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HVAC · Mount Pleasant, SC/Updated June 13, 2026

The Best HVAC Companies in Mount Pleasant, SC

From timely installations to efficient repairs, find the best HVAC companies in Mount Pleasant that keep your home comfortable year-round.

Editorially independent10 companies evaluated
cover story
★ Editor's ChoiceDunes Heating and Air Conditioning
96Score
Latest update · June 13, 2026: Initial ranking published. 10 Mount Pleasant-metro hvac businesses evaluated, top 10 ranked by Vetted Score.

Finding a reliable HVAC company is essential for maintaining a comfortable home in Mount Pleasant, SC, where humidity and heat can be relentless. The right service provider can ensure your heating and cooling systems operate efficiently, saving you money and improving your indoor air quality.

Our list of the best HVAC companies in Mount Pleasant is based on a thorough analysis of customer reviews, service quality, and overall satisfaction. We evaluated ten local companies, ensuring our rankings reflect genuine customer experiences without any paid placements.

10hvac companies evaluated in Mount Pleasant
4.86average rating across the field
4.7Kcustomer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does hvac cost in Mount Pleasant? See the price breakdown →

Our top picks

At a glance · three categories
Editor's Choice
96Score

Dunes Heating and Air Conditioning

★★★★★5.0(721 reviews)

With a stellar rating of 5 based on 721 reviews, Dunes Heating and Air Conditioning is a top choice for HVAC services in Mount Pleasant.

Read full review
Most Reviewed
95Score

Carolina Custom Air

★★★★★4.9(1,272 reviews)

Carolina Custom Air boasts an impressive rating of 4.9 from 1,272 reviews, showcasing their popularity among locals.

Read full review
Best Value
94Score

Call Dad

★★★★★4.9(1,048 reviews)

With a rating of 4.9 based on 1,048 reviews, Call Dad stands out for providing excellent value for HVAC services in Mount Pleasant.

Read full review

All 10, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
5.0★★★★★
721Reliable installations and repairs
2
Carolina Custom Air
Carolina Custom Air
Most Reviewed
95Score
4.9★★★★★
1,272Comprehensive HVAC solutions
3
Call Dad
Call Dad
Best Value
94Score
4.9★★★★★
1,048Affordable and quick HVAC services
4
92Score
4.9★★★★★
855Emergency HVAC repairs
5
91Score
4.9★★★★★
273Residential installations and maintenance
6
90Score
4.9★★★★★
170Combined HVAC and electrical services
7
89Score
4.8★★★★★
134Seasonal HVAC maintenance
8
88Score
4.8★★★★★
130Routine maintenance and repairs
9
82Score
4.9★★★★★
31Basic HVAC installations
10
78Score
4.6★★★★★
93Quick and friendly HVAC assistance
Methodology

How we evaluated all 10 hvac companies.

To evaluate the HVAC companies, we analyzed customer feedback across various platforms, focusing on ratings and the volume of reviews. Each company was scored based on their performance, reliability, and customer service, with a transparent scoring system designed to highlight the best options available.

We refresh our rankings monthly to provide the most up-to-date information based on the latest customer experiences. This ensures that our recommendations reflect the current state of service in the Mount Pleasant area.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

Dunes Heating and Air Conditioning

★★★★★5.0(721 reviews)
96Score

With a stellar rating of 5 based on 721 reviews, Dunes Heating and Air Conditioning is a top choice for HVAC services in Mount Pleasant. Customers praise their prompt service and knowledgeable technicians, making them ideal for both installations and repairs. However, their availability can be limited during peak seasons, so early booking is recommended.

Pros

  • Excellent customer service
  • Highly rated technicians
  • Timely responses

Cons

  • Limited availability during peak seasons
  • Higher pricing than some competitors
Best forReliable installations and repairs
Service areaMount Pleasant, SC
Typical pricing$75 to $600
2
Most Reviewed

Carolina Custom Air

★★★★★4.9(1,272 reviews)
95Score

Carolina Custom Air boasts an impressive rating of 4.9 from 1,272 reviews, showcasing their popularity among locals. Customers highlight their thorough work and friendly staff, making them a trusted option for HVAC needs. The only downside is that their busy schedule can lead to longer wait times for appointments. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is comprehensive HVAC solutions. It serves Mount Pleasant, SC, with $100 to $600 pricing, and the honest trade-offs are longer wait times for appointments and potentially higher costs.

Pros

  • Extensive customer base
  • Friendly and professional staff
  • Thorough service

Cons

  • Longer wait times for appointments
  • Potentially higher costs
Best forComprehensive HVAC solutions
Service areaMount Pleasant, SC
Typical pricing$100 to $600
3
Best Value

Call Dad

★★★★★4.9(1,048 reviews)
94Score

With a rating of 4.9 based on 1,048 reviews, Call Dad stands out for providing excellent value for HVAC services in Mount Pleasant. Customers appreciate their transparent pricing and quick response times. However, some reviews mention inconsistency in service quality, which may vary by technician. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is affordable and quick HVAC services. It serves Mount Pleasant, SC, with $75 to $600 pricing, and the honest trade-offs are inconsistent service quality and limited service offerings.

Pros

  • Transparent pricing
  • Quick response times
  • Good value for money

Cons

  • Inconsistent service quality
  • Limited service offerings
Best forAffordable and quick HVAC services
Service areaMount Pleasant, SC
Typical pricing$75 to $600
4

HERO Heating and Air

★★★★★4.9(855 reviews)
92Score

HERO Heating and Air has earned a 4.9 rating from 855 reviews, with customers praising their knowledgeable technicians and efficient service. They are particularly well-regarded for emergency repairs. A common complaint is higher prices compared to similar companies, which may not suit every budget. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is emergency HVAC repairs. It serves Mount Pleasant, SC, with $100 to $600 pricing, and the honest trade-offs are higher pricing and limited promotional offers.

Pros

  • Knowledgeable technicians
  • Efficient service
  • Great for emergency repairs

Cons

  • Higher pricing
  • Limited promotional offers
Best forEmergency HVAC repairs
Service areaMount Pleasant, SC
Typical pricing$100 to $600
5

Austin Air LLC

★★★★★4.9(273 reviews)
91Score

Austin Air LLC holds a solid rating of 4.9 from 273 reviews, with clients often praising their attention to detail and thorough inspections. They excel in residential installations and routine maintenance. However, their thinner review base suggests they may be promising but unproven for larger projects. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is residential installations and maintenance. It serves Mount Pleasant, SC, with $75 to $600 pricing, and the honest trade-offs are limited reviews and less experience with complex systems.

Pros

  • Attention to detail
  • Thorough inspections
  • Good for maintenance

Cons

  • Limited reviews
  • Less experience with complex systems
Best forResidential installations and maintenance
Service areaMount Pleasant, SC
Typical pricing$75 to $600
6

Pleasant Air and Electric

★★★★★4.9(170 reviews)
90Score

Pleasant Air and Electric has a strong rating of 4.9 based on 170 reviews. Customers commend their friendly service and effective solutions. They are a solid choice for both HVAC and electrical work. However, their smaller operation may lead to longer wait times during busy periods. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is combined HVAC and electrical services. It serves Mount Pleasant, SC, with $100 to $600 pricing, and the honest trade-offs are longer wait times during busy periods and less availability for large projects.

Pros

  • Friendly service
  • Effective solutions
  • Versatile services

Cons

  • Longer wait times during busy periods
  • Less availability for large projects
Best forCombined HVAC and electrical services
Service areaMount Pleasant, SC
Typical pricing$100 to $600
7

Southern Seasons Heating & Air Conditioning

★★★★★4.8(134 reviews)
89Score

Southern Seasons Heating & Air Conditioning has a rating of 4.8 from 134 reviews, with customers appreciating their reliable service and knowledgeable staff. They are particularly good for seasonal maintenance. However, their limited service area may not accommodate all residents in Mount Pleasant. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is seasonal HVAC maintenance. It serves Mount Pleasant, SC, with $75 to $600 pricing, and the honest trade-offs are limited service area and fewer offerings than larger companies.

Pros

  • Reliable service
  • Knowledgeable staff
  • Good for seasonal maintenance

Cons

  • Limited service area
  • Fewer offerings than larger companies
Best forSeasonal HVAC maintenance
Service areaMount Pleasant, SC
Typical pricing$75 to $600
8

East Cooper

★★★★★4.8(130 reviews)
88Score

East Cooper has a solid rating of 4.8 based on 130 reviews, with clients often noting their punctuality and thoroughness. They are a dependable choice for routine maintenance and repairs. However, feedback indicates that they may be slow to respond during high-demand periods. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is routine maintenance and repairs. It serves Mount Pleasant, SC, with $75 to $600 pricing, and the honest trade-offs are slow response times in peak seasons and limited service options.

Pros

  • Punctual service
  • Thorough work
  • Dependable for maintenance

Cons

  • Slow response times in peak seasons
  • Limited service options
Best forRoutine maintenance and repairs
Service areaMount Pleasant, SC
Typical pricing$75 to $600
9

Mount Pleasant Heating & Air Conditioning

★★★★★4.9(31 reviews)
82Score

Mount Pleasant Heating & Air Conditioning has a rating of 4.9 from just 31 reviews, indicating a promising but unproven service. Customers report satisfactory experiences with installations, but the limited review base raises questions about their consistency and reliability. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is basic HVAC installations. It serves Mount Pleasant, SC, with $100 to $600 pricing, and the honest trade-offs are thin review base and unproven consistency.

Pros

  • Satisfactory installation service
  • Responsive customer service

Cons

  • Thin review base
  • Unproven consistency
Best forBasic HVAC installations
Service areaMount Pleasant, SC
Typical pricing$100 to $600
10

Pleasant Air Conditioning

★★★★★4.6(93 reviews)
78Score

Pleasant Air Conditioning has a rating of 4.6 based on 93 reviews. Customers appreciate their quick service and friendly staff. However, some reviews mention issues with follow-up service, which may concern those looking for long-term relationships with their HVAC provider. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is quick and friendly HVAC assistance. It serves Mount Pleasant, SC, with $75 to $600 pricing, and the honest trade-offs are issues with follow-up service and limited range of services.

Pros

  • Quick service
  • Friendly staff

Cons

  • Issues with follow-up service
  • Limited range of services
Best forQuick and friendly HVAC assistance
Service areaMount Pleasant, SC
Typical pricing$75 to $600
Before you book

How to choose an HVAC company in Mount Pleasant

Choosing the right HVAC company requires careful consideration of several factors to ensure quality service and value for your money. Here are some key points to keep in mind:

Check Reviews and Ratings

Look for companies with high ratings and numerous positive reviews to gauge customer satisfaction.

Evaluate Experience and Expertise

Consider how long the company has been in business and their expertise in handling various HVAC systems.

Compare Pricing and Services

Request quotes from multiple companies to understand pricing structures and the services included.

Inquire About Warranties and Maintenance Plans

Ask if the company offers warranties on their work and options for regular maintenance to prolong your system's lifespan.

What it costs

What HVAC services cost in Mount Pleasant

The cost of HVAC services in Mount Pleasant can vary based on the type of service required and the complexity of the job. Here’s a breakdown of typical pricing:

Basic Maintenance$75 to $150 for routine check-ups and filter replacements.
Repair Services$100 to $600 depending on the issue and parts needed.
System Installation$3,000 to $7,000 for new HVAC systems, including installation.
Emergency Services$150 to $300 for after-hours repairs and urgent issues.

Frequently asked questions

How much does HVAC service cost in Mount Pleasant?

HVAC service costs typically range from $75 to $7,000 depending on the service, with maintenance being the most affordable and system installation being the most expensive.

What should I look for in an HVAC company?

Look for companies with high reviews, experienced technicians, transparent pricing, and good customer service for the best experience.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most Mount Pleasant homes: Dunes Heating and Air Conditioning

The top three HVAC companies in Mount Pleasant are Dunes Heating and Air Conditioning, Carolina Custom Air, and Call Dad. Each offers exceptional service, but Dunes Heating and Air Conditioning stands out for its reliability and customer satisfaction, making it the best overall choice for homeowners.