We build innovative solutions for today’s government, commercial, and industrial infrastructures.
Our
Expertise
- General Contracting
- HVAC Design and Installation
- Ductwork Design and Installation
- Commercial Chiller Systems
- Commercial Boilers
- Air Handler Systems
- Domestic Hot Water Systems
- Pump Repair and Installation
- VRF System Design and Installation
- Ventilation Systems
- Hydronic and Steam Boilers
- Exhaust Systems
- Humidification Systems
- Ultra Violet Lighting
- Energy Savings Analysis
- Preventive Maintenance
- Equipment Inventory and Evaluation
- Facilities Management
- Design Build Office Space
- Electrical Services and Installation
- Solid Waste Collection
- Janitorial Services
In The Media
Jill’s White House makeover:
The next First Lady gets to work on renovations
TATLER – Holmes Mechanical Contractors hired for renovations of the First Lady’s ‘EW refresh’ … read more
About Us
Holmes Mechanical Contractors (HMC)
HMC is an independent, family-owned and operated small business with more than 40 years of experience. Our professional team of project managers, certified technicians and facility operators receive leading-edge training in energy technology, allowing HMC to expertly fuse facility operations and maintenance services to its core capabilities. We align ourselves with industry trends and maintain up-to-date licenses and certifications to ensure effective results. HMC proudly serves the Washington, DC-Maryland-Virginia metropolitan area as a world-class competitor for prime and subcontract market opportunities. HMC is an 8(a) Diversity Supplier and Veteran-Owned Business collaborating with Federal, State, and local jurisdictions as a regional MBE/DBE/SBE firm.
Ronald E. Holmes, Sr., Founder and CEO, has been a leader in HVAC and general contracting throughout his career. First working under the tutelage of his father, Ron then went on to serve in the U.S. Navy aboard the U.S.S. Oriskansy. He continued his service in the Federal sector as a manager, after which he made a full-time commitment to HMC.
Past
Performance
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The White House
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U.S. General Services Administration
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U.S. Food and Drug Administration
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Spirit of Faith Christian Center
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U.S. Department of State
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Homewood Suites
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U.S. Department of Labor
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U.S. Customs and Border Protection
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Prince George’s County
Public Schools -
U.S. Department of Health and
Human Services -
U.S. Department of Housing and
Urban Development
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U.S. Department of Homeland Security
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U.S. Department of Agriculture
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Maryland Department of General Services
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Maryland State Highway Administration
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Sentara Northern Virginia Medical Center
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MD Department of Natural Resources
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Maryland 5th Regiment Armory
Celebrating Over Forty
Years of Mastery.
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Celebrating over Forty years of mastery.
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The White House
-
U.S. General Services Administration
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U.S. Food and Drug Administration
-
Spirit of Faith Christian Center
-
U.S. Department of State
-
Homewood Suites
-
U.S. Department of Labor
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U.S. Secret Service
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U.S. Customs and Border Protection
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Prince George’s County Public Schools
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U.S. Department of Health and Human Services
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U.S. Department of Housing and Urban Development
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U.S. Department of Homeland Security
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U.S. Department of Agriculture
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Maryland Department of General Services
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Maryland State Highway Administration
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Sentara Northern Virginia Medical Center
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MD Department of Natural Resources
-
Maryland 5th Regiment Armory
Celebrating over Forty
years of mastery.
Company
Information
GSA Schedule Contract
GS-21-F-013GA
Cage Code
62WY6
DUNS
963264424
NAIC CODES
238160 238320 541320 561730
238210 238330 541350 561990
238220 238350 561210 562111
238290 238390 561499 562119
238310 531311 561720 562910
Licenses and Certifications
- Federal SBA 8(a) Certification
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Maryland General Contractors License #W14346779
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Maryland MDOT MBE/DBE/SBE Certification
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Prince George’s County CBSE/MBE/DBE Certification
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HVAC-R Master’s License in Maryland, the District of Columbia and Virginia
- Steam Engineer License in Maryland, the District of Columbia and Virginia
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WSSC Registered Supplier #15-390, Masters in Maryland, the District of Columbia, and Virginia
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Facilities Management Certification
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OSHA (Construction Industry) Certification
What Our Clients Say
Holmes Mechanical Contractors has a group of highly trained technicians that always go above and beyond to meet our Agency’s needs. They have performed a variety of services for HUD, including mechanical, electrical, and plumbing work. Each time the work has been exceptional!
Sentara Hospital is extremely pleased with the services provided by Holmes Mechanical Contractors. We’ve used them for several major projects and have never been disappointed. Their response time is expedient, and their work is proficient. These qualities are essential when working in a hospital setting.
Holmes Mechanical Contractors performed outstanding work on a major renovation project for the Gilbane Construction Company. They stayed within schedule and did “high quality” mechanical work. Their crew was professional and provided outstanding customer service to our clients.
C o n t a c t Us
Call Us
(301) 808-0707
Office Location
8900 Edgeworth Drive, Unit D,
Capitol Heights, MD 20743
Open Hours
M-F: 8am - 5pm, S-S, 9am - 1pm
Ask a Question or Request a Quote
Current Employment Opportunities
Site Superintendent
Project Manager
Estimator
HVAC Technician –
Journeyman License / Certification
