Experienced HVAC Services in Baltimore, MD 21202 - Johnnie's Heating & Air Conditioning
Baltimore, MD 21202
Local Business Overview
Johnnie's Heating & Air Conditioning is a trusted, family-operated HVAC and plumbing contractor serving Baltimore and surrounding communities since 1978. With 46 years of hands-on experience, we are a fully licensed, bonded, and insured company holding Master Gas Fitter, Master HVAC, and Master Plumber licenses. Our team provides reliable repair and maintenance for heating and cooling systems, along with specialized plumbing services like sewer line inspections and water backflow prevention. We handle installations of central air, gas and oil furnaces, ductless systems, and heat pumps, offering free quotes for all new projects. Every job is backed by our commitment to clear communication, lasting solutions, and a solid one-year workmanship warranty, because we believe in doing the job right for our neighbors.
FAQs
What does a professional plumbing inspection cover, and why is it important in Baltimore?
A thorough plumbing inspection from Johnnie's includes checking for leaks, assessing water pressure, inspecting sewer and drain lines for blockages or damage, and verifying that backflow prevention devices are functioning correctly. In Baltimore, where older homes are common, proactive inspections can identify issues like corroded pipes or root intrusion in sewer lines before they lead to costly water damage or major repairs. As licensed Master Plumbers, we provide a detailed report of our findings to help you maintain a safe and efficient plumbing system.
Do you offer a warranty on your HVAC and plumbing work?
Yes. Johnnie's stands behind all our work with a one-year workmanship warranty on services performed. We are also fully licensed, bonded, and insured for your protection. This warranty, combined with our 46 years of experience, means you can have confidence that any repair or installation we complete is built to last and backed by our commitment to quality.
How do you prevent outdoor condenser corrosion, a common issue for Baltimore HVAC systems?
Baltimore's humid climate and proximity to the coast can accelerate corrosion on outdoor AC units. During our seasonal maintenance visits, our technicians specifically clean the condenser coil and inspect the unit's cabinet for early signs of rust or deterioration. We can apply protective coatings if needed and ensure proper drainage to prevent water from pooling around the base. Proper installation from the start is also critical; we ensure units are placed on a stable, elevated pad to minimize ground moisture exposure, helping extend the lifespan of your system.
Business Offerings
- Plumbing inspection
Business Location & Hours
| Mon: | 7:00 AM - 5:00 PM |
| Tue: | 7:00 AM - 5:00 PM |
| Wed: | 7:00 AM - 5:00 PM |
| Thu: | 7:00 AM - 5:00 PM |
| Fri: | 7:00 AM - 5:00 PM |
| Sat: | 8:00 AM - 12:00 PM |
| Sun: | Closed |



















