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TRUSTED BY MCHENRY, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon55
    Verified septic tank services reviews

Top-Rated Septic tank pros in Mchenry - Updated Nov 2026

Avatar for Mr. Rooter Plumbing of McHenry County
Mr. Rooter Plumbing of McHenry County
4.6(
26
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

In business since 2011

Free estimates

Emergency services offered

At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.\n

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+2

Recommended by84%of homeowners
Avatar for Chicago Water Pros
Chicago Water Pros
4.7(
76
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"We just bought a house on a private well and started noticing rust stains and a foul odor right away. The house came with an old softener, but it didn't seem to be working anymore. We got a few quotes for a system that would treat well water and decided to use Chicago Water Pros. Their tech was on time, very professional and knowledgeable. The price was very reasonable compared to the other quotes that we got, and they had a way better warranty and money back guarantee than anyone else by far. We bought a tank for iron treatment and a softener. The guy that came out to test our water and do the quote was there for the installation and came back out to re-test the water and make sure everything was working properly a few days after the install as well. We couldn't be happier with the water and the great service and price that we got. I'd recommend them to anyone!"
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+8

Recommended by90%of homeowners
Avatar for M and E Plumbing Service Inc
M and E Plumbing Service Inc
4.8(
57
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

In business since 2011

Credit card accepted

"The awesomeness started within a couple hours of purchasing my deal. Matt reached out to clarify a misprint in the deal, and assure I still wanted to go through with the deal. He was able to to schedule me at a time that worked with my busy schedule.
Darryl and Mike arrived right on time, first thing in the morning. I had originally purchased a hot water tank replacement deal. During the old tank removal, it was discovered that my ejector pump was not working. The crew was equipped to replace that at a reasonable price as well. They worked quick and professionally and had all the work completed in a timely manner. They made sure to have tarps available to protect my floors when moving the tanks in and out. The crew had such pleasant personalities, and I could tell they enjoyed what they were doing.
I highly recommend M&E Plumbing for any work you may need!!
"
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+1

Recommended by98%of homeowners
Avatar for GPD Septic Excavating - Startseite  Facebook
GPD Septic Excavating - Startseite Facebook
5.0(
5
)
Septic System - Repair

Serving Mchenry, IL and surrounding areas

In business since 1997

Free estimates

Credit card accepted

"Company was great and replaced the septic tank in a short time. They took the job after another company fell short of expectations. They did a fast and wonderful job in completing the work and my wife and I could not be happier."
Response time1 day
Recommended by100%of homeowners
Avatar for Windy City Rooter Inc
Windy City Rooter Inc
4.2(
73
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"Short review:  They're awesome!  Quick, fair, excellent work.  Longer Review:  I've used Max and Joe twice now - both very expensive undertakings.  My house was built in the 1940s and all the piping is in a crawl space (a plumbers dream!).  I had been replacing pipes as they broke with various plumbers.  I knew eventually they'd all have to be replaced, but I didn't feel confident with any of the plumbers I'd had for such a large investment.  Until Max came out..  He explained about the pipes, gave me an estimate on what HAD to be fixed, and also estimated replacing all.  I felt very confident he knew his business and was giving a fair price.  All the water pipes were replaced quickly and efficiently, along with the hot water tank.  About a year later, I had a furnace issue and Nicor also detected a leak in a gas pipe at a connection point.  Again, Max and Joe came out and gave me a price for what HAD to be replaced, along with an estimate for replacing all the gas pipes that would likely be leaking in the near future (due to the age and corrosion of them).  I elected to have all the gas pipes replaced and again, this was done quickly and efficiently.  They worked with Nicor to ensure everything was satisfactory and get the gas turned back on.  They respond immediately, assess the needed repairs, and get to work - doesn't seem to matter what day of the week it is.
"
Western Springs - Leak Repair in Foundation
Western Springs - Leak Repair in Foundation
Western Springs - Leak Repair in Foundation
Recommended by94%of homeowners
Avatar for HOP Hands On Professional
HOP Hands On Professional
5.0(
10
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

Emergency services offered

We are a family owned and operated company with over 15 years experience. We are a 24/7 company that is here for you when you need us. We keep the pipes draining the water clean so let us help keep the water in the pipes and not on the floor! \nCall or click for your estimate today!\n

Plumbing Project
Plumbing Project
Sanitize and cleanse well head to kill bacteria and flush iron
Plumbing Project
Leaking broke

+40

Recommended by100%of homeowners
Avatar for Mr Rooter Plumbing of Cook County
Mr Rooter Plumbing of Cook County
3.8(
26
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

In business since 2007

Emergency services offered

Credit card accepted

At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.\n\n\nAdditional phone number - (818) 300-1400. Additional fax - (847) 276-3333 & (847) 882-3002. Additional DBA - Mr. Rooter Plumbing - Cook County.

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+11

Recommended by68%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mchenry, IL and surrounding areas

In business since 1971

Credit card accepted

"I just pay $75 you never know who's going to come out. They do everything electrical. Just about everything is covered except the septic tank. I had an air conditioner replaced. It went great, all I had to do was pay for the freon. He didn't charge e more than what was needed."
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+2

Recommended by65%of homeowners
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Septic Tanks FAQs, answered by experts

Yes, you can adjust your well pump pressure relatively easily by yourself. You’ll need to remove the cover from your pressure switch and adjust a nut that controls cut-in pressure. Learn more about how to adjust a well pump pressure switch with a step-by-step guide to setting your water pressure.

Adding a thin layer of dirt over a septic drain field is fine, especially if soil erosion has occurred. However, adding too much dirt can compact the soil, reducing the drain field’s ability to absorb and filter wastewater properly. Avoid using heavy clay soil, as it can prevent proper drainage. Instead, use a light layer of topsoil and plant grass to help with soil stability.

The disadvantages of having a well include more maintenance, like annual testing and inspections, and high up-front costs to drill a well. Well water is also vulnerable to contamination, which is why keeping up with testing is important if you own a well. When it comes to well water versus city water, well water does offer more independence and is a reliable water source.

Ideally, you should conduct a mechanical inspection and a bacterial or well water inspection yearly. While you might be able to push it off to every other year, it’s best to have peace of mind, especially when it comes to something that you use so frequently. 

If you experience repeated gastrointestinal illness in the household, it's important to test the well water more regularly for quality and cleanliness to check for bacteria.

The average cost to replace a septic tank or install a new system is typically around $7,350, with a broader average range of $5,000 to $12,000. However, total project costs can vary widely, from $5,000 to as much as $22,500. Key factors influencing the price include the size and type of the septic system, the tank material, and the size of your house.

It's important to distinguish between the cost of the tank itself and the cost of the entire system installation, which is significantly more. For the tank alone, costs vary by size:

  • A tank for a one-bedroom house typically costs $500 to $900.

  • A 1,000-gallon tank, suitable for most one- to three-bedroom homes, costs between $900 and $1,500.

  • A tank for a five- or six-bedroom home generally costs $1,200 to $1,600.

The Mchenry, IL homeowners’ guide to septic tank services

From average costs to expert advice, get all the answers you need to get your job done.