East Coast Air Design Inc.

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About East Coast Air Design Inc.
East Coast Air Design Inc. operates from Holtsville, New York, serving homeowners and businesses throughout Suffolk County and Nassau County on Long Island. The contractor holds a 4.7-star rating compiled from 44 customer reviews, reflecting consistent service quality across residential and commercial projects. Their team handles heating systems, air conditioning units, and indoor air quality solutions, functioning as a full-service HVAC provider for the Long Island region.
The company distinguishes itself through preventative maintenance plans designed to extend equipment lifespan and reduce emergency repairs. They offer free estimates for new installations and repairs, helping customers make informed decisions without pressure. Their service portfolio covers central air systems, heat pumps, furnaces, and ductless mini-split units, with access to high-quality parts and materials for replacements. The company emphasizes honest recommendations and dependable workmanship over upselling unnecessary services.
Multiple reviewers highlight technician Jose by name for his professional approach and technical knowledge. One customer described Jose as explaining everything clearly while arriving on time, working efficiently, and leaving the workspace clean. Another reviewer noted Jose serviced a newly installed furnace and HVAC system in a home addition, praising his knowledge and neat work. The office staff, particularly Erin, receives consistent recognition for responsiveness and ease of scheduling, with one customer noting over a decade of satisfied service with the company.
What Customers Say
Eight reviews consistently award five stars, with technician Jose mentioned by name in four separate reviews for his diagnostic skill, cleanliness, and friendly demeanor. Office staff member Erin appears in two reviews praising her scheduling assistance. Reviewers describe the company as knowledgeable, neat, professional, and responsive, with multiple customers noting long-term relationships spanning over ten years.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–4 PM |
| Tuesday | 8 AM–4 PM |
| Wednesday | 8 AM–4 PM |
| Thursday | 8 AM–4 PM |
| Friday | 8 AM–4 PM |
| Saturday | Closed |
Services
Air Conditioning Installation
Professional AC installation for central systems, heat pumps, and ductless mini-splits throughout Long Island homes.
Heating System Service
Installation and repair of furnaces, heat pumps, and air handlers for residential and commercial properties.
AC Repair & Maintenance
Diagnostic services, component repair, and tune-ups to restore and maintain cooling system performance.
Commercial HVAC
Heating and cooling solutions designed for business properties, including system design and installation.
Indoor Air Quality
Services focused on improving air circulation and reducing pollutants inside residential and commercial spaces.
Ductless Mini-Split Systems
Installation and service of ductless mini-split units for homes without traditional ductwork.
Preventative Maintenance Plans
Scheduled service agreements designed to extend equipment life and prevent unexpected breakdowns.