Thermostat Repair and Replacement in Denver, Colorado

Stay Comfortable Year-Round with Reliant Radiance

A thermostat is the heart of your home’s comfort system. When it stops working correctly, your entire heating and cooling system can suffer. At Reliant Radiance, we provide expert thermostat repair and replacement services in Denver, Colorado, helping homeowners and businesses maintain perfect indoor temperatures and improve energy efficiency.

Reliable Thermostat Repair Services

If your HVAC system isn’t turning on, running constantly, or showing the wrong temperature, the thermostat may be the problem. Our experienced HVAC technicians can quickly diagnose the issue and provide reliable thermostat repair to restore proper control of your system.

We service all major thermostat brands and types — including programmable, digital, and smart thermostats — ensuring your comfort system operates smoothly again.

When to Replace Your Thermostat

Sometimes, repair isn’t enough. If your thermostat is old or outdated, upgrading to a newer model can improve your home’s comfort and efficiency. You might need a thermostat replacement if you notice:

  • Inconsistent or inaccurate temperature readings
  • Your HVAC system won’t turn on or off properly
  • Higher-than-usual energy bills
  • Your current thermostat is over 10 years old
  • You want to upgrade to a smart thermostat for convenience and savings


Our team can help you select the right thermostat for your system and lifestyle — from basic digital models to advanced Wi-Fi and smart thermostats that give you full control from your smartphone.

Benefits of Upgrading Your Thermostat

  • Improved Comfort Control: Maintain consistent temperatures throughout your home.
  • Energy Savings: Smart thermostats can reduce energy use by automatically adjusting settings.
  • Remote Access: Manage your home’s temperature anywhere using your mobile device.
  • Long-Term Reliability: Modern thermostats offer better performance and fewer malfunctions.

Why Choose Reliant Radiance?

As a trusted HVAC contractor in Denver, Colorado, Reliant Radiance is known for reliable service, honest recommendations, and expert installation. Our technicians are trained to work with all thermostat systems, ensuring safe, precise, and long-lasting results.


Whether you need a quick thermostat repair or a complete replacement, we’ll make sure your HVAC system responds accurately to your comfort needs.

Schedule Your Thermostat Service Today

Don’t let thermostat problems keep you uncomfortable. Contact Reliant Radiance today for thermostat repair and replacement in Denver, Colorado. We’ll help you stay in control of your comfort — no matter the season.

Frequently Asked Questions (FAQ)

  • How often does my boiler need to be serviced?

    We strongly recommend having your boiler professionally inspected and maintained once a year, preferably in the fall before the heating season begins. This ensures it operates safely and efficiently all winter long.

  • How long should a boiler last?

    A well-maintained boiler can last for 15 to 20 years or even longer. Regular service is the key to maximizing its lifespan.

  • What is the difference between a boiler and a furnace?

    A furnace heats air and distributes it through ductwork (forced air). A boiler heats water and moves it through pipes to radiators, baseboard heaters, or radiant flooring tubes (hydronic heat).

Trust Denver's Boiler Specialists.

For reliable, expert boiler services in the Denver area, contact the team at Reliant Radiance. We’re here to keep your home warm and comfortable.

CALL US TODAY!