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Trusted HVAC Services in Mamaroneck, NY
Alex Heating & AC has been serving Lower Westchester County, New York, with expert heating and air conditioning solutions since our founding. Our team of certified technicians specializes in installation, repair, and maintenance of HVAC systems, prioritizing customer satisfaction through transparent pricing and 24/7 emergency service. With decades of combined experience, we deliver energy-efficient systems tailored to residential and commercial needs, backed by 10-year limited parts warranties.

Our commitment to professionalism includes upfront diagnostics, affordable solutions, and a guarantee to clean up after every job. As a fully licensed and insured contractor, we maintain strong relationships with leading manufacturers to ensure reliable, high-quality service year-round.
Services
Installation Maintenance Repair Commercial Services Service Contracts Consultations New Installations Filter Replacement Maintenance Benefits Emergency Services
Highlights and features
  • We offer 24/7 emergency HVAC services with no overtime charges.
  • Our installations include up to a 10-year limited parts warranty.
  • We provide upfront pricing before any service begins.
  • Our team consists of certified technicians with decades of combined experience.
  • We offer customized service agreements for residential and commercial clients.
What people say
Prompt service Transparent pricing Professional technicians No upselling Affordable solutions
Services
Installation
We specialize in installing energy-efficient heating and cooling systems, including heat pumps, ductless units, and high-velocity systems. Our in-house design team customizes solutions for residential and commercial properties, ensuring optimal comfort and efficiency. All installations come with manufacturer warranties up to 10 years.
Maintenance
Regular maintenance keeps HVAC systems running efficiently through extreme seasons. We offer customized service agreements with seasonal inspections and priority emergency response. Our technicians service all brands and system types to prevent costly breakdowns and extend equipment lifespan.
Repair
Our certified technicians diagnose and repair all HVAC systems 24/7. We provide upfront pricing after thorough diagnostics and stock trucks with common parts for quick fixes. Services cover residential and commercial heating, cooling, and air quality systems in Lower Westchester County.
Commercial Services
We deliver tailored HVAC solutions for commercial properties, including system design, installation, and maintenance. Our team handles large-scale projects with zoning systems and custom ductwork, ensuring compliance with industry standards while minimizing operational disruptions for businesses.
Service Contracts
Our service agreements include bi-annual maintenance visits and free emergency service calls. These plans help businesses and homeowners maintain system efficiency, prevent breakdowns, and maximize warranty coverage through proactive care by our experienced technicians.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for heating, air conditioning, and ventilation systems, including emergency 24/7 service for residential and commercial clients.
Do you service all HVAC brands?
Yes, our certified technicians work with all major HVAC brands for repairs, maintenance, and installations, using manufacturer-approved parts and methods.
What areas do you serve?
We serve Lower Westchester County, New York, including Mamaroneck, with prompt HVAC services for homes and businesses.
Do you offer warranties on your work?
All installations include manufacturer warranties up to 10 years, and our workmanship is guaranteed with free follow-up service if needed.
How quickly can you respond to emergencies?
Our 24/7 emergency team responds immediately to HVAC breakdowns, with technicians available within hours to restore comfort and safety.