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TRUSTED BY DONALD, OR HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon806
    Verified heating and air conditioning services reviews

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

Avatar for HomePro Heating + Air
HomePro Heating + Air
5.0(
11
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+1 more

Serving Donald, OR and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Home Pro Heating and Air did an excellent job fixing my A/C. From the moment I called, they were professional, responsive, and straightforward. The technician arrived on time, diagnosed the issue quickly, and explained everything in a way I could understand. The repair was done efficiently, and my air conditioning has been running perfectly ever since. Their pricing was fair, and the level of service was outstanding. It’s rare to find a company that’s both honest and highly skilled, but Home Pro proved to be both. I’m extremely satisfied and would absolutely recommend them to anyone needing HVAC work."
Furnace repair
Barclay st
New het pump install
System Diagnostic
Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for AIR CONTROL SYSTEMS, INC
AIR CONTROL SYSTEMS, INC
4.5(
14
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Donald, OR and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"WOWWW! Above & beyond service, courteous & knowledgeable technician, and fair pricing... what more could you want?! I contacted Air Control Systems via Angie's List and (literally) within minutes received a phone call. They were able to send a technician out that same day (rare in todays service industry!) at no extra charge. Nathan was very personable yet prompt. He fixed the issue, while also checking everything else out to ensure peak performance moving forward. The cost was very fair, and I will not be using ANY other company for HVAC issues in the future! Outstanding!"
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Bryant Authorized Dealer

+1

15 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Northwest Duct Services
Northwest Duct Services
4.8(
50
)
Air Ducts & Vents - Clean

Serving Donald, OR and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jesus did a wonderful job. Our ducts hadn't been cleaned in forever; dirt and dust would fly constantly ever time the furnace came. Fast, efficient service. Excellent price, senior and veteran discount. Highly recommend this to anyone who is needing this service."
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+1

5 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Evergreen Gas LLC
Evergreen Gas LLC
4.8(
176
)
Central A/C - InstallDuctless Mini-split Heating System - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+1 more

Serving Donald, OR and surrounding areas

Approved (Corporate)

In business since 2003

Free estimates

Emergency services offered

"I've worked with Evergreen since we purchased our home in 2020. They've done a multitude of projects for us, the most recent being installing an entirely new HVAC system (two units inside and out). They are on time, friendly, courteous, and very professional. They even put up with our rather high-strung little poodle. We had multiple companies bid our job, and we chose Evergreen both because we knew they would do a good job and stand behind their products. We also knew they would be great folks to have in our home doing work. It's never easy when contractors are in your living space, but they make it as pleasant as it can be. Thanks to Shaun and his team for doing such a great job for us, many times over!"
Recommended by94%of homeowners
Avatar for Advantage Heating & Air Conditioning, LLC
Advantage Heating & Air Conditioning, LLC
4.9(
44
)
Central A/C - InstallHeat Pump - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Donald, OR and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"In this day and age you do not find the level of care and concern that Advantage provided. The services person was responsible for coming out the day after Thanksgiving on 4 hours notice. The salesman followed him in the evening when I decided to replace my entire system. The system installers were on time, easy to work with and very competent, The techs that rerurned to clean my and inspect my existing ducts were on time and awesome young men! I highly recommend this company."
Old Furnace
New Furnace
New Ducting
Furnace Maintenance
Technician Inspects An AC

+7

Response time11 hrs
13 neighbors recently requested a quote
Recommended by97%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

The standard HVAC warranty is around five years. Still, many brands offer an extension to 10 years if you register the product within a specific timeframe, typically 60 to 90 days post-purchase or HVAC installation. Over the past decade, warranty periods have substantially increased, shifting from 3-5 years in the 90s to the now-prevalent 10+ year warranties. Both warranty types cover parts failing due to manufacturer defects, incurring no additional costs. Some manufacturers provide extended warranties surpassing the usual 15- to 20-year window, though these often involve extra fees. 

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers, or ASHRAE, sets the standard guidelines for air changes per hour in homes and businesses. The International Residential Code, or IRC, also sets ACH requirements for residences and bases those requirements off of ASHRAE standards plus climate specifics related to your location.

The Donald, OR 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.