5 Commercial HVAC Contractors in Chantilly, VA
Top-Rated Commercial HVAC Contractors in Chantilly
Mannix Heating & Cooling
“Silvio Guerrero and Keith Hellin appear in multiple five-star reviews for same-day response and honest diagnostics. Four of six sampled reviews explicitly…”
Ace Air Conditioning & Heating Service, Inc.
“526 reviews form a uniformly positive dataset, with every reviewer awarding 5 stars except one 1-star complaint. Six different customers explicitly credit…”
All Commercial HVAC Contractors (5 total)
Total Mechanical Services LLC
“Five of seven client reviews award five-star ratings, with two customers specifically praising fair pricing…”
Commercial HVAC Costs in Chantilly
Commercial system pricing in Chantilly. Actual costs vary significantly by building size and system type. Request a site-specific quote.
| Service | Low | Average | High |
|---|---|---|---|
Annual maintenance (per rooftop unit) Quarterly inspections | $500 | $1,000 | $2,000 |
Annual contract (small business, < 5K sqft) | $1,000 | $2,500 | $5,000 |
Annual contract (mid-size, 5K-25K sqft) | $3,500 | $6,500 | $10,000 |
Basic rooftop unit replacement | $6,500 | $10,000 | $15,000 |
Small business full system (< 5K sqft) | $8,000 | $16,000 | $25,000 |
Mid-size building (5K-25K sqft) | $25,000 | $50,000 | $80,000 |
Operating cost (per sqft annually) Utility + maintenance | $2 | $4 | $6 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
Commercial HVAC in Chantilly, VA: What to Expect
The Potomac Valley brings distinct seasonal challenges for businesses in the Chantilly area. Summers push daytime highs into the upper 80s with sticky humidity, while winters plunge to averages around 28 F, placing heavy demand on both cooling and heating systems throughout the year. Five contractors serve this market with an impressive collective average rating of 4.7 across more than 1,500 verified reviews, and two offer round-the-clock emergency service. Commercial HVAC in Chantilly is not a seasonal consideration but a year-round operational requirement for most facilities.
Annual maintenance contracts for rooftop units run $500 to $2,000 annually. Small business locations under 5,000 square feet typically budget $1,000 to $5,000 per year for comprehensive service agreements, while mid-size facilities between 5,000 and 25,000 square feet see annual costs ranging from $3,500 to $10,000 depending on system complexity. Virginia law requires all commercial HVAC contractors to hold a valid Class A, B, or C contractor license with an HVA specialty classification from the state Department of Professional and Occupational Regulation before performing work on commercial properties.
Customer feedback points to clear differences in service approach. Silvio Guerrero and Keith Hellin at Mannix Heating & Cooling earn repeated mentions for same-day response times and their willingness to advise against unnecessary repairs. Quentin at Ace Air Conditioning & Heating Service, Inc. receives consistent praise across reviews for thoroughness during diagnostics and installations. Frank at Pro Sky AC&Heating is noted specifically for professional guidance on equipment sizing and quality installation work. These patterns suggest potential clients should prioritize clear communication and upfront diagnostics when evaluating commercial service providers.