Septic System Installation & Repair in Kingston
M. Riddle Excavating designs, installs, repairs and replaces septic systems for homes and cottages in Kingston, Greater Napanee, Frontenac County, Bath and Loyalist, Gananoque, Rideau Lakes and Prince Edward County. We coordinate the design with trusted designers, handle the permit application and inspections, and do the excavation and installation ourselves. We are a family-run, Kingston-based contractor with more than 20 years in the business, rated 5.0 from 41 Google reviews.
Septic Repair and Replacement in Kingston
Slow drains, sewage backing up, foul smells or soggy ground over the tank or bed are the usual signs that a septic system needs attention. If your system is showing them, call us. We dig down, find what has failed, and repair or replace the part that needs it, whether that is a tank, the distribution pipes or the leaching bed. See the signs your septic system is failing.
Repairs and replacements need a permit from your municipality, just like a new system, and we handle that for you. Whether you are building a new home, replacing a failing tank, or repairing a backed-up system, the process starts with a site visit.
Septic System Design
A septic system has to be designed for your lot and your household before it can be permitted. The design starts with a site evaluation: test holes, depth to rock, soil saturation and permeability, and the distances to your well, buildings, property lines and any water. Household size and daily water use set the size of the tank and bed.
Ontario’s Building Code requires septic systems to be designed and installed by people qualified under the Code. We work with trusted designers, and the design they prepare goes into your permit application. For budgeting, read what a septic system costs in 2026.
Septic Permits and Inspections, Handled
Septic permits around Kingston come from the municipal or township building department, not the health unit. In Kingston, the City issues the permit for systems up to 10,000 litres per day; outside the city, your town or township does. Once your design is ready, we handle the rest: the permit application, the installation plan, the schedule and the inspections.
We work with trusted designers, keep up with municipal requirements, and walk you through the septic permit process step by step.
Septic System Installation
We install standard tank and leaching bed systems, as well as advanced treatment systems where the site needs them, for residential and rural properties. Every install depends on the property layout, the soil and the tank size, and we set up the excavation, tank placement, piping, backfill and final grading to suit the site.
Tight lot, landscaping in the way, or an old system to take out first? See our septic system projects, including an Eljen system in Inverary and a filter bed removal and new install in Kingston.
We Keep You Involved at Every Step
At M. Riddle Excavating, we keep you involved from tank sizing and layout to permitting and final inspection. We explain the tank size, the pipe layout and the inspection schedule, so you know what you are paying for.
Not sure what kind of system your property needs? Learn about the different types of septic tanks and what a septic inspection checks.
Why Homeowners Trust M. Riddle for Septic Services
- Over 20 years of septic system experience in southeastern Ontario
- Installation for residential and commercial properties
- Rated 5.0 from 41 Google reviews
- Permit applications and inspection coordination handled for you
- Serving Kingston, Greater Napanee, Frontenac County and area
Need Septic Service in Kingston or Surrounding Areas?
New installation, repair or full replacement: tell us about your property and what you need. Call 613-545-7955, Monday to Friday, 7 to 5, or send the form for a free quote.
Office Hours
- Monday - Friday: 7AM - 5PM
Speak to Our Team Today
- Phone: 613-545-7955
- Email: mriddleexcavating@outlook.com
Frequently Asked Questions About Septic System Installation & Repairs
The City of Kingston issues the building permit for septic systems up to 10,000 litres per day; larger systems go through the Ministry of the Environment, Conservation and Parks. Outside the city, your town or township building department issues it. We prepare and submit the application for you.
It depends on what has failed. If the tank or the leaching bed is the problem and the rest is sound, replacing that part can be enough; we confirm on site. Repairs need a municipal permit, which we handle.
Signs include slow drainage, sewage backup, foul smells, or soggy ground near the tank or bed. If your system is over 25 years old, it may be time for an inspection.
Typical installs take 2 to 4 days depending on soil conditions, tank size and weather, once the permit is issued. We aim for minimal disruption to your property.
We install and repair septic systems in Kingston, Greater Napanee, Frontenac County, Bath and Loyalist, Gananoque, Rideau Lakes and Prince Edward County. Call 613-545-7955 for a free quote.