Top Septic Tank Installation & Replacement Contractors in Broomfield, Colorado Ranked

Installing or replacing a septic system is a significant home infrastructure project that requires careful planning and adherence to strict local regulations. For Broomfield homeowners, this process is governed by specific On-site Wastewater Treatment System (OWTS) rules designed to protect public health and the environment. This guide explains the key steps, requirements, and considerations for septic system work in Broomfield, helping you navigate the permitting, design, and installation process to find qualified local professionals for your project.

Black Diamond Pumping

14037 Co Rd 8, Fort Lupton, CO 80621

Black Diamond Pumping is a family-owned septic service company based in Fort Lupton, Colorado, serving Denver and the surrounding Northern Colorado areas including Adams, Weld, and Boulder counties. They provide a full range of septic system services such as pumping, inspections, repairs, and installations for both residential and commercial properties. With over 20 years of experience, the company is licensed and insured, equipped to handle septic tanks of all sizes, and emphasizes routine maintenance to ensure proper system function and safety.

4.9

79 Reviews

High Performance Earthworks

50 Wolf Tongue Ct, Nederland, CO 80466

High Performance Earthworks is a septic system repair and installation contractor based in Denver, CO. They provide excavation, foundation, drainage, and full site development services, focusing on septic systems and related infrastructure for residential and commercial properties. The company is experienced in handling complex projects including foundation work and site drainage, with a strong emphasis on meeting industry standards and customer needs. Since 2015, they have completed over 250 septic system installations and more than 120 foundation projects, serving clients across Colorado's Front Range. Their team is also involved in permitting and project planning to ensure smooth execution.

4.9

78 Reviews

Sewer Experts Denver Sewer Line Repair & Replacement, Drain Scope, Water Lines

6510 E 49th Ave Ste A, Commerce City, CO 80022

Sewer Experts Denver Sewer Line Repair & Replacement, Drain Scope, Water Lines is a locally owned and operated contractor based in Denver, CO, providing commercial and residential sewer and water line services. They offer a range of solutions including trenchless sewer repairs using CIPP lining and pipe bursting, sewer and drain cleaning, water line installation and repair, septic tank installation, and grease trap services. With over 20 years of experience, the company serves the Mile High area, suburbs, and the Front Range, and provides 24/7 emergency sewer services. Their certified technicians focus on transparent communication, quality workmanship, and minimizing disruption during projects.

4.8

160 Reviews

Simply Sewers - a Littleton Drain Cleaning Company

Denver, CO

Simply Sewers - a Littleton Drain Cleaning Company provides septic system repair and septic tank installation services in Denver, CO. They offer 24/7 emergency drain cleaning and sewer repair, including trenchless sewer and water line replacement, sewer camera inspections, and hydro jet drain cleaning. With over 10 years of experience serving the Denver Metro area, the company emphasizes honest estimates and thorough cleanup after service.

4.8

79 Reviews

Mountain Contracting LLC - Sewer & Septic

Denver, CO

Mountain Contracting LLC - Sewer & Septic is a full-service contractor based in Denver, CO, specializing in septic system installation, repair, and maintenance as well as sewer and water line services. They handle projects from initial assessment and permitting through to completion, ensuring all work meets local health department codes. Their expertise includes working in tight excavation areas with specialized equipment. The company also offers general land clearing and excavation services. Mountain Contracting LLC aims to complete projects efficiently and correctly, providing a final walkthrough to ensure customer satisfaction. They also respond to emergencies to restore septic and sewer functions promptly.

5.0

28 Reviews

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Understanding Broomfield's Septic System Regulations

Before any excavation begins, understanding the local regulatory landscape is crucial. The City and County of Broomfield enforces OWTS regulations that align with state guidelines from the Colorado Department of Public Health and Environment. A fundamental rule is that a permit is mandatory for installing, altering, repairing, or replacing any part of a septic system. The application process is designed to ensure the system is suitable for your specific property.

Key property requirements include:

• Minimum Lot Size: Regulations typically require a minimum lot size of 2.5 acres if a private well is used, or 1.0 acre if the property is served by public water.
• Setback Distances: Systems must be installed a specified distance from property lines, wells, water bodies, and buildings.
• Soil Suitability: The land must pass a professional evaluation to confirm the soil can properly treat wastewater.

Failure to obtain the proper permits can result in fines, legal liability, and the inability to obtain a certificate of occupancy or sell your property.

The Step-by-Step Process for System Installation

A successful septic system project follows a defined sequence from evaluation to final approval. Skipping steps can lead to costly delays or failures.

1. Site Evaluation and Soil Testing

The process starts with a detailed assessment of your property. A licensed designer or engineer will conduct a soil profile test, which involves digging deep pits to examine soil layers, texture, and depth to bedrock or water table. This is often followed by a percolation (perc) test, which measures how quickly water drains through the soil. The results of these tests directly determine the size and type of system your property can support.

2. System Design and Engineering

Using the soil data, a qualified professional creates a custom engineered design for your wastewater treatment system. This design plan must be submitted to the City and County of Broomfield for review and approval ¹. The design will specify the tank capacity, the layout and size of the drain field (or alternative treatment area), and the materials to be used. This professional design and soil testing phase can represent a significant portion of the project's upfront cost, often ranging from $1,500 to $5,000 or more.

3. Permit Application and Fees

With an approved design in hand, you or your contractor can apply for the installation permit. The application requires the engineered site plan, soils report, and other documentation ^{2 3}. Permit fees vary but commonly range from $150 to $500, with additional costs for required inspections throughout the build process ⁴.

4. Installation and Required Inspections

Once the permit is issued, licensed installers can begin work. The installation is subject to multiple mandatory inspections by the local health department:

• Open Hole Inspection: This occurs after the tank and drain field trenches are excavated but before any components are placed. The inspector verifies the dimensions, depth, and soil conditions match the approved design ⁵.
• Final Inspection: After the tank, piping, and distribution boxes are set, and before the system is backfilled, a final inspection is conducted. The inspector checks for proper installation, watertight connections, and overall compliance ^{6 7}.

Only after passing the final inspection will the system be approved for use and can be safely covered.

Cost Considerations for Septic System Projects

The total cost for a new septic system installation or a full system replacement in Broomfield can vary widely. For a standard residential septic system installation, homeowners can expect a typical range from $3,000 to over $20,000. Several factors influence the final price:

• System Type and Size: A conventional gravity-fed system is generally less expensive than an advanced treatment system (like an aerobic treatment unit or mound system), which may be required for challenging soils.
• Site Conditions: Difficult terrain, rocky soil, or a high water table can significantly increase excavation and labor costs.
• Design and Permit Costs: As noted, engineering and permitting add $1,500-$5,000+ to the project ^{8 9}.
• Tank Material: Concrete tanks are common and durable, while plastic or fiberglass tanks may have different cost points.
• Labor: Rates for licensed, experienced installers in the Denver metro area, including Broomfield, are a key component.

When replacing an old failing tank, be aware that local codes may require you to upgrade the entire system-including the drain field-to meet current standards, which affects the project scope and budget ¹⁰.

Choosing a Licensed Installer in Broomfield

This is not a DIY project. Working with a licensed installer approved by the local health department is not just a recommendation-it's a requirement for obtaining permits and passing inspections. A reputable professional will handle the permit process, adhere to the engineered design, schedule inspections, and ensure the system is built to last.

When evaluating septic contractors or installation companies, ask for:

• Proof of licensing and insurance.
• References from recent projects in Broomfield or Adams County.
• A detailed written estimate that breaks down design, permit, material, and labor costs.
• A clear timeline that accounts for the design approval and inspection phases.

Frequently asked questions

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