When searching for local septic tank contractors, a number of steps can help you find the right pro:
Check for online reviews from other homeowners.
Ask for the contractors' license and insurance to make sure you're working with credible professionals.
Make sure the price and project include both pumping and cleaning.
Focus on contractors who have been in business for a while and have experience in this type of work.
Ask about the process they'll use to pump out the tank without contaminating its surroundings.
Your best bet is finding one reliable contractor who you can rely on for both your current and future cleanings.