65 Industrial Park Dr, Waldorf, MD 20601 · Charles County
Is Rainbow Construction licensed?
Rainbow Construction appears on a Maryland septic license or certification list. The Septic Guide matched these credentials to the issuing agency's published list as of October 2026; confirm the current status with the agency before you hire.
| Credential | Number | Issued by | Verify |
|---|---|---|---|
| Maryland MDE Certified BAT (Best Available Technology) Septic Installer | — | Maryland Department of the Environment | Agency lookup |
A matched credential shows the holder was on the agency's list when we checked. It does not by itself authorize every kind of septic work: an installer license, a pumper license and an inspector certification are different credentials.
What septic services does Rainbow Construction offer?
Implied by its state license: Septic system installation, Aerobic septic systems.
Ask Rainbow Construction to confirm it handles your specific job and service area. Guides: Septic system installation · Aerobic septic systems.
Before you hire Rainbow Construction
- Check the license on the agency lookup above and ask which person holds it.
- Ask who pulls the permit and whether the fee is in the quote.
- Ask for proof of liability insurance sent by the insurer.
- Get the scope and price in writing. How to check a septic license.
Is this your business? Correct or update this listing. Listing data: state license lists and public business information, as of October 2026. Not an endorsement.