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TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon148
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Cortland

Avatar for G & R Heating & Air
G & R Heating & Air
4.6(
136
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Cortland, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"I had a great experience with G & R Heating & Air! They handled multiple services for me, including repairing my wall heater and servicing my central A/C, and everything was done professionally and efficiently. The team was punctual, knowledgeable, and explained each step clearly."
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+20

Response time11 hrs
Response rate100%
100 neighbors recently requested a quote
Avatar for Rest Assured HVAC, LLC
Rest Assured HVAC, LLC
4.9(
16
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+11 more

Serving Cortland, IL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"When our air-conditioning went out during a stretch of 90 plus degree weather, Jeff answered our call and came out the same day to fix our unit! He also followed up to ensure we were satisfied with his service. We could not be more pleased with his service!"
Amana Gas Furnace
Amana Heat Pump
Response time5 hrs
Recommended by50%of homeowners
Avatar for GreenLink Energy Solutions, Inc.
GreenLink Energy Solutions, Inc.
4.7(
60
)
Ductless Mini-split A/C - Install or Replace

Serving Cortland, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"In October of 2024 I had the most excellent good fortune to work with Greenlink Energy Solutions as part of an ComEd Home Energy Efficiency project that included replacement of the furnace/a.c. and water heater, as well as top to bottom weatherization of my house. Even before the project started both Olivia and Jarron took the time to answer any questions and address any concerns I had regarding the equipment being installed and the overall scope of the project. Day 1, first up was a couple of electrical guys, quickly followed by Jarron and his HVAC team, Ben & Ryan. All on time and ready to get to it. Professional, pleasant and remarkably tolerant of my nonstop questions about the systems, the guys went to work and, other than a quick lunch break, worked nonstop, not particularly concerned about the clock but more about getting to a reasonable stopping place for the day. By the time they were finished, everything was operational, square and plumb, all pipes, valves, duct work and conduit looking very slick, orderly and professional. (5 stars just on the sheet metal work alone). Next up was the weatherization team with Nick leading the charge. Again, on time and ready to go. These guys, Zarek, Steven and Danial, came in with a plan and went right two it, peeling off to address varying issues and again, once on the ground it was go time for these guys. Remarkably, all willing and ready to jump in to even the less desirable parts of the project (like who really wants to go into a hot attic and crawl around in the corners? But they did it and with no hesitation or whining). Over all there were several things that impressed me about the Greenlink teams. There is the obvious stuff, like the punctuality and, remarkably, the through cleanup at the end of each day, and also the obvious work ethic, mutual respect amongst the team members and easy and informative communication with me. I think what was the most reassuring though, you could see the obvious pride the Greenlink people take in their work and, just as importantly, the obvious pride they take in working as part of the Greenlink team. That says a lot. I would not hesitate to recommend Greenlink Energy Solutions to anyone. I suspect my neighbors are already tired of hearing about how good they are."
Infrared Light Switch
Combustion Test
Water Heater Combustion Test
Cellulose Insulation Installation
Air Sealing Can Lights

+12

Response time1 day
4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Miracle Mechanical Corp.
Miracle Mechanical Corp.
5.0(
15
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Repair+4 more

Serving Cortland, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"From start to finish, the HVAC installation went smoothly. The crew arrived on time, protected our floors, and explained each step of the process in plain language. They completed the job quickly, cleaned up thoroughly, and walked us through how to use and maintain the new system. The new unit runs quietly, cools/heats the house evenly, and has already made a big difference in our comfort and energy bills. I would absolutely recommend them to anyone needing a new HVAC system."
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+15

Response time5 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Improved Comfort Heating & Air Conditioning
Improved Comfort Heating & Air Conditioning
5.0(
9
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+1 more

Serving Cortland, IL and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Angel and Tyler worked their butts off to help us with our air conditioning. They unfortunately had to do way more work than expected, however they were at our house late and always stayed in communication on what was going on. They did a great job and were very detailed and thorough with all testing making sure that the job was done right and there were no issues. We had a great experience!"
Boiler Replacement
Response time9 hrs
Response rate87%
25 neighbors recently requested a quote
North South Heating and Cooling
New to Angi
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+15 more

Serving Cortland, IL and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n

5 neighbors recently requested a quote
Zorana
New to Angi
Air Ducts & Vents - Clean

Serving Cortland, IL and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Offers commercial services

I’m a reliable and detail-oriented house cleaner with 3 years of hands-on experience providing high-quality cleaning services. I’ve worked in a variety of homes, handling everything from routine maintenance cleanings to deep cleans, move-in/move-out jobs, and organizing spaces to leave homes spotless and refreshed. I service Chicago north-western suburbs and nearby communities. I’m flexible and willing to travel to meet clients’ needs.\n\nMy skills include thorough kitchen and bathroom cleaning, dusting, vacuuming, mopping, deep cleaning, and paying close attention to detail in every space I work in. I take pride in being efficient, trustworthy, and respectful of each home.\n\nI focus on delivering consistent, high-quality results and making sure every client is satisfied. If you’re looking for someone dependable who will treat your home with care and leave it looking its best, I’m ready to help.

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Heating and Air Conditioning questions, answered by experts

Keeping your air filter clean is crucial for your heat pump's efficiency. As a general rule, you should check your air filter every 1 to 3 months. However, the actual frequency might vary depending on factors like the type of filter, indoor air quality, and the amount of dust and debris in your area. If you notice the filter is visibly dirty or clogged, it's a clear sign it needs attention sooner. Regular filter maintenance ensures proper airflow and helps your heat pump perform optimally, keeping your indoor air fresh and comfortable.

No, heat pump maintenance needs are very similar to air conditioners, including keeping outdoor units clean, changing filters regularly, and occasionally scheduling a refrigerant check to see if any has leaked out. Heat pumps typically switch automatically between heating and cooling, so you don’t need to worry about manually changing them every season. However, since they are always on call, they can develop wear and tear faster than an air conditioner.

Both evaporator coils and condenser coils are recyclable and contain valuable, sellable metals such as copper and aluminum. Not only is it more earth-friendly to take them to a local metal recycling facility, but you can also trade them in for cash. Also, once the coils are removed from the system, they won’t have any traces of refrigerant, so you won’t have to arrange for recycling Freon or R-410A unless you’re disposing of the entire AC system.

Yes. It's not just AC filters that get dirty. Ducts can accumulate dust and dirt quickly. Insects and animals can also get into duct systems, creating many problems. Dirt build-up and unwanted guests can constrict the airflow and cause rooms not to cool evenly. You might also see higher energy bills because they're not working as efficiently.

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

The Cortland, 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.