7 AC Replacement Contractors in Pleasanton, CA

4.8 avg rating
471 total reviews2 offer 24/7 service
Need emergency service? 11 HVAC providers in Pleasanton offer 24/7 availability→

Top-Rated AC Replacement Contractors in Pleasanton

#1

JJ Co

4.8(154 reviews)
24/7 Highly Rated

“The company maintains a 4.8-star average across 154 reviews, though two detailed negative reviews cite permit processing delays and communication breakdowns…”

5673 W Las Positas Blvd Suite 203, Pleasanton, CA 94588
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#2

American Attics

5.0(111 reviews)
Highly Rated

“Three of four detailed reviews award five stars, praising thorough air sealing, sanitation work, and whole house fan installation. The sole two-star review…”

6701 Koll Center Pkwy Ste 250, Pleasanton, CA 94566
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#3

Western Heating & Cooling

4.8(59 reviews)

“Four of five detailed reviews name Jose as the technician and praise his diagnostic clarity and professionalism. The sole one-star review, while critical of…”

4900 Hopyard Rd Suit 100, Pleasanton, CA 94588
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All AC Replacement Contractors (7 total)

Contra Costa Heating & Air Conditioning

4.1(96)

“Of 94 reviewers, 4 explicitly mention emergency or same-day service capability, and customers who left 5-star…”

7059 Commerce Cir Suite A, Pleasanton, CA 94588
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Aire Serv of Pleasanton

4.8(31)
24/7

“26 of 31 reviewers awarded 5 stars, praising system longevity, technician professionalism, and same-day…”

7026 Koll Center Pkwy #211, Pleasanton, CA 94566
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King Air

5.0(19)

“All eight reviewed customers awarded 5 stars, with multiple reviewers emphasizing same-day service and…”

J4VJ+CW King Air, Pleasanton, CA 94566
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AC Logix Inc

5.0(1)
1241 Quarry Ln #130, Pleasanton, CA 94566
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AC Replacement Costs in Pleasanton

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

ServiceLowAverageHigh
Central AC (3-ton, basic)
$5,060$7,360$10,120
Central AC (4-ton, mid-efficiency)
$6,900$9,660$12,880
Central AC (5-ton, high-efficiency)
$8,740$11,500$14,720
Full HVAC system (AC + furnace)
$10,663$12,356$12,972
Plus ductwork replacement
If existing ducts are aged/leaking
$1,932$2,760$3,680
Repair cost threshold50% rule: if repair > 50% of replacement, replace

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

AC Replacement in Pleasanton, CA: What to Expect

Pleasanton's inland position means summer temperatures regularly climb into the upper 90s, a stark contrast to the mild Bay Area coast. This heat drives significant demand for AC Replacement in Pleasanton, where nine contractors serve the market with an average rating of 4.8 stars. Homeowners replacing aging systems benefit from competitive options among these licensed professionals.

Central AC replacement costs range significantly based on system size and efficiency. A basic 3-ton unit runs $5,060 to $10,120, while mid-efficiency 4-ton systems cost $6,900 to $12,880. High-efficiency 5-ton models reach $8,740 to $14,720. California law requires all contractors to hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the Contractors State License Board, ensuring baseline qualifications for installation work.

Customer feedback reveals distinct service strengths. Valley Plumbing technicians Kirk, Johnathan, and Mike earn consistent praise for technical knowledge and problem-solving approach, with same-day response mentioned across reviews. American Attics receives strong marks for thorough air sealing and whole house fan installation, though one customer noted incomplete rodent droppings cleanup. JJ Co maintains a 4.8-star average across 154 reviews, with some clients citing permit processing delays following service completion.

Frequently Asked Questions

AC replacement in Pleasanton runs $1,932-$14,720 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.

All HVAC Contractors in Pleasanton, CA

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