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Best heating and air conditioning pros near Caldwell, ID

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TRUSTED BY CALDWELL, ID HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon183
    Verified heating and air conditioning services reviews

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

Avatar for Diamond Heating & Cooling
Diamond Heating & Cooling
4.9(
313
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+2 more

Serving Caldwell, ID and surrounding areas

Approved (Corporate)

In business since 1999

Free estimates

Credit card accepted

We have a low $79 diagnostic fee, 24/7 service with NO after hour fees for Silver Club Members. We are now offering full service electrical and plumbing in addition to our HVAC services! We provide service, maintenance and replacement on all makes and models of furnaces and air conditioners. We have wonderful Indoor Air Quality products which can help with Asthma, Allergies or even Mold. Hard work, ambition, safety, honesty and the desire to be a superior presence in a demanding business have won our reputation of quality and dependability placing us as "Your Home's Best Friend". Our company was founded on the premise that quality principles and attention to detail should be unwavering standards. Experience the Diamond Difference today!

Logo
Recommended by96%of homeowners
Avatar for No Bogus Heating And Cooling LLC
No Bogus Heating And Cooling LLC
5.0(
9
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+1 more

Serving Caldwell, ID and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"These guys are awesome. They are totally nerdy about HVAC and I love that they really tell me and actually know what's going on. I own a commercial building and have 4 HVAC units (all in different stages of disrepair) and not-a-one did I have to replace because they FIXED THEM ALL. They have already saved me thousands of dollars and they're also cool and easy to be around which is an added bonus. Highly recommend this local business!"
Indoor Unit
Outdoor unit
Response time3 hrs
Response rate92%
5 neighbors recently requested a quote
Avatar for Fix It Frankie A/C and Heating
Fix It Frankie A/C and Heating
4.9(
19
)
Central A/C - InstallCentral A/C - Service or RepairDucts & Vents - Install or Replace+15 more

Serving Caldwell, ID and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Fantastic service! Out of 3 inspections, FixItFrankie was the only one who got it right!!! Brandon was Very knowledgeable and found out we did not have a Freon leak! Everyone else said we did and they couldn't repair! They just wanted to sell us a whole new unit:( If your looking for Honest, Knowledgeable HVAC work, Brandon is your Guy!!!"
Residential
Residential
Residential
HVAC SYSTEMS
HVAC SYSTEMS

+1

Response time3 hrs
Response rate99%
20 neighbors recently requested a quote
Avatar for ECO HVAC
ECO HVAC
4.5(
33
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairDuctless Mini-split Heating System - Install or Replace+5 more

Serving Caldwell, ID and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Absolutely amazing! A/C stopped working. Kenny called immediately after I put in a request for service. Two hours later, not only was he there, but he had the problem resolved and my A/C back up and running. All this happened in the middle of summer with 100 degree days. I cannot thank him enough! Will definitely be using him in the future for all my HVAC needs!"
New Furnace
New Heat Pump
90% furnace
Response time5 hrs
Response rate86%
19 neighbors recently requested a quote
Avatar for Right Now Heating & Air
Right Now Heating & Air
4.2(
300
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+8 more

Serving Caldwell, ID and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I liked how quick Right Now Heating & Air installed the system. I also liked that they kept their word without arguing about the small things. I did not like the way they set up the system, especially for the price."
Response time5 hrs
Response rate92%
81 neighbors recently requested a quote
Avatar for Magic Electric, Plumbing, Heating + Air- Boise
Magic Electric, Plumbing, Heating + Air- Boise
4.6(
237
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+21 more

Serving Caldwell, ID and surrounding areas

Approved

In business since 2013

Emergency services offered

Warranties offered

"We had what we thought would be an easy installation of a ceiling fan in our spare bedroom/home office. With the HVAC system also near that space and the position of the fan, they had a lot of challenges that we didn't anticipate. They were very professional in explaining what they encountered, how it might impact our final cost, and what our options were. They were so prompt, courteous, and professional that we now use them for all of our electrical projects and needs including routine maintenance and checks."
Exterior Lighting
Residential Services
Ceiling Fan Install
Outlets and Switches
Whole Home Electrical Services

+2

Response time8 hrs
40 neighbors recently requested a quote
Recommended by92%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

An air conditioner’s watt usage depends on multiple factors, including the type of AC unit, its size, and how often you use it. With that said, most central air conditioners consume between 3,000 and 3,500 watts. Meanwhile, window AC units use 900 to 1,400 watts, and portable air conditioners consume 2,900 to 4,100 watts.

When deciding whether to repair or replace your air conditioner, several factors should be considered. It is generally worth repairing the unit if it's less than 10 years old, the warranty is still active, and you're dealing with a one-off issue. Most central AC units last about 15 years, while window units last 8 to 10 years. If your unit is approaching or has surpassed the 10-year mark and requires frequent or costly repairs (e.g., over $5,000), replacement is often the more sensible long-term investment. For older, inefficient, or out-of-warranty units experiencing multiple problems, replacing it is typically the better choice.

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

The Caldwell, ID 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.