Your BEST Choice for HVAC, Plumbing, and Electrical in DeKalb, Illinois Since 1965.

Your BEST Choice for HVAC,
Plumbing, and Electrical in
DeKalb, Illinois Since 1965.

ABOUT US

When you choose to live in the community you grew up in, you simply care more. We’re the Carpenters, and we’ve been proudly serving homes and businesses in the Northern Illinois area for more than 50 years.

Founded in 1965 by our grandfather, Walter Carpenter, we adhere to the same principles that established him as a local leader in HVAC, plumbing, sewer, and electrical services.

We do work on a daily basis across Northern Illinois, including Kane County, DeKalb County, DuPage County, and Ogle County. We’ve been able to put together a tremendous and fairly large team of the area’s best tradesmen deployed throughout this area.

When you call us, you can always be certain we have a certified, experienced HVAC technician or plumber near you who is ready to help. Learn about our HVAC Guarantees.

SNW service truck.
SNW service team.

WHAT OUR CUSTOMERS SAY

“Ethan was out today. He did a wonderful job. Helpful, explained my concerns and how to keep my furnace working properly. Very friendly. Highly recommend his service.”
- Karen K.

“Technician Stella was punctual, polite, and very professional.
She inspected and cleaned the furnace. She explained all
the details and she stated that the furnace was in good shape.
ServiceNow should be proud to have her as an employee!”

- James S.

SPECIALS

 Tune up,  value coupon.
 off any purchase, excluding maintenance, coupon.

SPECIAL PAYMENT OPTIONS FOR HVAC, PLUMBING, ELECTRICAL, AND SEWER SERVICES

We offer convenient payment options to help you get through unexpected home emergencies.

WHY IT PAYS TO BE A HOME PROTECTION PLAN MEMBER

  • Extends the life of your equipment.
  • Keeps manufacturer’s warranties valid on your system.
  • Standard filter replaced (provided by homeowner).
  • Discount on all future repairs.
  • Loyalty credit—Monthly Club Members $50 credit per year, $25 per tune-up toward system replacement (max. $500).
  • 20% discount on Micropower Guard replacement media.
  • 20% discount on ultraviolet (UV) germicidal lamp replacement.
  • Discount on all equipment replaced.
  • Front of the line service—Club members receive priority service over all others.
  • Prescheduled tune-ups—We will let you know when your service is due.
  • 24/7 service—Reduced fee for after-hours emergency service.

OUR NEWS

How a Smart Thermostat Can Save You Money During a Heat Wave

August 15, 2026

Meet the smart thermostat, a small but powerful tool that can significantly improve the comfort and efficiency of your , home during an extended heat wave.  These practical devices can monitor the weather, automatically adjust the temperature when you leave or arrive, and let you know if your heating, ventilation, and air conditioning (HVAC) equipment…

3 AC Tips to Prevent a Breakdown During a Heat Wave

July 31, 2026

An air conditioner is your lifeline during a prolonged heat wave.  This life-saving comfort system is a necessity when temperatures soar and linger in , as they have under the heat dome that has scorched across . Risking an AC breakdown during extreme heat also risks your health. According to the National Weather Service, heat-related…

WE’RE HIRING

We’re growing. We’re adding service lines. We’re getting rave reviews. Why? Because we hire great people and we treat them as they deserve to be treated!

WE SERVICE ALL BRANDS

Amana Heating & Air Conditioning. American Standard Heating & Air Conditioning. Ameristar by American Standard Heating & Air. Armstrong Air. Bryant Heating & Cooling Systems. Carrier. Coleman Heating & Air Conditioning. Comfortmaker. Daikin. Day & Night Heating & Cooling Products. Fujitsu. Goodman Air Conditioning & Heating. Heil. Lennox. Mitsubishi. Payne. Rheem. RunTru by Trane. Ruud. Trane. Westinghouse. York.