AC Diagnostics
Accurate troubleshooting for cooling issues. We identify the root cause of poor performance, from refrigerant leaks to electrical faults.
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Castro Valley's Repair Specialists
Fast, Reliable HVAC
Fast, Reliable HVAC
Repair in Castro Valley
Don't let a breakdown ruin your day. From Palomares Hills to the Boulevard, we provide rapid, expert heating and cooling repairs tailored to Castro Valley's unique climate and homes.
5-Star Rated
by Castro Valley Locals
15+
Years ServingThe East Bay
Who We Are
Call Our Team
Dedicated to Restoring Your Comfort
Castro Valley's rolling hills and valley pockets create diverse temperature zones. At HVAC Repair LLC, we understand the frustration of a system failure during a summer heatwave or a winter chill. Whether you're in a mid-century home near Lake Chabot or a newer build in Five Canyons, we have the expertise to fix it right.
Our team of licensed professionals treats every repair with urgency and care. We are fully insured and committed to delivering honest diagnostics and lasting repairs that get your system back up and running efficiently.
Certified Techs
Bonded & Insured for SafetyRapid Response
24/7 Emergency Repairs
Our Expertise
Comprehensive Repair Solutions
Whether you have a noisy air conditioner, a furnace blowing cold air, or a heat pump that won't cycle, our comprehensive repair services are designed to solve problems quickly for Castro Valley homeowners.
AC Repair
Fast fixes for broken air conditioners. We carry common parts to often complete repairs in a single visit, restoring your cool comfort.
Schedule RepairFurnace Repair
Don't shiver through the night. We repair ignition issues, blower motor failures, and thermostat problems to keep your home warm.
Learn MoreHeat Pump Repair
Expert service for heat pump malfunctions. Whether it's stuck in defrost or not heating efficiently, we have the skills to fix it.
Learn MoreCommercial Repair
Minimize downtime for your business. We provide rapid repair services for offices and retail spaces throughout Castro Valley.
Business InquiryComponent Replacement
Extend your system's life by replacing worn parts like capacitors, contactors, and fan motors before they cause total failure.
Call for ServiceDuct Repair
Fix leaks and improve airflow. We repair damaged ductwork to ensure your conditioned air reaches every room and isn't wasted.
Inspect DuctsSafety Inspections
Worried about strange smells or noises? We perform thorough safety checks to rule out gas leaks or electrical hazards.
Book InspectionEmergency Repair
System failure at the worst time? Our 24/7 emergency team is ready to serve Castro Valley residents whenever you need us.
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Why Castro Valley Chooses Us
The HVAC Repair LLC Standard
We've built our reputation in Castro Valley on speed, accuracy, and fair pricing. Local homeowners choose us for repairs because we fix it right the first time, avoiding repeat visits.
Skilled Technicians
Our team is trained to troubleshoot complex issues on all major brands and models.
Honest Pricing
No bait and switch. We provide a clear quote for the repair before we start work.
Fast Arrival
We respect your time. We offer convenient repair windows and prioritize emergency calls.
Local Reputation
We are proud to be a top-rated HVAC repair service in Alameda County, with numerous satisfied customers across Castro Valley.
Local Feedback
Loved by Castro Valley Locals
See why your neighbors in Castro Valley trust HVAC Repair LLC when their systems break down.
★★★★★
"Our AC stopped working on a hot Saturday afternoon. HVAC Repair LLC came out within a few hours and replaced a bad capacitor. Saved our weekend!"
★★★★★
"Great experience. The technician quickly diagnosed why our furnace wasn't lighting and had the part on his truck. Efficient and reasonably priced."
★★★★★
"We called them for an emergency repair at our office. They arrived promptly, fixed the issue without disrupting our work, and were very professional."
Local Coverage
Serving Castro Valley & The East Bay
Based locally, we provide rapid response times for HVAC repairs across the entire region.
Common Questions
Frequently Asked Questions
Everything Castro Valley residents need to know about HVAC repair.
How quickly can you fix my AC in Castro Valley?
We prioritize repair calls, especially during heatwaves. In most cases, we can offer same-day or next-day service to get your AC running again. We carry common parts to complete many repairs on the spot.
Is it worth repairing my old furnace?
If your furnace is under 15 years old and the repair cost is less than 50% of a new unit, repair is usually a good option. Our technicians will provide an honest assessment of the system's condition and help you weigh the pros and cons.
Why is my AC running but not cooling?
This could be due to a dirty air filter restricting airflow, low refrigerant levels indicating a leak, or a dirty condenser coil. We can perform a quick diagnostic to pinpoint the exact issue and fix it.
Do you offer emergency repair services?
Yes, we offer 24/7 emergency repair services for critical heating and cooling failures. If your system breaks down during extreme weather or a holiday, give us a call immediately.
Ready to Restore Your Comfort?
Don't wait for a small issue to become a major breakdown. Schedule your professional HVAC repair today with Castro Valley's most trusted experts at HVAC Repair LLC.