Proper underground systems are critical for rural and residential properties across Sonoma County. Our team combines practical field experience with professional equipment to install, inspect, and repair systems safely and efficiently.

Septic, Sewer, Water & Drainage Services in the Sonoma County

MM Miller Construction provides professional septic, sewer, water, and drainage services throughout Geyserville, CA, and the North Bay region. From new septic installations to emergency sewer repairs and drainage corrections, we deliver dependable underground infrastructure solutions. Call (707) 292-3827 to discuss your project today.


Installing a septic system requires careful planning, proper grading, and compliance with local regulations. We handle new system installations designed for long-term performance.

Septic installation services include:

Correct installation protects your property and ensures reliable operation for years to come.

Septic Repair

Septic issues can quickly disrupt daily use and cause serious property damage if not addressed promptly. We diagnose and resolve system failures efficiently.

Repair services include:

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Septic system troubleshooting

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Component replacement

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Drain field repairs

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Emergency septic response

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Flow and blockage correction

Our experience allows us to identify the source of problems and restore system function safely.

Sewer Lateral & Video Drain Inspections 

Accurate diagnosis is essential before performing sewer repairs. We use professional camera equipment to inspect underground lines and identify blockages or damage.

Inspection services include:

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Sewer lateral inspections

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Video camera drain inspections

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Line blockage detection

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Pipe damage identification

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Pre-purchase property inspections for realtors and property managers

Video inspections reduce guesswork and allow targeted, efficient repairs.

Utility Trenching for Sewer & Water Lines 

Proper trenching supports safe installation and replacement of underground lines. We dig and restore trenches while protecting nearby utilities and structures.

Trenching services include:

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Sewer line trenching

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Water line trenching

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Underground utility access

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Line replacement trenching

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Backfilling and surface restoration

Precision trenching ensures reliable system performance and protects surrounding infrastructure.

Water Line Installation & Repair 

Water supply lines must be installed and maintained correctly to prevent leaks, contamination, or property damage.

Water line services include:

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New water line installation

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Water line repairs

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Emergency water line response

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Line upgrades for remodels

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Replacement of aging infrastructure

Proper water line management protects both property and daily functionality.

Drainage & Erosion Control 

Drainage problems can lead to foundation damage, soil erosion, and standing water. We design grading and drainage adjustments to protect property stability.

Drainage services include:

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Drainage system installation

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Regarding water flow correction

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Standing water solutions

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Swale creation

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Erosion prevention grading

Effective drainage planning prevents long-term structural and land damage.

Built for Underground Infrastructure

Underground systems require precision, planning, and hands-on experience. Soil composition, natural slope, drainage flow, and proper pipe placement all play critical roles in long-term system performance. Even small miscalculations in depth or grading can lead to backups, standing water, structural damage, or expensive excavation repairs later. MM Miller Construction carefully evaluates each site in Geyserville, CA, before beginning work, assessing terrain conditions and underground variables to ensure accurate alignment and stable installation. Our approach emphasizes safe equipment operation, code-compliant practices, and durable construction methods that help protect your property and reduce future maintenance concerns.

Professional Equipment & Experienced Operators

 Excavating around underground utilities without training can cause serious damage and safety hazards. Our experienced operators understand trench depth requirements, proper slope calculations, and compliance standards specific to North Bay properties. By choosing MM Miller Construction, you gain reliable, professional underground system services backed by practical field experience.

Trust your underground systems to experienced professionals. Call (707) 292-3827 or click here for a consultation.