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TRUSTED BY ROCHESTER, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon100
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Rochester - Updated Nov 2026

Avatar for Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
357
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallAir Ducts & Vents - Clean+12 more

Serving Rochester, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"My technician Keith was great. Friendly and super informative. Also too a quick look at the entire drainage system and gave my an idea of where problems will pop up the future without preventative measures (my home was built in the 50s and while the previous owners took really good care of the house nothing has been gutted and replaced yet)."
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+5

300 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Ask Michael Renovations, LLC
Ask Michael Renovations, LLC
4.6(
32
)
Ductless Mini-split A/C - Install or ReplaceThermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Rochester, IL and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"I cannot sing enough praises about Ask Michael. I hired them to repair drywall in my kitchen and bathroom ceiling in preparation of listing our house for sale. They were so courteous and professional. They finished the job is just a few days and both areas look amazing. I will definitely call them for projects in the new house"
Response time1 day
18 neighbors recently requested a quote
Recommended by89%of homeowners
Affordable Home Repair
5.0(
4
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Rochester, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"John and his helper Nathan did an excellent job!! They arrived when they said they were going to an hung a 65 inch tv and a 50 inch tv with no problem at all! The job was done in a timely manor. Both were very professional and friendly! The price was reasonable too!! I would highly recommend and trust the work of Affordable Home Repair for any job! Just an fyi…I told him I would take care of cord hanging down."
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Response time2 days
Response rate100%
1 neighbors recently requested a quote
Bakers HVAC Solutions Co LLC
New to Angi
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Service or Repair+23 more

Serving Rochester, IL and surrounding areas

Approved

We are native to central Illinois and deeply rooted in faith and family. We thrive on helping property owners maintain their investments by providing quality workmanship. With more than 20 years of experience in residential and commercial property maintenance, we are well aware the problems property owners in central Illinois face. We are your go to for nearly everything from the foundation to the roof and anything in between with a specialty in HVAC. We would love an opportunity to help you find a solution for all of your property needs.

Emily Merrill
New to Angi
Air Ducts & Vents - Clean

Serving Rochester, IL and surrounding areas

Approved

I have necessary professional cleaning qualities like mopping, dusting, organizing, folding, and changing anything that can be made to enforce a tidy home. Though I have not had any cleaning jobs, I am 18 and have a thorough passion for cleaning and tidying items sufficiently and quickly. I can assure you that I am very skilled in the realm of cleaning and would love a chance to express my deep profoundness for it at your company. \n\n- Emily Merrill

Avatar for Bob Bergen Heating & Refrigeration
Bob Bergen Heating & Refrigeration
4.7(
89
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+8 more

Serving Rochester, IL and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"They are the absolute best in the area. They had to order a part and still got the job done in under 8 days. Calvin had great communication line telling me exactly what needed to be replaced and the status of the job. They will be taking care of all of my future HVAC needs. Best company in the Springfield area!!"
Response time4 hrs
Recommended by97%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

Running a window air conditioner unit costs about $0.06 to $0.88 per hour. Choosing the correct size air conditioner can help it run more efficiently.

The Rochester, IL homeowners’ guide to heating and air conditioning services

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