R J Lange & Son Inc
State-Licensed A/C Contractor · FL #CAC042744 (Certified — statewide)R J Lange & Son Inc is a Florida-licensed air-conditioning and HVAC contractor, holding DBPR license number CAC042744. This Certified Air Conditioning Contractor license, active since 1987, authorizes the firm to contract for heating, ventilation, and air-conditioning work throughout the entire state, unlike a Registered license which is limited to a specific local jurisdiction. Based in Ozona, Pinellas County, the company serves Florida homeowners and property owners seeking a properly licensed contractor for their air-conditioning or heating needs.
License and training record
| License | CAC042744 (certified air conditioning contractor) |
|---|---|
| First issued | November 19, 1987 |
| Status on November 9, 2026 | Active, expires August 31, 2028 |
| CE courses on file | 70 (100 hours) |
| Hours, Sep 2024 – Aug 2026 cycle | 14 |
| Latest Florida Building Code edition studied | 2020 |
| Board discipline reports, July 2021 – Nov 2026 | None listed |
| Google rating (Sep 2026) | 4.5 from 2 reviews |
| Hours listed on Google | Mon–Fri 8 AM–5 PM; Sat–Sun closed |
| Website | rjlangeandson.com |
| Google Maps | View listing |
refrigerants and refrigerant handlingindoor air quality and ventilationenergy efficiency and the Florida energy codeHVAC system design and duct distributionwind mitigation and hurricane requirementsmold and moisture problemslead, asbestos and hazardous materials safety
Most recent courses
- Doe Advanced Wall Framing July 2026 · 1 hr
- Preventing Mold in New Construction July 2026 · 1 hr
- Wind Mitigation Methodology Retrofits for Existing… July 2026 · 2 hrs
- Florida Laws and Rules – Chapter 489 July 2026 · 1 hr
- Hand & Power Tools Safety July 2026 · 1 hr
Sources: Florida DBPR licensee roster and continuing-education course file, downloaded November 9, 2026; CILB discipline reports; Google Maps listing data, September 2026. Florida requires at least 14 hours of continuing education for each two-year renewal (F.S. 489.115). Verify this license at MyFloridaLicense.com.
