Septic Tank Repair/Replace Longview, Washington

Septic Tank Repair/Replace Service in Longview, Washington

At Proline Plumbing & Sewer, we provide complete septic tank installation and replacement services for properties without access to municipal sewer systems. From system design to permitting, excavation, installation, and inspection, our team ensures your septic system is properly sized, expertly installed, and compliant with all environmental and regulatory standards.

Comprehensive Site Evaluation & Design

Every installation begins with a detailed site evaluation that includes:

• Percolation testing and soil analysis
• Groundwater assessments to determine ideal tank and drain field locations
• Collaboration with licensed engineers and soil scientists

These steps help us design systems that fit your property’s unique conditions and meet local code requirements.

Selecting the Right Septic Tank

Choosing the correct tank depends on material, size, and site conditions.
Our technicians help you select from:

• Concrete tanks for durability and longevity
• Fiberglass or HDPE tanks for lightweight, corrosion-resistant options

We consider access, soil type, and long-term maintenance needs when recommending the best solution for your property.

Modern Tank Design & Efficient Treatment

Today’s systems often feature multi-chamber tanks for improved treatment.
The first chamber handles solids, while the second provides further clarification before water flows to the drain field.
Our expert installation ensures:

• Proper baffle placement
• Correct inlet and outlet alignment
• Maximum treatment efficiency

Precise Excavation & Drain Field Installation

Excavation and drain field installation are performed with precision and safety in mind.
We use specialized equipment to:

• Maintain correct tank elevation
• Protect underground utilities
• Prevent settling or stress on system components

Drain fields are designed around your soil’s absorption capacity, using perforated pipes, gravel beds, or chamber systems to evenly disperse treated water. For challenging sites, pressure distribution systems ensure consistent flow across the entire field.

Replacement & Upgrades

When replacing an old or failed system, we:

• Diagnose existing issues and assess current regulations
• Determine if full replacement or partial upgrades are needed
• Properly decommission abandoned tanks to avoid safety and contamination risks

Permitting & Regulatory Compliance

Proline Plumbing & Sewer manages all aspects of permitting and inspection, including:

• Detailed system designs and soil reports
• Coordination of regulatory inspections
• Preparation of final documentation for approval

Our licensed installers guarantee technical accuracy and compliance with all codes.

Advanced & Alternative Treatment Systems

For properties with poor soil or limited space, we offer advanced treatment options such as:

• Aerobic treatment units
• Sand filters
• Constructed wetlands

These systems meet stricter environmental standards and require specialized installation and maintenance—services our technicians are fully trained to provide.

Quality Installation & Final Inspection

We go beyond standard practices to ensure system longevity, including:

• Proper pipe slopes and secure tank anchoring
• Installation of access risers for easy maintenance
• Comprehensive testing and inspection before activation

Final inspections confirm watertight integrity, proper drainage, and compliance with design specifications.

Site Restoration & Homeowner Education

After installation, we restore the property with proper grading and erosion control. We also provide homeowner guidance on:

• Responsible waste disposal
• Water conservation practices
• Routine pumping and maintenance schedules

Educated homeowners can prevent common issues like overloading, grease buildup, and chemical interference.

Warranties & Environmental Commitment

We use materials backed by strong manufacturer warranties and follow certified installation procedures to protect coverage.
Our work also supports environmental protection through systems designed to reduce nitrogen, phosphorus, and pathogen discharge, helping preserve groundwater quality.

Why Choose Proline Plumbing & Sewer

At Proline Plumbing & Sewer, we’re committed to delivering safe, efficient, and environmentally responsible septic solutions. From new installations to full system replacements, our licensed experts ensure your wastewater system performs reliably for decades.

We’re proud to offer 24-hour emergency repair services to keep your system running when you need it most.