When it comes to new septic system installations and expert repair services in Montclair, CA, homeowners and property managers rely on the experienced team at Certified Septic Service. We provide full-service septic system design, excavation, plumbing tie-ins, and long-lasting repair work that ensures your system runs efficiently. Whether you're building a new home or replacing an old or failing septic tank, our team is here to help from start to finish. Call (909) 628-8685 today to request a free estimate and expert consultation!
New Septic System Installation for Homes and Businesses
Installing a new septic system is a major investment, and it needs to be done right the first time. At Certified Septic Service, we work closely with local building departments and environmental health agencies to ensure every septic system we install is code-compliant, eco-friendly, and designed to support your specific property use.
Our licensed team performs:
Detailed site evaluations and soil percolation testing
Engineered system design based on property size and wastewater load
Permit acquisition and regulatory compliance
Complete excavation and tank installation
Leach field construction or alternative dispersal system installation
Water-tight and high-efficiency tanks
Plumbing line connections from your home or building
We use industry-leading materials and best practices to provide you with a septic system that will serve your household or business for decades. If you’re building a new home, replacing a failed system, or adding new capacity to an existing property, our team will ensure a smooth, code-compliant process from start to finish.
Expert Septic Repairs to Extend System Life
Septic system issues can create serious problems for your home or business, from unpleasant odors to backups and contamination. At Certified Septic Service, we provide comprehensive septic repair services throughout Montclair, CA, and surrounding areas. Our highly trained technicians can quickly diagnose and fix common and complex issues to restore your system's performance.
We provide repair solutions for:
- Cracked or leaking septic tanks
- Clogged or crushed drain lines
- Failing leach fields or absorption trenches
- Broken baffles, risers, or filters
- Sludge buildup causing overflows
- Root intrusions and line damage
- Improper grading or water flow
We understand the urgency of septic problems, and our team arrives prepared with the equipment and expertise needed to make fast, effective repairs. We’ll also provide maintenance recommendations and proactive solutions to prevent the issue from recurring in the future.
We Provide Sewer Line Connection Services
If you're converting from septic to city sewer or need a new connection for a remodel or new construction, we can help. Certified Septic Service offers complete sewer line installation and tie-in services. We’ll handle the permitting process, trenching, backfill, pipe placement, and system testing to ensure your property is properly connected to the municipal sewer infrastructure.

Whether you’re upgrading, replacing, or rerouting your septic or sewer system, our technicians make sure the job is done safely and legally.
Why Choose Certified Septic Service?
Licensed C-42 Contractor: License #1058134
Decades of local experience in septic system work
Full-service installation, repair, and sewer connection
Permit handling and code compliance on every job
Competitive, transparent pricing
Trusted by homeowners, realtors, and contractors across San Bernardino County
We take pride in the quality of our work and are committed to delivering lasting results on every job we complete. Our goal is to provide peace of mind and dependable septic solutions that save you time and money.
Schedule Your Septic Installation or Repair Today
If you're in need of septic system installation, repair, or sewer line services in Montclair, CA, Certified Septic Service is ready to help. Our team provides honest recommendations, expert craftsmanship, and excellent customer service every step of the way. Call (909) 628-8685 or contact us online today to schedule your service.
