The most affordable, highest quality septic system installation in the Pagosa Springs to Durango area.

Immediate savings on materials and equipment.

As a family owned business, our goal is to provide the highest quality septic and onsite wastewater treatment systems (owts) at the lowest possible price. We have fantastic relationships with parts, materials, and design suppliers, allowing us to pass immediate savings on to you.

Regardless of whether you require a standard tank and leach field or a complex custom dosing solution, we design and build septic systems that meet every need.

Currently serving Pagosa Springs, Chromo, Arboles, Bayfield, Ignacio and Durango areas.

Don't pay more for less, when you could pay less for the Best.



Engineered Designs

Custom designs specific to your needs. Our techniques and equipment ensure your septic lasts a life time.

Residental Installation

Our licensed installers are the best in the business. We always aim to be on time, curteous and respectful.

Commercial Installation

Your business is as important to us as our own. Get the service you deserve from the best in the industry.

How Septic Systems Work

Septic systems are underground wastewater treatment structures that use a combination of nature and technology to treat wastewater. A typical septic system consists of a septic tank and a drainfield, or soil absorption field. The septic tank digests organic matter and separates floatable matter (e.g., oils and grease) and solids from the wastewater. Soil-based systems discharge the liquid (known as effluent) from the septic tank into a series of perforated pipes buried in a leach field, chambers, or other special units designed to slowly release the effluent into the soil.

A typical septic system works like this:

  1. 1. All water runs out of your house from one main drainage pipe into a septic tank.
  2. 2. The septic tank holds the wastewater long enough to allow solids to settle down to the bottom forming sludge, while the oil and grease floats to the top as scum. Compartments and a T-shaped outlet prevent the sludge and scum from leaving the tank and traveling into the drainfield area.
  3. 3. The liquid wastewater (effluent) then exits the tank into the drainfield.
  4. 4. Pretreated wastewater is discharged through piping onto porous surfaces that allow wastewater to filter though soil. The soil accepts, treats, and disperses wastewater as it percolates through, ultimately discharging to groundwater.


Septic System Types

We build septic systems custom tailored to fit your particular location and soil profile.

Pipe and Gravel Systems

Consisting of a septic tank and a gravel packed trench or bed drainfield, a conventional septic system is typically installed at a single-family home or small business. The gravel/stone drainfield systems have been in use for decades, but are relatively large in overall footprint and may not be suitable for all residential sites or conditions. Effluent filters through the stone and is then further treated by microbes once it reaches the soil below the gravel/stone trench.

A septic system design connected to a house, with a septic tank, distribution box, and conventional leach field lines filled with gravel and perforated piping.


Chamber Septic Systems

The gold standard for conventional gravity-fed septic systems for over 30 years. These systems consist of a set of connected chambers. Pipes carry waste from the septic tank to the chambers, and inside the chambers microbes on or near the soil treat the effluent. The area around and above the chambers is filled with soil.

A septic system design connected to a house, with a septic tank, distribution box, and conventional leach field infiltration chambers.


Drip Distribution Systems

Some engineers require effluent to be slowly dosed to the field at regular intervals. The main advantage of the drip distribution system is that no large mound of soil is needed as the drip laterals are inserted into the top 6 to 12 inches of soil. The disadvantage of the drip distribution system is that it requires a large dose tank after the septic tank to accommodate the timed dose delivery of wastewater to the drip absorption area. Additional components, such as electrical power, are necessary for this system, requiring an added expense and increased maintenance.

A septic system design connected to a house, with a septic tank, a pump tank, a supply line, a return line, an air relief vale and drip tubing in the drainfield.


Mound Septic Systems

Mound systems may be the right option in areas with shallow soil, high groundwater, or shallow bedrock. A sand mound contains a drainfield trench. Effluent from the septic tank flows to a pump chamber where it is dosed to the mound. Treatment of the effluent occurs as it discharges to the trench and filters through the sand, and then disperses into the native soil. Mound systems require a substantial amount of space and periodic maintenance.

A septic system design connected to a house, with a septic tank, a pump tank, perforated piping, and a built up dirt mound that acts as the drainfield.


Aerobic Septic Systems

An aerobic system forces oxygen into the treatment tank. Additional oxygen increases bacterial activity in the system, providing additional treatment for nutrients in the effluent. Some aerobic systems require a pretreatment tank and a final treatment tank. The benefits of this system are they can be used on smaller lots, in inadequate soil conditions, in areas where the water table is too high, or for homes close to surface water. Regular life-time maintenance should be expected.

A septic tank diagram with a multi-chamber tank for treatment, an air pump, effluent screens, and a scum separating baffle.


Recirculating Sand Systems

Sand filter systems can be built above or below ground. Effluent flows from the septic tank to a pump chamber. It is then pumped under low pressure through pipes at the top of the filter. The effluent leaves the pipes and is treated as it filters through the sand, discharging to the drainfield. Sand filters provide a high level of treatment and are good for sites with high water tables or that are close to water bodies, but they are more expensive than a conventional septic system.

A septic system design connected to a house, with a septic tank, a pump tank, a sand warehouse, a stone infiltration bed, and a dispersal line.


Cluster Systems

A decentralized treatment system that collects wastewater from two or more buildings and conveys it to a treatment and dispersal system located on a suitable site nearby. It is common to find cluster systems in rural subdivisions.

A septic system design for multiple buildings, each with their own septic tank, which all feed into a central distribution box that drains into a shared draindield.

What does it cost to install a new septic tank and leach field?

Septic system cost estimates are calculated by adding plans + parts + materials + labor.

We do not make any money on parts. We give you a copy of our wholesale receipt, and you get to start saving immediately. That being said, the equipment necessary to build a standard 2 bed system, with a tank, leveled distribution system, and chamber infiltrators normally costs around $8000.

We similarly do not make any money on necessary fill material. You only pay what we pay. Code compliant backfill materials for the system described above, trucked in from local gravel pits, normally cost around $3000.

Labor, which includes excavation, assembly, leveling, inspection, backfill, and grading for water diversion, normally costs around $8000.

If you require engineered designs for code compliance due to soil type or limiting barriers, an engineered plan for the system described above normally costs around $1300.

What makes us different

Our name is BEST for a reason!

You Save Money

We do not charge extra for parts or materials. We'll show you our receipts and you'll only pay what we pay. Save today!

Custom Layouts

We can tailor a septic solution for every property, even if you've been told in the past that it wasn't possible.

Fast Installation

We normally complete all installations within two weeks of contract agreement. Get the septic you need now, done now.

Code Compliant

Let us deal with the headache of code compliance and inspections. Never settle for less than the best.

Hire the right people, do the job right.

We try to offer the most affordable septic systems and installation around.

Whether you need septic installed for new construction in Durango or an RV pad in Pagosa Springs, we deliver the Best Septic in the biz.

Why spend more than you need to? Get immediate savings on equipment and materials.

Get My Quote

Contact us

970-823-2378