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Find Septic system installers and replacers in Longmont

Avatar for Peak Plumbing & Drain Repair, LLC
Peak Plumbing & Drain Repair, LLC
4.8(
62
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"They conducted a thorough review of my aerobic septic system and spent an hour or so explaining what they found and my alternatives. They also pumped the settling and overflow tanks."
Before
Sewer Repair
Response time6 hrs
104 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Crow Creek Septic Services LLC
Crow Creek Septic Services LLC
5.0(
13
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"I recently used Crow Creek Septic Services LLC to clean and pump out my septic tank, and I could not be more impressed with the experience. Scheduling the appointment was simple, and the team was professional and courteous from the very first phone call. As a first-time septic tank owner, I had several questions regarding maintenance, service timing, and whether the tank was overdue or still within a normal service window. Jacob and Landon took the time to thoroughly explain everything. They provided valuable information on monitoring septic levels, how to personally inspect and maintain the system, and recommended service intervals based on the condition of the tank. They even provided me with a diagram explaining how the septic system functions, along with additional items to keep an eye on moving forward. While they were already at the property, they also took a quick look at the separate septic system for our mother-in-law suite. My mother-in-law decided to move forward with ser"
Response time11 hrs
Response rate94%
13 neighbors recently requested a quote
Avatar for Afford-A-Rooter
Afford-A-Rooter
4.4(
138
)

Serving Longmont, 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
Additional Photos
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Additional Photos

+7

Response time3 days
Recommended by89%of homeowners
Avatar for Brett Barton Plumbing
Brett Barton Plumbing
5.0(
16
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Brett installed a whole home water filtration system and now I have crystal clear crisp water! So thankful to hire him 10/10 would recommend"
Sewer install
Sewer install
Sewer install
Sewer install
Sewer install

+4

Response time4 hrs
Response rate100%
3 neighbors recently requested a quote
Jake's Mini Excavation
4.4(
18
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Customers say: Quick response

"They installed gutters on our horse barn. They were mindful of the horses' safety as we brainstormed ideas for the downspout that led into the horse paddock. Super easy to work with from the estimate to the install. Everyone I encountered was very kind and professional. Their pricing was also very competitive. Finally,"
Response time2 days
14 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for A to Z Remodel & Repair LLC
A to Z Remodel & Repair LLC
5.0(
27
)

Serving Longmont, 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%
Silverline Landscape & Excavation, LLC
4.6(
17
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"They were able to get the job done within expected timeline but did not pay attention to the details. They hurried the pipe that needed to be left at a slight incline to drain, under the gravel. They didn?t confirm a time or way of payment collection and just showed up at home, followed my husband in garage asking fir money which I was supposed to pay and I was in communication with the company. I communicated and paid them next day but again got a payment request via home advisor a few days later. I consider that an unpleasant experience"
Response time2 days
14 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Wrangler Excavation LLC
Wrangler Excavation LLC
5.0(
4
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n

Demo Red Barn
Demo Shop
Cheyenne Airport
Canopy Removal
4 neighbors recently requested a quote
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FAQs for septic system installation and replacement projects in Longmont, CO

Most septic system replacements require several days to complete, not including permitting and preparation time. The process begins with site assessment and testing, followed by excavation, component installation, and final inspection. Weather conditions, property accessibility, and inspection schedules can all affect your project timeline. Your contractor can provide a more specific estimate based on your property's unique characteristics.

Standard homeowners' insurance policies don't cover septic system replacement due to age or normal deterioration. Coverage may apply if damage results from specific covered events, but routine maintenance and eventual replacement are generally considered homeowner responsibilities. Review your policy details or speak with your insurance agent to understand your specific coverage limitations.

Look for multiple indicators such as slow-draining fixtures, unusual gurgling sounds in plumbing, sewage odors inside or outside your home, or wet spots in your yard. Unusually lush grass over the drain field area, frequent backups, or recurring repair needs might signal system failure. Addressing these warning signs promptly can prevent property damage and health hazards.

DIY septic installation is not recommended and may violate local regulations. Professional installation ensures compliance with health codes, proper design for your specific site conditions, and appropriate safety measures. The specialized equipment, technical knowledge, and permitting requirements make this a job best left to licensed professionals who can guarantee the system's safety and effectiveness.

With proper maintenance, including regular pumping, a drain field lasts 20 years. Various factors influence system longevity, including household size, water usage patterns, and soil conditions. Regular professional inspections can help determine when replacement becomes necessary. If your system requires increasingly frequent repairs, replacement might be more economical than continuing to address individual problems.

The Longmont, 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.