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Septic Tank Installation

Worry-Free Septic Tank Installation in Bennett, Watkins, Aurora, Strasburg, And More Of CO


Scroll to discover prices and FAQs for your septic tank installation

Scheme of how a septic tank works

Septic Tanks For Any Type of Building

The installation of a septic tank is another facility that modern homeowners opt for. Not only it can minimize the burden on existing public sewer systems, but it also provides increased control over wastewater management and disposal.

In short, a septic tank system works by collecting wastewater from sinks, showers, and toilets and storing it in a large tank. The solid waste settles at the bottom of the tank while the liquid wastewater floats to the top. 

Bacteria then naturally break down the solid waste, creating an effluent that is released into a drain field. This drain field is composed of gravel-filled trenches which act as a filtration system before releasing clean water back into the soil.

A Solution With Many Benefits

When properly installed, septic tanks can provide a safe and reliable method for managing wastewater from households and buildings. 

In addition being a more eco-friendly solution than municipal septic systems, septic tanks come with lots of other benefits, including:

Large hole excavated for a double chamber septic tank

Our Excavation Portfolio

Septic Tank Installation FAQ

Yes, land clearing or grading may be needed before installing a septic tank, as well as performing a soil test. The test will tell us how fast your soil can drain and help identify the best septic tank system for that specific soil.

A septic tank installation in Colorado varies between $15K and 85K. The price varies based on the type and size of the tank and the materials used. For a two-bedroom house, a 750-gallon plastic tank would cost around $15K, while an average three-bedroom home will require a larger tank at over $26k. For large homes of at least four bedrooms, you’ll be looking to spend at least $35k. Important factors that impact the cost of a septic system is the soil quality and the engineering required to satisfy local Health Departments.

Some homeowners may want to cut costs by trying to do some of the work themselves. Colorado State Law requires all septic installers to be licensed by County level Health Departments. The compliance requirements for obtaining a permit and inspections requires these licenses. Additionally, under Colorado Law any transfer of property requires an inspection by a licensed professional. The reality is, doing it right from the beginning will save time, money and promote the health of our drinking water.

Septic systems come in more than ten types, the most common being gravity, conventional, or anaerobic systems. 

Other septic tank systems include chamber systems, drip or pressure distribution, recirculation sand filters, aerobic, and more. Septic tanks can also be made from different materials, such as concrete, plastic, or fiberglass.

Each has its own benefits and price points. Crush Excavation will happily assist you in choosing the best solution for your needs.

A Fast And Transparent Septic Tank Installation

Stay comfortable and at peace with the excavation done on your property. We take the time to listen to you and ensure you always understand where your project stands.



Communication eases everything and allows us to bring long-term solutions to your problem.



We get started when scheduled, do the work effectively, and stay within budget.



Enjoy all the facilities of your home without worrying about wastewater or an unreliable sewer system.

N Bushnell

N Bushnell


I recently had the pleasure of working with Crush Excavation for my septic tank replacement project, and I couldn’t be more satisfied with their services. From start to finish, their communication was exceptional. They kept me informed every step of the way, promptly answering all my questions and addressing any concerns. 

Their transparency and honesty were evident from day one, making the entire process stress-free and straightforward. Even after I delayed starting the project, Crush kept in contact with me and was never pushy about a start date.

Punctuality is another pillar of Crush Excavation. They showed up exactly when they said they would, every single time. This reliability extended to the project’s timeline as well. They completed the work on time, adhering to the agreed-upon schedule.

Staying on budget is always a concern with large projects, but Crush Excavation delivered on their promises. There were no hidden costs or gotcha charges, and they managed the project efficiently, ensuring we stayed within our financial limits.

Their professionalism, follow through, and excellent workmanship, has left a lasting impression on me. In the current landscape of shady, unreliable contactors Crush towers over the crowd. 

They exceeded my expectations in every way, and I highly recommend them to anyone in need of septic work or excavation services. They truly are a top-notch company.


Dorie Vickrey


I can’t say enough about the friendly, knowledgeable service, the craftmanship, and quality of the work done. I had new floors and baseboard installed in my bathrooms. They look great. Charles replaced the toilets and installed a new door in one bathroom. I’d hire this company again.

Your Property In Qualified Hands

Your Certified And Insured Excavation Contractor

Crush Excavation holds the most important excavation qualifications and is licensed in Arapahoe and Adams Counties, CO.

Certified NOWRA Installer

Licensed Septic Professional

A Company Trusted By Google

With Crush Excavation, You'll Enjoy:

I recognize the importance of communication and will ensure that you’re comfortable and informed with every step of your septic tank excavation and installation.

Use your utilities worry-free as I back my work up by a 1-year warranty. The warranty covers the installation, and you also benefit from the manufacturer warranty on the tank itself.  

Not only will I make sure that your septic tank is properly installed, but I’ll also take care of your home landscape by grading and smoothing any dirt that gets moved during the installation.

Enjoy Modern Facilities Worry-Free With A Septic Tank

A low-maintenance, environmentally-safe alternative to public wastewater systems.

(takes 1-2 min)