Best Companies in Oakland, CA

Avalon Rooter is a licensed plumbing and sewer contractor serving the East Bay region of the San Francisco Bay Area, including Oakland, Berkeley, Richmond, Alameda, Concord, Lafayette, Orinda, Piedmont, and Walnut Creek. The company operates from Richmond, California and has been building its presence since 2021. Avalon focuses on sewer and plumbing services: sewer inspections, sewer line replacement, drain cleaning, rooter and hydro-jetter services, plumbing repairs, and tankless water heater installation. They also offer septic tank pumping and Orenco AdvanTex advanced treatment septic system installation, which serves the portion of East Bay properties that rely on on-site septic rather than municipal sewer. The company differentiates itself on its Done-Once, Done-Right philosophy — avoiding repeat visits and upsells in favor of lasting repairs. They operate Monday through Friday 8 AM to 5 PM and can be reached at (510) 399-8744. For septic and sewer work in the Oakland and East Bay corridor, Avalon Rooter covers the technical spectrum from basic drain clearing through full sewer line replacement.

Chappell Pump & Supply, located in Gilroy, CA, has over 85 years of experience serving residential, agricultural, commercial, and industrial customers with their water well system needs. They offer a range of services including installation, repair, and maintenance of well and water systems. They are a C57 licensed contractor and implement high-quality installation methods and techniques. Chappell Pump & Supply also provides services such as electrical installations and repairs for water systems and well pumps, excavation, and plumbing services for running outside water lines.

Purviance Drillers Inc. provide expert water well drilling, pump sales, pump repairs, irrigation sales, and more in Linden, CA.

McPherson Well Drilling specializes in repairing wells, where other companies would rather replace or drill a new well and their phones are answered Live 24/7.

Provides certified drinking water testing services for homeowners, real estate transactions, and private wells throughout the San Francisco Bay Area.

Cal Water has been dedicated to providing customers with a reliable supply of safe, clean drinking water for nearly 100 years. They offer 24/7 emergency support and customer service from 7 a.m. to 7 p.m. to answer questions by phone. Customers also have 24/7 online account access to make payments, start and stop service, and report leaks. Cal Water actively reviews bills introduced at the California Legislature and supports those that align with their core values.

Offers well testing services and can help manage nutrient and water resources.

Samples and tests water extensively to ensure it is safe to drink.

A-1 Septic Tank Service Inc. is a family-owned Bay Area institution that has been operating since 1953 — over 70 years of continuous service to the greater San Francisco Bay Area. Based in Hayward, CA, the company serves the full Bay Area across the East Bay, North Bay, South Bay, and West Bay, making them one of the most geographically broad septic and grease trap service providers in the region. Their specialty is non-hazardous liquid waste pumping, with particular expertise in septic tank pumping, grease trap cleaning, and clarifier cleaning. The company runs advanced equipment capable of pumping over long distances and from depths up to three stories below grade, using booster pumps that generate stronger suction for thick or dense liquids. They also offer video camera inspection and hydro jetting for more complex diagnostics and blockage clearing. A-1 Septic Oakland has a 24-hour emergency service line, which is essential for commercial clients in food service or property management who cannot afford system downtime. The company has built its multi-decade reputation on honesty and reliability — qualities that are harder to fake when you have been in a market as long as they have. For Bay Area property owners and businesses dealing with septic or grease trap needs, A-1 Septic Tank Service Inc. combines the trust of a legacy operation with the equipment capabilities of a modern service provider. Contact them at (510) 886-4455 or info@a1tank.net.

Offers septic tank pumping in Oakland, CA.

American Sanitation Inc is a family-owned and operated portable sanitation and septic services company headquartered at 1729 Action Ave in Napa, California, serving the greater Bay Area and Northern California. They market themselves as the Bay Area's Premier Choice for VIP Restroom Trailers, Portable Toilet Rentals & Septic Services and pride themselves on direct service delivery — no subcontracting. Septic services include septic tank pumping, tank inspections to check for balanced levels and early-stage issues, tank repair, and tank replacement. They also serve the winery and food service industries with grease trap services and winery waste pump-outs. Their portable sanitation division is extensive: standard portable toilets, ADA-compliant units, flushable restrooms, VIP luxury units, and luxury restroom trailer rentals, plus hand wash stations. American Sanitation serves a wide regional footprint across Alameda, Contra Costa, Marin, Napa, Sacramento, San Francisco, San Mateo, Santa Clara, Solano, Sonoma, and Yolo Counties. Main line: (800) 570-7085; local Napa: (707) 554-8258; after-hours emergency: (707) 531-0438. Free estimates available. Note: the database lists Oakland as the city, but the company headquarters is in Napa — Oakland is within their service territory.

Offers affordable septic pumping in Oakland, CA including tank pump outs, system cleanouts, and emergency service.

24/7 Plumbers Oakland is a full-service plumbing, septic, and HVAC contractor serving Oakland, CA and surrounding East Bay communities including Alameda, San Leandro, Emeryville, Berkeley, Moraga, San Lorenzo, Orinda, and Castro Valley. They operate on a 24/7 emergency basis with free estimates and same-day service available throughout the East Bay. Septic services include pumping, repair, cleaning, and installation — serving properties across the Oakland hills and East Bay communities where septic systems are common outside municipal sewer infrastructure. Plumbing services cover emergency repairs, boiler work, sump pump installation, tankless water heater installs, and water heater repair. HVAC capabilities include heat pump, furnace, and general heating system services. Free at-home consultations and no-commitment estimates are standard, with 24/7 availability covering all days including weekends and holidays. The Oakland service area covers much of the inner East Bay and extends into the foothills and Lamorinda corridor. Reachable at (510) 296-3736 or contact@plumbingcontractoroaklandca.com, 24/7 Plumbers Oakland earns 5-star reviews with customers highlighting fast response, effective main line clearing, same-day water heater repairs, and reliable toilet repair. A dependable local option for East Bay homeowners needing urgent plumbing or septic service.

Eaton Drilling Co., LLC. provides services at the earliest stages of the groundwater production process, including exploratory drilling and geophysical analysis, site-specific well design and construction of water wells to accommodate agricultural, domestic, municipal and research needs.

Expert Water Solutions is a well drilling contractor in Northern CA that has built a reputation on reliability, expertise, and quality service throughout Northern California.

Handles a wide range of projects from simple drain unclogging to complete sewage system installations, serving Oakland and surrounding areas.

Offers professional, safe, and reliable septic services and repairs in Oakland, CA.