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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
9 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

You may notice a septic smell in your yard after it rains if groundwater is entering your septic tank and causing it to overflow. If you experience septic odors after rainfall, contact a licensed plumber. They can construct a drain to redirect rainwater away from your septic tank. 

If your leach field becomes clogged or saturated, it can cause several problems with your home's septic system. The clog can cause sewage to back up into your home, leading to unpleasant odors and mess. A backed-up septic system can be a health hazard, particularly if the sewage starts to leach into the ground surrounding the leach field.

There are several ways to fix a saturated drain field, including cleaning out your septic tank, adding enzymes and additives to your drain system, and installing a larger septic system.

Yes, a septic tank riser can replace a concrete septic tank lid. Risers are designed to replace various types of septic tank covers, including concrete, metal, and fiberglass, to provide easier access for pumping and repairs. While a plastic riser makes future access more convenient, the initial replacement can be difficult because concrete lids are very heavy, so it is a job best left to professionals. Once installed, you will need to be cautious around the riser during yard work, such as mowing, to avoid causing damage.

The best bacteria to add to a septic tank is anaerobic bacteria, which doesn't use oxygen to break down solid waste. Because there is less oxygen in a septic tank, anaerobic bacteria can decompose sludge in a sealed environment. On the other hand, aerobic bacteria need oxygen and are prevalent in the leach or drain field of a septic system.

Needing to pump the tank as soon as it “looks” full is a common myth about septic systems, as wastewater will eventually drain into the leach field. Instead, it’s better to determine how many solids have accumulated. A septic maintenance technician near you can test this to find out whether pumping is necessary.

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.