Business Details
Emergency
services
Trusted HVAC and Plumbing Solutions Since 1895
W. L. Gary has been delivering expert HVAC and plumbing solutions since 1895, combining over 125 years of industry experience with a commitment to innovation and client satisfaction. Our team of certified professionals specializes in addressing the unique mechanical challenges of commercial and industrial facilities across the DC metropolitan area, ensuring systems operate efficiently and reliably. We prioritize safety, transparency, and community support, maintaining a culture where employees and partners thrive. Our 24/7 emergency services ensure uninterrupted operations for critical environments like healthcare facilities and office buildings. With advanced tools like hydro-jetting and video inspection, we provide proactive maintenance and rapid response solutions tailored to client budgets.Recognized as a Certified Business Enterprise in DC, we hold licenses in DC, Maryland, and Virginia, adhering to rigorous safety and quality standards. Our affiliations with industry leaders like Avetta and ConstructSecure underscore our dedication to excellence. By investing in ongoing training and factory-certified technicians, we stay at the forefront of HVAC technologies, including energy-efficient VRF/VRV systems. Our mission-driven approach focuses on doing the right thing, fostering growth for partners, and supporting local communities. This legacy of trust and expertise has made us a preferred provider for mechanical solutions in the region.
Services
Plumbing Service
HVAC Service
Hydro-Jetting
Backflow Prevention
VRF/VRV Service
Mission Critical Construction
Maintenance Agreements
Energy Services
Design Assist
Plan and Spec Coordination
Highlights and features
- We offer 125+ years of experience in HVAC and plumbing services.
- Our team provides 24/7 emergency response for critical systems.
- Certified technicians specialize in VRF/VRV and energy-efficient technologies.
- We maintain a safety-first culture with weekly job site evaluations.
- Licensed in DC, Maryland, and Virginia for regional expertise.
Associations and certifications
- MSCA Green Star Contractor
- Avetta
- IsNET
- ConstructSecure
Services
Plumbing Service
Our plumbing service addresses urgent and routine mechanical needs, from drain cleaning to system retrofits. Using hydro-jetting and video inspection tools, we resolve blockages and maintain pipeline integrity. With 24/7 emergency availability, we minimize downtime for commercial clients in the DC metro area.
HVAC Service
We provide comprehensive HVAC maintenance, repair, and installation for commercial systems, including chillers, boilers, and air handlers. Our technicians are factory-certified for brands like Carrier and Daikin, ensuring efficient operation and energy savings for mission-critical environments.
Hydro-Jetting
Hydro-jetting removes debris and scale buildup in pipelines using high-pressure water streams. This method cleans all pipe surfaces effectively, preventing backups and extending system lifespan. We offer customized maintenance programs to sustain optimal flow capacity.
Backflow Prevention
Our certified technicians install, test, and maintain backflow preventers to protect potable water systems from contamination. Annual certifications and five-year rebuilds ensure compliance with safety standards, reducing liability for building owners.
VRF/VRV Service
We specialize in VRF/VRV systems for energy-efficient heating and cooling. These systems use shared refrigerant to provide zoned climate control, reducing energy consumption. Our factory-trained team ensures proper installation and maintenance for peak performance.
Questions
What HVAC services do you offer?
We provide maintenance, repair, and installation for commercial HVAC systems, including VRF/VRV, chillers, boilers, and air handlers, with 24/7 emergency support.
Do you provide emergency plumbing services?
Yes, our 24/7 emergency service addresses urgent plumbing issues like blockages, leaks, and system failures to minimize downtime.
Which areas do you serve?
We serve Washington, D.C., Maryland, and Northern Virginia, with a focus on commercial and industrial clients.
Are your technicians certified?
Yes, our team includes licensed journeymen, master mechanics, and factory-certified specialists for HVAC and plumbing systems.
What is hydro-jetting?
Hydro-jetting uses high-pressure water to clean pipelines, removing debris, grease, and roots for improved flow and longevity.
Do you offer maintenance agreements?
Yes, we provide customized maintenance plans to extend equipment life, improve efficiency, and reduce emergency repair costs.
