Bonsall itself lists 4 contractors — too few to price locally on its own — but 105 operate within a real 45-mile radius, including those serving Fallbrook, Vista, Oceanside. 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

Bonsall FAQ

Hiring an HVAC contractor in Bonsall

Answers built from Bonsall's own listing data.

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

Ask for the license number and search it on the CSLB lookup (official site). 4 of the 4 listings here already match a license on the register; each of those profiles links straight to the lookup.

HVAC contractors near Bonsall

All California cities

Fallbrook19 contractors · 19 licensed · 6 mi Vista39 contractors · 39 licensed · 7 mi Oceanside43 contractors · 43 licensed · 7 mi San Marcos22 contractors · 22 licensed · 11 mi Carlsbad28 contractors · 28 licensed · 11 mi Valley Center21 contractors · 21 licensed · 12 mi Escondido98 contractors · 98 licensed · 14 mi Temecula56 contractors · 56 licensed · 16 mi Encinitas7 contractors · 7 licensed · 17 mi Murrieta81 contractors · 81 licensed · 19 mi