9 verified septic companies across 7 cities in Calvert County. Compare ratings, services, and request free quotes from local providers.
Calvert County, Maryland sits on a narrow peninsula between the Chesapeake Bay and the Patuxent River, where a large share of residents rely on private septic systems rather than municipal sewer infrastructure. This directory lists 9 verified septic service companies operating across 7 cities and towns in the county, giving homeowners and property managers a straightforward way to find local help. Because much of Calvert County features sandy or clay-heavy soils common to the Western Shore's coastal plain, soil conditions can significantly influence how a septic system performs and how frequently it requires attention. The county's ongoing residential growth, particularly in communities like Owings, Huntingtown, and Lusby, means that both older systems and newer installations are well represented here. Whether you need routine pumping, a pre-sale inspection, or a full system repair, the providers listed on this page serve the specific conditions and regulations of Calvert County.
Owings, MD
⭐ 5.0 (28 reviews)
Port Republic, MD
⭐ 4.8 (51 reviews)
Brother's Johnson is a family-owned portable sanitation and septic services company based in Calvert County, Maryland, operating since 1988. The company provides commercial and residential portable toilet rentals, mobile event restroom trailer rentals, and septic services throughout Maryland's Tri-Counties (Calvert, St. Mary's, and Charles), as well as the Washington, DC Metropolitan area. They maintain the largest inventory of modernized portable sanitation rental solutions in their service are
Owings, MD
⭐ 4.7 (72 reviews)
# Outback Porta-Jon Inc. — Septic & Portable Sanitation Services Outback Porta-Jon Inc. is a third-generation, family-owned septic service provider serving Southern Maryland and Anne Arundel Counties since 2003. With over 40 years of combined experience across multiple generations, the company offers comprehensive septic pumping, installation, repairs, and portable sanitation solutions for residential and commercial properties. The team holds mound and sand mound certifications, ensuring services meet rigorous quality and safety standards. The company distinguishes itself through 24/7 emergency response availability, free estimates delivered within 48 hours, and commitment to fair pricing without compromising quality. Equipped with a new 2023 Vactor truck, Outback Porta-Jon Inc. addresses urgent septic needs with immediate professional service. Beyond technical expertise, the business actively supports local community organizations including Girl Scouts, Boy Scouts, fire departments, and Pets with Disabilities programs. With a 4.7-star Google rating based on 71 customer reviews, the company demonstrates consistent customer satisfaction and reliability in septic system maintenance and emergency services.
Huntingtown, MD
⭐ 1.0 (1 reviews)
Hayden's Septic, Inc. is a full-service, 100% family-owned and operated septic company based in Huntingtown, Maryland. Active in septic contractor work since 2007, they also hold a Master Plumbing Gas Fitters License, providing comprehensive knowledge of entire plumbing systems, not just septic. They offer a wide range of services including riser installations, BAT tank system installs, grinder pump repairs and installations, public sewer connections, pumping out septic tanks, and installing entire septic systems. Hayden's Septic is built on trust and reputation, focusing on quality over quick fixes and providing honest recommendations. They are committed to treating every system like their own, using proven methods and quality materials to prioritize system health. Customers can expect hard work done right and a dedication to standing behind their work.
Sunderland, MD
⭐ 4.9 (45 reviews)
Jimmy's Septic LLC is a septic service provider based in Sunderland, Maryland, dedicated to maintaining and repairing residential and commercial septic systems. With a 4.9 Google rating across 45 customer reviews, the company has established a strong reputation for reliable and professional service. Jimmy's Septic LLC offers comprehensive septic solutions tailored to meet the needs of the local community. The business is committed to delivering quality workmanship and customer satisfaction in all aspects of septic system maintenance and repair.
St. Leonard, MD
⭐ 4.8 (32 reviews)
J. Calvin Wood Jr., Inc. is a fully licensed septic system contractor serving Calvert and St. Mary's Counties in Maryland with more than 30 years of experience. Based in Saint Leonard, MD, the company performs perc tests, installs new septic systems, and repairs existing ones, including mound systems, septic tanks, drain fields, and pump pits. The team is experienced in installing nitrogen removal systems required by the Calvert and St. Mary's County Health Departments for properties in critical areas. Free estimates are available for all projects. In addition to septic services, J. Calvin Wood Jr., Inc. offers excavation, land clearing, grading, demolition, and storm water management, along with delivery of topsoil, gravel, sand, and mulch to residential and commercial job sites. The company is known for prompt, on-time service and high-quality materials. Same-day and next-day delivery options are available. The team operates Monday through Friday from 7 AM to 4:30 PM and Saturday from 8 AM to noon. Contact them by phone at 410-586-2721 or toll free at 800-250-9887.
Lusby, MD
⭐ 4.7 (21 reviews)
Prince Frederick, MD
⭐ 4.5 (38 reviews)
SPEK Septic Services is a family-owned septic company operating in Prince Frederick, Maryland. The company is fully licensed in Calvert, Charles, and Saint Mary's Counties. They offer percolation testing, septic installations, septic repair, diagnostic services, and property transfer inspections. SPEK is certified in the installation of Best Available Technology (BAT) units, at-grade soil absorption systems, and sand mound installations. The company is also certified with manufacturers and the S
Owings, MD
⭐ 4.0 (24 reviews)
Cotton's Septic is a septic service provider based in Owings, Maryland, serving the local community with septic system maintenance and repair solutions. The company has built a reputation reflected in its 4.0 Google rating across 24 customer reviews, indicating consistent service quality and customer satisfaction. Cotton's Septic specializes in helping homeowners and property owners maintain properly functioning septic systems through professional expertise and reliable service. With roots in the Owings area, the company understands the specific septic needs of the region and provides localized support to residential clients seeking dependable septic care and solutions.
Calvert County's housing stock ranges from older rural homes built decades before modern septic standards to newer subdivisions developed during the county's population growth in recent decades. Many properties outside the Prince Frederick area remain on private septic systems, and the mix of soil types across the peninsula means system design varies considerably from one neighborhood to the next. Gravity-fed conventional systems are common on lots with adequate soil depth and suitable percolation rates, while pump-up and pressure-dosed systems are often installed where the water table is higher or soils are less permeable. Alternative and enhanced treatment systems are increasingly common in areas near sensitive Chesapeake Bay tributaries, where nutrient reduction requirements apply. Seasonal rainfall and occasional heavy storm events can stress drain fields, making late fall and early spring reasonable times to schedule routine inspections or pumping.
In Calvert County, septic system permits and oversight fall under the Calvert County Health Department, which works in coordination with the Maryland Department of the Environment. Any new septic installation, major repair, or system alteration generally requires a permit issued through the local health department before work begins. Maryland state law also requires an inspection of the septic system as part of real estate transactions, and buyers or sellers are typically advised to arrange this well in advance of closing. Homeowners seeking information on required setbacks, approved system designs, or nutrient-reduction upgrade programs for Bay-adjacent properties can contact the Calvert County Health Department directly. The Maryland Department of the Environment also publishes guidance on alternative system approvals and nitrogen-reduction requirements applicable to certain areas of the county. Always verify current requirements with your local health department.
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