Get matched with top septic tank pros in Mendon, MI

Q: How do you add or replenish good bacteria in a septic tank?

• <div><p>Your septic tank naturally contains the beneficial bacteria it needs to function, so you typically don't need to add more. However, if you wish to replenish the bacteria, you can use natural methods. For example, you can add three overripe tomatoes to your garbage disposal or flush 1/4 ounce of active yeast down the toilet every three months. While store-bought septic enzymes and chemicals are available, many experts consider them unnecessary and potentially harmful. The most effective way to maintain a healthy bacteria population is to avoid using chemical drain cleaners, which can kill the good bacteria in your system.</p></div>

Q: What psi should a well pressure tank be set at?

• <div><p>The pressure in a well pressure tank should be set 2 to 3 PSI below the pump's cut-on pressure. The cut-on pressure is the lower number in the pressure setting (e.g., the '30' in 30/50 PSI) and is the point at which the pump starts. The cut-out pressure is the higher number, where the pump stops.</p><p>For example:</p><ul><li><p>If your pressure switch is set to 30/50 PSI, the tank pressure should be 27-28 PSI.</p></li><li><p>If your pressure switch is set to 40/60 PSI, the tank pressure should be 38 PSI.</p></li></ul><p>Common pressure settings for household applications include 20/40, 30/50, and 40/60 PSI. The difference between the cut-on and cut-out pressure is typically 20 PSI.</p></div>

Q: What are the signs of a full septic tank?

• <div><p>Common signs that a septic tank is full include plumbing issues, odors, and changes in your yard. You may notice wastewater or sewage backing up into your home's drains, or that sinks, tubs, and toilets are draining slowly. Gurgling or bubbling sounds from the pipes are also a key indicator. Outside, you might smell foul sewage odors around your house or the septic tank area. Look for pooling water, spongy soil, or a marshy environment around the drain field. Another tell-tale sign is a patch of grass over the septic system that is suddenly lusher and greener than the rest of your lawn. If you notice any of these signs, you should contact a septic professional for an inspection and pumping.</p></div>

Q: How deep are most residential wells?

• <div><p>Most shallow residential wells are somewhere between <b>25 and 50 feet deep</b>. They are among the simplest well systems. Deeper wells usually involve drilling to a much greater depth. Water wells for household use are typically <b>100 to 500 feet deep</b>, depending on local groundwater conditions. Some may be up to 1,000 feet deep or more. </p></div>

Q: Is a deep well better than a shallow well?

• <div><p>Depending on local conditions, a deep well may be a better choice than a shallow well. Deeper well depth accesses groundwater that has been naturally filtered through many layers of soil and rock. This reduces surface contaminants and may offer cleaner water, but deep wells cost more money to build and maintain. The water may be harder and have higher radioactivity, too. </p></div>

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Verified Reviews for Septic Tank Service pros in Mendon, MI

*The Angi rating for Septic Tank Service companies in Mendon, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Mendon, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on December 04, 2025

Reviewed in December 2025
Lamar is amazing! Not only did he do excavating for our new house build, but he also installed our new septic. He did such a good job that even the inspector said it was one of the nicest installs he has seen. Highly recommend!
M&M Excavating, LLC
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Reviewed in June 2022
I contacted Bel-Aire Heating & Air for a furnace and air inspection and they were able to get me in quickly. I knew my furnace was older and wasn't operating very well and their tech was able to confirm what I suspected was happening with my furnace. They scheduled a comfort advisor to come out...
Bel-Aire Heating & Air Conditioning-Kalamazoo
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Reviewed in March 2019
Repaired my hot water heater tank â ¦.Jason the installer was a professional and did a great job and cleaned up all his mess! highly recommend this company.
Quality Plumbing and Drain
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Reviewed in August 2017
He did a thorough job to make sure every thing was out of the tank. Much better than others in the past. He also started right away on digging out the old access cover even though he didn't have the new cover with him. He came back 2 days later and completed the job. Looks great when he got done.
Richards Sewer & Septic Service LLC
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Reviewed in March 2015
<p>We called Roto Rooter because we were having problems with the toilet flushing, and were worried that our outside drain might be plugged up. A plumber came when he was supposed to, asked if the toilet was the only thing we were having problems with, to which we said, yes. He determined...
Roto-Rooter Plumbing & Drain Services
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Reviewed in November 2012
They responded in a very timely manner and came out the next day to give an estimate. He knew right away what is was going to take to get it done. A few days later as scheduled they came with a mini excavator to dig out the old pipe and replace it with new all the through the wall of the house...
Modern Plumbing Sewer & Drain Contractors
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Reviewed in November 2012
First time we pumped at this house, my drawings left a lot to be desired but he was able to quickly figure out where tanks were, not exactly where both of our drawings said! Great service. <br />
Clean Earth Environmental Contracting
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Reviewed in October 2012
Last spring our septic failed and had to be replaced. This involved tearing up our front yard. <br /> The septic guys had to be put electrical outlet on a post placed in the middle of my flower bed right <br /> at the front of the house. It stands about 3 feet tall and is ugly. This to...
MURRAY LANDSCAPING LLC
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Reviewed in August 2012
I had already drained the toilet bowl and tank. Two men arrived on time and gave me the estimate for the job, but due to a sewer emergency at another location they had to leave before starting the work. I agreed to have the work done because I was already going to be charged a service charge...
Dan Wood Company
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Find Septic tank pros in Mendon

Godley Costruction

New to Angi

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Mendon, MI and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

I build and sell modular and manufactured homes also excavating in land clearing\nSnow plowing backhoe service Drain fields septic systems \n

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Mendon, MI and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"Very happy with the new toilet install."

Recommended by63%of homeowners

Request Quote

A & R Wastewater Management

3.8(

)

Septic Tank - Clean or Pump OutSeptic System - Install or ReplaceSeptic System - Install or Replace - For Business+3 more

Serving Mendon, MI and surrounding areas

In business since 1972

Free estimates

Emergency services offered

Since 1972, A&R has been a trusted leader in Septic, Sewer, and Environmental Services for residential, commercial, and industrial clients. With decades of expertise and a commitment to quality, we provide dependable solutions for wastewater system maintenance, repair, and environmental compliance. Our team is available 24/7, offering fast, reliable support by phone, text, or email whenever you need us.

+10

Response time3 days

Response rate100%

1 neighbors recently requested a quote

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mendon, MI and surrounding areas

In business since 2024

Free estimates

After over 10 years invested into the field, we are professional and affordable. These types of projects can be very intimidating and costly and we strive to make this process easier and affordable.

Recommended by100%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mendon, MI and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"I had to pay an $85 service call fee (on top of monthly Choice Home Warranty subscription) to have a guy literally look at the outside of the tank and tell me it was just the burner."

Recommended by81%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mendon, MI and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"Quick and professional removal and installation! Also replaced cold water galvanized pipe running from main to water heater with pex. Will consider using M&S in the future to replace remaining galvanized pipes in the future."

Recommended by69%of homeowners

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Coe's Drain Cleaning Specialists

5.0(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mendon, MI and surrounding areas

In business since 1994

Emergency services offered

If you are ever in a situation in which you need plumbing services performed within your home or business, we strongly encourage you to contact Drain Cleaning Specialists immidiatly. While we are not a free service, we do offer experienced plumbing contractors who can get the job done in a fast and efficient manner. You can reach us with a single call on (269) 692-2738 whenever the need for plumbing services is needed.

Recommended by100%of homeowners

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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 Mendon, MI and surrounding areas

In business since 1971

Credit card accepted

"The technician emptied the freezer, which was in the basement, to work on the part that needed repair. Then he neglected to put anything back into the freezer, including a turkey I had bought for Christmas and a rack of ribs. Two days after he left, I went out of town for two weeks. The turkey actually exploded and spewed its liquid all over everything, which had to be discarded. I let AHS know and they couldn't even bother to call me or follow up on this. I'm considering not renewing my contract with them because of the quality (or lack thereof) of many of the providers they send."

Recommended by65%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Mendon, MI and surrounding areas

In business since 2020

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n\n

Response time4 hrs

Recommended by100%of homeowners

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MichiganPro Home Inspections Saginaw-Bay City-Midland-BadAxe

4.3(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Mendon, MI and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Kase did our new home inspection as well as the well/septic for the home we were selling. He was on time, professional and extremely pleasant to work with. When the VA needed some additional documents for our mortgage he got them right over to us (same day). And the owner and office manager were always friendly too. I would hire this company again and again."

Recommended by100%of homeowners

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Showing 1-10 of 17

Septic Tanks questions, answered by experts

Your septic tank naturally contains the beneficial bacteria it needs to function, so you typically don't need to add more. However, if you wish to replenish the bacteria, you can use natural methods. For example, you can add three overripe tomatoes to your garbage disposal or flush 1/4 ounce of active yeast down the toilet every three months. While store-bought septic enzymes and chemicals are available, many experts consider them unnecessary and potentially harmful. The most effective way to maintain a healthy bacteria population is to avoid using chemical drain cleaners, which can kill the good bacteria in your system.

The pressure in a well pressure tank should be set 2 to 3 PSI below the pump's cut-on pressure. The cut-on pressure is the lower number in the pressure setting (e.g., the '30' in 30/50 PSI) and is the point at which the pump starts. The cut-out pressure is the higher number, where the pump stops.

For example:

If your pressure switch is set to 30/50 PSI, the tank pressure should be 27-28 PSI.
If your pressure switch is set to 40/60 PSI, the tank pressure should be 38 PSI.

Common pressure settings for household applications include 20/40, 30/50, and 40/60 PSI. The difference between the cut-on and cut-out pressure is typically 20 PSI.

Common signs that a septic tank is full include plumbing issues, odors, and changes in your yard. You may notice wastewater or sewage backing up into your home's drains, or that sinks, tubs, and toilets are draining slowly. Gurgling or bubbling sounds from the pipes are also a key indicator. Outside, you might smell foul sewage odors around your house or the septic tank area. Look for pooling water, spongy soil, or a marshy environment around the drain field. Another tell-tale sign is a patch of grass over the septic system that is suddenly lusher and greener than the rest of your lawn. If you notice any of these signs, you should contact a septic professional for an inspection and pumping.

Most shallow residential wells are somewhere between 25 and 50 feet deep. They are among the simplest well systems. Deeper wells usually involve drilling to a much greater depth. Water wells for household use are typically 100 to 500 feet deep, depending on local groundwater conditions. Some may be up to 1,000 feet deep or more.

Depending on local conditions, a deep well may be a better choice than a shallow well. Deeper well depth accesses groundwater that has been naturally filtered through many layers of soil and rock. This reduces surface contaminants and may offer cleaner water, but deep wells cost more money to build and maintain. The water may be harder and have higher radioactivity, too.

The Mendon, MI homeowners’ guide to septic tank services

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

See all articles

Melissa Graham
•
Aug 3, 2026Aug 3, 2026
How Much Does It Cost to Locate a Septic Tank? [2026 Data]
If it’s been there for a while, it can be hard to find the septic tank in your yard. Learn how much it costs to locate a septic tank with this guide.
D.P. Taylor
•
Jul 15, 2026Jul 15, 2026
Crank Up Your Understanding of Septic Tank Volume
It’s crucial to install a septic tank with the right volume to avoid wastewater backups. This guide will help you calculate the right septic tank volume.
Jamie Cattanach
•
Jul 10, 2026Jul 10, 2026
What’s the Right Septic Tank Size for Me?
Septic tank sizes vary depending on the size of your home, how many people live there, how much water you use, and more. Read on to learn how to determine the right size for you.
Taylor Freitas
•
Jul 9, 2026Jul 9, 2026
Are Septic Tanks Bad? Pros and Cons to Consider Before Moving Into a House With a Septic System
If you’ve never lived in a house with a septic system before, you might be wondering: Are septic tanks bad? Here are some of the pros and cons.
Taylor Freitas
•
Jul 9, 2026Jul 9, 2026
How to Build a Small Septic Tank for a Rural Property
Want to learn how to build a septic tank for your rural or off-grid property? First, check your local laws, then dive into these general guidelines.
Jamie Cattanach
•
Jul 8, 2026Jul 8, 2026
How Deep Is a Septic Tank and Why Is It Buried in the First Place?
How deep is a septic tank, and why is it buried? Learn where to place your own septic system as well as how to maintain it and how much it costs.