The AZ Approach
Local service.
Personal accountability.
AZ Electrical HVAC is a hands-on, Commack-based business built around clear communication, dependable workmanship, and showing up when it matters.
Our Story
One trusted call for your home’s essentials.
AZ Electrical HVAC was founded by owner Daniel Zajaczkowski on a simple idea: Long Island homeowners deserve an electrician and HVAC pro who answers the phone, shows up on time, and does the job right the first time.
Based in Commack, NY, we bring electrical, heating, and cooling under one roof — so you have a single, reliable team for your home’s most important systems. No call centers, no runaround, no cut corners. Just honest, code-compliant work from people who care about their reputation in the community.
Whether it’s a panel upgrade, a new AC system, or a 2 a.m. emergency, we treat your home with the same respect we’d expect in our own.
On The Road
Look for our van in your neighborhood.
What We Stand For
Values you can feel in the work.
Clear Communication
We explain the problem and the plan in plain English.
Quality Workmanship
Clean, code-compliant work that’s built to last.
Show Up On Time
We respect your schedule and your home.
Local Accountability
We live and work here — your neighbors are our reputation.
Need help now?
Ready to work
with a team you trust?
24-Hour Emergency Service
Let’s get it taken care of.
Call for service or tell us what’s going on.
Call AZ(631) 855-5229
Email AZazelectricalhvacinc@gmail.com
