Most HVAC contractors come from the trade. They started swinging tools at 19 and never stopped. My path here was very different — and Cool Season is very different too. We're not just an HVAC company. We're a family business. And we're proud of that.

My Name Is Halis "John" Can

Most of my customers and friends in Cumming call me John. "Halis" is a beautiful name from my heritage, but I learned years ago it's tough to pronounce in English. So I started introducing myself as John when I first came to the U.S., and it stuck. Either name works — same person.

There's something I should mention about my real name. In Turkish, "Halis" means clean, pure, honest, and true. My parents chose it intentionally, and I've always tried to live up to it. That word — "honest" — is the foundation everything I do is built on, including this company.

From Mathematics Teacher to HVAC Founder

I first came to the United States in 2006. From 2006 to 2009, I worked as a public school mathematics teacher in Ohio — teaching at both elementary and high school levels. Three years of standing in front of American classrooms, breaking down complex problems into simple steps, making sure every student understood the "why" behind the answer.

Teaching math to American kids taught me skills I never imagined would translate to HVAC: patience, clear communication, and the discipline to follow a process from beginning to end without skipping steps. Looking back now, those teaching years were the foundation for everything I do today.

In 2009, I returned to Turkey to finish some projects I had started. While there, I went back to school for civil engineering. I'd always loved how things were built — from foundations to systems to the way buildings actually function for the people inside them. The engineering coursework brought together everything I'd been thinking about: structural systems, mechanical systems, mathematics applied to real-world buildings.

Coming Home to Georgia

In 2016, my family and I moved permanently to Georgia. Cumming and the surrounding North Atlanta area felt like home almost immediately — the community, the climate, the pace of life. We've been here ever since.

Formal HVAC Education at Interactive College of Technology

When I decided to pivot into HVAC, I didn't take shortcuts. I enrolled in the formal HVAC program at Interactive College of Technology (ITC) and committed to learning the trade properly — through structured coursework, lab work, and exams.

I completed the program and graduated with Honors in 2016.

For me, this was important. A lot of HVAC technicians learn the trade through whatever exposure they happen to get — picking up bits and pieces on job sites without ever building a comprehensive foundation. I wanted the foundation. Mathematics, refrigeration theory, electrical systems, combustion principles, code compliance — taught systematically, then tested rigorously.

Combined with my math teaching background and civil engineering coursework, the ITC program gave me a deeper technical foundation than most HVAC contractors ever build.

"The Professor"

When I started working at HVAC companies in metro Atlanta, my background showed up immediately. Most technicians learn the trade through years of repetitive exposure. I learned it the way I'd learned everything else — through systematic study, mathematical reasoning, and pattern recognition.

My coworkers started calling me "the Professor." It was partly a joke about my teaching background, and partly because I'd diagnose complex problems faster than experienced techs by reasoning through them mathematically. Refrigerant pressures, superheat/subcooling calculations, electrical troubleshooting — these are math problems wrapped in mechanical equipment. And I'd been solving math problems for decades.

That same diagnostic speed showed up in business outcomes. Most HVAC companies promote technicians to manager level after 5-6 years of field experience. After watching how I worked, my company promoted me to a manager position within 6 months of joining. The math background that I thought wouldn't matter in HVAC turned out to be the single biggest advantage I brought to the work.

Earning My Contractor License

By 2022-2023, I had accumulated enough field experience and technical depth to sit for Georgia's HVAC contractor licensing exam. The state's Non-Restricted Air Conditioning Contractor license is one of the most rigorous credentials in our industry — covering electrical, refrigerant handling, mechanical systems, code compliance, and business law.

In 2023, I passed the exam and earned my Non-Restricted Air Conditioning Contractor License — License Number CN211564.

This license isn't decorative. It legally authorizes me to perform full HVAC contractor work in Georgia, sign off on installations, pull permits, and operate as a fully licensed contractor. Not every "HVAC company" you'll find online has a properly licensed contractor running it. Cool Season does.

My Wife Özde — The Reason This Company Exists

I have to mention my wife Özde. None of this — not the career change, not the certifications, not the company — happens without her.

When I decided to leave a stable HVAC company management position to start my own business, it was a risky move for our family. Long hours building a customer base. Tight finances during the early years. The constant uncertainty of running a small business. Through all of it, Özde stood beside me with steady support, patience, and belief in what we were building.

Behind every honest contractor you meet, there's usually a partner who made the work possible. Özde is mine. Cool Season exists because she made it possible.

Founding Cool Season Heating and Cooling

I founded Cool Season Heating and Cooling in 2017 to build the kind of HVAC company I'd want to hire myself — and the kind of company I'd want my own family to be part of.

I'd seen too many things in this industry I didn't want to replicate. Homeowners pressured into unnecessary equipment. Technicians rewarded for upselling rather than solving problems. "Diagnostic fees" that mysteriously tripled once a contractor was inside the house. Technicians paid commission instead of fair hourly wages.

Cool Season was built to be the opposite of all that.

A Family-Owned Business

Cool Season Heating and Cooling is genuinely a family company. Not in the marketing sense — in the real sense.

My daughter runs the marketing, sales, and business operations side of Cool Season. She brings the modern business mindset, the customer experience focus, and the organizational skill that takes a small contractor and turns it into a real company. If you've called us and had a smooth experience scheduling, gotten a clear written estimate, or received a follow-up call after service — that's her work.

My two younger sons are still in school — middle school and elementary. They come to the shop sometimes after school. Right now their main job is helping carry empty AC equipment boxes around the warehouse, and honestly, they love every minute of it. They tell anyone who'll listen that they want to be HVAC technicians like their dad someday. (Whether they actually pursue it or not, I'm proud they see this work as something worth doing.)

This matters because when you hire Cool Season, you're not hiring a faceless corporation. You're hiring a family that has roots in Cumming, that's invested in the long-term success of this community, and that has a name to protect for the next generation.

What Makes Cool Season Different

After running this company in Cumming, Forsyth County, Alpharetta, Roswell, Milton, and Johns Creek since 2017, here's what we've built into how we operate:

Our Technicians Aren't Paid on Commission

Every other HVAC company I worked for paid their technicians a percentage of every sale. The unspoken truth: this incentivizes overselling. A tech earning 15% commission on a $9,000 system replacement makes way more than they would on a $300 repair — even if the repair is what you actually need.

Our technicians earn an honest hourly wage. They're not pressured to upsell. When they tell you that you need a $250 capacitor instead of a $9,000 system, they make the same money either way. The result is honest recommendations every time.

We Do Manual J Load Calculations on Every Installation

Most contractors skip this step. They install whatever size system was there before, or they "size it up to be safe." Both approaches lead to long-term problems.

I never skip Manual J. Maybe it's the math teacher in me — I want the numbers right. Maybe it's the engineer in me — I want systems sized properly so they actually work for decades. Either way, this is non-negotiable in our installations.

We Take Time to Explain

Twenty years between teaching and engineering trained me to explain technical concepts in simple terms. When we diagnose a problem in your home, you'll understand exactly what's happening, what we're going to do about it, and why. No vague "your system has issues" diagnoses. No technical jargon designed to confuse.

If you've ever felt talked down to by an HVAC contractor, you'll appreciate the difference.

Bryant Factory Authorized Dealer

Bryant has thousands of contractors selling their equipment, but only a small percentage earn Factory Authorized Dealer status. The certification requires high customer satisfaction scores, NATE-certified technicians, extensive Bryant-specific factory training, adequate insurance, and periodic re-certification audits.

For homeowners, this means access to better warranty programs, direct manufacturer support, and quality assurance from Bryant's team.

NATE Certification Across the Team

Every technician on our team is NATE-certified — verifiable on NATE's public database. Most contractors have one or two certified techs and a handful of helpers without certification. We require NATE certification across the board because diagnostic accuracy genuinely matters for your home and your wallet.

Transparent, Written Pricing

Every job starts with a written quote. Before any work begins, you know exactly what we're doing and what it costs. If a repair turns out to be more involved than initially diagnosed, we stop and get authorization before continuing. You're never surprised by your invoice.

Our Values

The values we live by every day:

Honesty Over Short-Term Profit

When a customer can save money with a $250 repair instead of a $9,000 replacement, we tell them. Even when the higher-margin recommendation would be more profitable for us. My name literally means "honest" in Turkish — I take that seriously.

Education Over Sales Pressure

Twenty years as a teacher taught me that informed people make better decisions. We don't pressure customers. We educate them. Then we let them decide.

Quality Over Volume

We could do more jobs per day by skipping Manual J calculations, refrigerant evacuation, and pressure testing. We don't, because doing it right takes time and produces better long-term results.

Family and Community First

This is a family business serving family neighborhoods. We don't chase volume far from our base. The Cumming community supports us, and we believe in supporting it back.

Our Service Area

Cool Season Heating and Cooling provides residential HVAC services across:

• Cumming, GA (our home base)
• Alpharetta, GA (Avalon, Crabapple, Halcyon, Country Club of the South)
• Roswell, GA (Historic District, Horseshoe Bend, Country Club of Roswell)
• Milton, GA (The Manor, White Columns, Crooked Creek, Birmingham Road)
• Johns Creek, GA (Country Club of the South, St. Ives, Medlock Bridge)
• Suwanee, Sandy Springs, Buford, Canton, Dawsonville, Ball Ground
• Lake Lanier area communities

What We Do

Complete residential HVAC services:

• Air Conditioning: Repair, replacement, installation, maintenance, warranties
• Heating: Furnace repair, replacement, installation, maintenance, warranties
• Heat Pumps: Including federal $2,000 tax credit-qualifying systems
• Indoor Air Quality: Whole-home filtration, UV systems, humidifiers, dehumidifiers
• Maintenance Plans: Cooling, heating, and heat pump plans starting at $149/year
• Same-Day Repair Service: Including weekends and emergencies

Education and Credentials

• HVAC Diploma — Interactive College of Technology (ITC), Honors Graduate, 2016
• Bachelor's in Civil Engineering
• Mathematics Teaching Background — 10 years T.R. public schools (Izmir)
• Mathematics Teaching Background — 3 years U.S. public schools (Ohio)
• Georgia Non-Restricted Air Conditioning Contractor License — CN211564
• NATE Certified (North American Technician Excellence)
• EPA Section 608 Certified for refrigerant handling
• Bryant/Carrier Factory Authorized Dealer — premium dealer designation
• ENERGY STAR Verified Installations — third-party verified for quality
• Better Business Bureau — accredited business
• Manufacturer trained on Bryant, Carrier, Trane, Lennox, Goodman, Daikin, and other major brands

You can verify our license number with the Georgia Secretary of State Construction Industry Licensing Board. NATE certification is verifiable through NATE's public database.

What Customers Say

The honest measure of any service company is what their customers say about them. We're proud of the reviews we've earned from Cumming-area homeowners.

➤ Read our Google reviews

These are verified, dated, unfiltered reviews from real customers across our service area. We respond to every review — positive or negative — because feedback is how we improve.

Working With Us

If you're considering Cool Season Heating and Cooling for your HVAC needs, here's what to expect:

For Repair Service

Call (404) 416-6770. We typically have same-day or next-day appointments available, even during peak season. A NATE-certified technician will arrive on time, diagnose the problem, and provide written pricing before any work begins.

For New System Installations

Call (404) 416-6770 or schedule online. We'll come to your home for a free consultation, run a Manual J load calculation, and provide written quotes on your options. No high-pressure sales, no upsells, no obligation.

For Maintenance Plans

Sign up at any time during the year. Plans start at $149/year and most members tell us it's the best HVAC investment they make.

Get in Touch

We're here when you need us:

• Phone: (404) 416-6770
• Address: 105 Enterprise Dr. Suite E, Cumming, GA 30040
• Email: [email protected]
• Hours: Monday-Friday 8am-6pm, Saturday 8am-3pm
• Emergency Service: Available outside normal hours for true HVAC failures

A Personal Note

If you've read this far, thank you. I know choosing an HVAC contractor is a big decision — these systems cost thousands of dollars and live in your home for 15+ years.

What I can promise you is this: when you call Cool Season, you're getting a family-owned business built by someone who taught math to American kids for years before he ever picked up an HVAC tool. You're getting a fully licensed Georgia HVAC contractor (License CN211564) who graduated with Honors from Interactive College of Technology and whose name literally means "honest" in Turkish. You're getting a NATE-certified team that won't pressure you, won't oversell, and won't disappear after the install.

My wife Özde, my daughter, my sons, and I are invested in this company and this community for the long haul. That's the business we built. That's what we deliver every day.

Looking forward to earning your trust.

— Halis "John" Can Founder, Cool Season Heating and Cooling Georgia Licensed HVAC Contractor — CN211564

Cool Season Heating and Cooling — Family-owned and operated since 2017. Bryant Factory Authorized Dealer, NATE-certified technicians, ENERGY STAR Verified installations.