Central HVAC Services for Apartments & Condos – DC, VA, MD
Call Now: 703-869-2922
With years of specialized experience in multi-family climate systems, The Flexline proudly provides expert Central HVAC Services for apartments and condominiums across Washington, DC, Maryland, and Northern Virginia. Our team understands the unique demands of centralized heating and cooling systems in multi-unit buildings, where performance, reliability, and efficiency are critical for both residents and property managers. From system design and installation to seasonal maintenance and responsive repairs, we deliver tailored HVAC solutions that meet the needs of residential complexes throughout the region. As a trusted partner for property developers, condo boards, and building owners, The Flexline is committed to delivering consistent comfort and long-term value in every service we provide.
Central Air Conditioning Systems for Multi-Unit Properties
Looking for reliable central HVAC service for your building? At The Flexline, we specialize in maintaining, repairing, and replacing central air conditioning systems used in condos, co-ops, and apartment buildings across Washington DC, Northern Virginia, and Maryland.
We handle:
maintenance
replacements
replacement
rebalancing
retrofits
Whether you’re dealing with tenant complaints, leaking units, or outdated equipment, we provide fast, professional service with minimal disruption.
What Is a Central HVAC System?
Most large buildings in the DMV use central chilled water HVAC systems that serve dozens or even hundreds of apartments through a shared chiller loop. Each apartment may have an AC convector (fan coil unit) connected to that central system.
These setups are efficient — but only if they’re properly maintained. Over time, key components like valves, fan motors, and pipe insulation break down and require expert service.
What Is a Central HVAC System?
Most large buildings in the DMV use central chilled water HVAC systems that serve dozens or even hundreds of apartments through a shared chiller loop. Each apartment may have an AC convector (fan coil unit) connected to that central system.
These setups are efficient — but only if they’re properly maintained. Over time, key components like valves, fan motors, and pipe insulation break down and require expert service.
Services We Provide
Chiller & Cooling Tower Service
- Seasonal startup and shutdown
- Coil cleaning and refrigerant checks
- Cooling tower fan, motor, and belt service
- Pump inspections and water flow diagnostics
- Descaling, cleaning, and water treatment support
AC Convector Unit Repair & Replacement
- Fan motor failure and noisy units
- Coil leaks, clogged drain pans, or mold
- Filter cleaning and airflow improvement
- Full unit replacement with newer, quieter models
Chilled Water Valve Repair
- Isolation valves that no longer shut off
- Rusted or stuck chilled water supply and return lines
- Emergency valve replacement for active leaks
- Pressure balancing and zoning solutions
Pipe Insulation & System Upgrades
- Re-insulation of chilled water lines and risers
- Mold and moisture control in old crawlspaces
- ASHRAE- and IECC-compliant materials
- Energy efficiency consulting for older systems
Warning Signs of Failing Central HVAC Systems
- Tenants report leaks or water damage near AC units
- Convectors make loud noises or blow warm air
- Cooling towers overflow, or chiller performance drops
- Stuck valves prevent unit isolation during service
- Pipe insulation is falling off or soaked through
- Inconsistent temperatures across units or floors
Central HVAC Service Areas – “Near Me”
Local DMV Area Service Coverage
Northern Virginia:
- Arlington
- Alexandria
- Annandale
- Ashburn
- Chantilly
- Centreville
- Dale City
- Dumfries
- Fairfax
- Falls Church
- Fredericksburg
- Gainesville
- Herndon
- Lorton
- Leesburg
- McLean
- Manassas
- Safford
- Springfield
- Sterling
- Vienna
- Woodbridge
Washington DC:
- Adams Morgan
- All Residential Wards (NW, NE, SW, SE)
- Capitol Hill
- Columbia Heights
- Dupont Circle
- Foggy Bottom
- H Street NE
- Logan Circle
- Navy Yard
- Petworth
- Shaw
Maryland:
- Bethesda
- College Park
- District Heights
- Greenbelt
- Hyattsville
- Kensington
- Laurel
- Langley park
- Oxon Hill
- Rockville
- Silver Spring
- Takoma Park
- Upper Marlboro
- Wheaton
Why Property Managers Trust The Flexline
- 20+ years of HVAC experience with hydronic systems
- Licensed in DC, VA & MD
- Clean, fast, and tenant-friendly service
- 24/7 response for emergency valve or system failures
- Budget-friendly quotes for phased upgrades or full retrofits
Services
Request a Central HVAC Service Visit
Need a full system inspection, valve replacement, or new convector install? The Flexline is your partner in long-term comfort, reliability, and compliance.
Request a Site Visit Online
Serving condos, apartments, and co-ops across the entire DMV region