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TRUSTED BY DEKALB, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon100
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Dekalb

Avatar for G & R Heating & Air
G & R Heating & Air
4.6(
133
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Dekalb, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"I had a great experience with their HVAC services. They repaired my electrical baseboard heater quickly and made sure everything was working perfectly before leaving. The team was professional, punctual, and very knowledgeable. They also installed our new central A/C system smoothly with no issues at all. Communication was clear throughout the process, and the pricing was fair. Highly satisfied with the quality of work and customer service. I would definitely recommend them for any heating or cooling needs."
Additional Photos
Additional Photos
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+20

Response time11 hrs
Response rate100%
74 neighbors recently requested a quote
Avatar for Perfect Temp Heating & Cooling
Perfect Temp Heating & Cooling
4.6(
198
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Dekalb, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I called at 2 pm that my furnace would run but blow cold air, no heat. I am disabled land no heat causes me a lot of pain. The dispatcher set appt for 3-3:30 pm. The owner Brett was here by 3:30. He found and fixed the problem by 4 pm. He explained what he had replaced. He was extremely nice. I would recommend Perfect Temp to anyone who needed HVAC work."
Duct Cleaning
Duct Cleaning
Duct cleaning
Duct cleaning
Duct cleaning

+79

Response time10 hrs
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Summers, Plumbing, Heating & Cooling - Yorkville
Summers, Plumbing, Heating & Cooling - Yorkville
5.0(
15
)
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Service or Repair+14 more

Serving Dekalb, IL and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

At Summers Plumbing Heating & Cooling we try to make service easy & fast! With all of our locations there is a good chance we're helping someone in your neighborhood with their plumbing, heating or cooling issues. We take the stress out of calling a repairman! Our friendly, helpful, and honest technicians are here to make your life easier, not harder than it already is.\n\nOur highly skilled, licensed, and trained technicians perform superior work, every time. We are committed to being honest, thorough, and friendly when we arrive at your house for an estimate or repair.

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 Dekalb, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Very professional and great communication. The HVAC Tech answered all my questions, and completed the cleaning and maintenance very quickly. He even took the time to build a p-trap into the drain pipe from the furnace where there hadn't been one, but it definitely should have been there. No more gurgling from the drain pipe anymore. I couldn't ask for more."
Project Photos
Project Photos
Project Photos
Project Photos
Project Photos

+15

Response time5 hrs
Response rate100%
4 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 Dekalb, IL and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I had an excellent experience with this HVAC company! They installed 3 central A/C units in my building, and everything was done professionally and efficiently. Special thanks to Angel and Martin for their great work, professionalism, and attention to detail. Highly recommend!"
Boiler Replacement
Response time9 hrs
Response rate87%
24 neighbors recently requested a quote
Avatar for Delta Heating & Air
Delta Heating & Air
4.3(
3
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+14 more

Serving Dekalb, IL and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

Committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Hillside furnace repair
Hillside furnace repair
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Heating and Air Conditioning questions, answered by experts

When faced with HVAC issues, it's best to begin by ensuring the thermostat settings are correct for either heating or cooling. If the system isn't responding, check the thermostat for proper function and power supply. It's also important to examine air filters, as clogged ones can decrease performance. Confirm the power supply to the system by checking the circuit breakers and fuses. If these basic steps fail to resolve the issue, contact an HVAC professional for a more detailed diagnosis and repair.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

You should clean your air conditioner at least once per year, but you may need to clean your whole HVAC system (including the air ducts) more often. According to the National Air Duct Cleaners Association, you may need to clean them more frequently depending on factors like whether you smoke, have pets, or have allergies.

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

Professional HVAC installation requires licensed expertise in several areas, including electrical- and plumbing-related work. An HVAC team must know how to safely handle regulated refrigerant chemicals and the gas, oil, or propane used in furnaces and boilers. A proper HVAC installation protects your home from energy loss, fires, and even carbon monoxide leaks.

The Dekalb, 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.