Your Go-To Sewer, Septic Tank And Excavation Contractor In Boulder, Co

Mountain Contracting LLC is Boulder’s best sewer, excavation and septic service provider. We’re your go-to contractor for sewer line systems and septic system services, from installations, repairs and maintenance. Our clients know that they can rely on us for our skills and experience. We have a wealth of knowledge regarding all types of septic systems, no matter how complex or simple they might be. Plus, we’re always willing to adapt our services according to your budget and needs.

Our Promise: Moving Mountains

Our company’s name says it all. Not only will we do everything in our power to ensure that your sewer or septic system is running smoothly, but we also have plenty of experience working with difficult and mountainous terrain.

We understand that your property is important to you, which is why we take extra care when excavating. We want to leave your land undamaged and as lovely as it was before we arrived.

Why Work with Mountain Contracting LLC

Unparalleled Experience

Boulder sewer and septic systems require local expertise, and that’s exactly what our team offers. With years of experience in the industry, we know how to handle even the most challenging septic repairs and installations.

Commitment to Quality

We’re committed to providing our clients with the best possible service. We know that a properly functioning sewer or septic tank system is critical, and we’ll treat it with the care and attention it deserves.

Superior Customer Service

We’ve built a loyal customer base by always putting our clients first. Many of them have been with us since the beginning, and we’re always happy to welcome new clients into the Mountain Contracting LLC family.

Our Services

We offer septic installation, replacement and repair. Sewer line installation, replacement and repair. Water line installation, replacement and repair. We also offer general excavating services including general land clearing, site clearings and excavating in extremely tight areas that require specialized equipment and a high degree of competence.

How We Work

At Mountain Contracting LLC, we understand that every sewer line project and septic system is different. That’s why we take a personalized approach to every project we undertake.

We offer sewer and septic services that are custom-made for your system, and we’ll consult with you to determine the best course of action. All within your budget!

Assessment and No Obligation Quote

The first step is to assess your needs and determine the best course of action. We’ll also provide you with a no-obligation quote so that you can make an informed decision about whether or not to move forward with our services.

Contract and Permitting

If you decide to move forward with our services, we’ll draw up a contract and apply for any necessary permits. We understand that the permitting process can be confusing, but we’ll take care of everything for you. The local health department must approve all septic system projects, and we’ll make sure that everything is up to code.

Work Begins

After we’ve procured the required permits, our team will rapidly get to work on your septic system. We understand that you’re anxious to have the project completed, and rest assured that we’ll finish it correctly and expediently.

Final Walkthrough

Once the work is completed, we’ll do a final walkthrough with you to make sure that you’re happy with the results. We want you to be completely satisfied with our work, and we’ll make any necessary adjustments before we consider the job done. We know how costly repairs can be, so we make sure to make it right the first time.

Google Reviews

Delon Saks
Delon Saks
Did a great job replacing the septic tank, would definitely use again.
Danielle Lynch
Danielle Lynch
Matt and his crew helped me on my sewer repair. They were quick and communicated very well. Highly recommend!
Kiran Herbert
Kiran Herbert
Working with Matt was great. He helped me see how was I was getting conned by another contractor (bogus plans and engineering, not licenses to work in county) and ended up doing a great job with a huge septic installation (two concrete tanks, two huge leech fields). The county and snow threw off our timeline but the team was professional and attentive throughout. We never even lost the use of our old septic! Very happy to have it over and done well.
Shannon B
Shannon B
Matt was a pleasure to work with. He's professional, hard working, a good communicator, performed the work ahead of schedule, and on budget. He was very transparent about issues, taking the time to discuss it with us until we felt comfortable we understood. When there were hiccups, he was quick to let us know and presented a solution. He was also an incredibly nice and honest person. We were purchasing our first home and new to the area. He offered advice on some repairs, including what we could tackle solo, and recommendations for contractors for bigger projects. He even told us about local live music places to check out, and texted the contracting company who build our bridge to find out the weight limit for us. He went above and beyond. We would emphatically work with him again.
Casey Gale
Casey Gale
Very good experience working with Matt.
Andrew Gordon
Andrew Gordon
Thank you Matt at Mountain Septic! Matt responded to my request quickly, and was super knowledgeable - recognizing the scope of work and talking me through the project when he arrived on site. Our demo, septic and foundation work all went super smoothly, and we are really happy with the quality of the work.
Joseph Ryan
Joseph Ryan
The guys at mountian contracting went above and beyond to get our job done. They provided a quality experience that I would highly recommend.
Gail Bishop
Gail Bishop
Matt arrived at my house within 30 min of my reaching out. When he measured my yard it was clear we had some problems. Matt worked with the county and got everything approved. Mtn Contracting was very efficient and professional in all my dealings with them. Even after the job was complete, if I had a question all I had to do was call. I recommend Mountain Contracting to everyone and would use them again myself if the need arose.
Melissa Dunning
Melissa Dunning
I have used Mountain Contracting for three different projects and have been delighted each time. Their ability to envision the best solution is extraordinary. Their execution of the project is efficient and quick. They are a pleasure to work with, throughout the process. They stay on budget and on schedule. I can't recommend them highly enough!

Call Mountain Contracting for Your Septic, Sewer, Water Line and Excavating Needs

As a full-service septic, sewer and excavation contractor, we’re here to ensure your home or business can handle the demands of the job. With our help, your property will be ready whenever nature calls. And in the event that an emergency does arise, we’ll be there to get things up and running again as soon as possible. To schedule an appointment, reach out on Contact Page or call 303-888-3580.

Frequently Asked Questions (FAQs)

A full septic installation usually takes a couple weeks. A repair can be completed within a few days.
There are many elements that affect how often you need to pump your septic system, such as the size of your tank and the number of people in your household. That being said, septic tank pumping is generally recommended by experts every three to five years.
If you think your septic system is failing, it’s important to call a professional as soon as possible. Mountain Contracting LLC offers 24/7 emergency services, so we can be there when you need us most.
There are a few signs that may indicate a septic system failure, including sewage backup, slow drains, and foul odors. If you notice any of these signs, please call us right away. If you notice any of these signs, please call us right away. You may need urgent septic system repairs or replacement.
We do not recommend that you attempt to install a septic system on your own. Septic systems require a significant amount of planning and expertise to install correctly. You may also need to obtain a permit before beginning work. Work with us for a hassle-free experience!