When you’re dealing with a fast-building or stubborn clogged drain in bathtub, you can count on McDowell Drain & Waterproofing to get things flowing again quickly and professionally.
With more than 45 years of hands-on experience, advanced equipment, and a solid track record across Welland communities like Dain City, Cooks Mills, and Crowland, we’re also the trusted choice for drain repair & replacement in Welland.
At McDowell Drain & Waterproofing, we rely on industry-leading techniques to solve every type of blockage:
Drain Snaking to remove hair, grease, soap buildup, and everyday debris
Hydro Jetting to cut through heavy sludge and tree roots
Camera Inspections to pinpoint hidden blockages with accuracy
Our mission is simple: eliminate the clog completely and protect your Welland property from backups, unsanitary conditions, water damage, costly repairs — and ensure your foundation stays safe through proper water proofing of basement when needed.
“Clogged Drain Services” in Welland includes full professional clearing of blocked drains, sewer lines, floor drains, and plumbing fixtures.
Because of Welland’s older sewer systems, hard water, and mature landscaping, homes and businesses often deal with clogged sinks, showers, toilets, and sewer backups. When this happens, many residents start searching for a plumber close to me — and that’s where McDowell Drain & Waterproofing steps in with fast, reliable service.


If you’re experiencing any of these issues, call us immediately for professional drain cleaning in Welland:
Important: In Welland’s high water table areas, ignoring clogged drains risks basement flooding. Early clearing prevents major disasters.






Complete Clearing
We remove the clog fully, not just partially. Our snakes and hydro-jetting equipment clean pipe walls and flush away debris.
Healthier Home
Clearing out bacteria-laden clogs improves air quality and removes unpleasant odors caused by mold, waste, and mildew.
Protects Property
A clogged drain can cause overflows and floods. Clearing clogs promptly protects your floors, walls, and foundations.
Saves Money
Preventing backups and floods avoids costly restoration work and sewer line replacements down the line.
Expertise and Convenience
Our licensed, insured, and Google Guaranteed team arrives fully equipped for any drain issue — so you don’t have to rent equipment or risk DIY mistakes.
In short: we don’t just clear your drains — we protect your home’s plumbing for years to come.
Services Offered
Phone Number
Email Address
At McDowell Drain & Waterproofing, we recommend the best technique based on your specific clog type:
When you book McDowell Drain & Waterproofing, here’s what you can expect:

Initial Inspection
We assess symptoms, and if needed, perform a sewer camera inspection to identify the clog location and cause.
Selecting the Best Clearing Method
Based on inspection results, we choose snaking, hydro jetting, root cutting, or manual removal — the safest, most efficient way to clear the blockage.


Thorough Clearing
We eliminate the clog, flush the system, and ensure all fixtures drain properly — preventing re-clogs.
Verification & Final Testing
We confirm the issue is completely resolved, inspecting pipes with cameras if needed.

Expert Advice
We advise on best practices to maintain clear drains — like avoiding grease dumping and scheduling preventive maintenance.
Experience You Can Trust
We’re not a fly-by-night operation. We’ve built our business over 45+ years by helping neighbors throughout Niagara, including many in Welland. Our expertise means your clog will be identified and cleared the right way, the first time.
Honest & Friendly Service
As a local, family-run company, we believe in treating customers fairly. We explain what we’re doing and why, so you’re never in the dark. Our team is friendly, respectful, and will leave your home as clean as we found it.
24/7 Availability
Got an emergency late at night? We’re on call. Weekend or holiday clog? No problem. We know drain disasters don’t follow a schedule, so we make ourselves available whenever you need us.
Vetted & Guaranteed
McDowell Drain is Google Guaranteed, meaning our business has been thoroughly vetted for quality and reliability. We also guarantee your satisfaction – if the drain isn’t clear, we’re not done.
Guaranteed Satisfaction
We stand by our work. If you’re not happy or if the drain has any issues shortly after we’ve serviced it, we’ll come back and make it right. We’re not satisfied until you’re completely clog-free and happy.
When you book McDowell Drain & Waterproofing, here’s what you can expect:
Perfect for: Kitchen sink clogs, bathroom sinks, bathtubs, laundry drains
How it Works: We use motorized augers (drain snakes) to physically break through blockages caused by hair, soap scum, food particles, and grease buildup.
Perfect for: Grease buildup, heavy sludge, recurring clogs, sewer line blockages
How it Works: Our hydro jetting services in Welland use high-pressure water (up to 4000 PSI) to scour the entire pipe system clean, dissolving thick debris and even tree roots — without chemicals.
Best for: Diagnosing unknown clogs, sewer backups, home pre-purchase inspections
How it Works: A high-definition waterproof camera is inserted into the pipes to locate damage, blockages, tree roots, or misalignments without excavation — ensuring the right repair solution.
Perfect for: Clogs close to kitchen sinks or bathroom vanities
How it Works: We carefully disassemble the P-trap (U-shaped pipe) and manually remove any lodged debris. This quick, non-invasive technique is great for clearing localized blockages.
Perfect for: Tree roots in main sewer lines
How it Works: Using mechanical root cutters, we grind through root blockages growing into sewer pipes — common in older Welland neighborhoods with mature trees
Don’t wait for a minor clog to turn into a major flood.
McDowell Drain & Waterproofing is Welland’s trusted team for:
Call (905) 431-5612 today or book online at mcdowelldrain.ca —
We’ll get your drains back to full, free-flowing health — fast and professionally
In early spring, a homeowner in the Dain City area of Welland contacted McDowell Drain & Waterproofing about persistent basement drain backups.
Heavy rains had caused their basement floor drain to overflow — threatening serious water damage to their newly renovated basement.
Despite multiple attempts with plungers and chemical cleaners, the clog kept returning.
We dispatched our emergency team the same day to the Welland property.Upon arrival, our licensed technician:
Rather than risking pipe damage with harsh chemicals or manual snaking alone, we recommended hydro jetting — the safest and most thorough method.
Using our high-pressure hydro jetting equipment (4000 PSI), we:
We then ran a second camera inspection to confirm the line was clear and free from hidden cracks or collapsed sections.
Total job time?
✅ Under 2 hours.
✅ Zero property damage.
✅ Full drain flow restored.
The homeowner’s basement drain now flows perfectly — even after heavy rain.
They were thrilled, especially because we saved their newly finished basement from expensive water damage.
We also advised them on preventive maintenance tips, including annual sewer inspections and eco-friendly enzyme drain cleaning to keep their lines healthy.

Posted on Google![]()
Laurence StevenTrustindex verifies that the original source of the review is Google.
Stuart McDowell and his team deserve the five star rating! In the aftermath of the two deluges north St. Catharines experienced in August 2026 we were left reeling. Stuart responded promptly to our call for a site visit and estimates. He helped us develop and put in place a water mitigation plan for both our interior and exterior needs. Despite being run off his feet with calls across the affected region of the city, Stuart kept us in the loop. We love our 1952 vintage cottage home and McDowell Drain and Waterproofing have helped us make it able to resist the storms that will surely come in the future.Posted on Google![]()
Anthony STrustindex verifies that the original source of the review is Google.
Stu came by after we noticed hydrostatic pressure and water in the basement. He spent over an hour of his own time making sure he had the right diagnosis of what was causing the pressure and came up with the most effective and cost efficient solution. He is honest, thorough and explained his solution. Crew came by within a few days right before a major storm and they were clean and quick. No more water and we can sleep easy at night knowing we don’t have to wake up to any more surprises in the basement. Give Stu a call for any waterproofing services, I’m happy we did.Posted on Google![]()
John MacLeodTrustindex verifies that the original source of the review is Google.
Stuart is a professional. His crew did expert workmanship in installing new weeping tile and sump pump in a timely manner. I would highly recommend McDowell Drain & Waterproofing.Posted on Google![]()
Eric TrogdonTrustindex verifies that the original source of the review is Google.
Awesome service. Very professional. Honest suggestions and recommendations. Saved me money and helped me sleep better at night. Very quick to respond after I left a message on the website. Thank you very much!Posted on Google![]()
racquel calaraTrustindex verifies that the original source of the review is Google.
Exceptional Service and True Professionalism! We had an outstanding experience with McDowell Drain and Waterproofing. The owner, Stuart McDowell, came out to our house personally to look at our water issue. What impressed us right from the start was his thoroughness—he took the time to completely investigate and determine the root cause of the problem before offering any recommendations. Stuart was incredibly determined to find the right, long-term solution for us. It is rare to find someone so dedicated to their craft. Beyond his technical expertise, he is a true gentleman and a consummate professional. It’s also very clear that he runs his business with high integrity; he is incredibly fair to both his clients and his workers. If you are looking for an honest, professional, and highly skilled waterproofing company, I cannot recommend Stuart and his team highly enough!Posted on Google![]()
bruceTrustindex verifies that the original source of the review is Google.
I am writing this review to commend Stuart for his honesty. My neighbour and I had an issue with draining from our window wells. Stuart explained how the drain works and it was probably a matter of water overload rather than a plugged drain. With our lack of knowledge Stuart could have convinced us to engage in an expensive excavation. He values his integrity and we value businesses with this type of leadership.Posted on Google![]()
D MTrustindex verifies that the original source of the review is Google.
This company is fantastic, Stuart arrived on time and immediately solved our sump pump issue. I will be recommending this company to anyone with drain service issues. 5 starsVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
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. |
Prevent grease from entering drains, use hair traps in showers, avoid flushing wipes, and schedule annual drain maintenance with McDowell Drain & Waterproofing.
Basement flooding during rain indicates drainage failure or hydrostatic pressure. Professional waterproofing and drainage correction are required to prevent structural damage.
Recurring leaks mean the underlying drainage or foundation issue was never properly resolved. Permanent interior or exterior waterproofing systems are required.
Yes. Water-leaking foundation cracks worsen over time and can compromise structural integrity if not professionally repaired.
Sewer backups occur when municipal systems overload. Installing a backwater valve or repairing drainage lines is the only permanent solution.
A failed sump pump leaves your basement vulnerable to flooding. Immediate repair or replacement is required to restore protection.
Cove joint leaks occur where the wall meets the floor and require an interior drainage system—not surface patching.
Yes. Persistent musty smells signal trapped moisture and potential mold growth that must be addressed through waterproofing.
Exterior water pooling increases pressure against foundation walls and leads to leaks. Drainage correction is required.
Yes. Insurers and home inspectors often require documented waterproofing repairs before approving claims or home sales.
Finished basement damage requires immediate waterproofing to stop repeat losses and protect the home’s value.