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Serving Santa Clara & San Mateo Counties

Heat Pump Repair in San Jose, CA

Same-day heat pump repair for Bay Area homes and businesses. Free diagnostics – no charge to assess the problem. If we can’t fix it on the first visit, you don’t pay a trip fee.

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HomeseparatorHeat Pump Repair
Heat Pump Repair in San Jose, CA

Same-day heat pump repair for Bay Area homes and businesses. Free diagnostics – no charge to assess the problem. Licensed, EPA-certified team, available 24/7. If we can’t fix it on the first visit, you don’t pay a trip fee.

Serving Santa Clara & San Mateo Counties

Licensed & Insured
24/7 Service
EPA Certified
BBB Accredited

The Most Efficient Way to Heat and Cool Your Bay Area Home

HVAC technician brazing refrigerant line during heat pump repair San Jose

When your heat pump stops working, the problem is rarely obvious. It may keep running but fail to heat, freeze up overnight, or short-cycle without reaching the set temperature.

Ozone Service provides same-day heat pump repair across San Jose and the entire Bay Area.

We identify the exact issue and give you a clear written quote before any work begins. No charge. No obligation.

We hold both HVAC and electrical licenses. Since most heat pump failures involve electrical problems such as a bad capacitor, failed contactor, tripped breaker, or wiring issues, we handle everything under one contract and one warranty. No double visits, no separate invoices, and no confusion

What Every Repair Visit Includes

Every service call starts with a complete diagnostic – not a cursory look. Here’s what’s included in every visit, at no charge before any repair decision is made:

Ozone Service technician with thumbs up in front of service van San Jose

Full System Diagnostic

We test refrigerant pressure, electrical components, airflow, thermostat signal, and defrost cycle operation. We don’t assume – we measure. The diagnostic takes 45–90 minutes and covers every subsystem that could be causing the fault.

Written Repair Scope & Price

Before we touch anything, you get a written quote. What the problem is, what the fix involves, what it costs, and how long it takes. No surprises when the invoice arrives.

Same-Day Repair When Parts Are Available

We stock the most common failure parts on our service vehicles – capacitors, contactors, reversing valves, fan motors, and control boards. Most straightforward repairs are completed on the same visit as the diagnostic.

Electrical Fault Coverage

If the repair requires electrical work – panel circuit, disconnect box, low-voltage wiring, or thermostat wiring – our licensed electricians handle it in-house. No second contractor, no scheduling gap, no split accountability.

Post-Repair System Verification

After the repair, we run the system through a full heating and cooling cycle, verify refrigerant charge, check airflow, and confirm the fix held before we leave. We don’t call a job done until the system performs correctly.

Warranty on All Repairs

Parts and labor are covered. If the same issue recurs within the warranty period, we return and fix it at no charge. Ask about specific warranty terms during the service call.

This Service May Cost Less Than You Think

Bay Area utility programs and state energy incentives may offset a significant portion of your cost. We check what applies to your home and handle all the paperwork – as part of your free estimate, at no charge.

Project estimate. Detailed Scope of Work

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    Your inquiry has been received, and one of our specialists will be in touch with you shortly.

    From First Call to Completed Repair

    Step 1

    Call or Book Online

    Tell us what’s happening with your system – the symptom, when it started, and whether it’s heating, cooling, or both that’s affected. We’ll dispatch a licensed technician for same-day or next-available service. 24/7 availability for emergency situations.

    Step 2

    On-Site Diagnostic

    The technician runs a complete diagnostic: refrigerant pressures, electrical measurements, airflow checks, thermostat signal, and defrost cycle operation. This takes 45–90 minutes and is included at no charge. You’ll know exactly what’s wrong before we quote anything.

    Step 3

    Written Quote

    We present a written repair scope: what the fault is, what the repair involves, which parts are needed, and the total cost. You review it, ask questions, and decide. No pressure, no time limit. If you’re not ready to proceed, there’s no charge for the diagnostic.

    Step 4

    Repair

    Most common failures are resolved on the same visit – we stock frequently needed parts in our service vehicles. If a part needs to be ordered, we give you a specific timeline. We don’t start work until you’ve approved the quote.

    Step 5

    Post-Repair Verification

    After the repair, we run the system through both operating modes, verify refrigerant charge and airflow, and confirm the fix held. We’ll walk you through what was done, show you any replaced components, and review maintenance basics that can prevent recurrence.

    Why Bay Area Homeowners Call Us for Heat Pump Repair

    HVAC and Electrical Under One Roof

    Most heat pump failures have an electrical component. A failed capacitor. A tripped breaker feeding the outdoor unit. A low-voltage wiring fault between the thermostat and air handler. When your HVAC tech hits an electrical problem, they either guess at it or call you to find an electrician. We don’t. Our technicians hold both HVAC and electrical licenses - one visit, one scope, one warranty.

    Free Diagnostics, Written Before Any Work Starts

    We don’t charge a trip fee to look at the system. We don’t present a verbal estimate. You receive a written diagnosis and a written price before any work begins. The number you approve is the number you pay.

    Same-Day Service, 24/7 Availability

    Heat pump failures don’t happen at convenient times. We provide same-day service across San Jose and the Bay Area, with 24/7 availability for emergency situations. If you call before noon, we’ll be there the same day in most cases.

    All Major Brands Serviced

    We work on all nine brands in our portfolio - Mitsubishi, Daikin, Carrier, Trane, Lennox, Goodman, Rheem, and others. Brand-specific diagnostic tools, not generic guesswork. If the part isn’t on our truck, we source it - we don't substitute an incompatible component to close the job fast. This includes ductless mini-split systems from all major manufacturers.

    Warranty on Every Repair

    Parts and labor are covered in writing. If the same fault returns within the warranty period, we come back and fix it at no charge. No diagnostic fee, no labor charge.

    What You Get

    Common AC Repairs We Handle in San Jose

    Better Business Bureau Accredited Business badge.

    Refrigerant pressure check

    Low refrigerant doesn’t just reduce cooling – it strains the compressor until it fails. We locate the leak, repair it, and recharge the system to manufacturer spec. Adding refrigerant without fixing the source is a temporary patch that accelerates damage. Our EPA 608-certified technicians handle all refrigerant work in compliance with California regulations.

    Evaporator and condenser coil cleaning

    Dirty coils reduce efficiency by up to 30% and cause the system to run longer and hotter

    Electrical components (capacitors, contactors, wiring)

    These degrade before they fail so catching them early costs a fraction of emergency repai

    Condensate drain flush

    Prevents water damage and mold buildup common in Bay Area summer humidity

    Airflow and filter assessment

    Restricted airflow is the single most common cause of early system failure

    Thermostat calibration check

    A 2°F error makes the system run longer than it needs to, wasting energy and causing wear.

    Full system performance report

    Written findings with recommendations. You keep the report with no commitment required

    Authorized Dealer & Installer

    Daikin-Logo
    Goodman logo
    Mitsubishi
    Logo of the Carrier Corporation
    Gree electric appliances logo
    Gree electric appliances logo
    Logo bryant
    harvest logo

    Real Repairs, Real Results

    Our in-house team finished all of the projects shown here. They correctly diagnosed the problem, fixed it, and checked it before we left the house.

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    What Our Customers Say

    Posted on Google Google
    Sean profile picture
    Sean
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Great experience during a heatwave! Ilya arrived right on time, quickly diagnosed the AC issue, and explained that my parts were covered under warranty. He also gave me clear advice on potential future issues with my overall system. Very honest, knowledgeable, and punctual. Highly recommended!
    Posted on Google Google
    Dee Stewart profile picture
    Dee Stewart
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    I got a new furnace installed with Ozone Service and was helped by Konstantin. He was excellent, patient and on top of everything, and the installers were very competent and all went smoothly. I would highly recommend Ozone Service and Konstantin.
    Posted on Google Google
    Chubbi Rajagopal profile picture
    Chubbi Rajagopal
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Andrew from ozone came for diagnostic. He was very helpful in explaining everything for us. I would highly recommend ozone.
    Posted on Google Google
    Gregory Lulyev profile picture
    Gregory Lulyev
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Bert accurate. Good explanation
    Posted on Google Google
    Q QQQ profile picture
    Q QQQ
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Konstantin is extremely knowledgeable, experienced, and completely honest. He analyzed all potential scenarios and gave 100% accurate information without any guesswork. Truly professional and reliable
    Posted on Google Google
    Satish (Sunny) profile picture
    Satish (Sunny)
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Very good
    Posted on Google Google
    Vinh Le profile picture
    Vinh Le
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Called OZONE late Friday night and had Andrew out by 8am Saturday. He diagnosed the failed starting component quickly, had the part on the truck, and had the system running and verified cold before he left. On time, no upselling on a old unit, one-year warranty on the repair. Exactly what you want from a service call. Highly recommend.
    Posted on Google Google
    John Waite profile picture
    John Waite
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Very quick on-site response to discuss design options, equipment locations and electrical requirements.
    Posted on Google Google
    Ed James profile picture
    Ed James
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Konstantine and Paul (and one other) were excellent. Price as the best among 5 quotes. Professional. Replaced our 3.5 ton carrier gas+AC with a daikin 3.5 ton heat pump in 2 days (all to code with permits, inspectors pending).
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    Commercial Heat Pump Repair

    We service heat pump systems in commercial properties across the Bay Area – office buildings, retail spaces, multi-unit residential, and light industrial. Commercial repair follows the same diagnostic-first process: full assessment, written scope, and no work started without approval.

    For commercial service calls, contact us directly. We’ll discuss your system, expected timeline, and whether a service agreement makes sense for your property.

    Ozone Service technician inspecting or adjusting an HVAC system outdoors.

    Heat Pump Repair - Answered Honestly

    My heat pump is running but not heating. What’s wrong?

    The most common cause is a reversing valve stuck in cooling mode or a refrigerant charge that’s dropped low enough to prevent effective heat transfer. Less commonly, it’s a defrost control issue preventing the outdoor unit from operating correctly in colder weather. We diagnose all three during the standard service call.

    The cost of a heat pump repair depends on what’s broken. We don’t charge for the diagnostic visit – you receive a written quote before any work begins. The ranges below reflect typical repair costs in the Bay Area market.

    Yes. We visit, run a full system diagnostic, and give you a written repair scope and price. There’s no charge for the diagnostic. If you decide not to proceed, you don’t pay for the visit.

    The decision depends on system age, fault type, and repair cost relative to replacement. If the system is under 8 years old and the fault is a single failed component, repair almost always makes more sense. If the compressor has failed on a system over 10 years old, replacement is usually the better financial decision. We’ll give you both numbers so you can decide without pressure.

    We service all nine brands in our portfolio: Mitsubishi, Daikin, Carrier, Trane, Lennox, Goodman, Rheem, and others. We carry brand-specific diagnostic tools and order OEM parts when available.

    It depends on the noise. A rattling that started recently is often a loose part or debris – low urgency, but worth checking. Grinding or metal-on-metal sounds usually mean a bearing failure in the fan motor or, in serious cases, a compressor problem – turn the system off and call us. Running a system with a failing compressor can turn a repair into a full replacement.

    Parts and labor are covered in writing. If the same fault recurs within the warranty period, we return and fix it at no charge – no diagnostic fee, no labor charge. Ask about specific terms during the service call.

    Heat Pump Not Working? We'll Diagnose It Today - Free

    Same-day service across San Jose and the Bay Area. A licensed technician runs a full diagnostic, identifies the fault, and gives you a written repair scope and price before any work begins. No charge for the visit.

    Project estimate. Detailed Scope of Work

      Privacy Policy | Terms of Service

      Thank you for reaching out!

      Your inquiry has been received, and one of our specialists will be in touch with you shortly.

      Serving the Greater Bay Area

      San Jose
      Cupertino
      Campbell
      Palo Alto
      Milpitas
      Redwood City
      Menlo Park
       Morgan Hill

      * and other cities across Santa Clara and San Mateo counties

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