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TRUSTED BY HOWELL, MI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon182
    Verified septic tank services reviews

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

Avatar for Alliance Ground Services, LLC
Alliance Ground Services, LLC
5.0(
8
)
Septic System - Install or Replace

Serving Howell, MI and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"The project turned out wonderfully! Our front garden walk and fountain area were transformed; they were very knowledgeable and easy to work with. They were able to level the area in order to divert pudding water away from the house. The end result was beautiful! We have since moved almost an hour away and have called on them once again to give us insight as to how to transform the garden areas and walkways at our new home."
Retaining Wall & Patio
Retaining Wall & Patio
Hydroseeding
Hydroseeding
Hydroseeding

+2

Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Hamilton Outdoor Services
2.8(
2
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Howell, MI and surrounding areas

Approved

In business since 1988

Free estimates

Customers say: Quick response

"He did a great job and they did what I wanted them to do. I was not there when the job was completed. There were a few changes that needed to be made, I called them, they came right out and took care of it. I was very happy with the work that was done."
Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Knights Grading & Excavating, Inc.
New to Angi
Septic System - Install or Replace

Serving Howell, MI and surrounding areas

Approved

In business since 1986

Free estimates

Knights Grading & Excavating is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

Response time1 day
Mr fixture
New to Angi
Septic System - Install or ReplaceSeptic System - Repair

Serving Howell, MI and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hello and thank you for viewing my services, I hope to fix any issue you have and build a relationship off of trust and fine work, if you were wondering what services I offer it’s easier for me to tell you what I don’t, no shingles and no tile, but I do offer grout replacement. It’s a great day when problems go away and projects are finished.

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Septic Tanks FAQs, answered by experts

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.

How deep your septic system needs to be into the ground depends on several factors. In extremely cold environments, the tank needs to rest below the maximum frost line, which can be up to six or eight feet deep. The standard burying depth for most systems is between a few inches and four feet below ground level. Depth can also depend on the slope of the landscaping and other property variables. 

It only takes a few days for a septic tank to fill with water after a pro has pumped it. This is completely normal, and the water is a vital part of your septic system’s wastewater treatment process. The water that fills your tank days after pumping is not the same as the tank being filled with waste. You shouldn’t have to pump your septic system more than once every three to five years unless you have a tank that’s too small for your home’s water output or there’s a problem with your leach field. 

A septic alarm can sound different depending on your system, but often, it’s a loud, repetitive beeping noise or a steady, high-pitched noise. It may also be a loud buzzing noise. To confirm the noise is your septic alarm, check your alarm box for a red light. You can also silence your alarm with a red button or switch on the box. Look for something that says “Test” or “Mute.”

Most septic tanks need to be emptied every 3 to 5 years, but it’s a good idea to monitor the fill levels of your septic tank all the time. You can do this by installing a pressure level sensor to detect the internal tank pressure, or by having a septic tank company perform an annual inspection to let you know when you’ll need to pump the tank.

The Howell, MI homeowners’ guide to septic tank services

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