
Serving Barrington, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Prompt arrival and quick service Plus answered all my questions about thermostat replacement"





+1


Serving Barrington, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Prompt arrival and quick service Plus answered all my questions about thermostat replacement"





+1

Serving Barrington, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Credit card accepted
"Nicole came out to see if my furnace could be fixed. She recommended a new install since fixing it would be feasible for a furnace that old. I asked how many BTU's and she sent me an analysis she did. She came for the install on time and it took as long as she estimated it would. She is very knowledgeable and is ok with answering questions for a novice. The price was competitive. Highly recommend."





+2

Serving Barrington, IL and surrounding areas
Approved
In business since 2022
Emergency services offered
Warranties offered
"Val and I spoke on the phone regarding my refrigerator that was leaking water from somewhere. He said he would be able come by between 12-3pm. I appreciated that he texted me with his ETA when he was on his way here. Arrived promptly, diagnosed the problem quickly, had to make a short trip to the Ace Hardware near me to get the correct size valve for the water line. Replaced the valve, tested it, working properly, all set! I'm very grateful that he was able to come out so quickly today and took care of the problem. Very nice serviceman. I will be happy to hire him next time I have any issues!! "




Serving Barrington, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"James was very efficient did the installation without any issues. He was prompt and clean. I would certainly hire him again and will be having him back to do other work for me."





+34

Serving Barrington, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Collin did a great job of installing the whole house humidifier for my heat pump furnace. Very happy with both units. "



Serving Barrington, IL and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Got quotes from several companies and they were far and away the lowest price, next closest was almost $2k more. Guys came in and installed dual furnace and free humidifier in a day. Highly recommend."





+17

Serving Barrington, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Home Advisor connected me w/ AVI Alliance Systems to install my smart thermostat. Andrew contacted me immediately, and was easy to communicate with through text, as I was unable to get on a call. He was able to come by same day and installed my thermostat in less than an hour! He also told me about other things that needed to be changed/fixed in my furnace, and explained everything. I will definitely be using AVI Alliance Systems for all my HVAC needs going forward!"





+40

Serving Barrington, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Warranties offered
"Knowledgeable and creative. Replaced a plasma wireless television. Wiring from the new wall mounted unit required developing a wiring plan and installation of that plan. Connection also involved seamless connection to wall speakers and DVD. allowance and alteration to universal remote to control system. Knowledgeable and friendly. Labor cost fair."





+34

Serving Barrington, IL and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Connected new attic fan, installed by roofer, in place in attic that was difficult to get to. Also very quickly diagnosed and fixed Casablanca fan in bedroom. Honest, ethical, knowledgable, time-efficient, motivated to do quality work. Much more cost effective than competitive contractors."





+24

Serving Barrington, IL and surrounding areas
Approved
In business since 2003
Free estimates
Warranties offered
"I selected this company for several projects in my home based on the wonderful reviews I saw here and I am so very glad that I did! We started with a bathroom that was totally remodeled and replacement of the kitchen counter/sink and replacement of a tile backspash. Next up they repaired the basement staircase/installed a new handrail and refinished the hardwood floors. I was so thrilled with the experience and the results that I brought them back to remove popcorn ceilings and to paint the walls and ceilings. Right now they are finishing up a second bathroom remodel that is also gorgeous. I cannot say enough good about this company. Andy, Anne and Ginger were so very professional, honest and helpful in getting the projects and estimate work orders set up. Each of the tradesmen were also extremely helpful in explaining what was being done ( I am inquisitive) and were there on time and very careful to protect the floors, etc and clean up after completion of the work. Thank you Urmas, Scott, Rein, Virgo and Heath for sharing your finely honed skills with us. It has been a pleasure to work with each of you. Quotes for the work were competitive and any minor concerns I had or add-ons I requested were addressed promptly and fairly. I will be using this company again next year for other projects; no need to look elsewhere, they are trustworthy and wonderfully skilled."





+6
From average costs to expert advice, get all the answers you need to get your job done.

HomeAdvisor’s Thermostat Replacement Cost Guide covers installation costs for mechanical, smart, and programmable thermostats.

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