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HVAC contractors in Fairfax County, Virginia

318 local businesses in Fairfax County. All 318 hold a current DPOR licence on the register read Oct 13, 2026.

Describe the job and the HVAC contractors who work in Fairfax County quote for it through Loclis. You choose who to hire.

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These businesses have not joined Loclis. Each page is built from public business information, including the state licence record where there is one. They have not been reviewed here and cannot be booked through Loclis.

1–60 of 318

HVAC contractors nearby

Prince William County 243Loudoun County 116Manassas 40Manassas Park 27Arlington County 23Alexandria 18Fairfax 15Herndon 12

Hiring HVAC contractors in Fairfax County

In Virginia, a contractor needs a DPOR licence for any job worth more than $1,000, and the licence class caps the size of a single job: Class C under $30,000, Class B under $150,000, Class A above that. HVAC contractors must also have a master tradesman licence behind the contractor licence. (Va. Code § 54.1-1100) Check the status, class and specialty of any business on DPOR’s License Lookup, or read how to check a contractor’s licence.

Virginia requires a licensed contractor to give you a written contract for residential work before work starts. Permits come from the local building department, and DHCD’s directory of local building officials says who to ask.

On Loclis you describe the job once, licensed businesses send a price or offer to see it first, and nothing is charged until you book. How it works.

Questions about HVAC contractors in Fairfax County

How many HVAC contractors are there in Fairfax County, VA?
Loclis lists 318 businesses of this kind in Fairfax County, from Virginia DPOR's licence register and other public business information. All 318 hold a current DPOR licence on the register read Oct 13, 2026.
Do HVAC contractors in Fairfax County need a licence?
In Virginia, a contractor needs a DPOR licence for any job worth more than $1,000, and the licence class caps the size of a single job: Class C under $30,000, Class B under $150,000, Class A above that. HVAC contractors must also have a master tradesman licence behind the contractor licence. You can check any business on DPOR's free License Lookup before you hire it.
What should a contract with a contractor in Fairfax County include?
Virginia requires a licensed contractor to give you a written contract for residential work, signed before work starts, with the start and completion dates, the price, the payment schedule and the contractor's licence number, class and specialty. Virginia's Board for Contractors suggests a deposit of no more than 10% of the price or $1,000, whichever is less.
Who issues building permits in Fairfax County?
The local building department. Virginia's Department of Housing and Community Development keeps a directory of local building officials, and a licensed contractor should apply for the permits a job needs.

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