AirProHQ
San Lorenzo, CA · Updated Nov 2026

4 HVAC contractors in San Lorenzo: every one with a license we could verify.

AirProHQ lists 4 heating and cooling companies in San Lorenzo, CA, every one matched to a license on the CSLB register.

San Lorenzo at a glance
License boardCSLB · number on every ad
Licenses renewing within 90 days1
Verify a license on the CSLB lookup

How we check every listing: our full verification methodology.

4Contractors listed
4License-verified · 100%

4 license-verified shown first

Sorted: license status, then name

HVAC contractors in San Lorenzo, CA

Know the fair price

What HVAC work costs in San Lorenzo

San Lorenzo itself lists 4 contractors — too few to price locally on its own — but 110 operate within a real 45-mile radius, including those serving San Leandro, Hayward, Castro Valley. 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
San Lorenzo FAQ

Hiring an HVAC contractor in San Lorenzo

Answers built from San Lorenzo's own listing data.

01

How do I check a San Lorenzo 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 San Lorenzo

All California cities
San Leandro39 contractors · 39 licensed · 2 miHayward53 contractors · 53 licensed · 3 miCastro Valley14 contractors · 14 licensed · 3 miUnion City15 contractors · 15 licensed · 8 miOakland55 contractors · 55 licensed · 8 miAlameda7 contractors · 7 licensed · 10 miDublin7 contractors · 7 licensed · 10 miNewark11 contractors · 11 licensed · 11 miSan Ramon19 contractors · 19 licensed · 11 miDanville18 contractors · 18 licensed · 12 mi