Heating & Cooling Services in Lake Mary, FL

Do you service Lake Mary, FL?

Yes. Chilly Billy Heating & Cooling serves Lake Mary, FL (ZIP code 32746) in Seminole County from our shop at 807 Sawdust Trail in Kissimmee. Same-day service is available when scheduling and parts allow.

Heating and cooling services in Lake Mary

• AC repair in Lake Mary — warm air, short cycling, water leaks, breakdowns
• AC installation and replacement in Lake Mary — free estimate with Manual J sizing
• AC maintenance in Lake Mary — tune-ups and the Family Comfort Plan
• Ductless mini-splits in Lake Mary — garages, lanais, and additions
• Heating repair in Lake Mary — heat pumps, heat strips, and furnaces
• Heating installation and replacement in Lake Mary
• Heating maintenance in Lake Mary — fall tune-ups before cold snaps
• Duct cleaning in Lake Mary — musty smells and dust
• Duct repair in Lake Mary — leaking or disconnected ductwork
• Duct installation in Lake Mary — Manual D design for rooms that never cool
• Attic insulation in Lake Mary — cut afternoon heat gain

Common AC and heating problems we fix in Lake Mary

• AC blowing warm air or not cooling — low refrigerant, a failing compressor, or a dirty condenser coil in Lake Mary's heat.
• Short cycling or a system that won't start — a thermostat, capacitor, or control-board fault we diagnose before quoting.
• Musty smells, uneven rooms, or dust with the AC running — usually leaking or dirty ductwork, an undersized return, or thin attic insulation.
• A system past its life or failing every season — a free replacement estimate with a Manual J load calculation, plus a free second opinion on another company's quote.
• No heat on a cold Central Florida night — heat-pump and furnace repair for the handful of nights a year it matters.

What to expect when you book service in Lake Mary

A repair visit starts with an $89 diagnostic ($0 for Family Comfort Plan members). We find the actual cause, explain it in plain language, and give you a written price before any work begins — options without pressure. Same-day service is available when scheduling and parts allow.

For a replacement we measure the load with a Manual J calculation instead of matching the old nameplate, and every Seminole County install is permitted and inspected. You get the closed permit for your records, and the work is backed by our written warranty.

Serving Lake Mary in Seminole County

Lake Mary is in Seminole County, north of Orlando. It is farther from our Kissimmee shop than our core neighborhoods, so same-day availability there depends more on the day's schedule; call and we will tell you honestly when a technician can be there.

Pricing, warranties, and plans for Lake Mary homeowners

• Repair visits start with an $89 diagnostic, $0 for Family Comfort Plan members. You approve a written price before any work.
• Complete-system replacement estimates are free and include a Manual J load calculation. A second opinion on another company's quote is free.
• Repairs are warrantied for one year on parts and one year on labor for systems ten years old or newer, and one year on parts with six months on labor for older systems. Installs carry a one-year base labor warranty, with extended options up to fifteen years.
• The Family Comfort Plan is $199 a year or $16.59 a month: two tune-ups a year, 10% off repairs, 5% off installs, and priority scheduling, with no auto-renew.
• We install Rheem, Goodman, and Trane and service every brand, working under Florida license CAC1821877. Financing is available through GoodLeap.

Other Seminole County communities we serve

Longwood, Altamonte Springs, Casselberry, Sanford, Oviedo, Winter Springs, Heathrow, Wekiwa Springs.