Facing a clogged drain in St. Catharines? Don't wait until a minor annoyance turns into major water damage. McDowell Drain & Waterproofing provides professional, fast, and reliable clogged drain services in St. Catharines and the Niagara Region. With over 45 years of hands-on expertise, we’re your trusted team for clearing blocked drains, drain repair & replacement, kitchen sinks, and more.
We proudly serve all of St. Catharines, including Port Dalhousie, Glenridge, Merritton, and beyond. Whether it’s a slow-draining tub or a full sewer backup, our experienced technicians respond 24/7 to protect your home and business with services like basement waterproofing.
As a Google Guaranteed and fully licensed contractor, McDowell Drain Services brings real professionalism and clear communication to every clogged drain job in St. Catharines. Whether you need help with window well windows, water proofing of basement, or a sudden drainage emergency, we make sure the entire process stays smooth from the first call to the final cleanup — no hidden costs, no surprises, and no mess left behind.


Clogged drain service in St. Catharines covers the diagnosis, clearing, and prevention of blockages in sinks, tubs, floor drains, and main sewer lines. We use cutting-edge tools like hydro jetters, motorized snakes, and video cameras to clear clogs and keep your pipes healthy for years to come. Along with this, services such as sewer camera inspection backwater valve installation, and interior basement waterproofing help ensure long-term protection.
Don’t ignore these signs — McDowell offers 24/7 emergency drain cleaning in St. Catharines to prevent sewage backups and protect your property.






Full Pipe Cleaning
Hydro jetting scours pipe walls clean, removing all buildup.
Odor Elimination
Remove trapped waste that causes foul smells and health risks
Property Protection
Prevent flooding, water damage, and costly pipe replacements.
Fast Emergency Response
24/7 clogged drain clearing services when you need them most.
Long-Term Solutions
Avoid recurring clogs and enjoy smoother plumbing performance.
Services Offered
Phone Number
Email Address
Breaks through hair, grease, and soap clogs fast.
Ideal for minor blockages in bathrooms and kitchens.
Blasts away grease, roots, and heavy sediment.
Ideal for stubborn clogs and full sewer line cleanings.
Pinpoints hidden issues like broken pipes, roots, and buildup.
Essential for long-term drain health and proper treatment.
Quick removal of clogs just beneath sinks and vanities.
We follow a proven method to clear your St. Catharines drains:

Diagnostic Inspection
Often we start with a camera scan to see the clog’s location and cause. This avoids guesswork and helps us choose the right tool.
Apply the Right Tool
For simple clogs, we use a motorized auger or snake to bite through the blockage. For tough grease, roots, or sediments, we bring in our high-pressure hydro-jetter – a specialized nozzle that blasts water to scour pipe walls clean.


Remove the Clog
We carefully push or jet the clog through until the line is open. This may involve several passes to ensure all debris is gone.
Verification
After clearing, we flush the drain or run camera again to confirm a clear pipe. We also test run water in all affected fixtures to ensure normal flow.

Clean Up & Prevention Tips
We clean the work area and dispose of waste properly. Finally, we share tips on maintenance (like monthly hot water flushes, drain traps, or root control) to keep your drains clear longer.
At McDowell Drain Services, clogged drains aren’t just another job — they are our specialty. Here’s why St. Catharines homeowners and businesses trust us above the rest:
45+ Years of Drain Expertise:
We bring decades of hands-on experience solving every type of clog, from bathroom sink blockages to full sewer backups. No guesswork — only expert solutions.
3500+ Projects Completed
We’ve successfully completed over 3,500 drainage and waterproofing projects across the region—earning the trust of homeowners and businesses alike.
Google Guaranteed Contractor
Our work and reputation have been fully vetted by Google. You get peace of mind knowing you're hiring a trusted, transparent, and top-rated company.
Emergency Service, 24/7
Drain disasters don't follow a schedule — neither do we. We offer fast, professional clogged drain clearing in St. Catharines day or night, weekends and holidays.
Advanced Technology
We invest in the latest hydro jetting equipment, drain cameras, root cutters, and snaking systems. Whatever your drain issue, we have the specialized tools to fix it right.
Upfront, Honest Pricing
No surprises here. Before we start, we explain the cause, solution, and exact cost. Our goal is to deliver affordable, lasting relief without the upsells or hidden fees.
No matter the cause or location of your clogged drain, McDowell Drain Services has the tools, skills, and experience to clear it — fast and safely. In St. Catharines, where both old clay sewer systems and newer PVC pipes exist, we adapt our solutions to fit your exact situation.
Here’s how we handle all types of drain problems across St. Catharines:
Caused by grease, food scraps, and soap buildup.
We use motorized drain snakes and hydro jetting to dissolve greasy blockages and restore free-flowing pipes.
Hair, soap scum, and toothpaste buildup are common in homes from Glenridge to Port Dalhousie.
Hair, soap scum, and toothpaste buildup are common in homes from Glenridge to Port Dalhousie.
“Flushable” wipes, roots, and debris can choke your main sewer line.
We offer sewer snaking, root cutting, and hydro jetting services in St. Catharines to fully clear and clean the line
Mud, leaves, sediment, and washing machine lint can clog floor drains, especially in older basements.
Our hydro jetting and drain clearing methods prevent messy basement floods and water backups.
St. Catharines’ beautiful mature trees can invade underground pipes, especially in areas like Merritton and Port Weller.
Our specialized root cutting equipment safely removes invasive roots without needing to dig up your yard.
Heavy rains can overwhelm outdoor drains clogged with dirt and debris.
We clean and flush outdoor storm drains to protect your property from water damage.
Don’t wait until a clog becomes a full-blown flood. Trust McDowell Drain Services for fast, expert clogged drain cleaning across St. Catharines and the Niagara Region.
Call (289) 407-2400 now or visit mcdowelldrain.ca to book your drain service.
Want to see the kind of work we do? Hear what real St Catharines homeowners have to say? Check out our verified Google listings: Mcdowell Drain Services St Catharines
Late on a Saturday night, a homeowner in Downtown St. Catharines (near Church Street) noticed water gurgling up from the basement floor drain. Within an hour, sewage started backing up into their laundry room — a classic case of a main sewer line clog caused by tree root intrusion.
The property was an older brick home (over 60 years old) with fragile clay sewer pipes — common in heritage neighborhoods like Downtown St. Catharines and Merritton. Traditional snaking methods might temporarily clear the clog, but the roots would grow back. They needed a permanent solution, fast, to prevent a costly flood.
McDowell Drain Services dispatched our emergency response team immediately. Here’s how we tackled it:
“McDowell Drain saved our home! They arrived in less than 45 minutes, explained every step, and didn’t leave until our drains were flowing perfectly. Professional, fair, and genuinely caring. Highly recommend them if you have a clogged drain in St. Catharines!”

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. |
How do I know if I need hydro jetting for my clogged drain in St. Catharines?
Are "flushable" wipes really bad for my plumbing?
What areas in St. Catharines do you serve?
How soon can you come for emergency clogged drain service?
We offer 24/7 emergency service in St. Catharines — usually arriving within an hour for urgent calls.
What’s the cost for professional drain cleaning?
What should I do if my basement floods during heavy rain in St. Catharines?
Basement flooding during rain indicates drainage failure or hydrostatic pressure. Professional waterproofing and drainage correction are required to prevent structural damage.
Why does my basement keep leaking year after year in St. Catharines?
Recurring leaks mean the underlying drainage or foundation issue was never properly resolved. Permanent interior or exterior waterproofing systems are required.
Are foundation cracks with water seepage serious in St. Catharines?
Yes. Water-leaking foundation cracks worsen over time and can compromise structural integrity if not professionally repaired.
Why is sewage backing up through my floor drain in St. Catharines?
Sewer backups occur when municipal systems overload. Installing a backwater valve or repairing drainage lines is the only permanent solution.
What happens if my sump pump fails in St. Catharines?
A failed sump pump leaves your basement vulnerable to flooding. Immediate repair or replacement is required to restore protection.
What is water seepage at the basement cove joint in St. Catharines?
Cove joint leaks occur where the wall meets the floor and require an interior drainage system—not surface patching.
Can musty odors mean serious moisture problems in St. Catharines?
Yes. Persistent musty smells signal trapped moisture and potential mold growth that must be addressed through waterproofing.
Why is water pooling around my foundation in St. Catharines?
Exterior water pooling increases pressure against foundation walls and leads to leaks. Drainage correction is required.
Do insurance companies require waterproofing repairs in St. Catharines?
Yes. Insurers and home inspectors often require documented waterproofing repairs before approving claims or home sales.
What should I do if my finished basement is damaged by water in St. Catharines?
Finished basement damage requires immediate waterproofing to stop repeat losses and protect the home’s value.