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    Average homeowner rating
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    Verified nest installation services reviews

Top-Rated Nest installation pros in Covina - Updated Nov 2026

Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
46
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Covina, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Trinity Heating installed a new thermostat in my house. The technician, Jimmy, was professional and courteous. After the installation he took the time to explain to me how to set up and use the new thermostat. I’m completely satisfied with their service and will use them again if needed."
Furnace Before
AC After
Furnace After
AC Before
Before - Furnace

+83

Response time3 hrs
Response rate98%
29 neighbors recently requested a quote
Avatar for Penguin Heating and Air Inc
Penguin Heating and Air Inc
5.0(
15
)
Thermostat - Install or Replace

Serving Covina, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Very knowledgeable, professional, and great customer service! Penguin, serviced our central AC & Heat and they explained everything to us before performing the work. They also replaced our moldy insulation in our attic. They packed and transported the old moldy insulations, ensuring that the mold does not spread, and they left our house free of any mess. I'd recommend Penguin Heating and Air to anybody in need of AC/Heat service, repair, or installation."
Diamond Bar
Diamond Bar
Diamond Bar
Furnace Install
AC Condenser

+6

Response time2 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for RS Air Conditioning & Heating
RS Air Conditioning & Heating
4.9(
23
)
Thermostat - Install or Replace

Serving Covina, CA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Ray was very responsive and professional since my first contact with him. He came out early the next day to diagnose my broken AC and walked me through the testing stages and explained what he was doing, how it works, and why. He tried several methods to get the system up and running but ultimately, we had to replace the old unit. Since we were in a 100 degree heatwave, Ray was mindful of our situation and came early the next day to install the new unit within an hour. Very fortunate to have a seasoned professional like Ray to help us amidst the heat and Covid. I would highly recommend him to anyone looking for central AC work."
New Outdoor Install
Furnace Install
Satisfied Client
Energy saver!
Carrier Water Soure

+2

Response time3 hrs
Response rate100%
Recommended by100%of homeowners
AWC HVAC Services, Inc.
4.1(
8
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Covina, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

AWC HVAC Services are the experts you need to take care of all of your HVAC needs. We handle everything from installations to repairs. We will treat your home as we would treat our own. Give AWC HVAC Services a call today, we look forward to working with you!

Response time9 hrs
Recommended by83%of homeowners
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Nest Installation FAQs, answered by experts

Due to the high temperatures used during heat treatments, many things must be removed from the area. The most vital things to ensure you remove are living things like pets and plants. To prevent damage to your belongings, you should also remove items such as electronics, flammable products, food, and anything else that the heat may damage.

Don’t count on squirrels leaving on their own. Squirrels like the safety that a cozy attic provides and won’t be in a hurry to leave, especially if they’ve recently given birth to a litter. It’s best to address the situation with DIY removal tactics or hire a squirrel removal pro as soon as you suspect squirrels are living in your attic.

You're more likely to find a hobo spider outside rather than inside your home. If you do find one in your home, don't panic. You can remove the spider by catching it in a glass or cup and transporting it outside. You may also vacuum up the spider and remove it by emptying the vacuum bag. 

If you notice more than one spider, it may be a good idea to hire a local pest control company to check out the situation and recommend a course of action. 

Foxes hate strong scents and sudden disturbances. They dislike the smell of ammonia, vinegar, garlic, chili peppers, and predator urine, which can make an area less appealing. Motion-activated lights and sprinklers also unsettle them, as foxes prefer to avoid sudden movements and bright lights. Additionally, they are wary of loud noises and unexpected sounds.

You may find fleas in your bed if they followed you there on your pet or your clothing. While they will need you or an animal as a host, they can hide in bedding since it is warm and out of sight. If you spot signs of fleas or see live fleas in your bed, hire a flea control specialist immediately to eradicate the infestation and prevent it from spreading further.

The Covina, CA homeowners’ guide to nest installation services

From average costs to expert advice, get all the answers you need to get your job done.