About

About Us

Innovating Mechanical Excellence Since 2012

13+

Years of Experience
In HVAC Business

Five Seasons Mechanical has committed to providing dependable, high-quality mechanical services across Georgia. Our team combines deep technical knowledge with a client-first approach to ensure every project exceeds expectations, from installations to ongoing maintenance.

Proven Field Experience Since 1990
Full-Service Mechanical Contractor
Trusted by Florida’s Top Facilities

Emergency Response When It Matters
Preventive Maintenance Experts
Energy Efficiency Built Into Every Project

Projects Completed

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Awards

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Team Members

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Years Experience

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Our Mission

At Five Seasons Mechanical, our mission is to enhance the quality of life for our community by delivering dependable, high-performance mechanical solutions. We are committed to excellence in HVAC and refrigeration services, preventative maintenance, and indoor air quality, ensuring safe, efficient, and sustainable environments for our clients across Atlanta and surrounding areas.

Core Values

Integrity First: We operate with honesty and transparency, building trust with every client and partner.
Customer Focus: Our clients’ needs guide every decision, with personalized solutions and responsive service.
Safety Commitment: Safety is paramount—our team adheres to strict protocols to protect people and property.
Innovation & Excellence: We embrace cutting-edge technology and industry best practices to deliver superior results.
Community Engagement: We strive to positively impact our local communities through responsible business and outreach.

Our Legacy

Founded in 2012 in Peachtree Corners, GA, Five Seasons Mechanical has grown steadily by earning the trust of private, corporate, and government clients alike. Our trained professionals bring expert craftsmanship and unmatched dedication to every project, from complex design-build jobs to routine maintenance and diagnostic assessments. Over the years, we’ve built a reputation for exceptional quality, reliable service, and innovative solutions that stand the test of time.

Who We Are

What Sets Us Apart?

From cutting-edge technology to a dedicated in-house team, we prioritize transparency, safety, and long-term performance in every project, ensuring peace of mind for our clients across Metro Atlanta and beyond.

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Decades of Collective Knowledge

With over 40 years of combined industry experience, our team brings expert insight and trusted craftsmanship to every project, ensuring solutions that last.

Community-Centered Approach

Rooted in Atlanta and serving surrounding areas, we prioritize building strong client relationships through transparent communication and dependable service.

Safety and Compliance First

We strictly follow OSHA standards and maintain all necessary certifications, keeping our team and your facilities safe at all times.

Leadership

Driven by Expertise
United by Purpose

Jay Halloran

Chief Executive Officer

Allen Irvine

VP of Sales

Bill Kirk

Chief Financial Officer

Krystyna Ermer

Chief Integration Officer

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Certified. Connected.

Industry Affiliations That
Build Trust

What Makes Us Different

Engineered for Performance.
Driven by Expertise.

Backed by Proven Industry Experience

Over a decade of hands-on service in Georgia’s toughest environments, delivering solutions that stand the test of time across a wide array of diverse commercial and industrial projects.

In-House Experts, Every Step

Our skilled team handles every phase, from design and installation to maintenance and emergency repairs, ensuring consistency and accountability without relying on subcontractors.

Dependable Service Around the Clock

When urgent issues arise, Five Seasons Mechanical responds fast with 24/7 support and proactive care that minimizes downtime and keeps your operations running without interruption.

Reviews

Client
Testimontials

4.0

(47+ Reviews)

"Really appreciate all the help you have been providing. Glad to have you back as our AC company."

Brad Herrell

Bass Pro Shops

"You took on the tough stuff with grace and ease, and I really appreciate it. You remained flexible to all of the changes that I asked of you. All of the emergency service calls dispatched by you and your team were amazing. And in a few panic situations, you always came through and put me at ease. I always received the best service, making it feel like personal service, from you, Gil, Jay, Frank, Martin and the rest of your amazing technicians."

Joy Kramer

FBI Miramar

“I’ve been meaning to write this email and express my appreciation for Stephen Azzarelli. He is the most thorough, thoughtful tech I have met in my 13 years doing this work. Today is a prime example and testament to his commitment and concern for his clients.”

Lisa Litwak

Ferrari of Ft. Lauderdale

"Waldo was knowledgeable and said he cleaned and fixed the drain lines at the various AC units. The whole club feels cooler and no leaks in the circuit training area, which is great. Thank you for your help with this, I appreciate it. "

Courtney Vanasse

LA Fitness

"Peter is a very technical gentlemen with a wealth of knowledge, and willing to teach others. I want to make sure these type of associates are recognized for their performance and customer-first approach. Here at the Ritz Carlton, Key Biscayne Miami we like to give credit for those that are willing to go the extra mile to help out the customers. Please, on behalf of the Ritz Carlton Engineering family, share with Peter’s direct boss his rock star attitude and service!“

Jessie Artidiello

Ritz Carlton Miami

"I am writing on behalf of Royal Caribbean Group to express our deepest gratitude for the outstanding service provided by your maintenance crew this past weekend. The annual cooling tower maintenance on our four cooling towers was executed flawlessly, and we are truly impressed by the professionalism and dedication demonstrated by your team."

Levensaint Pedro

Royal Carribean Group

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