B.L. James & Son is proud to bring professional, high-quality HVAC and plumbing services to Potomac, MD. Backed by decades of hands-on experience and a reputation for excellence, we're the go-to team for reliable heating, cooling, and plumbing solutions.
Schedule your HVAC & plumbing services in Potomac, MD.
Heating Services
We install, repair, and maintain a variety of heating systems, including furnaces, boilers, and high-efficiency heat pumps. Our expert technicians keep your home warm and energy-smart throughout the colder months.
Cooling Services
Stay cool and comfortable with expert AC installation, repair, and maintenance services. Whether you need a central air system or a ductless solution, we help you maximize efficiency and indoor comfort.
Plumbing Services
From leaky faucets and pipe repairs to new fixture installations and water pressure fixes, our licensed plumbers handle every project with professionalism and speed.
We also service and install both tank and tankless water heaters to keep your household running smoothly. Count on us for fast, dependable hot water service.
Decades of Experience. We’ve been serving homes and businesses across the DMV region for over two decades, earning a reputation for exceptional craftsmanship and trustworthy service.
Family-Owned & Customer-Focused. As a family-operated company, we believe in treating your home with respect and care. Our commitment to outstanding service shows in every job we do.
Comprehensive HVAC & Plumbing Expertise. From heating and cooling upgrades to detailed plumbing repairs, we offer end-to-end services with honest pricing and lasting results.
Quality You Can Count On. We use premium materials and follow rigorous safety standards to ensure your comfort systems are efficient, durable, and built to perform.
Looking for HVAC and plumbing services that combine reliability, quality, and care? At B.L. James & Son, we proudly serve Potomac, MD, with expert solutions designed to keep your home comfortable, efficient, and worry-free. From seasonal maintenance to urgent repairs, our experienced team delivers the highest level of service.
Schedule your HVAC & plumbing services in Potomac, MD.
You may want to view these pages:
Plumbing Problems That Can Disrupt Your Summer Party
Maximize Comfort and Protect Your Home with a Whole-House Dehumidifier
Please complete this form to request service from B.L. James & Son.
The B.L. James & Son team likes to move quick and reply to customer inquiries the same business day. Once we troubleshoot the issue, estimates are provided the same day or by the end of the next day. Our work begins the moment you call, and since we’re open 24 hours a day there’s no reason to wait. Call B.L. James & Son anytime, we’ll be there to help.
Named 2023 and 2024 Nextdoor
Neighborhood Fave
Named 2022 Best Emergency Plumber in Arlington by Expertise.com
Named Sun Gazette 2020 Best of the Best Plumbing Contractor
Best of Arlington Magazine 2023 and 2025 Top Vote Getter
B.L. James & Son Is a veteran-owned mechanical contractor providing plumbing, heating and cooling services to residents and business in Arlington, Virginia and the surrounding community.
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