Why schedule an annual backflow device inspection?

By Illinois law, your backflow device must be tested and certified at time of installation and on an annual basis thereafter.

What is backflow? Find answers: Backflow FAQ


Or see our convenient forms:

• Commercial requests
• Residential requests

BACKFLOW Testing | PREVENTER Installation

KAS Corp.—Serving Chicagoland since 2000

KAS Corp. is a fully licensed, bonded and insured Illinois plumbing contractor specializing in backflow prevention devices. KAS Corp. has served our customers for 10 years. We pride ourselves on being skilled craftsman with superior knowledge of the industry, and we are committed to providing you a solution for all your backflow needs.

Backflow Services

• Backflow Preventer Installation
• Annual Backflow Testing Service
• Backflow Device Repair
• FREE Site Surveys!
  See detailed information: Backflow testing, service, & installation

Commercial Service:
Located in Frankfort, Illinois, KAS Corp. serves commercial accounts within a 40-mile radius from Frankfort, IL (zip code: 60423).

Residential Service:
We are proud to offer backflow testing services to local communities, such as Frankfort, Tinley Park, Orland Park, Mokena, Lemont, New Lenox, & Matteson, IL.

Contact KAS Corp. today for free estimates on backflow testing, preventer sales and device installation.