Thermostat and Smart Controls in Greater Denver
Upgrade, replace, or fix your thermostat and smart controls today. Bell’s NATE-certified HVAC pros deliver honest recommendations and flat-rate pricing. We serve the Greater Denver area, including Denver, Aurora, and Lakewood. With a 4.7 rating from 4,155 reviews and nearly a century serving local homeowners, you can expect trusted workmanship and clear guidance. Call (303) 731-5469 to schedule. Seasonal tip: optimize your settings before peak heating or cooling hits. Ask about our offer for a free smart thermostat with a new heating and cooling system.
Special Offers & Promotions
Free smart thermostat with purchase of a heating and cooling system (retail price $249).
- Requires purchase of qualifying heating and cooling system
Why Choose Us
What Our Customers Say
"Wanted to upgrade my 10 year old Honeywell thermostat control system... upgraded quickly and works perfectly."
"Dylan fixed the faulty wiring with the humidifier and installed a new thermostat."
"Chris replaced my thermostat quickly, and explained the functions."
Answers to Common Questions
View All FAQsWhy Is My Smart Thermostat Not Connecting to Wi-Fi?
Smart thermostats often fail to connect when Wi‑Fi setup or wiring isn’t complete, the app isn’t configured, or the device needs a reset. Bell provides turnkey installation in Denver, including compatibility checks, wiring, Wi‑Fi/app setup, testing, and a user walkthrough, and we can troubleshoot connectivity.
- Confirm network name and password in the app.
- Power-cycle the router and the thermostat.
- Check thermostat wiring and power.
- Complete app login and pairing.
- Test again after any changes.
Updated: 2025-12-30 00:00:00
Need help in Highlands Ranch, CO? Call (720) 740-0350 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNoeHJMWFhREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIChxrLXXQ%7CCgsItOyenwYQ2J6xHA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNtcmIyNnZnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgICmrb26vgE%7CCgsImefYjgYQkM6QTg%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUM1dmE3bUtREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC5va7mKQ%7CCgwIt6zqqQYQuKuIhgE%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMxeTRtUGdnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC1y4mPggE%7CCgsIgpzXrAYQwMedHw%7C?hl=en-US[4] https://bellplumbing.com/about/bell-service-membership/[5] https://bellplumbing.com/heating/heating-maintenance/[6] https://bellplumbing.com/heating/[7] https://bellplumbing.com/cooling/ac-installation/[8] https://bellplumbing.com/blog/2024/11/plumbing-maintenance-checklist-for-winter-months/How much does it cost to rewire a thermostat professionally?
Professional thermostat rewiring is priced after an in-home inspection. Your Bell technician will confirm costs on site before work starts with flat-rate pricing. Factors that affect price include whether new control wire must be fished to the furnace or air handler, wall repair needs, and thermostat compatibility. Available in Denver, Highlands Ranch, and nearby areas.
What’s included with smart thermostat installation:
- Compatibility assessment
- Proper wiring connection
- Wi‑Fi/app setup
- Testing and a user walkthrough
Updated: 2025-12-30 00:00:00
Need help in Highlands Ranch, CO? Call (720) 740-0350 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNoeHJMWFhREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIChxrLXXQ%7CCgsItOyenwYQ2J6xHA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNtcmIyNnZnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgICmrb26vgE%7CCgsImefYjgYQkM6QTg%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUM1dmE3bUtREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC5va7mKQ%7CCgwIt6zqqQYQuKuIhgE%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMxeTRtUGdnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC1y4mPggE%7CCgsIgpzXrAYQwMedHw%7C?hl=en-US[4] https://bellplumbing.com/about/bell-service-membership/[5] https://bellplumbing.com/heating/heating-maintenance/[6] https://bellplumbing.com/heating/[7] https://bellplumbing.com/cooling/ac-installation/[8] https://bellplumbing.com/blog/2024/11/plumbing-maintenance-checklist-for-winter-months/How much does it cost to replace a thermostat professionally?
Professional thermostat replacement cost varies by thermostat type (standard vs. smart) and your HVAC setup. A Bell technician confirms flat-rate pricing after an on-site assessment. Installation includes compatibility check, proper wiring, Wi‑Fi/app setup, testing, and a user walkthrough. Bell Perks Club members get 20% off service work. You can also get a free smart thermostat (retail $249) with a new heating and cooling system purchase. We serve Denver and nearby cities like Highlands Ranch.
Updated: 2025-12-30 00:00:00
Need help in Highlands Ranch, CO? Call (720) 740-0350 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNoeHJMWFhREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIChxrLXXQ%7CCgsItOyenwYQ2J6xHA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNtcmIyNnZnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgICmrb26vgE%7CCgsImefYjgYQkM6QTg%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUM1dmE3bUtREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC5va7mKQ%7CCgwIt6zqqQYQuKuIhgE%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMxeTRtUGdnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC1y4mPggE%7CCgsIgpzXrAYQwMedHw%7C?hl=en-US[4] https://bellplumbing.com/about/bell-service-membership/[5] https://bellplumbing.com/heating/heating-maintenance/[6] https://bellplumbing.com/heating/[7] https://bellplumbing.com/cooling/ac-installation/[8] https://bellplumbing.com/blog/2024/11/plumbing-maintenance-checklist-for-winter-months/Can I replace my thermostat myself without professional help?
Yes, some homeowners replace a thermostat themselves, but we recommend professional installation to ensure compatibility and proper setup. Our Denver-area team provides turnkey service: system compatibility assessment, careful removal, correct wiring, Wi‑Fi/app setup, thorough testing, and a personalized walkthrough. We also handle repair, replacement, and troubleshooting as part of HVAC service. If you’re upgrading equipment, ask about our Free Smart Thermostat with a new heating and cooling system (retail $249; terms apply).
Updated: 2025-12-30 00:00:00
Need help in Highlands Ranch, CO? Call (720) 740-0350 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNoeHJMWFhREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIChxrLXXQ%7CCgsItOyenwYQ2J6xHA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNtcmIyNnZnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgICmrb26vgE%7CCgsImefYjgYQkM6QTg%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUM1dmE3bUtREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC5va7mKQ%7CCgwIt6zqqQYQuKuIhgE%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMxeTRtUGdnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC1y4mPggE%7CCgsIgpzXrAYQwMedHw%7C?hl=en-US[4] https://bellplumbing.com/about/bell-service-membership/[5] https://bellplumbing.com/heating/heating-maintenance/[6] https://bellplumbing.com/heating/[7] https://bellplumbing.com/cooling/ac-installation/[8] https://bellplumbing.com/blog/2024/11/plumbing-maintenance-checklist-for-winter-months/Can I repair a thermostat myself or should I hire a professional?
You can adjust schedules or app settings yourself, but repairs or replacements that involve wiring, compatibility checks, or system integration should be handled by a professional. Our certified technicians assess HVAC compatibility, remove the old thermostat, make proper wiring connections, set up Wi‑Fi and the app, test operation, and provide a user walkthrough. We also troubleshoot thermostat controls as part of HVAC service. Professional installation helps ensure accurate control and reliable smart features across your system in Denver, Aurora, and Highlands Ranch.
Updated: 2025-12-30 00:00:00
Need help in Highlands Ranch, CO? Call (720) 740-0350 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNoeHJMWFhREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIChxrLXXQ%7CCgsItOyenwYQ2J6xHA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNtcmIyNnZnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgICmrb26vgE%7CCgsImefYjgYQkM6QTg%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUM1dmE3bUtREAE!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC5va7mKQ%7CCgwIt6zqqQYQuKuIhgE%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMxeTRtUGdnRRAB!2m1!1s0x0:0xc7725e3070bf249a!3m1!1s2@1:CIHM0ogKEICAgIC1y4mPggE%7CCgsIgpzXrAYQwMedHw%7C?hl=en-US[4] https://bellplumbing.com/about/bell-service-membership/[5] https://bellplumbing.com/heating/heating-maintenance/[6] https://bellplumbing.com/heating/[7] https://bellplumbing.com/cooling/ac-installation/[8] https://bellplumbing.com/blog/2024/11/plumbing-maintenance-checklist-for-winter-months/
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Where We Work
What areas do you serve for thermostat and smart controls?
We serve the Greater Denver region, including Denver, Aurora, and Lakewood. See the complete city list below for full coverage.