Best Air Conditioning & Heating Companies in Long Island
Long Island

Best Air Conditioning & Heating Companies in Long Island

Find trusted air conditioning & heating professionals serving Long Island. All contractors are independently researched and certified.

Only companies with a Certified Best Pick® badge meet our strict satisfaction & licensing requirements and are eligible for the Best Pick Guarantee.

3
Recommended Pros
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3 Contractors

Only companies with a Certified Best Pick® badge meet our strict satisfaction & licensing requirements and are eligible for the Best Pick Guarantee.

NH Ross Plumbing, Heating, Cooling & Electric
Certified Best Pick

NH Ross Plumbing, Heating, Cooling & Electric

Certified Pro

NH Ross is your go-to for reliable plumbing, heating, cooling, and electrical solutions on Long Island. Our commitment to excellence, coupled with a blend of expertise and local warmth, ensures top-notch service. Experience the comfort and reliability that make us your go-to home service provider in Suffolk and Nassau County.

2nd year as a Best Pick Insured Workers' Comp
Tragar Home Services
Certified Best Pick

Tragar Home Services

Certified Pro

Tragar provides complete comfort solutions for Long Island families so they can focus on living. We value all the virtues of a loving home: Caring, dependability, trustworthiness, and fairness for our clients, team, and community. Our service commitment begins with the first contact. Since 1956, Tragar has been the Family of Comfort.

1st year as a Best Pick Insured Workers' Comp
Varsity Home Services
Certified Best Pick

Varsity Home Services

Certified Pro

Practice makes perfect, and we've been at it for over 60 years! My father founded Varsity with a simple dream: To lead by example and demonstrate the value of honest, hands-on work. It's an honor to uphold those values by serving our neighbors with integrity and delivering lasting results.

1st year as a Best Pick Insured Workers' Comp

Recent Project Requests in Long Island

Real homeowners looking for air conditioning & heating in your area

Long Island

"gas heating and cooling annual contracts"

Sep 25, 2025
West Islip

"Oil burner service and contract."

Sep 17, 2025
Long Island

"Replace 1 2 ton condenser 1 3 ton condenser 1 Handler"

Aug 17, 2025
Long Island

"Central AC routine maintenance"

Apr 14, 2025
Long Island

"Cost of installation in financing."

Apr 9, 2025
Certification Standards

How Long Island Air Conditioning & Heating Companies Earn Best Pick Certification

Only air conditioning & heating companies that meet our strict standards earn Best Pick status.

Customer Satisfaction

Air Conditioning & Heating companies must maintain a 4.0+ rating and an 80% recommendation rate.

Licensing & Insurance

Current state contractor license verification and general liability insurance for air conditioning & heating work

Business Stability

Minimum 1 year in business with established local presence

Verified State Standing

Maintain active business registration and in good standing with the state

Operational Excellence

Consistent air conditioning & heating service quality across all projects

Annual Re-Certification

Must re-qualify every year through new research

Frequently Asked Questions

Common questions about Certified Best Pick® air conditioning & heating companies in Long Island

Best Pick Certified Air Conditioning and Heating companies in Long Island have earned their status through independent consumer research—not paid placement. To qualify, a company must meet strict standards:

  • High customer satisfaction: 4.0+ Google rating (25+ reviews) OR 80%+ recommendation rate from surveyed customers
  • Verified credentials: Active state licenses, general liability insurance, and workers' comp (where required)
  • Financial stability: Clean credit history and active Secretary of State standing
  • Local track record: Minimum 1 year serving the Long Island area

Certification is re-verified annually, ensuring continued performance.

No. Air Conditioning and Heating companies cannot buy Best Pick Certification, improved ratings, or better placement. Our research team independently evaluates companies based on customer satisfaction, licensing, insurance, and business stability—before any business relationship exists.

Companies that earn certification pay a participation fee after qualifying, which covers the cost of ongoing research and publication. This fee has no influence on whether a company qualifies or how they appear in our directory.

The Best Pick Guarantee provides financial protection—up to $2,500 in labor costs—if a Certified Best Pick Air Conditioning and Heating company fails to deliver on their commitments.

To be eligible:

  • Contact the company through Best Pick Reports or BestPickReports.com
  • Register for the guarantee (free)
  • Submit any claim within 45 days of the final date of service
  • Allow the company the opportunity to resolve the issue first

This guarantee applies only to Certified Best Pick companies, not Standard Pros. Full terms are available on our guarantee page.

Long Island homeowners most frequently encounter AC units not cooling properly during summer and furnaces failing to heat in winter, along with persistent thermostat malfunctions.

Key local factors:

  • Aging infrastructure: 80% of homes built before 1970 with outdated HVAC systems
  • Refrigerant issues: 44% of systems have improper refrigerant charge
  • Poor airflow: 70% of systems suffer from inadequate airflow and dirty filters
  • Coastal conditions: High humidity from June to September strains cooling systems
  • Storm damage: Hurricane risks and strong winds damage outdoor condenser units

The predominant 1950s-era housing stock means many systems are operating beyond their intended lifespan. Combined with Long Island's extreme seasonal humidity variation and coastal weather risks, these older systems face significant strain that leads to frequent breakdowns during peak summer and winter months.

Long Island's IECC Climate Zone 4A mixed-humid climate creates unique challenges for HVAC systems year-round.

Summer impacts: With average July highs of 82°F and extreme humidity from June through September, AC units work significantly harder during heat waves above 90°F. Cooling efficiency decreases as outdoor temperatures rise, and prolonged operation causes increased wear on compressors and condensers. Call volume increases 2-3 times normal levels during the first major heat wave.

Winter considerations: January lows averaging 27°F with 96 freeze days annually strain heating systems considerably. Traditional heat pumps struggle below 20-30°F, requiring auxiliary heat, while winter service calls also spike 2-3 times normal volume during the first cold snap.

Best timing: Spring and fall offer optimal installation conditions with better contractor availability and 10-15% pricing discounts, allowing systems to be tested in both heating and cooling modes before peak seasons arrive.

HVAC project timelines in Long Island vary significantly based on complexity and seasonal demand.

  • Simple repairs: 1-2 hours for thermostat replacement, filter changes, or minor refrigerant top-offs with same-day service typical
  • Standard projects: 4-8 hours for central AC or furnace replacement, potentially requiring electrical upgrades for higher-efficiency units
  • Major projects: 1-2 days for full HVAC system replacement, extending to 3-5 days when ductwork modifications are needed
  • Permit timeline: 2-4 weeks for standard residential projects in Long Island municipalities

Scheduling varies dramatically by season, with emergency repairs available same-day to 24 hours, routine work taking 3-7 days, and major installations requiring 1-3 weeks that extends to 2-4 weeks during peak summer and winter demand periods.