Date Posted: 2026-08-28
Septic Tank Risers: Are They Worth Installing in Ontario?
If your septic tank lids are buried below your lawn, you may already know the routine.
Every time the tank needs to be pumped, inspected or serviced, someone has to find the access points and dig them up again.
A septic tank riser can eliminate much of that inconvenience.
A properly installed riser brings the septic tank access closer to finished grade, making the tank easier to reach for future pumping and maintenance.
For many Ontario homeowners—particularly those with tank lids buried well below grade—risers are a simple upgrade worth considering.
What Is a Septic Tank Riser?
A septic tank riser is an extension installed over an access opening in the septic tank.
Instead of having the septic tank lid buried under soil, the riser extends upward toward the surface and is fitted with a secure access cover.
The purpose isn't to change how the septic system operates.
It simply makes the tank easier to access.
Depending on the existing tank and installation, a riser can bring the access opening to or close to finished grade.
That can make a significant difference every time the system needs to be serviced.
Why Are So Many Septic Tank Lids Buried?
Many older septic systems were installed with their access lids below finished grade.
That means the lids have to be uncovered whenever the tank needs to be pumped or inspected.
Over time, locating them can become more difficult.
Lawns get regraded. Gardens are installed. Landscaping changes. Homeowners change. Records get lost.
A lid that was easy to locate ten years ago may now be hidden under several inches of soil and sod.
If you're not even sure where your tank is located, our guide on how to find your septic tank and access lids before pumping explains several good places to start.
What Are the Benefits of Septic Tank Risers?
The biggest advantage is straightforward:
You don't have to dig up the septic tank every time it needs service.
But there are several practical benefits.
Easier Septic Pumping
Routine septic pumping requires access to the tank.
If the lids are buried, they normally need to be located and exposed before the tank can be properly serviced.
Accessible risers can eliminate much of that preparation.
If your tank is due for service, you can learn more about Allto Construction's septic pumping and cleaning services throughout South Central Ontario.
Less Digging and Lawn Repair
Without risers, the same area of lawn may have to be excavated every few years.
Then the soil and sod have to be put back.
With accessible risers, you're making a one-time improvement that can reduce repeated excavation during future service calls.
Easier Inspections and Maintenance
Pumping isn't the only reason a septic professional may need to access your tank.
Depending on your system, access may be required for inspections, effluent-filter cleaning, troubleshooting, repairs and other maintenance.
Allto provides septic system repair and maintenance services in addition to pumping, so accessible tank openings can be useful throughout the life of the system.
Easier to Locate in the Future
Once properly installed at or near finished grade, risers make the tank location obvious.
That can be particularly helpful when a property changes ownership.
It also means you aren't searching through old drawings or digging exploratory holes several years from now because you've forgotten exactly where the tank is.
Faster Access When Something Goes Wrong
Nobody plans for a septic problem.
If you're dealing with a backup, alarm or another urgent issue, having readily accessible tank openings can make it easier for a technician to inspect the system and determine what's happening.
Are Septic Tank Risers Worth the Cost?
For many homeowners with buried tank lids, yes, they can be.
The value isn't that a riser improves the treatment performance of your septic system.
It doesn't.
The value is convenience and accessibility.
Consider how often the tank may need to be accessed over the remaining life of the system.
Even if pumping is only required every few years, the tank may also need to be opened for inspections, filter maintenance, troubleshooting or repairs.
Rather than repeatedly paying for or doing excavation around the tank, risers provide more permanent access.
The deeper your existing lids are buried, the stronger the case generally becomes.
When Is the Best Time to Install Septic Tank Risers?
One of the most convenient times to consider risers is when your tank is already exposed for pumping.
If the crew already has access to the tank openings, that's a logical opportunity to assess whether risers make sense.
The same applies during certain septic repairs or inspections where the tank has already been uncovered.
If your tank is approaching its normal service interval, read our Ontario Septic Pumping Guide for information about pumping frequency, typical costs and signs that your tank may need attention.
Can Risers Be Added to an Existing Septic Tank?
In many situations, risers can be added to an existing tank.
However, septic tanks vary considerably in age, material, design, number of compartments and existing access configuration.
The appropriate solution should therefore be based on the actual tank rather than assuming every property needs the same components.
Before installing risers, the tank and existing access points should be assessed to determine what will work properly.
How Many Risers Does a Septic Tank Need?
That depends on the tank.
Many septic tanks contain more than one compartment, and access requirements can vary with the design of the tank.
The objective should be to maintain appropriate access for pumping, inspection and servicing—not simply to install one convenient-looking lid in the lawn.
This is something to discuss with the septic contractor while the existing tank is exposed.
Should Septic Risers Be Flush With the Lawn?
The appropriate finished height depends on the specific installation.
Homeowners often prefer an installation that is unobtrusive and easy to maintain around.
At the same time, the entire reason for installing a riser is to provide practical access.
Burying the new access under a substantial amount of soil defeats much of the purpose.
A septic professional can recommend an appropriate finished elevation based on the tank, surrounding grade and riser being installed.
Are Septic Tank Risers Safe?
They need to be properly installed and securely covered.
A septic tank should never be left with an unsecured opening.
Septic tanks contain wastewater and can contain dangerous gases. An open tank can also present a serious fall hazard.
Children and pets should never have access to an open septic tank.
The access lid and riser assembly should be suitable for the application and kept securely closed when the system isn't being serviced.
Can You Cover a Septic Riser With Landscaping?
It's understandable that homeowners don't necessarily want a septic lid to become the centrepiece of their backyard.
But avoid permanently blocking access.
Large rocks, sheds, decks, retaining walls, heavy planters or other permanent features can make future septic service considerably more difficult.
Light landscaping may sometimes help visually blend an access point into the property, but technicians still need to be able to reach it safely and efficiently.
Accessibility should take priority.
Do Septic Risers Mean You Don't Have to Pump the Tank?
No.
A riser only changes how you access the septic tank.
It doesn't reduce the amount of solids entering the tank, extend the capacity of the tank or replace regular maintenance.
Septic tanks still need to be monitored and pumped as required.
Allto's experience servicing septic systems throughout South Central Ontario is that pumping frequency varies depending on household use, tank size, wastewater volume and how the system is treated.
For most homeowners, the important thing is not simply relying on the calendar. Keep service records and have the system maintained appropriately.
Our Septic Pumping Guide goes into more detail about pumping intervals and the factors that affect them.
Should You Install Risers During Your Next Pump-Out?
If your septic tank lids are buried and have to be excavated every time the system is serviced, it's worth having the conversation.
You don't necessarily need risers just because your neighbour has them.
But if accessing your tank involves repeatedly locating it, removing sod and excavating the lids, improving the access can make future maintenance substantially easier.
When your tank is next being pumped, ask the technician to look at the existing access and discuss whether installing risers makes sense for your particular system.
Need Septic Pumping or Help With Your Septic System?
Allto Construction has been working with septic systems throughout South Central Ontario since 1969.
We provide septic pumping, inspections, maintenance, repairs, design and installation for residential and commercial properties.
If your tank is due for pumping—or you'd like to discuss improving access to buried septic tank lids—give our office a call.
Call Allto Construction at 1-866-295-1967 or learn more about our septic pumping services.
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SINCE 1969.