Expert Plumbing Services in Lake County and the Northwest Suburbs of Chicago

  • 24 Hour Emergency Service
  • Family Owned and Operated
  • Over 60 Years of Combined Experience
  • Certified Rinnai Pro Plumbing Company
  • Licensed and Insured
  • Check Out Our 5 Star Reviews!

Water Heaters

More consumers and businesses pick Rinnai than any other tankless brand. Our brand has been built on quality, and every unit is backed by the industry’s leading warranty. Plus, we’re the first major tankless brand to manufacture in the U.S.A. We can install, repair or replace your tankless water heater.


Plumbing Repair and Installation

Our team of expert plumbers are ready to help you with any plumbing problem including sewer line repair, water line leak repair, clogged drains or pipes, backflow testing and power rodding. We offer repair and installation services of faucets, sinks, showers, tubs, sump pumps, water heaters and much more!

24 hour emergency plumber


When a plumbing disaster occurs, you’ll need help from 24-hour local plumbers to prevent further damage to your home or business. Our emergency plumbing technician will arrive within 2 hours for all plumbing emergencies, including burst pipes, broken water heaters, overflowing toilets, and more.


Plumbing Company Servicing the Northwest Suburbs of Chicago

Allegiance Service Group is a family-owned and operated services group with over 60 years of combined experience. Our staff has terrific customer service, and our technicians are knowledgeable and efficient. If you’re looking for plumbers in Lake County and the northwest suburbs, you won’t regret working with Allegiance Service Group. Our plumbing services cover everything from emergencies to inspections, installations, and repairs. We are the go-to plumbing and electrical service group in Lake, McHenry, Cook, DuPage, and Kane Counties.


  • Plumbing
  • Plumber
  • 24 Hour Plumber
  • Plumbing Repair and Service
  • Emergency Plumber
  • Emergency Plumbing Repair
  • Drain Jetting
  • Drain Cleaning
  • Drain Rooter
  • Clogged Drain
  • Electric Water Heater
  • Commercial Water Heater
  • Gas Water Heater
  • Water Heater Repair
  • Water Heater Replacement
  • Water Heater Installation
  • Tankless Water Heaters
  • Rinnai Tankless Water Heater
  • Sewer Pipe
  • Backup Sump Pump
  • Boiler Repair
  • Faucet Repair
  • Garbage Disposal Installation
  • Overhead Showers
  • Backflow Testing and Repair
  • Water Lines Repair
  • Toilet Repair
  • Garbage Disposal Repair
  • Hot Tub Hook Ups
  • Slab Leak
  • Sump Pump Repair
  • Sewer Service
  • Complete Sewer Replacement
  • Sewer Electrically Power Rodded
  • Sewer Drain Cleaning
  • Gas Line Installation
  • Electrical Services
  • Electrical Panel Upgrades
  • Electrical Panel Change out
  • Street Lighting

If you are looking for a plumber you can trust, give us a call or fill out the form to request service. We look forward to helping you!



What our customers are saying