WELCOME TO

Breton Breeze Mechanical LLC

Breton Breeze Mechanical LLC provides licensed residential and commercial HVAC service across Southern Maryland. Heating, cooling, air quality, and water heater experts available 24/7.

Dependable Residential and Commercial Comfort Solutions

When it comes to year-round comfort, home and business owners across Southern Maryland rely on Breton Breeze Mechanical LLC. Located in Leonardtown, MD, our licensed and insured technicians deliver expert service in heating, cooling, air quality, and water heater systems within a 50-mile radius, including St. Mary’s, Calvert, Charles counties, and King George. We specialize in both residential and commercial HVAC, providing everything from small repairs and preventive maintenance to complete system design and replacements.

We operate 24/7 because HVAC problems can happen at any hour. Whether it’s a heat pump failing in January or an air conditioner freezing up in July, our team responds quickly with professional diagnostics, transparent pricing, and solutions that stand up to Southern Maryland’s demanding climate.

Who We Are

Breton Breeze Mechanical LLC was founded with a simple mission: to keep homes and businesses across Southern Maryland comfortable, efficient, and safe. Our experienced team brings the skill and knowledge required to handle everything from residential tune-ups to commercial equipment installations. We take pride in providing clear communication, fair pricing, and honest service recommendations—values that have earned us lasting relationships with property owners throughout the region.

Our team understands that HVAC systems are a long-term investment, and that every building has its own challenges—historic homes in Leonardtown, new construction in California, MD, or multi-unit commercial spaces in Waldorf. We take time to evaluate airflow, insulation, equipment sizing, and building layout to ensure every system performs efficiently for the long haul.

Why Southern Maryland Chooses Breton Breeze Mechanical LLC

When you choose Breton Breeze Mechanical, you’re not hiring a national franchise—you’re partnering with a local HVAC company that truly knows the area. Our technicians live and work in the same communities we serve, and we understand the unique needs of Southern Maryland properties. From waterfront humidity control to older duct systems and new energy code standards, we’ve seen it all. Every service call reflects our commitment to precision workmanship and reliable results.

We’re proud to be fully licensed and insured, and we maintain the highest safety and training standards in the industry. Our trucks arrive equipped for fast on-site repairs, our work areas are kept clean, and every installation is tested for performance before we leave your property. This dedication to quality ensures your comfort, safety, and satisfaction.

Comprehensive Heating and Cooling Solutions

Breton Breeze Mechanical LLC provides a full range of HVAC services for homes, offices, and light commercial buildings throughout Southern Maryland. Whether you’re facing an urgent breakdown or planning a complete system upgrade, our technicians deliver reliable results.

Heating Services

When winter temperatures drop, dependable heat is essential. We repair, install, and maintain furnaces, heat pumps, and hybrid heating systems that keep your property warm and efficient. If your furnace is short-cycling, making loud noises, or failing to start, our technicians perform thorough diagnostics to find the issue quickly.



For replacement projects, we install high-efficiency equipment that saves energy and provides steady, comfortable warmth. Each installation is carefully sized to your home or building, ensuring even heat distribution and long-term reliability. Regular maintenance plans help prevent mid-season breakdowns and keep manufacturer warranties intact.

Air Conditioning Services

Southern Maryland summers can be hot and humid, and a reliable air conditioning system is key to keeping your space comfortable. We service and install central air conditioners, ductless mini-splits, and packaged rooftop units. From refrigerant leaks and sensor malfunctions to airflow balancing and electrical repairs, our team handles every aspect of AC care.

When it’s time for a replacement, we offer high-efficiency systems that cool more effectively while reducing energy costs. Each new installation includes careful calibration and system testing, so you get consistent comfort and improved humidity control from day one.

Heat Pump Installation and Service

Heat pumps are one of the most versatile solutions for homes and businesses in Southern Maryland. They provide both heating and cooling in one efficient package. Our technicians are trained to service standard, variable-speed, and dual-fuel heat pumps, ensuring quiet operation, balanced airflow, and energy savings year-round. If you’re upgrading from a traditional system, we’ll evaluate your space, recommend the best model, and install it for optimal performance.

Indoor Air Quality Solutions

Indoor air quality affects comfort, health, and energy efficiency. Breton Breeze Mechanical installs air cleaners, UV lights, filtration systems, and humidity controls to help you breathe cleaner, healthier air. Dust, pollen, mold spores, and allergens can all accumulate in HVAC systems, so regular cleaning and proper ventilation are essential. Our technicians evaluate your home’s airflow, recommend the right filtration, and ensure your equipment maintains clean, balanced air throughout your property.

Indoor Air Quality Solutions

Indoor air quality affects comfort, health, and energy efficiency. Breton Breeze Mechanical installs air cleaners, UV lights, filtration systems, and humidity controls to help you breathe cleaner, healthier air. Dust, pollen, mold spores, and allergens can all accumulate in HVAC systems, so regular cleaning and proper ventilation are essential. Our technicians evaluate your home’s airflow, recommend the right filtration, and ensure your equipment maintains clean, balanced air throughout your property.

Water Heaters — Gas and Tankless

We service and install both traditional gas water heaters and modern tankless systems. A tankless water heater provides endless hot water while taking up less space and using energy only when needed. If your current unit is leaking, inconsistent, or outdated, we’ll help you choose the right replacement and install it safely with proper venting and gas connections. For larger properties, we also provide commercial-grade water heating solutions built for durability and performance.

Commercial HVAC Expertise

Breton Breeze Mechanical LLC supports a wide range of commercial clients, from small businesses to light industrial facilities. We maintain and repair rooftop units, split systems, zoning controls, and ventilation equipment, helping business owners avoid costly downtime. Our team schedules service visits around your hours of operation and provides detailed reports after each appointment, so you know exactly how your system is performing and what maintenance is recommended.

Preventive Maintenance

Routine maintenance is the best way to keep HVAC systems operating efficiently and prevent unexpected repairs. Our maintenance plans include filter replacement, coil cleaning, refrigerant checks, and full system inspections. We identify worn parts before they cause breakdowns and provide detailed records for your peace of mind. With consistent care, your equipment lasts longer, uses less energy, and provides better comfort.

Quality You Can See

Our work speaks for itself. From heat pump replacements to full HVAC installations, Breton Breeze Mechanical LLC completes every project with attention to detail and craftsmanship. We take pride in neat line sets, secure electrical connections, and clean final presentations that reflect the quality of our service.

Frequently Asked Questions

Get in Touch with Breton Breeze Mechanical LLC

When your comfort depends on reliable heating and cooling, trust the experts at Breton Breeze Mechanical LLC. We proudly serve homes and businesses throughout Southern Maryland, providing prompt, professional HVAC service every day of the year.