About Davinci Mechanical

Commercial HVAC & Refrigeration — straightforward and reliable

We keep businesses comfortable and open with clear communication, clean workmanship, and maintenance that prevents breakdowns. No gimmicks—just professional service you can count on.

Time in field
• 15 years
Experience
15+ years commercial HVAC & refrigeration
Availability
Same-day diagnostics when possible

From technician to owner

After 15 years in the field, working rooftops, kitchens, and mechanical rooms across OC, Tom Walsh founded Davinci Mechanical to do the simple things exceptionally well: answer the phone, show up prepared, test before we touch, explain clearly, and fix what actually matters.

We focus on everyday commercial equipment—rooftop and split HVAC, walk-in/reach-in coolers, refrigeration systems, and commercial water heaters. No upsells. No jargon. Just clean work with photos and readings so you know what was done and why.

That mindset built a steady roster of restaurants, retail, offices, and schools who value reliability over hype. We’re small on purpose so quality never slips.

Tom Walsh — Founder of Davinci Mechanical

How we work

  • Test first: Accurate diagnostics beat trial-and-error every time.
  • Clean workmanship: Neat installs and repairs that hold up.
  • No pressure: Options explained in plain English, photos included.
  • Preventive mindset: Fix the cause, not just the symptom.

Who we serve

Restaurants, retail, offices, schools, and small warehouses across Orange County. We prioritize businesses that need steady temperature and hot water to stay open.

  • Commercial HVAC repair & change-outs
  • Walk-in/reach-in cooler & freezer service
  • Ice machine troubleshooting
  • Commercial water heater install & service
  • Emergency diagnostics (as available)
  • Quarterly / Bi-annual maintenance

Our maintenance philosophy

Most clients run quarterly or bi-annual PM. We focus on the tasks that actually prevent service calls: coil cleaning, belts & bearings, electrical checks, refrigerant readings, drain service, and box-temp verification on coolers. Every visit includes photos and notes so you can plan repairs—not guess.

Talk to Tom

Need commercial HVAC, refrigeration, cooler service, or a water heater quote? We’ll give you clear options and keep it simple.