Meet Our Team

At All Seasons Air Conditioning, we always work on providing a quality job that exceeds your expectation. With a team of highly-trained and certified technicians, you are guaranteed that our job is done professionally and thoroughly. Whether it’s a simple installation or complex repair job, we perform our job while keeping your safety and comfort in mind. Our technicians have earned years of training and experience to offer workmanship at its finest.

All Seasons Air Conditioning Technicians

We are committed to providing our clients and loyal customers with prompt, expert-level and efficient services as expected from us. With All Seasons Air Conditioning, your comfort is best-taken care of!

Dennis T. Costello

Dennis T. CostelloOwner/President

Dennis M. Costello

Dennis M. CostelloVice President/Sales

Michael Costello

Michael CostelloSales and Engineering

Donna Delaney

Donna DelaneyVice President – Operations

Dawn Gallagher

Dawn GallagherVice President – Finance

Richard Spinelli

Richard SpinelliInstallation Supervisor



All Seasons Team