Business Details
Emergency
services
Trusted HVAC & Plumbing Solutions Since 1895
W. L. Gary has been delivering expert mechanical 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 HVAC and plumbing services, ensuring reliable and efficient systems for commercial and industrial clients across the Washington, D.C. metropolitan area. We prioritize safety, sustainability, and energy efficiency, offering tailored maintenance agreements and cutting-edge technologies like VRF/VRV systems. Rooted in core values of integrity and community support, we strive to exceed expectations through proactive service and technical excellence. 
Services
Plumbing Service
HVAC Service
Backflow Prevention
Hydro-Jetting
VRF/VRV Service
Highlights and features
- We offer 24/7 emergency service for critical HVAC and plumbing needs.
- Our team includes certified Journeymen and Master Mechanics with decades of experience.
- We specialize in energy-efficient solutions, including VRF/VRV systems and retrofits.
- Our safety program includes weekly training and job site evaluations for all employees.
- We provide customized maintenance agreements to extend equipment life and reduce costs.
Associations and certifications
- MSCA Green Star Contractor
Services
HVAC Service
Our HVAC service ensures optimal performance of commercial heating, ventilation, and air conditioning systems through maintenance, repairs, and installations. We specialize in energy-efficient solutions, including VRF/VRV systems, to enhance tenant comfort and reduce operational costs. With 24/7 emergency support, our certified technicians address urgent issues promptly, minimizing downtime for critical facilities.
Plumbing Service
We provide comprehensive plumbing solutions for commercial properties, including drain cleaning, backflow prevention, and emergency repairs. Our advanced tools, such as hydro-jetting and video inspection, resolve complex issues efficiently. With 24-hour availability, we ensure uninterrupted operations for clients in the D.C. metro area, prioritizing long-term system reliability.
Hydro-Jetting
Hydro-jetting removes blockages and buildup in sewer lines using high-pressure water, restoring optimal flow without damaging pipes. This method is faster and more effective than traditional cable machines, ideal for commercial properties with challenging pipe layouts. We offer scheduled maintenance programs to prevent future issues and extend system lifespan.
Backflow Prevention
Our certified technicians install, test, and maintain backflow prevention devices to protect potable water systems from contamination. Annual certifications and five-year rebuilds ensure compliance with safety standards. We provide reminders and maintenance contracts to help clients avoid liability and maintain regulatory compliance for commercial properties.
VRF/VRV Service
We design, install, and service VRF/VRV systems that deliver precise climate control with significant energy savings. These systems allow individual zone management and heat recovery, reducing operational costs for commercial buildings. Factory-trained technicians ensure proper setup and ongoing performance, partnering with leading manufacturers like Daikin and Mitsubishi for cutting-edge solutions.
Questions
What HVAC services do you offer?
We provide maintenance, repair, installation, and 24/7 emergency services for HVAC systems, including VRF/VRV, chillers, boilers, and air purification systems.
Do you offer 24/7 emergency plumbing services?
Yes, we provide 24-hour emergency plumbing support for urgent issues like leaks, blockages, and system failures in commercial properties.
What areas do you serve?
We serve Washington, D.C., Maryland, and Northern Virginia, with a fabrication shop and team ready to support regional clients.
Are your technicians certified?
Yes, our Journeymen, Master Mechanics, and safety-certified team members receive ongoing training and manufacturer certifications for specialized systems.
How can I schedule service?
Call us at 202-723-0676 or request service online for prompt assistance with HVAC, plumbing, or emergency needs.
