Plastic septic tanks — Westminster, CO
Last updated: September 24, 2026
What affects the price
The final bill for septic service depends on a few specific factors. The total volume of your tank, how long it has been since the last pumping, and whether the technician needs to dig to find your lids will all change the bottom line. If the system is particularly difficult to access or requires repairs to internal components like baffles or filters, the labor time increases. We provide exact pricing confirmed free on the call.
About this service
These tanks are manufactured from high-density polyethylene or fiberglass. They are a popular choice because they are lightweight and resistant to the corrosive gases found in waste systems. You might choose a plastic tank if you are looking for an installation that is easier to transport and less prone to cracking from ground movement compared to older concrete models. They work well in many soil conditions, but professional installation is necessary to ensure they are anchored correctly to prevent floating.
Summer is a peak time for household water usage, especially with guests visiting. Extra laundry, frequent showers, and outdoor water use can stress an older system. If you have a busy house this season, keeping an eye on your drain speeds helps ensure everything keeps flowing smoothly throughout the warm months.
Frequently asked in Westminster
What are the differences between concrete and plastic septic tanks?
In Westminster, concrete septic tanks are known for their durability and resistance to buoyancy. However, they can be susceptible to cracking and leaking over time due to chemical reactions. Plastic septic tanks, often made of high-density polyethylene (HDPE), are lighter and less prone to corrosion. They are also generally easier to install. The best choice for your property depends on local soil conditions and your specific needs. Discussing options with a local pro is always recommended.
How often should a septic tank be pumped in Westminster?
Septic tank pumping frequency in Westminster depends on usage and tank size. For a typical household, pumping every 3-5 years is a good rule of thumb. If you have a larger family or host guests frequently, you might need it done more often. Signs like slow drains or sewage odors indicate it's time for a pump-out. Ignoring these signs can lead to costly repairs. Call us for advice tailored to your Westminster home.
What's the approximate cost to install a new septic tank in the Westminster area?
What are the best septic tank treatments for Westminster homes?
The most effective septic tank treatment for Westminster homes is regular pumping. While various biological additives are marketed, their effectiveness is debated and they can't replace physical pumping. These treatments can sometimes disrupt the natural balance within the tank. Focusing on proper waste disposal and scheduled maintenance is far more beneficial. Avoid flushing harsh chemicals, grease, or non-biodegradable items. We can advise on best practices for your Westminster system.
What are the signs that my septic tank in Westminster is full?
Signs that your septic tank in Westminster is full include slow-draining sinks and toilets, gurgling sounds from your pipes, and sewage odors around your drain field or home. You might also notice unusually lush or soggy patches in your yard. These are clear indicators that your tank needs attention. Don't delay in addressing these symptoms. Prompt service can prevent more serious damage. Call us to schedule an inspection.
Can I pump out my septic tank myself in Westminster?
What is the purpose of a septic tank for a Westminster property?
The purpose of a septic tank for a Westminster property is to safely treat and dispose of household wastewater. It separates solids from liquids, allowing solids to decompose and liquids to flow to a drain field for further filtration into the soil. This process prevents raw sewage from contaminating groundwater and surrounding areas. It's a vital component of off-site sewage treatment. Proper function is crucial for health and environment.
Also serving nearby: Arvada · Thornton · Denver · Lakewood · Boulder
More on this: EPA SepticSmart — maintenance schedules.
Service area details
Serving all of Westminster — population 114,875; about 3,633 residents per square mile across 31.6 sq mi. ZIP codes covered include 80030, 80031, 80035, 80036.
Neighborhoods served in Westminster: Sheraton, Westlake, Countryside, Pine Ridge, Villas at Standley Lake — and every surrounding area.
Areas we serve
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