overhead sewer conversion

Overhead Sewer Conversions in Rolling Meadows

We handle overhead sewer conversions for homeowners that are dealing with sewage coming up into their basement! We serve Arlington Heights, Palatine, Mount Prospect, Schaumburg, Des Plaines, and many of the surrounding areas, and we are also able to help you with your village's rebate.

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Workers clear debris and damaged flooring in a kitchen during a renovation or cleanup.

Why Sewage Comes Up Through Your Basement Floor Drain

Here in the Northwest Suburbs, a lot of the older homes have what's called a gravity sewer. A gravity sewer means the plumbing in your basement drains down under the floor and then out to the village's main line, and for most of the year, this doesn't cause any type of problem. However, during heavy storms, the village's main line can take in more water than it was designed to handle, and when this happens, it's called surcharging. When the main line surcharges, the water and sewage in it needs to escape somewhere, and it will usually end up escaping through the lowest point it's connected to, which in a lot of homes is the floor drain in the basement.


Not only that, but this is very much possible even if your own sewer line is in good shape, as the problem is coming from the main line and not your home. That's also why when one home on your street has sewage come up during a storm, there's a good chance some of your neighbors are dealing with the same thing.

Worker standing in a narrow trench beside brick walls, holding a pipe in a muddy excavation area.

Signs Your Home May Need an Overhead Sewer

Sewage Has Come Up Through Your Floor During A Storm

Your Neighbors Have Had Sewage Backups in their Basements

Your Home Was Built Before the Mid-1970s and Still Has the Original Gravity Sewer

Your Basement is Finished or Has a Bathroom in it

You Keep Items in your Basement That Would Be Expensive to Replace

What Is an Overhead Sewer?

An overhead sewer is a system where the plumbing in your basement no longer drains down below the floor. Instead, anything in your basement that's below the level of your sewer line, like floor drains, laundry rooms, and bathrooms, will drain into a sealed pit. An ejector pump in the pit then pumps the waste upward to a pipe that runs along your basement ceiling, and from there, the waste leaves your home and goes out to the village's main line normally.


Since nothing in your basement is connected to the main line below the floor anymore, there is no way for sewage to come back up into your basement, even when the main line surcharges during a storm. This is why overhead sewers are recommended for homeowners that have dealt with backups before, and it's also why so many villages around here are willing to help pay for them.

How We Handle Overhead Sewer Conversions

Step 1:

Camera Inspection and Free Estimate

We will start by running a camera down your current sewer line to check the condition it's in. Then, we will go through your basement and figure out the best spot for the pit and the overhead line. Once we figure out the details, we will provide you with a free estimate. If you live in Arlington Heights, the village requires a camera inspection to apply for their rebate, so this will take care of that for you as well.


Step 2:

Village Approval and Permits

If you're applying for a rebate, your application will need to be submitted and approved by your village before any work can begin. We will help you with certain parts of the application, and once it's approved, we will retrieve the necessary permits to go forward with the conversion.


Step 3:

Cutting the Pit and Rerouting the Plumbing

We will cut an opening in your basement floor to install the pit, and then reroute anything below the sewer line to drain into it. If your footing drains are connected to your sewer, they will usually need to be disconnected and sent to a sump pump, and some villages do require this to qualify for their rebate.


Step 4:

Installing the Ejector Pump and Overhead Line

Once the pit is in place, we will install the ejector pump, run the new overhead line, and disconnect the old line under your basement floor. Then, we will test the system to ensure it's turning on and pumping everything out properly.


Step 5:

Final Inspection

Your village will come out to inspect the work and sign off on it. If you're applying for a rebate, you will then be able to submit your paperwork to get reimbursed, and we will be on our way!


The Tradeoffs

We always have your best interests in mind, and we want to make sure you know the tradeoffs of an overhead sewer before making any decisions. To start, it is not a cheap job, and it does require opening up part of your basement floor. The ejector pump also needs power to run, so if the power goes out, you will either need a battery backup or you will need to avoid using the plumbing in your basement until the power comes back. Ejector pumps also typically last 7-10 years, so at some point down the road, the pump will need to be replaced.


If your basement is not finished, there's nothing valuable down there, and you've never had sewage come up through your floor drain, this honestly might not be something that you need right now. But, if you have had a backup before, or if your basement is finished, an overhead sewer should definitely be something you consider.

Inspection monitor showing a corroded pipe interior while gloved hands adjust the controls
Person lowering a white PVC pipe into a dug trench with muddy water in the bottom

Your Village Will Help Pay For It

Many villages in the Northwest Suburbs will actually help pay for an overhead sewer conversion, and some of them will even cover most of the cost. Here are some of the rebates currently being offered in the areas we serve:


Arlington Heights: 75% up to $11,250

Mount Prospect: 50% up to $7,500

Palatine: 50% up to $6,000

Schaumburg: 50% up to $5,000

Des Plaines: 30% up to $2,000 through the Flood Rebate Program


Most of these villages require your project to be approved before any work starts, and Mount Prospect will not reimburse any work that was done before approval. Each village has its own eligibility rules and requirements, and these programs can change, so please contact us at any time and we'll be happy to go over everything with you and find out what you qualify for. For more information, check out our Arlington Heights, Palatine, Mount Prospect, and Des Plaines pages.

Overhead Sewer Conversion FAQ

How much does an overhead sewer conversion cost?

Will an overhead sewer stop all water from coming into my basement?

What happens to my overhead sewer if the power goes out?

Is an ejector pump the same thing as a sump pump?

Do I need three estimates to get the rebate?

My basement is backing up with sewage. What should I do?

Schedule a Free Overhead Sewer Estimate

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Looking to Convert to an Overhead Sewer?

H2O Plumbing & Sewer Services provides many sewer services, including overhead sewer conversion, for homeowners across Rolling Meadows, Arlington Heights, Palatine, Schaumburg, and the Northwest Chicago suburbs.

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