Cornwall Septic Services — Pumping, Repair & Installation Done Right
Slow drains, sewage smell in the yard, alarm going off, or a tank that hasn't been pumped in years? We show up on time, tell you exactly what's wrong, and fix it with upfront flat-rate pricing. Serving Cornwall, Long Sault, Ingleside, Lancaster, Alexandria and rural properties across SD&G — day or night.
Full-Service Septic Company for Cornwall & the Counties
Step outside Cornwall's city limits and almost every home — Long Sault, Ingleside, Lancaster, Williamstown, Martintown, Glen Walter and the concession roads between them — runs on a septic system. When it acts up, there's no city crew to call. That's where we come in.
Cornwall Septic Services handles the whole life of your system: pumping, cleaning, inspections, repairs, new installations and ongoing maintenance. Licensed trucks, written flat-rate pricing, and a crew that shows up when it says it will.
- Licensed & Fully Insured
- 24/7 Emergency Septic Service
- Flat-Rate Written Pricing
- Residential, Commercial & Farm
When to Call a Septic Service in Cornwall
Septic trouble rarely starts with a flood. It starts small — and gets expensive if you wait. These are the calls we get most.
Slow Drains & Gurgling Toilets
Usually the first sign the tank is full or the outlet baffle is clogged. A pump-out and inspection catches it before it backs up into the house.
Sewage Smell or Soggy Yard
Standing water or an odour over the leaching bed means effluent isn't draining — a saturated bed, crushed pipe or failed distribution box.
Alarm Going Off
A high-water alarm on the pump chamber means the effluent pump failed or a float is stuck. We carry replacement pumps on the truck.
Can't Remember the Last Pump-Out
If it's been more than 3–5 years, sludge is already creeping toward the outlet. A scheduled pump-out now is a fraction of the cost of a new bed later.
Septic Services in Cornwall, Ontario
One company for the full life of your system — from routine pumping to a brand-new leaching bed.
Septic Tank Pumping
Every 3–5 years, or sooner if drains slow down. Pump-out plus a tank and baffle inspection, with no hidden disposal fees.
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Septic Installation
New builds and full replacements — soil test, design, South Nation Conservation permit, excavation and final inspection, one crew.
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Septic System Repair
Cracked tanks, failed pumps, broken baffles, collapsed lines and flooded beds — diagnosed properly and fixed the same day where possible.
Learn moreAlso available across Cornwall & SD&G
Septic tank cleaning · Septic inspections & pre-purchase reports · Holding tank pump-outs · Riser & effluent-filter installs · Baffle & pump replacement · Maintenance plans
For these or anything else septic-related — book online or call and we'll sort it out.
How a Septic Service Call Works With Us
You shouldn't need to understand how a leaching bed works to hire someone to fix it. Here's exactly what happens from the moment you call.
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1
You call, we ask the right questions
Symptoms, tank age, last pump-out, where you are in the counties — so the right truck comes the first time.
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2
Flat-rate price before we start
Written, with disposal and any locating or digging spelled out. No "we'll see when we open it."
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3
Service, inspection and plain-language findings
We pump, clean or repair, check the baffles and bed, and show you what we saw — not a sales pitch.
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4
Clean site, record on file
Lids back, lawn tidy, and your service date logged so we can remind you before the next one's due.
Need a Septic Company in Cornwall Today?
Pumping, cleaning, repair or a new system — one call, a written price, and a truck on the way.
Homes, Farms & Businesses — Every Septic System in the Counties
A bungalow in Long Sault, a dairy operation outside Avonmore and a restaurant on Highway 2 don't have the same septic system — or the same problems. We've worked on all of them.
Rural Homes & Cottages
Routine pump-outs, pre-sale inspections, pump and baffle repairs, and full replacements on older properties with steel or concrete tanks.
Farms & Large Properties
Multiple tanks, holding tanks, systems serving a house plus a workshop or bunkhouse, and long laneways our trucks can actually reach.
Restaurants, Campgrounds & Commercial
High-volume tanks, grease interceptors, seasonal pump-out schedules and after-hours service so you never close for a septic truck.
Septic Services in Cornwall — Common Questions
What septic services do you offer in Cornwall and SD&G?
Septic tank pumping and cleaning, inspections, repairs, full system installation and replacement, riser and filter installs, and 24/7 emergency service — for homes, farms and businesses across Cornwall and the surrounding townships.
How much do septic services cost in the Cornwall area?
A routine pump-out is a flat rate with disposal included. Repairs and installations are quoted in writing after we see the site. Locating a buried lid, a tank over 1,000 gallons, or extra digging is priced up front — never added to the invoice afterward.
Do you provide septic services for commercial properties and farms?
Yes. We service restaurants, campgrounds, churches, farms and multi-unit rural properties across Cornwall and SD&G — high-volume tanks, holding tanks and scheduled pump-outs timed around your season or opening hours.
Do I need a septic inspection when buying a rural home near Cornwall?
Strongly recommended — and many lenders require it. A failed leaching bed can cost more than a kitchen renovation. We pump the tank, inspect the tank, baffles and bed, and give you a written report before you close.
Do you provide emergency septic service on nights and weekends?
Yes — 24/7 including holidays. Sewage backing up or an alarm you can't silence doesn't wait for Monday, and neither do we.
Is a permit required for septic work in Cornwall, Ontario?
Pumping and cleaning don't need one. Installing, replacing or significantly altering a system does — South Nation Conservation issues those permits for Cornwall and the surrounding townships under OBC Part 8, and we handle the application and inspections for you.
Book Septic Service in Cornwall
Pumping, cleaning, inspection, repair or a new system — leave your details and we'll call back with a flat-rate price.
Need It Today?
Backups, alarms and overflowing tanks don't wait. Our emergency line is open 24/7.
(613) 702-1122Request a Callback
We'll get back to you within the hour. For emergencies call (613) 702-1122.
Thank You!
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What Cornwall Says About Our Septic Services
Homeowners, farmers and business owners across SD&G who called us for septic service — in their own words.
Toilets started gurgling and the lawn over the tank went soft. Searched "septic services near me" and these guys were out the same afternoon. Pumped it, found the outlet baffle had collapsed, fixed it on the spot. Flat price, exactly as quoted on the phone.
Derek M.
Long Sault · Sep 2026
Bought a century home outside Williamstown and the lender wanted a septic inspection before closing. They pumped, inspected the tank and bed, and sent a written report the next morning. Found a cracked baffle the seller agreed to cover. Saved us a headache.
Julie C.
Williamstown · Aug 2026
Our leaching bed finally gave out after 40 years. They handled the design, the South Nation permit, the dig and the inspection — one crew start to finish. Yard was put back better than they found it. Real septic company, not a guy with a truck.
Robert L.
Martintown · Jul 2026
We run a campground near Ingleside and the main tank alarm went off on the Saturday of a long weekend. Googled "emergency septic service near me", they picked up, and had a pump replaced before the evening rush. Can't ask for more than that.
Steve B.
Ingleside · Jun 2026
Couldn't remember the last time the tank was done — turned out to be nine years. They did a full cleaning, not just a pump, put a riser on so no more digging, and set us up on a reminder. Honest advice, no scare tactics about replacing the whole thing.
Monique P.
Alexandria · May 2026
Sewage backing up in the basement floor drain on a Sunday. They talked me through shutting off water, came out that night, and traced it to a crushed line between the house and tank. Dug it, replaced it, done by noon Monday. Top-notch septic service for the counties.
Alain G.
Glen Walter · Apr 2026
Septic Services Across Cornwall, SD&G & Prescott-Russell
Based at 17171 Cornwall Centre Rd in South Stormont — same flat-rate pricing whether you're inside city limits or at the end of a concession road.
Our Office
17171 Cornwall Centre Rd, Unit 7
South Stormont, ON K0C 1P0
Cornwall & Glengarry
Stormont & Dundas
Prescott-Russell
Don't see your township? (613) 702-1122 — we cover all of SD&G and Prescott-Russell.