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TRUSTED BY JOHNSTOWN, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon99
    Verified septic tank services reviews

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

Avatar for Crow Creek Septic Services LLC
Crow Creek Septic Services LLC
5.0(
13
)
Septic System - Install or ReplaceSeptic Tank - Clean or Pump OutSeptic System - Repair+3 more

Serving Johnstown, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Crow Creek did an amazing job pumping and cleaning my septic tank. They showed up on time and were very professional. They also were respectful of my property and cleaned up after the job was done. I will definitely hire them again. Thank you!!!"
Response time11 hrs
Response rate97%
5 neighbors recently requested a quote
Jake's Mini Excavation
4.4(
19
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Johnstown, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Customers say: Quick response

"Jake took down our old barn and removed two dead trees and relocated our water hydrant. He showed up a week before the job to give my husband advice on removing the electrical panel and get exact dimension for water hydrant. All went smooth in this 95 degree weather. Thanks Jake, you did a great job!"
Response time2 days
17 neighbors recently requested a quote
Recommended by70%of homeowners
Silverline Landscape & Excavation, LLC
4.6(
17
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Johnstown, CO and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"Great service. Only downside was a little extra cost for transport of recycled asphalt from Commerce city to northern Colorado. Virus shut down the local sources. Not Tanner's fault though and the the price was more than fair given the distance. Took 8 hours for three loads."
Response time2 days
26 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Colorado Paradise Builders, LLC
Colorado Paradise Builders, LLC
4.6(
10
)
Septic System - Install or Replace

Serving Johnstown, CO and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Terrific value

"We hired Francisco as our General Contractor for our 2k sq ft basement remodel. He & his team did outstanding work! Excellent communication throughout the project, and they met our expectations on time & on budget. They quality of work was very impressive, passing 3 inspections with flying colors. We would never hesitate to call on Francisco for future jobs."
Medina Residence
Medina Residence
Windsor custom home
Windsor custom home
Schmitz basement finish

+5

Response time1 day
Response rate87%
6 neighbors recently requested a quote
Elite Dirt & Demo, LLC
New to Angi
Septic System - RepairSeptic System - Install or Replace

Serving Johnstown, CO and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

We take great pride our 25 years of experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

2 neighbors recently requested a quote
Avatar for Tatum Works Inc.
Tatum Works Inc.
5.0(
1
)
Septic System - Install or Replace

Serving Johnstown, CO and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Tatum Works showed up the next day, gave me a good price to fix my water leak (much better than the other two contractors I contacted) They finished the work faster than expected and restored my yard to the original state. We are so very happy with the entire project with Dustin and his crew. We would highly recommend this company."
Sewer repair
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Septic Tanks FAQs, answered by experts

Yes, a septic tank can get full. If this happens, you might run into issues flushing your toilets or draining your sinks. You may also notice your pipes making gurgling noises or the smell of sewage floating around your house. Other signs of a backed-up septic tank include water pooling or fresh, healthy grass growing above your drain field.

Certain foods are easier on your septic tank than others. Septic-safe foods include yogurt, fruit, cooked veggies, and bread because these items all break down relatively easily and can pass through your system safely. Rotten tomatoes, specifically, are actually good for your septic tank because they can increase the amount of good bacteria in the system. 

An outdoor water valve typically has a round or oval handle that you can turn to control the water flow. It may be located in a protective box or pit near the property line, where the main water line connects to your house.

Yes, shower water goes into the septic tank. Shower water is a type of greywater, and in fact, all water used in a home with a septic system—including water from sinks, toilets, the dishwasher, and the washing machine—drains into the tank. When shower water enters the tank, debris like soap and hair travels with it. The solid debris sinks to the bottom to become sludge, while soap residue joins the scum layer at the top. The remaining water is treated in the tank before moving to the drain field for further treatment and dispersal. It is important to avoid putting oil or harsh chemicals down any drain, as they can cause clogs or disrupt the beneficial bacteria required for proper wastewater management in the septic system.

Most septic tanks can handle two to three loads of laundry per day, or a weekly total of between seven and 10 loads. Although septic systems do require homeowners to be somewhat careful with their plumbing systems—for instance, it’s not a good idea to flush a bunch of toilet paper all at once—they can still handle fairly heavy use.

The Johnstown, CO homeowners’ guide to septic tank services

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