Plastic septic tanks — Boulder, CO
Last updated: September 24, 2026
What affects the price
The final bill for septic work depends on a few practical details. First, the size of your tank and how long it has been since the last pump-out matter; older or neglected systems often require more labor to clear. Accessibility also plays a role, as tanks buried deep or under landscaping take longer to reach. If you have an emergency blockage or require repairs to baffles or risers, those add to the total. Exact pricing confirmed free on the call.
About this service
Plastic or polyethylene septic tanks are a modern alternative to traditional concrete models. They are lightweight, which makes installation easier, and they are naturally resistant to the corrosion that can sometimes affect older materials. You might choose these if your soil conditions are tricky or if you are looking for a durable, watertight option for a new construction project. Their long-term performance depends on proper installation and avoiding heavy equipment driving over the area where the tank is buried.
Summer often means more houseguests and increased water usage, which puts a heavier load on your septic system. With more laundry and showers, solids can accumulate faster than usual. Keep an eye on your lawn for soggy patches or unusually lush grass, which can be signs of a stressed system. A quick mid-season check helps ensure everything flows smoothly.
Frequently asked in Boulder
What does a septic truck do?
What is the cost of septic tank and installation?
What are the best septic tank treatment options?
What is the cost to install a septic tank?
What septic tank pumping companies are available in Boulder?
What kind of repairs might a septic pump need?
A septic pump might need repairs due to electrical issues, motor failure, or blockages. It's vital to have a functioning pump for your system. If you suspect a problem, call us for a free diagnosis and quote. We'll get a specialist to you.
How often should my septic system be pumped?
Also serving nearby: Longmont · Westminster · Arvada · Thornton · Lakewood
More on this: EPA SepticSmart — maintenance schedules.
Service area details
Serving all of Boulder — population 105,898; about 3,937 residents per square mile across 26.9 sq mi. ZIP codes covered include 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308.
Neighborhoods served in Boulder: Downtown Boulder, Newlands, Gunbarrel, Table Mesa, Crestview — and every surrounding area.
Areas we serve
Browse by state, then city.