AirProHQ
Williamstown, NJ · Updated Oct 2026

44 HVAC contractors in Williamstown — every one with a license we could verify.

AirProHQ lists 44 heating and cooling companies in Williamstown, NJ, every one matched to a license on the NJ HVACR Board register. These listings come from the license register rather than review sites, so most carry no public rating — a verified license with no reviews is normal here, not a warning sign.

Williamstown at a glance
License boardNJ HVACR Board · number on every ad
Verify a license on the NJ HVACR Board lookup

How we check every listing: our full verification methodology.

44Contractors listed
44License-verified · 100%

44 license-verified shown first

Sorted: license status, then name

HVAC contractors in Williamstown, NJ

License verified

Brian Iacono

08094License 19HC00608000 · to 2028
Public reviewsNone on file
Profile
License verified

John Alessio

08094License 19HC00233700 · to 2028
Public reviewsNone on file
Profile
License verified

John L Acton

08094License 19HC00774000 · to 2028
Public reviewsNone on file
Profile
License verified

Matthew Sano

08094License 19HC00391300 · to 2028
Public reviewsNone on file
Profile
4 more in WilliamstownZIPLicenseContact
Shaun Whitehurst08094Verified19HC00560100—Profile
Thomas Paul08094Verified19HC00373900—Profile
Victor G Escobar Sr08094Verified19HC00307100—Profile
William F Upton08094Verified19HC00330700—Profile
Know the fair price

What HVAC work costs in Williamstown

National 2026 ranges from our cost guides. Ask any contractor for a written, itemized quote and compare it against them.

JobTypical cost
Diagnostic / service call$75 – $200
Capacitor replacement$100 – $250
Refrigerant recharge$200 – $600
Compressor replacement$1,300 – $2,800
Central air conditioner$3,900 – $7,900
Full HVAC (furnace + AC)$5,000 – $12,500
Sources: AC repair cost guide · HVAC replacement cost guide
Williamstown FAQ

Hiring an HVAC contractor in Williamstown

Answers built from Williamstown's own listing data.

01

How do I check a Williamstown HVAC contractor's license?

Ask for the license number and search it on the NJ HVACR Board lookup (official site). 44 of the 44 listings here already match an active license; each of those profiles links straight to the lookup.

02

Why do most Williamstown listings show no reviews?

Our Williamstown data comes from the NJ HVACR Board license register, not from review sites, so many licensed one-truck operations have no public review profile. A verified license with no reviews is not a red flag — ask for two recent local references instead.