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Find Septic system installers and replacers in Denver

Avatar for Afford-A-Rooter
Afford-A-Rooter
4.7(
119
)

Serving Denver, CO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"The company showed up when they said they would and completed the job within the time frame that they stated. Communication was a little rough with the field, but communication with the office was very responsive. Considering the extent of the work and the constraints within which they had to work, there was remarkably little collateral damage done. Unfortunately I was not able to witness the work before it was covered up and so I cannot comment on the quality of the installation, but can say that the company did a good job protecting the surrounding landscaped areas and seemed contentious and thoughtful in their approach to the work. I would definitely work with them again."
Additional Photos
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+7

Response time3 days
Recommended by89%of homeowners
Avatar for Canyon Dirt Works, LLC
Canyon Dirt Works, LLC
5.0(
24
)

Serving Denver, CO and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"They knew what they were doing and kept me informed through the whole process. My project turned out great and I would recommend them to anyone who could use their services."
After
After
After Front
Back
Entry portion road

+32

Response time10 hrs
Response rate85%
1 neighbors recently requested a quote
Avatar for All Sewer and Plumbing Services
All Sewer and Plumbing Services
4.8(
12
)

Serving Denver, CO and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"This company beat the competition on pricing by a mile. I was shocked at the price difference! I have come to realize that plumbing companies can be incredibly deceitful and if they realize you don't know anything about plumbing (sewer lines in my case); they will overcharge you and promise to fix it "first thing in the morning", so you don't have time to get estimates from others! Very shady! Thank goodness I found Sewer Solution, thanks so much for saving us thousands."
Response time2 hrs
Response rate89%
10 neighbors recently requested a quote
Avatar for A to Z Remodel & Repair LLC
A to Z Remodel & Repair LLC
5.0(
23
)

Serving Denver, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Matt and Alexander responded really quickly to my request and were able to complete the work in my bathroom the following week. They replaced faucets and light fixtures and also installed a niche in my shower. I’m super pleased with the quality of work and will use them again for future house projects. "
Arvada Remodel
Arvada Remodel
Arvada Remodel
Arvada Remodel
Arvada Remodel

+11

Response time1 day
Response rate88%
2 neighbors recently requested a quote
Avatar for Doone Brothers Sewer and Septic Services, LLC
Doone Brothers Sewer and Septic Services, LLC
5.0(
7
)

Serving Denver, CO and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"I highly recommend Seamus, Kellen, and their team at Doone Brothers. They did my septic as well as my full site excavation/grading/driveway project. My site is very steep and challenging. I found them to be hardworking and fair. They went above and beyond with their communication and effort on my project and Iâ m super grateful to them for the work they did."
Response time2 days
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Tatum Works Inc.
Tatum Works Inc.
5.0(
1
)

Serving Denver, CO and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

Tatum Works Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Sewer repair
4 neighbors recently requested a quote
All Trade Plumbing LLC
New to Angi

Serving Denver, CO and surrounding areas

Approved

With over a decade of experience and only Master Plumbers employed, All Trade Plumbing LLC. provides top notch services and consultations for every aspect of your homes plumbing. \nWether it's a drippy faucet or an entire remodel All Trade is here for YOU. \nThe more we can educate you on your homes systems (and the less you see us) the better! We strive to educate all of our customers to the best of our ability to complete understanding.

1 neighbors recently requested a quote
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FAQs for septic system installation and replacement projects in Denver, CO

The smallest standard septic system uses a 500-gallon tank, which costs between $875 and $1,150 installed. This size works well for single-occupant dwellings with minimal wastewater production. However, many local regulations specify minimum tank sizes, so check with your building department before committing to this compact option. Some jurisdictions require at least 750 gallons regardless of home size to ensure adequate waste processing capacity.

The installation timeline varies based on site conditions, permit processing, and contractor schedules. The process includes obtaining permits, conducting soil tests, excavation, tank placement, leach field construction, and final connections. Weather conditions, soil challenges, and inspection scheduling can all affect the overall timeline. It's wise to begin planning well in advance of when you need the system operational.

The most economical approach is to install a conventional anaerobic system with a plastic tank. To minimize costs while maintaining legality, obtain multiple quotes from licensed installers, consider scheduling during their slower seasons, and handle basic site preparation yourself. Never skip permits or required testing to save money—illegal installations can result in significant fines and mandatory removal, ultimately costing far more than doing it right initially.

Regular pumping helps prevent system failures and extends operational life. Most small systems require pumping every three to five years, though frequency depends on household size and usage patterns. Pumping services cost between $290 and $530, making this maintenance expense relatively minor compared to potential repair costs ranging from $500 to $2,600 for neglected systems. Establishing a regular maintenance schedule based on your installer's recommendations helps avoid costly emergency services.

The Denver, CO homeowners’ guide to septic system installations and replacements

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