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Leo Mendoza

HVAC Installation Technician
Charlotte, NC, United States

Professional Summary

EPA 608 Type II HVAC Installation Technician with 6+ years installing and commissioning residential and light-commercial systems across the Charlotte metro. Hands-on with heat pumps, gas furnaces, and ductless mini-splits—from rough-in through start-up and customer walkthrough. Known for clean brazed joints, accurate charge, tidy job sites, and clear homeowner communication that keeps warranty callbacks low.

Employment History

HVAC Installation Technician
Piedmont Climate Systems · Charlotte, NC
Mar, 2022 · Present
Lead residential and light-commercial installs of heat pumps, furnaces, air handlers, and ductless mini-splits (2–5 ton typical), averaging 8–12 completed systems per month. Assist load-calc reviews (Manual J/S/D) with estimators; flag undersized returns and short duct runs before equipment is set. Perform start-ups: nitrogen pressure test, vacuum to micron target, weigh-in charge, and verify superheat/subcooling with manifold gauges. Handle warranty callbacks and punch-list items within 48 hours; document photos and readings in ServiceTitan. Enforce ladder, PPE, and refrigerant safety on every site; zero recordable incidents on installs led in the past 18 months.
Apprentice HVAC Installer
Carolina Comfort Co. · Concord, NC
Jun, 2019 · Feb, 2022
Ran sheet-metal duct, flex, and fittings for new construction and retrofit change-outs under journeyman supervision. Assisted refrigerant recovery, reclaim, and cylinder staging; labeled recovered refrigerants per shop SOP. Staged condensers, air handlers, and line-set kits; hung evaporators and set pads to manufacturer clearances. Helped with copper line-set routing, flare/braze joints, and condensate drain installs through finished spaces. Kept vans stocked with fittings, hangers, and consumables; reduced mid-day supply runs for the crew.
Warehouse Helper / Trade-School Co-op
Metro Mechanical Supply · Charlotte, NC
Aug, 2018 · May, 2019
Pulled and staged condensers, furnaces, coils, and line-set kits for counter and will-call HVAC contractors. Verified model numbers and serials against pick tickets; flagged damaged crates before truck load-out. Assisted receiving of refrigerant cylinders and sheet-metal stock; maintained organized aisle and rack locations. Supported Saturday co-op hours while enrolled in Central Piedmont HVAC diploma courses.

Education

HVAC Diploma / Certificate
Central Piedmont Community College · Charlotte, NC
2018 · 2019
High School Diploma
Independence High School · Charlotte, NC
2014 · 2018

Skills

EPA 608 Type II
Brazing & copper line-sets
Sheet-metal ductwork
Manifold & micron gauges
Mini-split / ductless installs
Residential heat pumps & gas furnaces
Load calc assist (Manual J/S/D)
ServiceTitan
OSHA-10
Customer communication
Nitrogen pressure testing
Vacuum & weigh-in charging

Courses

EPA Section 608 Type II
EPA
NATE Ready-to-Work
NATE
OSHA-10 Construction
OSHA