Licensed & insured HVAC contractor · Central Ohio(937) 322-5730 · admin@mando.com.sa

Heating, cooling and air quality services

Repairs, replacements and maintenance for every major brand: Trane, Carrier, Lennox, Goodman, Rheem, Daikin, Mitsubishi and more.

Furnace & heat pump service

Furnace & heat pump service

Ohio winters are no joke. We repair and replace gas furnaces, heat pumps, boilers and dual-fuel systems, and we keep common parts on every truck so most repairs are finished on the first visit.

  • Ignitor, flame sensor and gas valve repair
  • Heat exchanger and carbon monoxide safety testing
  • High-efficiency 96–98% AFUE furnace installation
  • Cold-climate heat pumps and dual-fuel setups
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Air conditioning repair & installation

Air conditioning repair & installation

When the humidity hits 80%, you want a technician who shows up fast. We fix capacitors, contactors, fan motors and refrigerant leaks, and install systems properly sized for your home.

  • Same-day AC repair, most days
  • Refrigerant leak detection and repair
  • 14.3–21 SEER2 system replacements
  • Manual J load calculations on every install
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Ductless mini-split systems

Ductless mini-split systems

Mini-splits are ideal for rooms that never feel right: bonus rooms, garages, sunrooms and older homes without ducts. Each indoor head has its own controls.

  • Single- and multi-zone systems
  • Whisper-quiet operation as low as 19 dB
  • Heating down to -13°F with hyper-heat models
  • Clean line-set covers that match your siding
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Indoor air quality

Indoor air quality

Dust, allergies, dry winter air and musty basements are all fixable. We test first and recommend only what will make a real difference.

  • MERV 11–16 media filter cabinets
  • UV germicidal lights and air purifiers
  • Whole-home humidifiers and dehumidifiers
  • Duct sealing and airflow balancing
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Smart thermostats & zoning

Smart thermostats & zoning

A smart thermostat can trim 8–10% off heating and cooling costs. We install, wire and configure them so they actually work with your equipment.

  • ecobee, Google Nest, Honeywell Home
  • Multi-zone damper systems
  • Remote sensors for hot or cold rooms
  • App setup and a quick walkthrough
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Light commercial HVAC

Light commercial HVAC

Downtime costs money. We maintain and repair rooftop units and split systems for small businesses, with priority scheduling for maintenance customers.

  • Rooftop unit (RTU) service up to 25 tons
  • Quarterly preventive maintenance
  • Restaurant make-up air and exhaust
  • Detailed service reports for property managers
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Pricing

Straightforward rates

Every job is quoted in writing before work begins. These are our standard starting prices.

ServiceStarting atNotes
Diagnostic visit$89Waived if you approve the repair
Furnace or AC tune-up$129Free for Comfort Club members
Capacitor replacement$185Includes part and labor
Smart thermostat install$149Labor only, customer-supplied device
Ductless mini-split (single zone)$3,900Installed, with line-set cover
Full system replacementFree quoteFinancing from 0% APR for qualified buyers

Furnace quit at 2 a.m.? AC struggling in July?

Call our Canal Winchester office and talk to a real person who knows your neighborhood.