Heating & Cooling Specialist
Your Home. Your Comfort. Our Commitment.
Controlled Climates LLC is an owner-operated HVAC contractor led by Donell Oliver, providing trusted heating and air conditioning services across Westchester County.
Westchester Contractor
Owner-Operated Care
At Controlled Climates LLC, we believe every homeowner deserves reliable comfort, honest service, and exceptional workmanship.
Founded in 2016 by Donell Oliver, Controlled Climates is backed by 25 years of hands-on HVAC experience and a decade of dedication to serving homeowners throughout Westchester County, NY.
Based in Port Chester, we specialize in residential heating and air conditioning installation, repairs, replacements, and preventive maintenance.
We understand that your home is one of your most valuable investments. That’s why we approach every job with attention to detail, honest recommendations, and a commitment to getting it right.
Whether we’re restoring comfort to your home or helping you select a new heating and cooling system, our goal is to provide dependable solutions, lasting performance, and the peace of mind you deserve.
Controlled Climates LLC — Your Comfort Is Our Commitment.
Experience You Can Trust. Service You Can Feel Good About.
Experience matters when it comes to your home’s comfort. With 25 years in the HVAC industry, we bring the knowledge and hands-on expertise needed to diagnose problems accurately and deliver dependable solutions.
What Drives Us
Dedicated Westchester County HVAC contractor standards backed by licensing, free estimates, and 24-hour emergency response.
Licensed Westchester County Home Improvement Contractor # WC-28564-H16 adhering to strict building codes.
Accurate, no-obligation project estimates for new heating and cooling system installations and replacements.
Prompt mobile HVAC dispatch serving homes and businesses across all communities in Westchester County.
Contact our team today to schedule service or request a free estimate on your heating or cooling system.
Mobile Service Area
Controlled Climates LLC provides prompt mobile heating and cooling services throughout all of Westchester County, NY.
(914) 441-7831
sunday
8:30 AM - 4:30 PM
monday
8:30 AM - 4:30 PM
tuesday
8:30 AM - 4:30 PM
wednesday
8:30 AM - 4:30 PM
thursday
8:30 AM - 4:30 PM
friday
8:30 AM - 4:30 PM
saturday
8:30 AM - 4:30 PM
Donell was professional effective and timely. In a crunch during winter with a gas valve leak he was able to get us back up and running quickly. The first service provider we tried couldn't "find" the problem. Said nothing was wrong...Wrong. It was leaking and Donnell solved the issue. Thanks Controlled Climates.
Cory Gahr
Free estimates on installations and repairs
Donell was professional effective and timely. In a crunch during winter with a gas valve leak he was able to get us back up and running quickly. The first service provider we tried couldn't "find" the problem. Said nothing was wrong...Wrong. It was leaking and Donnell solved the issue. Thanks Controlled Climates.
Cory Gahr
