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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon69
    Verified heating and air conditioning services reviews

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

Integrity Furnace & Duct Cleaning
4.9(
158
)
Air Ducts & Vents - Clean

Serving Annandale, MN and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"We were very impressed with Mike and his team. They were prompt, communicative and professional. We had not had our ducts cleaned for a considerable time and it showed! Integrity took before and after pictures to show their work and they did a phenomenal job. They also gave us pointers for things to watch for. We will definitely be using them again in the future and make this a part of our regular annual routine."
Response time2 days
Response rate100%
Recommended by95%of homeowners
Avatar for B & D Plumbing, Heating & A/C
B & D Plumbing, Heating & A/C
4.8(
161
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+47 more

Serving Annandale, MN and surrounding areas

Approved

In business since 1982

Emergency services offered

Credit card accepted

"My God! Dan came out this morning, I explained what was done, he went to work on it right away! My furnace stopped working December 25th, 2024, no heat till today! Keep in mind, the last technician I hired in January 2025, charged me 240 dollars for 20 minutes analysis just to tell me I need new furnace and AC central, my AC works beautifully. Then I used 4 space heaters to keep my house warm! Man my electric bill was over 400 dollars the first month and climbing higher each coming months till Spring arrived! I hired B & D Plumbing and Heater Co. to come out and finish the job. It was a gentleman name Dan, he did an extremely awesome job, telling me the details, explaining everything I needed to knowledge. And now the furnace works about as good as it gets beautifully. The impressive part, he took his sweet time. And the most impressive part was when he presented my total bill! I was about to have a major heart attack when I saw the bill! It wasn’t through the roof bill! Cheap cheap"
Newly installed Lennox air conditioning unit.
Home without any duct work.
Newly installed Lennox furance.
Rough-In: Furnace & Air Conditioning
Broken furnace.

+79

17 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Prolific Mechanical
Prolific Mechanical
5.0(
7
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+20 more

Serving Annandale, MN and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Thomas and the team at Prolific Mechanical did an outstanding job installing our new boiler. They were professional, knowledgeable, and paid close attention to every detail. The installation was clean, completed on time, and everything has been working flawlessly. I highly recommend Prolific Mechanical to anyone looking for honest, high-quality HVAC work."
Avatar for DJ's Home Services
DJ's Home Services
4.5(
103
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+9 more

Serving Annandale, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1971

Emergency services offered

Warranties offered

"We met serviceman Alex L. from DJ's today. He worked as long as it was necessary to diagnose and fix issues with our furnace humidifier. It needed several adjustments. He worked very diligently and the price was reasonable (especially by today's standards for pricing). We would definitely hire DJs again for other HVAC and plumbing work. We also appreciated the company's thoroughness in providing reminder calls and other contact on the day of service to ensure we met Alex at our home at the right time. This shows an emphasis on customer service that we appreciate. Both Charlotte and Karen were very helpful to us on the phone today as well."
DJs Air Conditioner
DJs Furnance
DJs Boiler Repair
DJs Drains
DJs Electrical Panel

+40

Response time1 day
Response rate97%
20 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

While 72 degrees is a comfortable setting for many people, it’s likely not the most efficient temperature setting for your air conditioning unit. By pushing the temperature up to 75 or 78 degrees, you stand to save money on your energy bill. That said, these temperatures may be too warm to be comfortable for some people and are definitely too warm for most people to sleep comfortably.

Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a local air duct cleaner to clean and inspect them.

No, a furnace is not the same thing as an AC, or air conditioner, but these are both parts of an HVAC system. They both use air ducts to transport cool or hot air around your home to achieve a comfortable temperature set by your thermostat. An AC runs on electricity, while a furnace can use different fuel sources.

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.

A power outage can damage your air conditioner, just like a power surge can damage any electrical device or appliance. In most cases, your circuit breaker or built-in surge protection on your AC unit protects your AC and just needs a reset. But in other cases, it might be that your AC compressor or capacitor was blown during the power surge. You’ll need to have an HVAC professional repair or replace any AC parts. 

The Annandale, MN 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.