work completed with care for the home, landscaping, and living space. |
| Fast Response for Drainage & Water Emergencies | When water threatens your home, McDowell responds quickly to limit damage. |
A 20-year transferable waterproofing warranty typically covers water penetration through the treated foundation wall, failure of the waterproof membrane system, and defects related to installation workmanship. At McDowell Drain & Waterproofing, the warranty specifically protects the repaired section of the foundation where exterior waterproofing was installed.
Yes, a transferable waterproofing warranty can be passed to a new homeowner if the property is sold within the coverage period. This increases property value and reassures buyers that the basement waterproofing system is professionally installed and protected.
In areas like Niagara Falls, St. Catharines, and Welland, where soil conditions and groundwater pressure are high, a transferable warranty provides long-term protection and improves resale value. It gives buyers confidence that foundation issues have already been professionally addressed.
A 20-year warranty clearly defines coverage, responsibilities, and conditions, making it more transparent and reliable. Lifetime warranties can sometimes include unclear terms, limitations, or conditions that may reduce actual protection.
A waterproofing warranty may be voided if:
No, the warranty typically covers only the specific section of the foundation that was waterproofed. Leaks from untreated areas, plumbing issues, or new structural damage are not included.
Exterior waterproofing prevents water from entering the foundation by using a multi-layer system that includes membranes, drainage boards, and proper excavation. This approach addresses hydrostatic pressure instead of just covering symptoms.
A professionally installed exterior waterproofing system can last decades when done correctly using high-quality materials and proper installation methods. This is why a 20-year warranty reflects confidence in durability and performance.
Yes, waterproofing significantly increases home value by:
Homeowners should:
These steps help maintain optimal drainage and system performance.
Homes in Niagara face:
These conditions increase hydrostatic pressure, making professional waterproofing essential for long-term protection.
Yes. A documented transferable warranty reassures home inspectors and buyers that the foundation has been professionally repaired, reducing negotiation risks and increasing trust.
You should contact your waterproofing contractor immediately. If the issue is covered under warranty, the company will inspect and resolve it according to the warranty terms.