CRS Heating and Air Conditioning, Inc.
CRS Heating and Air Conditioning, Inc.
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  • Air Conditioning
    • Air Conditioning
    • AC Repair
    • AC Installation
    • AC Maintenance
    • High Velocity HVAC
    • Ductless AC
    • Thermostats
  • Heating
    • Heating
    • Emergency Heating Repair
    • Furnace Repair
    • Furnace Installation
    • Boiler Repair
    • Boiler Installation
    • Heat Pump Repair
    • Heat Pump Installation
    • Heating Maintenance
    • Garage Heaters
    • Thermostats
  • Indoor Air Quality
  • Preventive Maintenance
  • FAQs
  • Blog
  • More
    • Home
    • Air Conditioning
      • Air Conditioning
      • AC Repair
      • AC Installation
      • AC Maintenance
      • High Velocity HVAC
      • Ductless AC
      • Thermostats
    • Heating
      • Heating
      • Emergency Heating Repair
      • Furnace Repair
      • Furnace Installation
      • Boiler Repair
      • Boiler Installation
      • Heat Pump Repair
      • Heat Pump Installation
      • Heating Maintenance
      • Garage Heaters
      • Thermostats
    • Indoor Air Quality
    • Preventive Maintenance
    • FAQs
    • Blog
(630) 940-9155
  • Home
  • Air Conditioning
    • Air Conditioning
    • AC Repair
    • AC Installation
    • AC Maintenance
    • High Velocity HVAC
    • Ductless AC
    • Thermostats
  • Heating
    • Heating
    • Emergency Heating Repair
    • Furnace Repair
    • Furnace Installation
    • Boiler Repair
    • Boiler Installation
    • Heat Pump Repair
    • Heat Pump Installation
    • Heating Maintenance
    • Garage Heaters
    • Thermostats
  • Indoor Air Quality
  • Preventive Maintenance
  • FAQs
  • Blog
(630) 940-9155

Thermostat Installation & Service

Get Precise, Reliable Temperature Control in Every Season 

When Your Thermostat Isn’t Right, Nothing Feels Right

Your thermostat is the brain of your HVAC system — and when it’s outdated or misbehaving, your comfort takes the hit. CRS Heating and Air Conditioning, Inc. offers full thermostat support: repairs, replacements, upgrades, and smart integration. Whether you're using central AC, ductless, or high velocity, we'll make sure your system communicates clearly.

Signs You May Need a New Thermostat

  • Your system short cycles or runs inconsistently
     
  • Room temperature doesn’t match the thermostat reading
     
  • The screen is unresponsive or won’t hold a program
     
  • The thermostat is older than 10 years
     
  • You’ve upgraded your HVAC system but kept the old controller
     
  • You want the convenience of app or voice control

Our Thermostat Services

Traditional programmable thermostats

Smart thermostats like ecobee, Nest, and Honeywell

Traditional programmable thermostats

Non-programmable manual models

Smart thermostats like ecobee, Nest, and Honeywell

Traditional programmable thermostats

Smart thermostats like ecobee, Nest, and Honeywell

Smart thermostats like ecobee, Nest, and Honeywell

Smart thermostats like ecobee, Nest, and Honeywell

Multi-zone control systems

Troubleshooting thermostat-related heating or cooling problems

Smart thermostats like ecobee, Nest, and Honeywell

Thermostats paired with ductless or high velocity systems

Troubleshooting thermostat-related heating or cooling problems

Troubleshooting thermostat-related heating or cooling problems

Troubleshooting thermostat-related heating or cooling problems

Troubleshooting thermostat-related heating or cooling problems

Troubleshooting thermostat-related heating or cooling problems

Why Upgrade to a Smart Thermostat?

Smart thermostats offer better control, more savings, and more convenience. With features like geofencing, usage reports, scheduling, and voice integration, they can help reduce your energy bills without sacrificing comfort. We’ll walk you through your options and install it cleanly — no tech headaches.

Why Choose CRS for Thermostat Work?

We’re not here to sell you a gadget you don’t need. CRS is woman-owned, local to McHenry, and focused on comfort that fits your life. We work with what’s best for your system — and your home.

Ready to Replace or Troubleshoot Your Thermostat?

Call (630) 940-9155 or use the contact form to schedule service.

We’ll help you upgrade, repair, or reprogram your thermostat so your system works the way it should. 

Upgrade Now

CRS Heating and Air Conditioning, Inc.

Woman Owned & Operated in McHenry, IL

(630) 940-9155


Copyright © 2025 CRS Heating and Air 

Conditioning, Inc. - All Rights Reserved.

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