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 licensed Journeymen and Master Mechanics specialize in addressing complex mechanical challenges across commercial, industrial, and mission-critical environments in the Washington, D.C. metropolitan area. With a focus on safety, sustainability, and community engagement, we maintain rigorous certifications, including Avetta, IsNET, and ConstructSecure qualifications, while offering 24/7 emergency services to minimize downtime for clients. Our teams expertise spans HVAC system maintenance, hydro-jetting, backflow prevention, and VRF/VRV installations, supported by strategic partnerships with leading manufacturers like Carrier and Daikin. Recognized as a Certified Business Enterprise in D.C., we prioritize transparent communication, tailored maintenance agreements, and energy-efficient solutions to extend equipment lifespans and reduce operational costs.Rooted in a culture of integrity and continuous improvement, we invest in employee development through vendor training and safety programs, ensuring our workforce remains at the forefront of industry advancements. Our legacy of reliability, underscored by a 26-year average tenure for management staff, reflects our dedication to exceeding client expectations while fostering growth opportunities for partners and contributing to local communities.
Services
Plumbing Service
HVAC Maintenance
Hydro-Jetting
Backflow Prevention
VRF/VRV Systems
Emergency Repairs
Energy Services
Maintenance Agreements
Mission Critical Construction
Design-Build Solutions
Highlights and features
- We offer 125 years of specialized expertise in HVAC and plumbing systems.
- Our 24/7 emergency service minimizes downtime for critical operations.
- Certified technicians trained by leading manufacturers ensure precision workmanship.
- Customized maintenance agreements reduce long-term operational costs.
- Award-winning safety program with weekly job site evaluations and PPE provision.
Associations and certifications
- Avetta
- IsNET
- ConstructSecure
- MSCA Green Star Contractor
- Certified Business Enterprise (DC)
Services
HVAC Service
Our HVAC service covers preventive maintenance, emergency repairs, and system upgrades for commercial and industrial clients. With factory-trained technicians and partnerships with brands like Carrier and Trane, we ensure optimal performance of heating, cooling, and ventilation systems. Our proactive maintenance agreements reduce energy costs and extend equipment lifespans while 24/7 emergency support minimizes operational disruptions.
Plumbing Service
We address commercial plumbing challenges from routine maintenance to emergency repairs using advanced tools like hydro-jetting and video inspection. Our licensed plumbers handle backflow prevention, drain cleaning, and system retrofits across DC, Maryland, and Virginia. Tailored maintenance plans and 24-hour emergency response ensure uninterrupted operations for clients in diverse industries.
Hydro-Jetting
Hydro-jetting services remove stubborn blockages and buildup in sewer lines using high-pressure water streams. This method cleans pipe walls thoroughly, preventing future clogs and extending system longevity. Our portable and tow-behind equipment handles residential to industrial-scale projects, complemented by video inspection for precise diagnostics and maintenance scheduling.
Backflow Prevention
We install, test, and certify backflow prevention devices to protect potable water systems from contamination. Annual certifications and five-year rebuilds ensure compliance with local regulations. Our licensed technicians provide documentation and reminders to help clients maintain safety standards and mitigate liability risks associated with cross-connections.
VRF/VRV Systems
Specialized VRF/VRV services include installation, maintenance, and optimization of energy-efficient climate control systems. Partnering with Daikin and Mitsubishi, our factory-certified team designs solutions that simultaneously heat and cool different zones, reducing energy consumption. We offer 24/7 support and planned maintenance to ensure peak efficiency for commercial facilities.
Questions
What HVAC services does W. L. Gary Company offer?
We provide maintenance, repair, and installation for all commercial HVAC systems, including VRF/VRV, chillers, boilers, and mission-critical climate control solutions.
Do you provide emergency plumbing services?
Yes, our 24/7 emergency team responds to urgent plumbing issues like pipe bursts, drain blockages, and system failures across DC, MD, and VA.
Are your technicians certified?
Our Journeymen and Master Mechanics hold certifications in HVAC and plumbing specialties, with factory training from manufacturers like Daikin and Mitsubishi.
What areas do you service?
We serve Washington, D.C., Northern Virginia, and Maryland, including specialized support for mission-critical facilities and commercial properties.
How can I schedule service?
Call 202-723-0676 anytime for emergency assistance or use our online request form for routine maintenance and consultations.
