Top-rated septic tank pros.

Get matched with top septic tank pros in Keystone, SD

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Keystone, SD?

Select your specific project to find the pro for you.

Verified Reviews for Septic Tank Service pros in Keystone, SD

*The Angi rating for Septic Tank Service companies in Keystone, SD 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 Keystone, SD 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 March 06, 2026

Find Septic tank pros in Keystone

Avatar for A&G Services
A&G Services
5.0(
3
)

Serving Keystone, SD and surrounding areas

In business since 2022

Free estimates

Emergency services offered

A & G Services can offer a multitude of services. We can do general excavation, land clearing, dig basements, resurface driveways, install/fix septic systems, water leak repair, and even snow removal!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+49

Recommended by100%of homeowners
Request Quote
Avatar for ERE,LLC
ERE,LLC
4.6(
8
)

Serving Keystone, SD and surrounding areas

In business since 2019

Free estimates

Credit card accepted

We are dedicated to providing our clients with the very best in excavation and building site services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.\n

Retaining Walls
Retaining Walls
Retaining Walls
Retaining Walls
Retaining Walls

+64

Response time6 hrs
Response rate100%
2 neighbors recently requested a quote
Request Quote
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Keystone, SD 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Request Quote
J & R Construction
New to Angi

Serving Keystone, SD and surrounding areas

In business since 2019

Free estimates

Offers commercial services

We are dedicated to providing our clients with the very best in excavation and septic tank services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.Always stays on the job does great quality work, creates a relationship with clients.

Response time4 days
Request Quote
5th Generation Plumbing
New to Angi

Serving Keystone, SD and surrounding areas

In business since 1997

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

Request Quote
Septic Tanks questions, answered by experts

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.

You can check your own septic tank, but take precautions. Locate the access lid, usually buried a few inches underground, and remove it carefully. Look for the sludge and scum levels, and if they’re high, that means pumping may be necessary. Check for odors, slow drains, or pooling water around the drain field, which could indicate issues. Never enter the tank, as toxic gases can be fatal. All of that being said, a professional inspection is safer and more thorough.

There are a couple of ways you can determine the depth of your well. One method is to use a device called a well sounder. This tool has a long measuring tape containing a sensor to alert you once the end reaches the water. 

Or you can DIY it by using a long tape measure with a half-filled bottle of water attached to it. Lower the tape measure into your well. Once you feel tension on the tape, you’ll know the bottle has reached your static water level. This will give you an approximate idea of your well’s depth.

Many variables, such as home size, type of engineered system, the material used, soil conditions, and water usage, dictate how long your system will last. On average, most homeowners find that their system lasts 15 to 20 years, though it’s not unheard of for them to last up to 40 years with annual and preventative septic maintenance.

There are a lot of issues that can cause a septic tank to collapse. Those include failing to regularly pump or service it every three to five years, placing too much weight atop the system—by parking your car on top of it or because of a heavy snow buildup for instance—or because of structural damage done by overgrown tree roots.

The Keystone, SD 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