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TRUSTED BY DUNCAN, OK HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon39
    Verified heating and air conditioning services reviews

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

Avatar for D & R Heating & Air
D & R Heating & Air
4.8(
9
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+14 more

Serving Duncan, OK and surrounding areas

Approved

In business since 1981

Free estimates

Warranties offered

"There is no other company I'd rather have installing and servicing my air condiition needs. I've been working with Ray and his family for over ten years. I know I call always count of them. I can call them and explain what I'm encountering and they know exactly what is happening and how to fix it. I wil say that five starts or a ten out of ten rating isn't enough. This company is head and shoulders above the competition. A top notch company who carees about their customers. I highly recommend them to anyone."
Tips & best bets
Tips & best bets
Tips & best bets
Tips & best bets
Tips & best bets

+40

Response time9 hrs
17 neighbors recently requested a quote
Recommended by55%of homeowners
Superior Tile Designs & Renovations LLC/Handyman
4.7(
40
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Duncan, OK and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"This project involved a 1972, three bedroom house, that I was in the process of rehabbing. Due to it's age, there were lots of problems, big and small, that had to he solved. Because of Mike's many skills, including tile, electrical, plumbing and mechanical, he could do everything I asked him to do quickly, and exceeding all my expectations. I've already given Mike's name to two other Real Estate Investors. But don't be concerned, Mike will always took time to care for prior client's emergencies."
Response time2 days
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for AEGIS Service and Repair Co LLC
AEGIS Service and Repair Co LLC
5.0(
4
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairOil Furnace / Forced Air Heating System - Repair

Serving Duncan, OK and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Quick response and kept me updated on status of repair. Have used Aegis twice after follow up for a second opinion. By far best HVAC I’ve used. Fast , effective and only does work that is needed. Aegis will be my first call going forward. Thanks to Michael and his team!"
Project Photos
Furnace and AC change out
Furnace and AC change out
Furnace and AC change out
6 neighbors recently requested a quote
Avatar for All Tech Air Conditioning
All Tech Air Conditioning
3.9(
12
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+6 more

Serving Duncan, OK and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Josh was the tech that came out. He was very professional and clean. He was courteous and on time. He spoke clearly about what was going on with the A/C. He had everything he needed right then and there to find out what was wrong. Also, the problem should be fixed in about 2 days which is super fast compared to my experience with other repair companies. I would defiantly recommend."
New A/C Install
New 3 ton system
New 3 ton system
New 3 ton system
Spring maintenance on an air conditioner

+10

Response time8 hrs
Recommended by57%of homeowners
Avatar for L & L Housekeeping Service
L & L Housekeeping Service
New to Angi
Air Ducts & Vents - Clean

Serving Duncan, OK and surrounding areas

Approved

I've been a housekeeper for over 20 years. I have done residential and commercial cleaning as well as move outs and post construction clean up. I pay attention to detail and get the job done in a timely manner. I am a registered nurse and I work part time.

alliance group inc
New to Angi
Air Ducts & Vents - Clean

Serving Duncan, OK and surrounding areas

Approved

Family-owned & operated general contractor in Frisco, TX – serving the DFW and surrounding areas for 20+ years. We handle residential or commercial remodeling, interior and exterior roofing, fencing even any additions. With prompt/clear communication, honest pricing, and quality craftsmanship. Licensed, insured with an A+ BBB rating.\n\nI look forward to helping you with any rehab or construction projects, thank you!

Avatar for J & J Burk Mechanical Contractors, Inc.
J & J Burk Mechanical Contractors, Inc.
4.8(
92
)
Air Ducts & Vents - CleanDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+1 more

Serving Duncan, OK and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"AC went out on a holiday weekend, George kept me updated as to when I could expect him , George was knowledgeable, fixed my AC within minutes, he Took the time to answer any questions & explain what went out and how my system works. Customer service was great! I highly recommend this company!"
Response time2 days
Recommended by93%of homeowners
Avatar for Chad's Heat And Air
Chad's Heat And Air
5.0(
6
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Duncan, OK and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Found out I needed to replace 5 ton heat pump on the 16th. I priced 13 other company's within 50 miles of my business. The price for the pump and installation was $1,OOO.OO CHEAPER PLUS the service was 1 day. They had it in stock, didn't have to order it, and I got a 5yr warranty plus 1yr labor. I couldn't ask for better price or service!!!!!"
Storefront
Truck
Recommended by100%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

If your whole house is cold that’s one thing, but what if you only have a few rooms that are cold? First, you need to determine why this may be happening. A good place to start is to investigate the potential causes listed in this article—heat transfer, airflow, thermostat problems, humidity, and insulation. Once you’ve narrowed down the issue, you’d apply the same principles to the cold rooms as you would to the entire home.

Replacing an HVAC system does not always include new ductwork. The decision depends on the condition of your existing ducts. If they are in good shape, correctly sized for the new unit, and meet current standards, they can often be reused. However, if the ducts are damaged, poorly designed, or improperly sized, they will likely need to be replaced or upgraded to ensure the new system operates efficiently. An HVAC contractor will assess your ductwork and recommend the best course of action. Typically, ductwork is purchased separately, and a full replacement will add to the overall project cost.

No, you should not run an air conditioner with a Freon leak. If you think your AC unit is leaking refrigerant, shut it off immediately. When you keep using a leaky air conditioner, it could damage the unit and release more refrigerant. After turning off the AC, have an HVAC pro come take a look at the unit.

Set your house temperature between 55 and 85 degrees Fahrenheit while on vacation, depending on the season. If it’s winter, don’t go below 55 degrees. In the summer, the best AC temperature for energy savings is no higher than 85 degrees. You can save anywhere from 10% to 15% on your energy costs by adjusting the temperature while you’re away. If you have a smart thermostat, set up vacation modes for each season. On your way home, turn off vacation mode to allow the home to warm up or cool down before you arrive.

The Duncan, OK 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.