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.
Only companies with a Certified Best Pick® badge meet our strict satisfaction & licensing requirements and are eligible for the Best Pick Guarantee.
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.
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.
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.
Real homeowners looking for air conditioning & heating in your area
"gas heating and cooling annual contracts"
"Oil burner service and contract."
"Replace 1 2 ton condenser 1 3 ton condenser 1 Handler"
"Central AC routine maintenance"
"Cost of installation in financing."
Every Best Pick company in Long Island is independently researched and certified annually. We analyze thousands of customer reviews, verify licensing and insurance, and confirm each company meets our strict qualification standards.
We conduct extensive satisfaction surveys and analyze thousands of customer experiences annually.
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Independent Research
Companies earn Best Pick certification through performance alone. Only businesses with 80%+ recommendation rates qualify.
Best Pick status isn't permanent. Every certified company must re-qualify annually.
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Insured
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We stand behind our certified companies with a financial guarantee up to $2,500.
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Financial guarantee included
Only air conditioning & heating companies that meet our strict standards earn Best Pick status.
Air Conditioning & Heating companies must maintain a 4.0+ rating and an 80% recommendation rate.
Current state contractor license verification and general liability insurance for air conditioning & heating work
Minimum 1 year in business with established local presence
Maintain active business registration and in good standing with the state
Consistent air conditioning & heating service quality across all projects
Must re-qualify every year through new research
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:
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:
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:
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.
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.
