*The Angi rating for Nest Installation companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
*The HomeAdvisor rating for Nest Installation companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
Last update on May 27, 2026
Serving O Fallon, MO and surrounding areas
Approved
In business since 2009
Warranties offered
Credit card accepted
"They were professional from the phone call to the installation. He had everything he needed to replace the hot water heater and proceeded. I would definitely recommend Hosack Plumbing."
+2
Serving O Fallon, MO and surrounding areas
Approved (Corporate)
In business since 2010
Free estimates
Emergency services offered
"Peace of mind at last! Joffre was wonderful explaining everything and even came over to our home during install to answer any further questions. Pat was an excellent installer and we can finally be rest assured that we are safe at home and away. Thanks again Alarm Protection Group!"
+1
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 1998
Free estimates
Warranties offered
"pet door installed, outdoor light fuxture replaced, shower head replaced, pet gate installed, caulking, misc. other jobs"
+19
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Emergency services offered
Small jobs welcome
"Excellent job. He was on tine and quickly repaired our stuck front door. I will save his name for any future handyman jobs needed"
+1
Serving O Fallon, MO and surrounding areas
Approved
In business since 1947
Free estimates
Emergency services offered
"Great Experience. I was concerned about the 22 yr age of our air conditioner able to keep working and wonder if a long wait time to get a product shipped like refrigerators last year, I called for a quote and within a week it was installed and working! Installers worked tirelessly until their work was done, clean and neat!"
+2
Serving O Fallon, MO and surrounding areas
Approved
In business since 2001
Free estimates
Small jobs welcome
"There was a problem with the first installer that did not show back up to complete the installation I placed a call to the owner and he immediately sent another installer and he finished the job and got everything working. Everything is working fine"
+35
Serving O Fallon, MO and surrounding areas
Approved
In business since 1976
Free estimates
Emergency services offered
"Very quick and courtious installers. They answered my questions even on other projects they were not working on at the time."
Serving O Fallon, MO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"He arrived around the time discussed. He was very professional and courteous. He explained all of the different options and explained the procedures. I really like this company. Everyone is really courteous and helpful. The installation had to be sub contracted out. The person who did the installation was on time and did a good job."
+18
Serving O Fallon, MO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1874
Free estimates
Emergency services offered
"I had a wonderful experience with the Protect Your Home - ADT Authorized Dealer. Sam installed the system at my home and was very helpful and did a great job with both the wiring and wireless installations. I would highly recommend ADT and Sam for security alarm installation."
+35
Serving O Fallon, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Very informative and detailed. Parts we needed not in stock we just couldn’t wait due to extreme heat conditions. Other than that I would highly recommend"
The average cost of a home security system is about $700, ranging from $280 to $1,150. Costs to consider include equipment, surveillance fees, and other additional features. Cost factors that determine your system’s price include the type of security system, materials, labor, activation fees, monthly fees, and permits. Additional features and upgrades may include:
Video surveillance monitoring: $40–$65 per month
Smart home locks: $150
Smart home lighting: $15–$90
Smart smoke, fire, and carbon monoxide alarms: $35–$100
Smart thermostat: $130–$500
Yes, you should get a quote or an estimate from an electrician. Most electricians offer free estimates or quotes. When getting quotes, do your research and verify each electrician’s license. Get quotes from three different electricians to compare. If the prices or items listed appear different on the quotes, ask the electrician to clarify. Learning as much as you can about the electrical work you want done will help you get the most accurate estimate.
Yes, a home security system can be worth it for your peace of mind alone, but it can also save you up to 20% on your home insurance. The insurance savings will help defray the initial setup costs and subscription costs over time. Locations with higher crime rates also make home security systems a valuable investment, but it ultimately depends on your personal preferences and asset values.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
Qualified, licensed electricians will charge from $50 to $100 per hour. The cost to hire an electrician for emergency visits may range from $100 to $200 per hour because this urgent service usually takes place during off hours and may require an electrician to leave or reschedule jobs they’re currently working on. Scheduling work on holidays or during periods of high customer demand, like after a major storm, will also lead to higher rates or extra fees.
From average costs to expert advice, get all the answers you need to get your job done.
If you have a serious rodent problem, you may need to know the cost of hiring a rat exterminator. We can help you estimate costs in St Louis, MO.
Read our tips to understand the key factors involved in dryer vent cleaning costs in St. Louis, MO, including vent length and where it's located.
The cost to install a whole-house generator in St Louis, MO varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
Lattice panels can give your home a polished look and hidden storage. Learn how to install lattice under a deck or porch with this step-by-step guide.
Follow this step-by-step guide to learn to install bifold doors yourself. For exterior bifold doors, hire a pro to ensure insulation and security.
Discover effective methods for how to get rid of birds. From cleaning your yard to adding decoys, learn about humane strategies to shoo avian guests.
