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44 Years
experience
Emergency
services
Trusted HVAC Services in Mamaroneck, NY
Alex Heating & AC has been serving Lower Westchester County since 1982, beginning operations in Slovenia before expanding to employ over 500 professionals across 10 countries. Our team specializes in residential and commercial HVAC solutions, including installation, repair, and maintenance of air conditioning, heating systems, and energy-efficient technologies. With 24/7 emergency service, licensed and insured technicians, and a commitment to transparency, we prioritize customer satisfaction through upfront pricing and personalized service. Our expertise spans forced air, radiant heat, hydronic, and steam systems, supported by in-house sheet metal fabrication for custom ductwork.

We offer seasonal maintenance programs, 10-year product warranties on new installations, and free service calls under maintenance agreements. Our professionals receive ongoing training in the latest HVAC technologies, ensuring efficient diagnostics and cost-effective solutions. By combining technical proficiency with ethical practices, we maintain our reputation as a trusted local leader in climate control systems. Our warehouse and office facility in Mamaroneck, NY, supports rapid response times for both planned projects and urgent repairs.
Services
Installation Maintenance Repair Commercial Services Emergency Service System Diagnostics Ductwork Fabrication Seasonal Maintenance Programs Zoning Systems Equipment Replacement
Details
  • Year established: 1982
Highlights and features
  • We provide 24/7 emergency HVAC service with rapid response times
  • Our technicians receive ongoing training in the latest HVAC technologies
  • We offer 10-year product warranties on new system installations
  • We guarantee upfront pricing with no hidden fees or hourly charges
  • Our in-house sheet metal fabrication enables custom ductwork solutions
What people say
Very responsive and punctual Provided tons of information Went out of their way Thorough inspection process Great to work with
Services
HVAC Installation
We install complete heating and air conditioning systems including ductless, high-velocity, and traditional configurations. Our in-house design team creates customized solutions for single-family homes and commercial buildings. All installations include 10-year product warranties and are performed by certified technicians using custom-fabricated ductwork when needed.
Emergency Repairs
Our 24/7 emergency repair service addresses urgent HVAC failures with rapid response times. Uniformed technicians carry common replacement parts and provide honest diagnostics before any work begins. We specialize in restoring heating during winter emergencies and cooling during summer heatwaves across Lower Westchester County.
Preventative Maintenance
Seasonal maintenance programs keep HVAC systems operating at peak efficiency. Our technicians perform comprehensive inspections, cleaning, and adjustments for all system types including forced air, radiant heat, and hydronic systems. Maintenance agreements include free service calls and priority scheduling during peak seasons.
Commercial HVAC
We provide tailored HVAC solutions for commercial properties including system upgrades, emergency service contracts, and energy-efficient retrofits. Our team handles installations in new commercial buildings and maintenance for existing systems across various business types in Westchester County.
System Diagnostics
Our diagnostic services identify HVAC performance issues through comprehensive system evaluations. Technicians use advanced tools to assess efficiency, detect leaks, and measure airflow. We provide clear explanations of findings and cost estimates before any repair work begins, ensuring informed decision-making for homeowners and businesses.
People
John Top
CEO
John Top leads Alex Heating & AC's strategic growth initiatives, overseeing operations across multiple countries. With decades of HVAC industry experience, he focuses on maintaining service quality standards and expanding the company's technical capabilities.
Paul King
Dispatching
Paul King manages service dispatch operations, ensuring efficient technician deployment for emergency and scheduled HVAC services. He coordinates response logistics to maintain rapid service times across Lower Westchester County.
George Road
Driver Manager
George Road supervises vehicle operations and technician transportation logistics. He ensures service vehicles remain fully equipped with essential parts and tools for efficient on-site HVAC repairs and installations.
John Stors
Warehouse Manager
John Stors oversees inventory management and parts distribution for HVAC installations and repairs. He maintains warehouse operations that support same-day service capabilities and custom ductwork fabrication.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for residential and commercial heating and air conditioning systems, including emergency service and seasonal maintenance programs.
Do you offer 24/7 emergency service?
Yes, our 24/7 emergency service responds to HVAC failures at any time with trained technicians and essential replacement parts.
What areas do you service?
We serve residential and commercial clients throughout Lower Westchester County, New York, including Mamaroneck and surrounding communities.
Do you provide warranties on installations?
All new HVAC installations include manufacturer warranties up to 10 years on parts, with service availability for warranty-covered repairs.
How do you handle pricing estimates?
We provide upfront pricing after system diagnostics, with no hourly charges - you receive a complete job cost estimate before any work begins.
Are your technicians certified?
Our team includes certified HVAC professionals who receive ongoing training in the latest heating and cooling technologies and repair methods.