SIX HVAC, LLC

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About SIX HVAC, LLC
SIX HVAC, LLC serves Princeton and surrounding New Jersey communities with around-the-clock heating and cooling support. The company holds a 4.8-star average across 53 customer reviews, reflecting consistent satisfaction with both routine maintenance and emergency repairs. Every day of the week, including weekends and holidays, the team remains available for urgent calls, a critical detail for homeowners facing sudden system failures during extreme weather.
What distinguishes SIX HVAC is its membership program, which bundles filter changes, humidifier pad replacements, safety inspections, leak detection, and full system cleaning into a single monthly fee. This proactive approach aims to prevent deterioration before costly repairs become necessary. The program also includes parts coverage and repair guarantees, giving members financial predictability alongside equipment protection. Reviewers specifically note the value of having one trusted provider handle both heating and cooling needs without navigating multiple contractors.
Customer stories from reviews describe specific scenarios that illustrate the company's service approach. One homeowner recounts how the team completed an entire heating and air conditioning installation with excellent pricing and follow-through. Another describes a same-day response during a system breakdown, with the technicians explaining their work in detail and answering every question. A third reviewer mentions the convenience of flexible scheduling and a technician who arrives at the designated time, completes work neatly, and explains each step of the process.
What Customers Say
Fifty-three reviews yield a 4.8-star average, with multiple five-star ratings citing reliability, fair pricing, and thorough explanations of repair work. Positive reviewers consistently mention same-day or quick-response service, while a single one-star review describes incomplete installations and communication issues. Recurring themes include the membership program's value, 24/7 emergency availability, and technicians who treat homes with care.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
HVAC System Installation
Complete heating and cooling system installation for residential properties, including new equipment selection and professional setup.
Emergency HVAC Repair
Around-the-clock emergency repair services available every day of the week, including holidays and weekends.
Membership Maintenance Club
Monthly program covering filter changes, humidifier pads, safety inspections, leak detection, and system cleaning with parts and repair included.
Preventive Maintenance & Tune-ups
Regular maintenance designed to prevent system deterioration and extend equipment lifespan through professional cleaning and inspection.
Heating System Service
Repair, maintenance, and installation services for furnaces and other heating equipment.
Cooling System Service
Air conditioning repair, maintenance, and installation to ensure reliable summer comfort.