4.8 out of 5 from 414 Google reviews
Professional14Friendly10Knowledgeable9
2172 GA-155 N, McDonough, GA 30252
Repair or replacement of failing systemsSeptic inspectionsTank pumping and cleaningEmergency or 24/7 service+3 more
Georgia City Directory
Septic Companies in McDonough, GA
McDonough is the county seat of Henry County and part of the Atlanta metropolitan area. Nearby unincorporated communities such as Blacksville, Flippen, Kelleytown and Ola use McDonough ZIP codes, so a McDonough address does not always mean a home is inside the city. Either way, septic permits for the area come from the Henry County health department.
8 companies listed
Ranked by rating, reviews and focus
Checked November 2026
Septic Tank Pumping, Repair & Installation in McDonough
These are local septic companies that may provide septic service such as septic tank pumping, septic repair or septic installation. A service is shown only when that company's own website confirms it.
Ranked by rating, review count and specialist focus. Unrated companies last. No company pays for its place.
Badges come from what customers say in Google reviews
- 4.9 out of 5 from 37 Google reviewsFair price7Honest6On time / Responsive64496 Union Church Rd, McDonough, GA 30252
- 4.9 out of 5 from 1,126 Google reviewsProfessional13Friendly10On time / Responsive763 Keys Ferry St, McDonough, GA 30253Repair or replacement of failing systemsSoil tests, perc tests or permit helpSeptic inspectionsTank pumping and cleaning+4 more
- 4.8 out of 5 from 632 Google reviews441 Stone Rd, McDonough, GA 30253New construction installsRepair or replacement of failing systemsSoil tests, perc tests or permit helpSeptic inspections+6 more
- 4.4 out of 5 from 32 Google reviews940 Dailey Mill Rd Ste 101, McDonough, GA 30253New construction installsRepair or replacement of failing systemsSeptic inspectionsTank pumping and cleaning+4 more
- 5.0 out of 5 from 4 Google reviewsProfessional3Knowledgeable3Service-area business; no public street addressNew construction installsRepair or replacement of failing systemsSeptic inspectionsTank pumping and cleaning+1 more
- 5.0 out of 5 from 8 Google reviews50 Kelly Rd Ste 20, McDonough, GA 30253
- 2.0 out of 5 from 8 Google reviews1115 N Ola Rd, McDonough, GA 30252
What the McDonough listings show
This page lists eight companies for McDonough. All eight have a Google rating. Express Plumbing & Septic ranks first with a 4.8 rating from 414 reviews. We were able to read the websites of five of the eight. Among those, three describe installing systems for new construction, five mention repairing or replacing failing systems, five offer tank pumping and none mention alternative systems. One listing is a service-area business that does not publish a street address.
City streets and county roads
U.S. Route 23 runs through the center of McDonough, and Interstate 75 crosses the southwestern arm of the city. Away from the main roads, much of the surrounding area is unincorporated county land, and that is where many septic systems sit. Georgia's rules require a construction permit before anyone installs a system or starts developing a lot that will use one, and the county inspects the site and looks at soil, groundwater and rock before it approves the permit.
Where these companies say they work
Four of the McDonough companies list the areas they serve on their websites. Besides McDonough, the places named by more than one of them are Fayetteville, Jonesboro, Stockbridge, Atlanta, Conyers, Covington, Henry County and Locust Grove. Each business page shows the areas that company names, so check that your property is covered before you call. Seven of the eight publish hours on Google, including three that show as open 24 hours a day, and six link to a company website. For more choices nearby, the Henry County page lists eleven more companies in the county that are not on a city page.
Questions worth asking in McDonough
None of the five websites we could read mentions alternative systems such as aerobic, mound or engineered designs, so if your lot may need one, ask whether the company installs them. Only two of the five websites we could read mention soil tests, perc tests or permit help, so ask who will arrange the soil evaluation and file the permit with the county health department. Only two of the five websites we could read mention free estimates, so ask up front whether a site visit or quote carries a charge. A missing mention does not mean a company does not offer the service; it only means its website did not say so.
Before you call a McDonough installer
Have the address, the bedroom count and any old permit or repair records ready. Ask whether the company files the Henry County permit, whether a soil report is already on file, and what the quote includes. Henry County also has its own county page in this directory for service-area businesses with no city listed, so if you want more choices, check that page as well as the McDonough list below.
How septic permits work in Georgia
Georgia's onsite sewage rules (Rule 511-3-1-.03 of the Georgia Department of Public Health) say no one may install a septic system, or begin developing a lot that will use one, without first getting a construction permit from the County Health Department. Repairs, replacements and additions to existing systems must be permitted and inspected too.
The application covers the property, the planned system, the number of bedrooms and the soil, including seasonal high groundwater and any rock. The county issues the permit only after a site inspection with favorable findings, and a system may not be covered or used until the county has made a final inspection and approved it in writing.
The Department certifies the people who install, inspect, pump and repair septic systems, and publishes lists of certified installers, pumpers and soil classifiers. A certification from another state does not carry over to Georgia.
A plain-language summary, not legal advice. Sources: Ga. Comp. R. & Regs. r. 511-3-1-.03 and Georgia DPH onsite sewage program. Your county environmental health office can answer questions about a specific property.