How much do thermostat installation companies typically cost?
- Monrovia, California Average$155
- Typical Range$150 - $155
- Low End - High End$50 - $350

Air Conditioning, Indoor Air Quality, Service / Repair , and 2 more
"They are outstanding and do a great job. I use them all the time for my rental properties and I am happy to recommend them."
Richard D. in February 2017

HVAC NEEDS, Plumbing, Performance Air Conditioning , and 1 more
"I recently had the pleasure of working with Authority Plumbing, and I cannot recommend them highly enough. From the outset, they came to my home with a plan that demonstrated their deep understanding of plumbing challenges. Clayton, the technician assigned to my project, was exceptional. He took the time to listen to my concerns and opinions, making sure that I felt heard and valued. He explained each step, ensuring I was comfortable with the plan before proceeding. When a sub-contractor was brought on to streamline the process started making several errors, Clayton quickly took charge of the situation. They fixed these mistakes, alongside resolving my initial drainage issues, at no additional expense, was truly remarkable. The team demonstrated a genuine commitment to ensuring the work was completed to the highest standard. Thanks to their efforts, my plumbing issues have been resolved. I would not hesitate to recommend them to anyone in need of professional plumbing services."
AB684F47244A0CD28AF45256BEB426A4F6473444084C8DE5CE96E4E7803186A5 1. in October 2025
Heat Pumps/Air Conditioning, Indoor Air Quality, Airflow (ductwork) , and 2 more
"Chris arrived on time and completed the work in a timely manner. Helped me set up the system and explained functions. Very professional, courteous, and efficient. I will highly recommend Chris to friends, family and associates."
DB8D6F07601A8AFCFD664ECDAF1B0280974D1B3DBF1D17695958C0165BA29256 5. in December 2025
Monrovia Heating & Furnace Contractors are rated 4.6 out of 5 based on 70 reviews of 70 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
If you're looking for Thermostat Install Contractors that serve a different city in California, here are some popular suggestions:
Smart thermostats give you complete control over your home's temperature. You can program the settings for energy efficiency. With a WiFi-enabled thermostat, you can even change settings from work. When you control your home's temperature down to the degree, your home is comfortable without wasting energy. If you're ready to upgrade to a smart thermostat, find a local installation company that can help.
While installing a thermostat can be a DIY project, when you hire a professional, you get the peace of mind knowing that the job was done correctly - particularly if you are unfamiliar with newer technologies. A professional thermostat installer can quickly replace an old thermostat, integrate it with your HVAC system, and program it to work with other smart home devices. A pro can also teach you how to use the device and help you set it up with the temperature settings you prefer.
A new thermostat gives you fine-tuned control and energy savings. Type in your zip code and HomeAdvisor will connect you with thermostat installation services near you.
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