ATOZ HOME & COMMERCIAL SERVICES
945-302-8811
ATOZ HOME & COMMERCIAL SERVICES
LICENSED HVAC.
ONE CALL.
AtoZ handles HVAC installations, replacements, and repairs, residential and commercial. Cesar is personally licensed. No subcontractors.
HVAC LICENSE
#1453223644
Personally licensed. Not subcontracted. One accountable contractor for your entire HVAC scope.
HVAC SERVICES
NEW SYSTEM INSTALLATIONS
SYSTEM REPLACEMENTS
HVAC REPAIRS
COMMERCIAL HVAC
EMERGENCY
SERVICE
REMODEL HVAC INTEGRATION
READY TO START A PROJECT?
Get a free on-site estimate. No obligation.
LICENSED ELECTRICAL.
ONE CALL.
Panel upgrades, remodel wiring, new circuits, and commercial electrical.
LICENSED ELECTRICAL
RESIDENTIAL + COMMERCIAL
LICENSED ELECTRICAL
RESIDENTIAL + COMMERCIAL
ELECTRICAL LICENSE
#1453223644
Personally licensed. Not subcontracted. One accountable contractor for your entire electrical scope.
ELECTRICAL SERVICES
PANEL UPGRADE
OUTLET + FIXTURE INSTALLATION
REMODEL WIRING
NEW CONSTRUCTION ROUGH-IN
COMMERCIAL ELECTRICAL
CIRCUIT ADDITIONS
CLIENT REVIEWS
Licensed HVAC and Electrical Contractor in McKinney TX
Residential and Commercial DFW
AtoZ Home & Commercial Services is a licensed HVAC and Electrical contractor based in McKinney, TX, serving homeowners and commercial clients across Frisco, Allen, Plano, Prosper, and the DFW Metroplex. Unlike most general contractors in the area, Cesar Morillo holds his own HVAC and Electrical licenses. That distinction matters more than most homeowners realize until they're mid-renovation and their GC is waiting on someone else's schedule.
Licensed HVAC contractor in McKinney and DFW
When your AC goes down in a Texas summer, the last thing you want is a contractor who has to call someone else. AtoZ handles HVAC directly, new system installations, full unit replacements, repairs, and commercial HVAC work. Cesar is personally licensed, which means the person who scopes your HVAC project is the same person accountable for the installation. No middleman. No markup passed through a subcontractor. One call, one contractor, one warranty on the work.
For homeowners planning a full renovation, HVAC integration is one of the most disruptive trades to coordinate. When it's handled under the same contract as your flooring, bathrooms, and electrical, your timeline stays clean.
Licensed electrical contractor in McKinney and DFW
Electrical work in a renovation touches almost every room. Panel upgrades, circuit additions, remodel wiring, outlet and fixture installation, these aren't tasks you want handed off to whoever a GC happens to call that week.
AtoZ handles electrical in-house under Cesar's own license. That means the electrical scope of your remodel is managed by the same contractor running the rest of the job.
For standalone electrical needs, a panel upgrade before a home sale, new circuits for a kitchen remodel, outlet additions for a home office, AtoZ handles those directly as well. Licensed, permitted where required, and done by someone who will be there for the whole job.
The trade advantage most DFW contractors don't have
Most general contractors in McKinney and Frisco manage renovations but license out the hard parts. HVAC goes to one company. Electrical goes to another. Plumbing to a third. Every trade is a separate contract, a separate schedule, and a separate point of failure when something doesn't coordinate correctly.
AtoZ holds the licenses in-house. One contractor. Every trade. That's the difference.
Serving: McKinney TX · Frisco TX · Allen TX · Plano TX · Prosper TX · Celina TX · The Colony TX · Princeton TX · Lewisville TX · and across the DFW Metroplex.
ATOZ HOME & COMMERICAL SERVICES
McKinney, TX - Serving DFW
© Copyright 2026. AtoZ Home & Commercial Services. All rights reserved.
© Copyright 2026. AtoZ Home & Commercial Services. All rights reserved.