11 AC Replacement Contractors in Mt Pleasant, SC

3.9 avg rating
3,718 total reviews3 offer 24/7 service
Need emergency service? 14 HVAC providers in Mt Pleasant offer 24/7 availability

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Top-Rated AC Replacement Contractors in Mt Pleasant

#1

Preferred Home Services

4.9(1,858 reviews)
Highly Rated

With 1,833 reviews averaging 4.9 stars, customers consistently mention specific technicians by name and praise Same-Day scheduling availability, while negative…

454 Shipping Ln Unit C, Mt Pleasant, SC 29464
#2

HERO Heating and Air

4.9(852 reviews)
Highly Rated

Four of four detailed reviews award 5 stars, with technicians named (Hunter Polk, Logan, Scott) appearing in positive feedback. Customers specifically contrast…

490 Long Point Rd, Mt Pleasant, SC 29464
#3

Dunes Heating and Air Conditioning

5.0(703 reviews)
24/7 Highly Rated

All 698 reviews award 5 stars, with Damian named explicitly in nearly every testimonial as the technician providing service. Customers frequently mention…

3003 Dunes W Blvd, Mt Pleasant, SC 29466

All AC Replacement Contractors (11 total)

HomeSmiles

5.0(151)
Highly Rated

All 151 reviews award 5 stars, with technicians specifically named in 7 of 8 sampled reviews. Ryan appears in…

11 Ewall St, Mt Pleasant, SC 29464

Complete Comfort Air

4.7(62)

Three of five detailed reviews specifically mention same-day or prompt service during system failures, with…

245 Crystal Dr, Mt Pleasant, SC 29466

Four Seasons Heating & Air Conditioning

4.5(72)

All five detailed reviews award 5 stars, with customers specifically naming Ken Smith, KC, and Brett Cannady…

1475 Stuart Engals Blvd, Mt Pleasant, SC 29464

JAC Services

5.0(11)

Every reviewer awarded 5 stars, citing emergency same-hour response during extreme heat, honest…

1501 Belle Isle Ave Suite 110 Office 33, Mt Pleasant, SC 29464

German's Heating & Air Conditioning

4.0(8)

Five of seven detailed reviews award five stars, praising William German's craftsmanship, same-day…

2713 Rifle Range Rd, Mt Pleasant, SC 29466

Mr Comfort Heating Cooling And Plumbing

5.0(1)
24/7

Single 5-star review documents two distinct service calls , a mini-split unit installation and an emergency…

1716 Deer Path Dr, Mt Pleasant, SC 29464

Coastal Gas & HVAC

0.0
1090 Johnnie Dodds Blvd, Mt Pleasant, SC 29464

Charleston Aeroseal

0.0
24/7
1150 Hungry Neck Blvd, Mt Pleasant, SC 29464

AC Replacement Costs in Mt Pleasant

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

ServiceLowAverageHigh
Central AC (3-ton, basic)
$5,500$8,000$11,000
Central AC (4-ton, mid-efficiency)
$7,500$10,500$14,000
Central AC (5-ton, high-efficiency)
$9,500$12,500$16,000
Full HVAC system (AC + furnace)
$11,590$13,430$14,100
Plus ductwork replacement
If existing ducts are aged/leaking
$2,100$3,000$4,000
Repair cost threshold50% rule: if repair > 50% of replacement, replace

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

AC Replacement in Mt Pleasant, SC: What to Expect

Charleston’s coastal Lowcountry climate pushes air conditioning to the top of homeowner priorities: 89°F highs and 78% humidity create heavy latent loads from May through September, and mild winters keep moisture control central year-round. Salt air accelerates corrosion for systems near waterways, driving steady demand for ac-replacement Mt Pleasant. Five contractors serve the area, averaging a 4.8 rating from 3,519 reviews; one offers 24/7 service.

Exact local pricing varies with unit capacity, efficiency (SEER), ductwork changes and corrosion-resistant materials, so install costs reflect both equipment and coastal protection measures. South Carolina requires HVAC firms to hold a Mechanical Contractor (Group 2 — HVAC) license from the Contractor’s Licensing Board, and permits or coastal-code upgrades can add to bids. Compare written estimates that itemize labor, materials, and coastal corrosion mitigation.

No individual technician names were provided in the supplied highlights, but the large number of high ratings indicates consistent satisfaction across providers. Reviews commonly stress the value of routine maintenance, timely warranty handling and corrosion-resistant options for seaside homes. Ask potential contractors for references, documented Group 2 licensing, detailed corrosion mitigation plans, emergency-response availability and clear warranty terms before committing.

Frequently Asked Questions

AC replacement in Mt Pleasant runs $2,100-$16,000 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 Mt Pleasant, SC

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