License verified
Ferndale, WA · Updated Oct 2026
6 HVAC contractors in Ferndale — every one with a license we could verify.
AirProHQ lists 6 heating and cooling companies in Ferndale, WA, every one matched to a license on the Washington L&I register.
How we check every listing: our full verification methodology.
6Contractors listed
6License-verified · 100%
6 license-verified shown first · distances from the center of the listed offices
Sorted: license status, then nameHVAC contractors in Ferndale, WA
License verified
Dejong Heating & Rfrg Inc
License verified
Dj'S Mechanical LLC
License verified
Lagerwey Mechanical LLC
License verified
Northstar Hvac, LLC
License verified
Smith Mechanical Inc
Where they're based
Where Ferndale's contractors are based
Counted from the office address on each record. A contractor based near you usually means a shorter response window on a hot afternoon.
Know the fair price
What HVAC work costs in Ferndale
Ferndale itself lists 6 contractors — too few to price locally on its own — but 32 operate within a real 45-mile radius, including those serving Bellingham, Blaine, Mount Vernon. The ranges below are the same national 2026 figures used sitewide; 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
Ferndale FAQ
Hiring an HVAC contractor in Ferndale
Answers built from Ferndale's own listing data.
01
How do I check a Ferndale HVAC contractor's license?
Ask for the license number and search it on the Washington L&I lookup (official site). 6 of the 6 listings here already match an active license; each of those profiles links straight to the lookup.