Top-Rated South Bay HVAC Companies
6 vetted contractors, thoroughly researched and ranked
Last Updated: January 25, 2026
Our Top Pick
Air Quality Heating & Air Conditioning
License #769446 · Verified via CSLB
23 consecutive years of Diamond Certified status with 658 verified customer surveys and owner Matt Farber's personal involvement in every project.
Platform Scores
(76)
(90)
A+
23 yrs
76%
NATE Certified
Diamond Certified
Carrier Authorized
26 years in business since 1999, specializing in Carrier HVAC installations for residential and light commercial clients. Reviews consistently praise owner Matt Farber's personal involvement, quality workmanship, and technician expertise. Best for Bay Area homeowners seeking a relationship-focused, Diamond Certified contractor with proven longevity.
Essential Q&A
What makes them stand out?
23 consecutive years of Diamond Certified status with 658 verified customer surveys and owner Matt Farber's personal involvement in every project.
Who should hire them?
Homeowners in Santa Clara and San Mateo Counties seeking a relationship-focused HVAC contractor with Carrier expertise and proven long-term reliability.
Insider tip
Request Matt come out personally for the initial estimate—reviews consistently praise his thoroughness in explaining options and customizing solutions to your home's layout.
Platform Scores
(19)
(161)
A+
16 yrs
NATE Certified
Carrier Authorized
24/7 Emergency
44 years in business since 1981, specializing in Carrier HVAC installation, repair, and heat pump systems. Diamond Certified for 16 consecutive years with 286 verified customer surveys averaging 4.7 stars, known for owner involvement, honest pricing, and exceptional follow-up communication. Best for homeowners seeking a family-owned contractor with strong warranties and a proven track record of quality workmanship.
Essential Q&A
What makes them stand out?
Owner Ricardo Valderrama personally oversees jobs and is known for going above and beyond on warranty support, even helping with manufacturer warranties on systems he didn't install.
Who should hire them?
Homeowners who value quality workmanship over lowest price, want a family-owned contractor with decades of experience, and appreciate owner involvement and strong warranty backing.
Insider tip
Request Ricardo to personally assess your project—reviews consistently praise his technical knowledge, honest recommendations, and hands-on approach to ensuring installations are done right the first time.
#3
Air Sharks
Platform Scores
(191)
(90)
A+
2 yrs
Lennox Authorized
Daikin Authorized
24/7 Emergency
3 years in business, specializing in heat pump conversions and HVAC system replacements. Diamond Certified with 88 verified customer surveys, Lennox Premier Dealer status, and BuildZoom score in top 1% of California contractors. Best for South Bay homeowners seeking competitive pricing on premium HVAC systems with full permit handling and rebate assistance.
Essential Q&A
What makes them stand out?
Diamond Certified with 88 verified phone surveys, Lennox Premier Dealer, and BuildZoom top 1% ranking—rare combination of third-party verification that most HVAC contractors don't achieve.
Who should hire them?
South Bay homeowners seeking full-service HVAC replacement with competitive pricing on premium Lennox and Daikin systems, especially those converting from gas to heat pump who need permit and rebate assistance.
Insider tip
Request their itemized invoice upfront—reviews consistently praise clear line-item breakdowns; also ask about their satisfaction guarantee which offers 100% refund if unhappy.
Platform Scores
(225)
(248)
A+
21 yrs
84%
NATE Certified
Diamond Certified
BPI Building Analyst Certified
Lennox (Centurion Outstanding Dealer) Authorized
Mitsubishi Electric (Diamond Contractor) Authorized
64 years in business since 1962, specializing in residential and light commercial HVAC, electrical, and solar services. Distinguished by 21 consecutive years of Diamond Certification with 455 verified customer surveys and NATE-certified technicians with in-house training. Best for homeowners seeking a well-established, family-owned contractor with a proven track record and 100% satisfaction guarantee.
Essential Q&A
What makes them stand out?
21 consecutive years of Diamond Certification with 455 verified telephone surveys, combined with 64 years of family ownership and NATE-certified technicians trained through an in-house certification program.
Who should hire them?
Homeowners in Silicon Valley and the Peninsula who value an established, highly-credentialed contractor with verified customer satisfaction over the lowest price, particularly for complex projects or older homes.
Insider tip
Mention 'website offer' when scheduling for $100 off new furnace or AC installation, and ask about their price-match guarantee on maintenance services to maximize value.
Platform Scores
(423)
(214)
A+
5 yrs
NATE Certified Technicians
Bryant Certified Ductless Pro
Diamond Certified
Bryant Authorized
Mitsubishi Authorized
24/7 Emergency
Family-owned HVAC contractor serving Santa Clara County since 2014, specializing in residential and light commercial heating/cooling systems. Diamond Certified for 5 consecutive years with 109 verified customer surveys averaging 4.8 stars, known for technicians who explain work thoroughly and provide prompt, professional service. Best for homeowners seeking a reliable, locally-owned company with strong accountability and maintenance programs.
Essential Q&A
What makes them stand out?
Diamond Certified for 5 consecutive years with owner Joey Mangano personally involved in operations, offering a Care Club maintenance program with priority service and discounts for members.
Who should hire them?
Homeowners in Santa Clara County who value detailed explanations, want a family-owned company with strong accountability, and appreciate ongoing maintenance relationships over one-time transactions.
Insider tip
Join the Care Club maintenance program for priority scheduling, no overtime charges, and 20% off repairs—reviews consistently praise their proactive communication including pre-appointment texts with technician photos.
Platform Scores
(209)
(3)
N/A
24/7 Emergency
In business since 2007, this family-owned HVAC contractor specializes in residential heating, cooling, and duct cleaning services across Silicon Valley. Reviews consistently praise owner Sal's rapid response times, honest pricing without upselling, and professional workmanship with same-day service availability. Best for homeowners seeking affordable, no-pressure HVAC repairs and installations with personalized service from owners who answer every call.
Essential Q&A
What makes them stand out?
Owner-operated family business where Sal Sr. or Regina personally answer every call, providing rapid same-day response and honest, no-pressure pricing that reviewers frequently compare favorably to competitors charging significantly more.
Who should hire them?
Homeowners who value personal service, transparent pricing, and fast response times for residential HVAC repairs, maintenance, and installations in the South Bay area.
Insider tip
Call directly rather than using online forms - the owners answer personally and can often schedule same-day appointments, even on weekends; multiple reviewers noted Sal responded within 2 minutes of their initial request.