Can I replace my thermostat myself without professional help?

Yes, you can replace a basic like-for-like thermostat if you’re comfortable with low-voltage wiring. Pro install is best for smart or older systems to avoid power source issues, loose wiring, or calibration problems. We install and replace programmable and smart thermostats with up-front, no-surprise pricing. If it’s near 10 years old, consider an upgrade and inspection.

• Turn off HVAC power.
• Label and photograph wires.
• Stop and call if it cycles or loses power.

Updated: 2025-11-26

Need help in Newark, DE? Call (302) 368-3848 or book online.

"Always a great experience with Boulden Brothers. Today Abe not only did my maintenance but helped me reconnect my thermostat to connect to my phone. Thank you" — Nancy S.