If you own a rural or mountain home along the Front Range, chances are your wastewater doesn't go to a city sewer line โ€” it goes to a private septic system buried in your yard. And if that system is failing, or you're building new, the first question is almost always the same: what is a new septic system going to cost me? The honest answer is that it depends on your soil, your site, your county's permit requirements, and the type of system your ground can actually support. Anyone who quotes you a flat number over the phone without seeing your property is guessing.

At Paramount Plumbing, we do something most companies out here can't: we handle the well, the septic, AND the home's plumbing under one licensed master plumber. Most plumbers won't touch septic or wells, and most drillers won't touch your interior plumbing โ€” so homeowners end up juggling three contractors who each blame the other. We install and service complete Colorado OWTS (onsite wastewater treatment systems) for both new construction and replacements, we price the job upfront before any work starts, and we're available 24/7 when things go wrong. This page walks you through what a new septic system really costs in Colorado and exactly what drives that number.

What a New Septic System Actually Costs on the Front Range

Here's an honest premium ballpark for the Colorado Front Range: a straightforward conventional gravity septic system โ€” new tank, distribution box, and a standard leach field in good soil โ€” typically runs in the range of $15,000 to $30,000 installed and permitted. If your soil percolates poorly, your lot is tight or steep, or the county requires an engineered design, you're realistically looking at $30,000 to $55,000+ once you factor in an advanced treatment unit, a pressurized drainfield, or a mound system. Full-replacement jobs on an existing home can also add cost for excavation access, old-tank abandonment, and re-landscaping.

We're not the cheapest option out here, and we won't pretend to be. What you get instead is a system engineered and installed to pass county inspection the first time, sized correctly for your household so it lasts decades, and a single licensed master plumber accountable for tying it into the rest of your home. The exact price is always confirmed on-site after we see your soil report, your setbacks, and your terrain โ€” but we give you a firm, approved number before we ever break ground. Call 719-888-3255 for an upfront quote on your property.

Why Colorado Septic Costs More Than the National 'Average'

Those low national averages you see online โ€” the $3,000 to $10,000 numbers โ€” mostly reflect flat lots in warm states with deep, sandy, fast-draining soil. The Front Range is a different world. Our decomposed granite, clay pockets, high water tables in some valleys, and rocky mountain ground often fail a standard perc test, which pushes you toward an engineered or advanced treatment system that simply costs more to design and install. Excavation through rock, steep driveways that limit equipment access, and short frost-free build seasons all add real cost that a national calculator never accounts for.

On top of that, every new system in Colorado is governed by Regulation 43 and permitted through your county health department (El Paso County and the surrounding Front Range counties each have their own OWTS office). That means a required soil evaluation, a permit application, a licensed installer, and a final inspection before you can legally use the system. We handle that entire permit process for you so nothing stalls โ€” but it's part of why doing septic right in Colorado is a bigger job than a quick backyard dig. Have questions about your county's requirements? Call 719-888-3255 and we'll walk you through it.

Signs It's Time to Replace โ€” Not Just Repair โ€” Your Septic

Not every problem means a full new system, and part of our job is telling you honestly which situation you're in. But some symptoms point clearly toward replacement: sewage backing up into low drains or the lowest bathroom, soggy or unusually green patches over the drainfield, persistent sewage odor in the yard, slow drains throughout the whole house at once, or a system that's simply reached the end of a 25-to-40-year life. A drainfield that's saturated and no longer accepting effluent usually can't be repaired โ€” it has to be rebuilt.

In Colorado, winter makes these problems worse and more urgent. Frozen ground, a frost-heaved tank lid, or a line running too shallow near an unheated well house can turn a slow drain into a January emergency fast. Because we're a genuine 24/7 local company, you're not waiting until spring โ€” and because the same licensed plumber handles your septic, your well, and your interior lines, we can diagnose whether the real problem is the tank, the field, the well pump, or a frozen pipe inside the house. If you're seeing any of these signs, don't wait for a backup. Call 719-888-3255.

What to Expect When Paramount Installs Your System

A new install starts with a site visit and a soil evaluation to determine what your ground can support โ€” this is what turns a rough ballpark into a real, firm price. From there we handle the engineered design if one's required, pull the county OWTS permit, schedule the excavation, set the tank, build the drainfield to spec, and coordinate the final inspection so the system is legal and warrantied. Because Patrick is a licensed master plumber, we also make the connection between the septic and the rest of your home's plumbing seamless โ€” no handoff, no finger-pointing between trades.

You'll know the number before we start. We price the work upfront, get your approval, and then do it โ€” no surprise change orders halfway through a dug-up yard. That combination of one accountable licensed plumber, honest premium pricing, and full-service coverage of the well, septic, and home plumbing is exactly what the rural Front Range needs and rarely gets. When you're ready to talk about your project, call 719-888-3255 for an upfront quote.

Frequently asked

How much does a new septic system cost in Colorado?

On the Front Range, a conventional gravity system in good soil generally runs about $15,000 to $30,000 installed and permitted, while engineered, advanced-treatment, or mound systems for difficult sites can run $30,000 to $55,000 or more. Colorado's rocky ground, poor-draining soils, and county permit requirements push costs above national averages. We confirm your exact price on-site after seeing your soil and terrain, and you approve that firm number before any work begins. Call 719-888-3255 for a quote.

Why is Colorado septic more expensive than the averages I see online?

Those low national figures assume flat lots and deep, sandy soil. The Front Range often has clay, decomposed granite, or rock that fails a standard perc test, requiring a costlier engineered system. Add steep or hard-to-access lots, a short build season, and mandatory Regulation 43 permitting through your county health department, and the real cost is naturally higher. It's more system and more process โ€” done right so it lasts and passes inspection.

Do I need a county permit for a new septic system?

Yes. Every new or replacement onsite wastewater system in Colorado requires a permit under Reg 43, issued by your county OWTS office (such as El Paso County). That includes a soil evaluation, a licensed installer, and a final inspection before the system can legally be used. Paramount handles the entire permit process for you so the project doesn't stall. Call 719-888-3255 with questions about your county.

Can one company handle my well, septic, and home plumbing?

That's exactly what sets Paramount apart. Most plumbers won't touch wells or septic, and most drillers won't touch interior plumbing, so rural homeowners end up managing three contractors. With a licensed master plumber on staff, we cover the well, the septic, and the home's plumbing under one roof for both new construction and service or repair. We're local, licensed, insured, and available 24/7 at 719-888-3255.