6 AC Replacement Contractors in Caldwell, ID

4.5 avg rating
9,407 total reviews2 offer 24/7 service
Need emergency service? 6 HVAC providers in Caldwell offer 24/7 availability

Top-Rated AC Replacement Contractors in Caldwell

#1

Right Now Heating, Air Conditioning & Plumbing

4.8(7,691 reviews)
24/7 Highly Rated

Seven of eight recent reviews award 5 stars, with customers specifically mentioning same-day emergency response, thorough equipment explanations, and…

212 Evans St, Caldwell, ID 83605
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#2

American Rooter & Drain

4.8(1,645 reviews)
Highly Rated

Three of five detailed reviews name specific technicians (Mason, Brandon Irby, Deakin) and praise their diagnostic approach and friendly demeanor. Positive…

1005 Commercial Way, Caldwell, ID 83605
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#3

Heating Equipment Company

4.7(35 reviews)

Four of five complete reviews rate the company five stars, with reviewers specifically naming technicians Jim and acknowledging office staff Monica. Positive…

123 Everett St, Caldwell, ID 83605
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All AC Replacement Contractors (6 total)

Hammons Heating & Air

5.0(20)

Eight of twenty reviewers specifically mention same-day or rapid response service, with several noting…

13272 Smithtown Ct, Caldwell, ID 83607
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Drake Mechanical

2.4(14)
24/7

3 of 3 documented reviews assign 1-2 star ratings, with common complaints citing incomplete repairs,…

5011 Aviation Way, Caldwell, ID 83605
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AIR TO AIR HEATING & COOLING LLC

5.0(2)

Two client reviews both award five stars, with one explicitly stating the services rank among the best in…

13284 Willis Rd, Caldwell, ID 83607
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AC Replacement Costs in Caldwell

Replacement costs for aging systems in Caldwell. If repair cost exceeds 50% of replacement, replacement is usually more economical.

ServiceLowAverageHigh
Central AC (3-ton, basic)
$6,160$8,960$12,320
Central AC (4-ton, mid-efficiency)
$8,400$11,760$15,680
Central AC (5-ton, high-efficiency)
$10,640$14,000$17,920
Full HVAC system (AC + furnace)
$12,981$15,042$15,792
Plus ductwork replacement
If existing ducts are aged/leaking
$2,352$3,360$4,480
Repair cost threshold50% rule: if repair > 50% of replacement, replace

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Replacement in Caldwell, ID: What to Expect

Caldwell sits within the Boise metropolitan area, where summers push daytime highs to 91 F under dry, semi-arid conditions while winter lows plunge to 24 F between October and April. The low humidity actually improves cooling efficiency, but the prolonged heating season from fall through spring keeps HVAC systems working hard across most of the year. Six contractors serve the area with an average rating of 4.5 across more than 9,400 customer reviews, and two of them provide around-the-clock emergency service. For homeowners facing that kind of temperature range, AC Replacement in Caldwell becomes less a luxury and more a practical necessity for maintaining comfortable indoor conditions through Idaho's extreme seasonal shifts.

Replacement costs depend heavily on system size and efficiency ratings. A basic 3-ton central AC unit runs $6,160 to $12,320, while a mid-efficiency 4-ton system costs $8,400 to $15,680. High-efficiency 5-ton units range from $10,640 to $17,920. Idaho law requires every HVAC contractor to hold a license from the Idaho Division of Building Safety, and the technicians performing installations must have completed a four-year apprenticeship totaling 8,000 hours of field training. Those credentials matter when a system needs to perform reliably across both the scorching summers and the extended cold season.

Customer feedback highlights distinct service strengths among local contractors. Right Now Heating, Air Conditioning & Plumbing earns praise for same-day emergency response, detailed equipment explanations, and transparent pricing. American Rooter & Drain technicians like Mason, Brandon Irby, and Deakin are specifically mentioned for their diagnostic approach and friendly manner. Heating Equipment Company draws commendations for rapid same-day visits, with technicians like Jim and office staff Monica frequently named in positive reviews.

Frequently Asked Questions

AC replacement in Caldwell runs $2,352-$17,920 depending on system size and efficiency. A 3-ton basic central AC costs $5,500-$11,000 installed, a 4-ton mid-efficiency system $7,500-$14,000, and a 5-ton high-efficiency unit $9,500-$16,000. Full HVAC replacement (AC + furnace combined) averages $11,590-$14,100.