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Top-Rated Air conditioning pros in Casco - Updated Nov 2026

Avatar for Midpoint Cool Temp
Midpoint Cool Temp
5.0(
31
)
Window A/C Unit - Service or Relocate

Serving Casco, MI and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"As female investor seeking to hiring contractors that are transparent and have high integrity. I hit the jackpot with MIDPOINT COOL TEMP. Robert is passionate and genuine in his assessment and recommends "options to repair" vs immediately replacing a unit. Provided him a key to the vacant home, he got the heating system functioning, cleaned his area, and updated us promptly. FIVE STAR SERVICE all around!!"
Response time2 hrs
Response rate86%
10 neighbors recently requested a quote
Great Lakes Heating and Cooling
5.0(
17
)
Central A/C - Install - For BusinessCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business+1 more

Serving Casco, MI and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Priority Heating and Cooling were professional and their prices were very competitive! I enjoyed working with them. They finished the project in a timely fashion and kept the area very clean while working on our furnace. I would definitely recommend them to anyone looking for a heating and cooling company."
Response time4 hrs
Recommended by100%of homeowners
Avatar for SAFE AIR HVAC LLC
SAFE AIR HVAC LLC
5.0(
6
)
Central A/C - Install

Serving Casco, MI and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"SAFE AIR HVAC LLC did an outstanding job installing my new AC unit and furnace. From the first visit to the final walkthrough, their team was professional, knowledgeable, and extremely efficient. They took the time to explain my options, helped me choose the right system for my home, and provided a very fair price. Installation day went smoothly—they arrived on time, worked cleanly, and made sure everything was set up perfectly. The new system runs quietly and keeps my home comfortable, and the difference in air quality and efficiency is noticeable right away. I was especially impressed with their attention to detail and the care they put into their work. If you need a new HVAC system installed, I highly recommend SAFE AIR HVAC LLC. They truly go above and beyond."
My jobs
My jobs
My jobs
My jobs
My jobs

+3

Response time10 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for EMH Mechanical LLC
EMH Mechanical LLC
5.0(
8
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Casco, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Ethan and team did a great job on swapping out an old boiler system and install new furnace and AC. City inspector even said his work is great. Communication was great throughout the process. Will hire again in the future"
Shop HVAC Upgrade
Shop HVAC Upgrade
Office HVAC Upgrade
Florida Room HVAC
Master Bedroom HVAC

+9

Response time1 day
8 neighbors recently requested a quote
Avatar for Valentine Publications & Repairs
Valentine Publications & Repairs
4.9(
96
)
Window A/C Unit - Service or Relocate

Serving Casco, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"I needed to have my new whole house attic fan motor installed and the gentleman was very nice and did a fine job installing it. Even helped me locate the proper new one so I could order it. He did all that was required and then some."
Ceiling Fans - Berkeley
A/C-Burned Electrical Receptacle  - Clinton Township
Ceiling Fans Project
Diagnose Power Outage - GFCI - Southfield
Pushmatic Circuit Breaker - R&R - Farmington

+263

Response time9 hrs
Response rate100%
Recommended by43%of homeowners
Avatar for Cousins Hvac LLC
Cousins Hvac LLC
5.0(
4
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Casco, MI and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I had an excellent experience with Cousins HVAC LLC! They were very professional, knowledgeable, and reliable from start to finish. They took the time to explain everything clearly, worked efficiently, and made sure everything was done correctly. Their customer service was outstanding, and they truly care about their customers. It’s hard to find a company that is both honest and dedicated to quality work. I highly recommend Cousins HVAC LLC to anyone looking for dependable heating and cooling services. Definitely a 5-star experience!"
A & C Heating & Cooling, LLC
3.5(
2
)
Central A/C - Service or Repair

Serving Casco, MI and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"We were very impressed with A & C Heating and Cooling. Their online scheduling tool was convenient, user friendly, and there was a variety of time slots available. The appointment follow up, reminders and arrival tracking map were timely and helpful. Our technician, McKinley, was amazing!!! He was very courteous, knowledgeable and efficient. He diagnosed the problem quickly, installed the needed part, and ran tests to ensure the unit was running at peak performance. He educated us about our unit by explaining how it operates, what caused the problem, and how the replacement part would remedy the problem. We are VERY satisfied with their service. We give this company and our technician our highest rating, and we would highly recommend them to anyone in need of quality heating and cooling installation or service. ."
Response time3 hrs
Response rate100%
Recommended by100%of homeowners
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Air Conditioning FAQs, answered by experts

The size window AC you need depends on the BTU and the size of the room you’re cooling. For a room with 8-foot ceilings, look for about 20 BTU per square foot of the room. For example, a 12-by-12-foot room should have an air conditioner with 2,880 BTU. You can buy something slightly more powerful, but don’t overshoot the BTU for a small room, or you’ll waste energy and have higher bills.

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

When your HVAC technician mentions recharging your home AC unit, they’re referring to the process of topping off the unit with refrigerant, so the levels are properly maintained and pressurized. Normally, a properly functioning AC unit doesn’t need additional refrigerant, but AC units can develop leaks or other problems that decrease the amount of refrigerant needed.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

The Casco, MI homeowners’ guide to air conditioning services

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