Complete Building Services (CBS) is a company that is passionate about the operation and maintenance of buildings/facilities in the commercial and government sectors. CBS is the largest division of The Donohoe Companies, Inc. - Washington DC's most established real estate company. At CBS, we celebrate and empower our talented employees - and it shows as we have been ranked by the Washington Business Journal as the "Best Place to Work" multiple times.

Perks & Benefits 

We offer a full slate of benefits, including competitive salaries, medical, dental, vision, life and disability coverages, FSA, flexible vacation, commuter benefits, and a 401k plan with a match. And...we offer some not-so-standard, extra great benefits, including tuition reimbursement for education/certifications, employee discount programs (including hotels and our vendor's products), and an Employee Assistance Program that offers free financial consultants, therapists, and lawyers. We value diversity and believe in forming teams in which everyone can be their authentic self is the key to our success. Come join us, and find out what the best work of your career could look like for you.

The HVAC Mechanic is responsible for the installation, maintenance, troubleshooting, and repair of commercial HVAC systems and related mechanical equipment, including boilers and chillers, across the property portfolio. This role ensures building systems operate safely, reliably, and efficiently, and works closely with the engineering team, property management, and tenants to resolve issues quickly and professionally. A Washington, DC 3rd Class Engineer's License is required.

• Install, maintain, troubleshoot, and repair commercial HVAC systems, including air handling units, RTUs, VAV boxes, pumps, and related controls.
• Perform preventive maintenance, diagnostics, and repair on boilers and chillers, including combustion systems, burners, refrigeration cycles, and associated safety controls.
• Respond promptly to service requests and building system alarms, diagnosing mechanical issues and completing repairs to minimize downtime and tenant disruption.
• Read and interpret mechanical drawings, wiring diagrams, and equipment manuals to support repairs, upgrades, and system troubleshooting.
• Monitor building automation systems (BAS) and adjust HVAC equipment settings to maintain occupant comfort and energy efficiency.
• Perform routine inspections and preventive maintenance on mechanical equipment, including belts, bearings, filters, coils, and controls, in accordance with maintenance schedules.
• Maintain accurate records of maintenance activity, repairs, parts usage, and equipment readings for compliance and reporting purposes.
• Communicate clearly and professionally with property management, engineering staff, tenants, and outside contractors regarding building system status and repair needs.
• Follow all applicable safety procedures, including lockout/tagout, confined space entry, and proper handling of refrigerants and boiler chemicals.
• Participate in an on-call rotation and respond to after-hours emergencies as needed.
• Perform other related duties as assigned.

Hours: Monday - Friday (40 hours per week)

Salary: $42.00 per hour with possibility of overtime as needed

• Washington, DC 3rd Class Engineer's License required.
• Minimum of [3-5] years of hands-on commercial HVAC repair experience, with strong working knowledge of boilers and chillers.
• Demonstrated ability to diagnose and repair mechanical, electrical, and control issues on commercial HVAC equipment.
• Strong communication skills, both written and verbal, with the ability to interact professionally with tenants, management, and coworkers.
• Ability to read blueprints, schematics, and equipment manuals.
• Working knowledge of building automation systems (BAS) preferred.
• EPA Universal Refrigerant Certification preferred.
• Ability to work independently, prioritize tasks, and respond effectively to emergencies.
• Valid driver's license.
• Ability to walk, stand, climb ladders, and access mechanical rooms, rooftops, and confined spaces for extended periods.
• Ability to lift and carry up to [50] pounds and to work in tight or elevated spaces.
• Exposure to mechanical, electrical, and chemical hazards typical of commercial HVAC operations; use of personal protective equipment (PPE) required.
• Work may be performed indoors and outdoors, in varying temperature conditions, and may require evening, weekend, or on-call availability for emergency response.                                                                                                                                                                                                                                           EOE/Disability/Veterans