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

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.

Several warning signs can indicate current or future issues with your well pressure tank. If you notice inconsistent water pressure, water spitting from your faucets, clicking sounds, or electricity bill spikes without other obvious causes, it may be time to get your pressure tank and well system looked at by a professional.

There are a few signs that you might notice if your drain field is bad. For starters, if you see standing water or soggy grass above your drain field, it could mean that it isn’t working correctly. Or, if your yard smells like sewage, it could also indicate that there’s a problem with your drain field. Repairing a drain field costs an average of $2,000 to $15,000.

You should never park or drive on top of a septic field. Vehicles can weigh upwards of two tons, and this weight can put a lot of pressure on the leach lines in the drain field. Too much pressure on your leach lines may cause them to warp, crack, or completely burst. This is an expensive and very avoidable problem.

When considering the price of drilling a well, factor in how much you’ll save in water costs per year. The average family of four uses 100 gallons of water per person per day in the U.S. With a private water well, you can save hundreds each year.

Wells are also environmentally friendly. You don’t need to worry about drinking water treated with chemicals. Talk to at least three well pump contractors in your area. They’ll be able to tell you more about your options, give you different quotes, and discuss the biggest concerns.

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