7 AC Installation Contractors in Herndon, VA
Top-Rated AC Installation Contractors in Herndon
Cardinal Plumbing Heating & Air Inc
“Four reviewers describe emergency situations resolved quickly, including heating failures during extreme cold snaps, while five-star ratings consistently…”
Marco & Son llc
“With 539 reviews averaging 4.9 stars, reviewers consistently mention rapid response during system failures, with multiple customers noting same-day arrival…”
All AC Installation Contractors (7 total)
Fairfax Cooling & Heating Company
“Four of five detailed reviewers specifically mention receiving same-day or same-hour service visits, with…”
Aviles heating & air conditioning
“Multiple reviewers describe emergency same-day service with same-hour arrival, and five-star reviews…”
Air-Tech Systems Inc
“Mixed sentiment reflects divided opinions: one five-star review praises responsiveness and new Carrier…”
AC Installation Costs in Herndon
New central AC installation costs in Herndon, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $150 | $350 | $700 |
Ductless mini-split (single zone) | $2,000 | $4,500 | $8,000 |
Central AC replacement (existing ducts) | $3,500 | $6,500 | $12,000 |
Central AC new install (with ductwork) | $7,000 | $12,000 | $20,000 |
Carrier (residential) | $3,800 | $6,200 | $10,500 |
Trane (residential) | $5,000 | $8,800 | $13,600 |
Lennox (residential) | $3,500 | $6,500 | $12,000 |
Rheem (residential) | $3,200 | $5,500 | $9,000 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Installation in Herndon, VA: What to Expect
Living near the Potomac means coping with summers that push into the upper eighties with thick humidity, followed by winters where temperatures regularly dip to around twenty-eight degrees. This creates genuine year-round demand for climate control, driving homeowners to seek professional AC Installation in Herndon to handle both cooling and heating efficiently across distinct seasonal extremes. Seven licensed contractors serve this northern Virginia market, and their combined eighteen hundred plus reviews average a solid four point three stars, indicating reliable service exists close by.
Installation costs in this market reflect equipment type and labor scope. A window unit runs roughly one hundred fifty to seven hundred dollars, while a ductless mini-split single zone typically costs between two thousand and eight thousand dollars. Replacing central air conditioning with existing ductwork ranges from three thousand five hundred to twelve thousand dollars. Virginia requires contractors to hold either a Class A, B, or C license with an HVA specialty from the state Department of Professional and Occupational Regulation, which validates their competency for this type of work.
Reviewers across top-rated companies consistently highlight fast response during system failures, with several mentioning same-day arrival during heat waves or cold snaps. Customers frequently credit technicians with thorough explanations of equipment options and clear communication throughout the process. The pattern across feedback suggests successful contractors combine technical knowledge with transparency about sizing and pricing, helping homeowners make informed decisions rather than pushing unnecessary upgrades.