8 verified septic companies across 2 cities in Multnomah County. Compare ratings, services, and request free quotes from local providers.
Multnomah County, Oregon is home to 8 verified septic service providers listed across 2 cities in this directory. While the majority of the county is served by municipal sewer systems centered on Portland, pockets of unincorporated land and older semi-rural areas — particularly in the eastern reaches toward Troutdale and the Sandy River corridor — still rely on private onsite septic systems. The region's wet winters and clay-heavy soils common in the Columbia River basin can affect drain field performance and make routine maintenance especially important. Homeowners in these areas benefit from working with providers who understand local soil conditions and the seasonal demands that Oregon's rainy season places on septic infrastructure. This directory helps residents locate qualified contractors for pumping, inspections, repairs, and system installations throughout the county.
Portland, OR
⭐ 4.8 (188 reviews)
Proline Plumbing provides plumbing and sewer services in Portland, Oregon. The locally owned and operated company offers 24-hour emergency plumbing services for residential, commercial, and industrial properties. Their plumbing services include emergency repairs, drain cleaning, water heater installation and maintenance for traditional and tankless systems, slab leak detection and repair using acoustic and thermal imaging technology, hydro jetting, and new construction plumbing installation. Sew
Portland, OR
⭐ 5.0 (35 reviews)
Portland, OR
⭐ 5.0 (1 reviews)
A Advanced Pumping provides septic system services for residential and commercial customers in the Vancouver, Washington area, operating from Battle Ground, WA. The company offers septic tank pumping, septic system inspections, locating and uncovering septic tanks, unclogging lines and drain fields, and small repairs on septic systems. They provide Service Plans that include friendly reminders for scheduling inspections and pumping maintenance. The company is licensed in Washington (CCB# WA RIVE
Troutdale, OR
⭐ 4.8 (204 reviews)
Goodman Septic Services is a septic system service provider located in Troutdale, Oregon. The company has built a strong reputation in the community, earning a Google rating of 4.8 stars based on 186 customer reviews. With this high level of customer satisfaction, Goodman Septic Services demonstrates consistent quality and reliability in its septic system services. The company serves the Troutdale area and surrounding regions, helping homeowners and property owners maintain and repair their septic systems. Their track record suggests they are a trusted choice for septic service needs in the local market.
Portland, OR
⭐ 4.6 (31 reviews)
Willy Make It? Temporary Site Services is a portable toilet and sanitation company serving the Portland, Oregon area, including NW Oregon, the Willamette Valley, and SW Washington. The company offers a range of rental units including single portable restrooms, ADA compliant restrooms, and two-person hand washing stations, making them a practical choice for construction sites, industrial projects, nurseries, farms, outdoor events, and remodels. Willy Make It? emphasizes professionalism and reliability, with technicians who are drug tested, background checked, and put through an intensive training program. The company claims more combined sanitation experience than any competitor in the region and backs that up with a guarantee that technicians are fast, friendly, and highly skilled. Their commitment to honest, integrity-driven service at an affordable daily rate sets them apart from other providers in the Pacific Northwest. To request a rental or learn more, customers can reach the team at 503-261-1234 or book directly through the company website.
Portland, OR
⭐ 4.5 (412 reviews)
# River City Environmental River City Environmental is a Portland-based environmental services company serving the greater Portland/Vancouver metro area since 1995. The company specializes in septic services, including system maintenance, repairs, and emergency response for septic and sewer issues. Beyond septic solutions, River City Environmental offers a comprehensive range of services including plumbing and drain services, stormwater management, sewer bypass, grease trap cleaning, excavation, hydroexcavation, water truck services, snow removal, and disinfection services. With a 4.5-star rating from 390 customer reviews, the company demonstrates consistent quality across its service offerings. River City Environmental operates with 24/7 availability year-round, providing emergency response capabilities for urgent septic, sewer, and drainage problems. The company serves residential, commercial, and industrial clients throughout the Northwest, maintaining additional service centers in Vancouver and Salem to better support the region's environmental and emergency service needs.
Portland, OR
⭐ 4.0 (8 reviews)
EMS Environmental Consultants is a licensed environmental consulting, engineering, and septic system design firm serving Oregon, Southwest Washington, and Nevada since 1997. The company offers a comprehensive range of services including septic system design, repair, and maintenance, as well as onsite wastewater system planning and permitting, wetlands delineation and mitigation, stormwater management, geohazard and erosion control, environmental site assessments, and surveying and engineering. EMS holds COBID certification as a Service Disabled Veteran Owned Small Business and is licensed across three states. The firm is recognized as an industry leader in developing difficult and environmentally sensitive properties, with experience navigating complex regulatory challenges at the state, county, and federal level. Using a holistic approach and innovative technology, EMS works to protect environmental integrity while advancing residential, commercial, and industrial development goals. The company is headquartered in Milwaukie, Oregon, and can be reached by phone or email during regular business hours Monday through Friday.
Portland, OR
Septic systems in Multnomah County, Oregon tend to be concentrated in the less densely developed eastern portions of the county, where properties were built before sewer lines were extended. Many homes in these areas date back several decades and may have older conventional gravity-fed systems or steel tanks that have since been replaced with concrete or polyethylene alternatives. In lower-lying areas near the Columbia River floodplain, high seasonal water tables can complicate standard gravity systems, making pressure-dosed or pump-assisted systems more common. Alternative systems, including mound systems, are sometimes required on lots with limited soil depth or restrictive soil horizons. Oregon's wet fall and winter seasons mean drain fields can become saturated, so scheduling pumping and inspections during drier months is often advisable for easier site access and accurate field assessment.
In Multnomah County, Oregon, onsite septic systems are regulated primarily through the Oregon Department of Environmental Quality, which oversees the statewide Onsite Program, and through coordination with county-level environmental health services. Permits are generally required for new system installations, major repairs, and alterations to existing systems. Oregon also has point-of-sale inspection requirements that may apply when a property with a septic system changes ownership, helping ensure systems are functioning properly before transfer. Homeowners seeking to understand specific permitting steps, setback requirements, or soil evaluation procedures should consult the Oregon DEQ's onsite septic resources as well as Multnomah County's own environmental health division, which may have additional local guidance for properties in unincorporated areas. Always verify current requirements with your local health department.
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