MECHANICAL DESIGN SYSTEMS INC · Arlington County, VA · Proven Pros
Arlington County, VA
Median project value
$26,900
Most recent job
2026-03-09
Recent permitted projects
(1) VAV Box, (1) Diffuser, (2) Grilles, & Ductwork; NA; Mechanical Arlington County · 2025 $5,600 (3) WSHP's, (1) Exhaust Fan, Piping, & Ductwork; NA; Mechanical Arlington County · 2025 $85,900 (2) Cooling only VAV Boxes, (6) Diffusers, & Ductwork; NA; Mechanical Arlington County · 2024 $84,500 Install (14) Diffusers/Grilles Ductwork; NA; Mechanical Arlington County · 2024 $31,700 Installation of energy recovery unit. Minimum duct per drawing.; NA; Mechanical Arlington County · 2023 $24,970 Install new Diffusers/grilles, dampers and ductwork.; NA; Mechanical Arlington County · 2023 $47,700 (1) Fan, (1) Diffuser, (2) Grilles and ductwork.; NA; Mechanical Arlington County · 2023 $8,790 Permit activity in Arlington County
Area served
Arlington County
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Claim this profile Track record sourced from public building-permit records. Figures reflect permitted projects, not self-reported work. Listed on Proven Pros.
Relocate (9) Water Source Heat pumps; NA; Mechanical Arlington County · 2023
$27,950
(1) Exhaust Fan, (12) Return Grilles, (30) Slot Diffusers, (102ft. Flowbar Diffusers, Ductwork; NA; Mechanical Arlington County · 2023 $95,000
Install (4) New Diffusers/Grilles, New Flex Duct and (2) New Thermostats; NA; Mechanical Arlington County · 2023 $5,000
Diffusers & Ductwork; NA; Mechanical Arlington County · 2022 $14,100
NA; Mechanical Arlington County · 2022 $79,900 Permitted projects on public record. Addresses are omitted for privacy.