When the heat rolls through San Bernardino, CA—especially in the depths of summer—it can feel like the sun is parked directly over your home. So when your air conditioning gives out or starts struggling, the discomfort ramps up fast. Your home, meant to be a haven of comfort, suddenly turns into an oven. You don’t want to wait. You want it fixed—and fixed right.
At All Pro Cooling, Heating, Plumbing & Electrical, we understand how vital a reliable cooling system is for homes across San Bernardino, Redlands, Highland, and surrounding communities. With over three decades of dedicated service in Southern California, we’re the name families trust when their AC system needs fast, professional, and long-lasting solutions.
Whether your unit is blowing warm air, leaking water, short cycling, or making unsettling noises, our team of air conditioning professionals has the tools and expertise to get your comfort back on track—usually within a single visit. From emergency cooling services to routine diagnostics and tune-ups, we’re here to help whenever your air conditioning system starts acting up.
When homes in the know need cooling relief, they call All Pro at (909) 500-8193 for service that’s done professionally, once and for all!
Common AC Problems We See and Fix in San Bernardino Homes
Living in San Bernardino means you know how demanding our climate can be. Your air conditioning system works hard, and that workload often shows in the form of wear and tear. Here are some of the most common air conditioning repair issues our technicians see every week:
AC Blowing Warm Air
When your system is pushing out warm air on a 105°F day, it’s more than inconvenient—it’s urgent. This problem usually stems from one of the following:
- Low refrigerant levels from a leak.
- Compressor failure due to age or electrical issues.
- Dirty or clogged condenser coils that can’t expel heat.
Our techs use state-of-the-art tools to identify refrigerant leaks, test compressor function, and clean coils thoroughly. Once we’ve restored the system’s internal balance, the cool air comes back, and you can relax again.
Unusual Noises or Vibrations
Hearing grinding, banging, rattling, or buzzing? These aren’t just quirks—they’re signs something is wrong:
- Loose parts that could dislodge completely.
- Fan blade obstructions.
- Motor bearing failure or damaged belts.
Ignoring strange sounds allows minor problems to evolve into major mechanical failures. Our detailed inspections pinpoint the source and stop the damage before it snowballs.
Uneven Cooling Across Rooms
Do some rooms in your home feel like a fridge while others stay stubbornly warm? Uneven cooling is often caused by:
- Poor ductwork design or leaks.
- Blocked or dirty vents and filters.
- Aging systems with reduced airflow performance.
- Improper AC sizing for your home’s layout.
We assess your ductwork, check for airflow restrictions, and rebalance your system to help restore even, consistent comfort throughout your home.
Short Cycling
Does your AC keep turning on and off every few minutes? This issue can make your energy bills spike while still leaving your home hot and humid. Causes include:
- A miscalibrated thermostat.
- Oversized systems that cool too fast.
- Blocked airflow due to dirty filters or ducts.
Short cycling also puts your compressor under excessive stress. We perform comprehensive airflow and system size evaluations to get to the root cause.
Water Leaks or Moisture Issues
If you see moisture around the indoor unit or notice musty odors, it could be a clogged condensate drain or frozen evaporator coil. These issues, left unaddressed, can lead to:
- Mold growth.
- Water damage to walls, ceilings, or flooring.
- Reduced system efficiency.
Our team clears clogs, addresses freeze-ups, and makes sure your AC drains water properly.
Unresponsive Thermostat or Control Panel
When your thermostat doesn’t respond to input or displays inaccurate readings, your AC can’t run properly. This problem might be due to:
- Dead batteries or wiring faults.
- Faulty sensors misreading temperatures.
- A failing thermostat that needs replacement.
Our technicians will test your thermostat’s function, recalibrate if possible, or replace it with a modern, programmable unit that helps you better manage indoor comfort and energy-efficiency.
Our Thorough AC Repair Process: What to Expect
When you schedule air conditioning repair with All Pro, we don’t show up guessing. Our process is designed to be thorough, efficient, and tailored to the specific needs of San Bernardino homes.
1. Full System Diagnosis
We never guess. Our team performs a complete inspection, checking:
- Refrigerant levels
- Thermostat calibration
- Electrical components
- Compressor and fan motor condition
- Airflow measurements
- Ductwork condition
This ensures that we don’t just fix the surface problem—we resolve what caused it in the first place.
2. Advanced Leak Detection
If refrigerant levels are low, we don’t just top it off. We use UV dye, electronic sensors, and pressure testing to find the leak, seal it, and recharge the system precisely per manufacturer specs.
3. Electrical Calibration and Thermostat Repair
Loose wires, worn contactors, or faulty thermostats often cause intermittent cooling or total failure. We repair or replace parts, recalibrate settings, and ensure your controls are working as they should.
4. Post-Repair System Testing
Once repairs are complete, we run your system through its paces. We test temperature drops, cycle times, and airflow to confirm everything is working safely and efficiently.
AC Repair FAQ
What Are the Signs My AC Needs Repair?
How Much Does AC Repair Typically Cost in San Bernardino?
How Often Should I Have My AC Serviced?
Can I Handle AC Repairs Myself?
How Long Does an AC Repair Appointment Usually Take?
Will a Repair Improve My Energy-Efficiency?
When Should I Consider Replacing My AC Instead of Repairing It?
What Are the Most Costly AC Repairs?
What Is Included in Air Conditioning Maintenance and Why Is It Important?
What Are the Signs My AC Needs Repair?
Your AC may still be running, but that doesn’t mean it’s running right. Watch out for these common signs:
- Airflow feels weak or uneven
- Temperatures fluctuate between rooms
- Sudden increases in energy bills
- AC makes grinding, banging, or buzzing sounds
- Water pooling near your unit
- Unit turns on and off too frequently
These warning signs usually point to internal problems that only get worse over time. Calling early can help you avoid more expensive repairs or full system failure.
How Much Does AC Repair Typically Cost in San Bernardino?
The cost of AC repair can vary based on the issue, but here’s what influences the price:
- Complexity of the problem – Is it a simple capacitor swap or a full compressor replacement?
- Parts needed – Some components are pricier and may take time to order.
- System age and type – Older or discontinued systems may require custom solutions.
At All Pro, we provide upfront estimates before we start the work. No surprises. You’ll know the price and the scope of work in advance.
How Often Should I Have My AC Serviced?
We recommend having your air conditioning system professionally inspected and maintained once per year, ideally in the spring before the heavy cooling season begins. Regular service helps:
- Improve energy-efficiency
- Catch problems early
- Extend your system’s lifespan
- Maintain good indoor air quality
- Keep manufacturer warranties valid
We offer seasonal tune-up packages tailored to San Bernardino’s climate to ensure your system’s longevity.
Can I Handle AC Repairs Myself?
While some maintenance tasks like replacing air filters can be handled by homeowners, most AC repairs should be left to certified HVAC professionals. DIY attempts can be dangerous and may:
- Void your system’s warranty
- Result in electrical injury
- Cause refrigerant exposure (which is a federal EPA-regulated substance)
- Misdiagnose the issue and cause further damage
Always call in trained air conditioning professionals to protect your system and your safety.
How Long Does an AC Repair Appointment Usually Take?
Most repair appointments take between 1 to 3 hours, depending on the problem. Here’s how our timeline generally breaks down:
- Diagnosis: 20–45 minutes
- Repair: 30–90 minutes (if parts are available)
- Testing: 10–20 minutes
Our fully stocked trucks allow us to complete most repairs in a single visit. If your unit needs special-order parts, we schedule the return promptly to minimize downtime.
Will a Repair Improve My Energy-Efficiency?
Yes—if your system has been underperforming due to worn components or refrigerant issues, repairing it can lead to noticeable improvements in:
- Monthly utility bills
- Cooling speed and consistency
- System cycling behavior
- Overall indoor air quality and humidity control
A properly repaired and tuned AC system doesn’t have to work as hard to maintain your desired temperature, which directly benefits your wallet.
When Should I Consider Replacing My AC Instead of Repairing It?
Good question—and one we get often. Here are general guidelines to consider:
- Your system is over 12–15 years old
- You’ve had multiple repairs in the past two years
- Your unit uses outdated R-22 refrigerant
- Energy bills keep climbing despite repairs
- Your home still isn’t staying comfortable
We always give honest assessments. If repair still makes sense, we’ll handle it. If not, we can walk you through your air conditioning installation options with no pressure.
What Are the Most Costly AC Repairs?
Some air conditioning repairs are relatively minor—think thermostat replacements or capacitor swaps. But others? They can carry a much higher price tag. The most costly AC repairs typically involve major system components and labor-intensive diagnostics. These include:
- Compressor replacement – Often the most expensive part to replace, the compressor is the heart of your AC system. When it fails, you’re often better off replacing the entire unit, especially if it’s older.
- Refrigerant leaks in inaccessible locations – Repairing refrigerant leaks inside evaporator coils or underground lines can require disassembling large parts of your system or even digging.
- Blower motor failure – If your indoor blower motor fails and it’s a variable-speed or ECM motor, the part alone can be costly.
- Major control board or electrical system failure – Especially on smart or high-efficiency systems with advanced electronics.
These repairs are more likely on aging or neglected systems. That’s why regular inspections and preventive care are so important—they often catch the early signs before failure happens.
What Is Included in Air Conditioning Maintenance and Why Is It Important?
Air conditioning maintenance is one of the smartest investments you can make for the health and efficiency of your HVAC system. A thorough maintenance visit doesn’t just clean your system—it ensures every component is operating safely and effectively. Most professional maintenance appointments include:
- Checking refrigerant levels and pressures
- Inspecting and tightening electrical connections
- Cleaning the condenser and evaporator coils
- Testing thermostat calibration and system controls
- Measuring temperature differentials and airflow
- Flushing the condensate drain line
- Inspecting blower components and fan operation
- Replacing or recommending air filter service
- Checking ductwork for visible leaks or obstructions
This proactive approach helps prevent unexpected breakdowns, improves indoor air quality, extends the life of your system, and ensures maximum energy efficiency, especially important in climates like San Bernardino, where AC systems run for extended periods.
Many manufacturers even require annual maintenance to keep warranties valid. It’s not just routine—it’s protection for your comfort and your budget.
$49
Electrical SafetyEvaluation

BRING IN THE BEAR
The ALL PRO Membership
As an ALL PRO Member, you’re backed by the beary best guarantees, offers, & priority scheduling.
Optimize performance, lower energy bills, prevent costly repairs, preserve warranties & experience peace of mind. All is paw-sible as an ALL PRO member.
- PRIORITY SERVICE SCHEDULING Get scheduled ahead of non-members when you need a diagnostic service call.
- 4 TUNE-UPS PER / YEAR A certified technician will tune up your cooling, heating, plumbing & electrical systems.
- NO BREAKDOWN GUARANTEE We guarantee your system will not break down within six months of service. In the rare chance a breakdown does occur within six months of services, we will waive all dispatch & diagnostic fees, & apply a $100 credit towards any repair needed.
- 15% OFF SERVICE REPAIRS As a member, get 15% off service repairs & indoor air quality products
- CREDIT TOWARD INVESTMENT 100% of your membership fees (up to $500) can be credited towards a replacement.
Thousands in Value for Only
$19.99Why Choose All Pro for AC Repair in San Bernardino?
Local HVAC Services with Deep Roots
We’re not a franchise, and we’re not new to this. All Pro has been serving families in San Bernardino, Redlands, and Highland since 1991. We know the challenges homes face in this area—the punishing summer heat, the dry, dusty air, and the importance of dependable cooling. Our HVAC services are tailored specifically to these conditions.
Fully Certified Air Conditioning Professionals
Every technician on our team is fully licensed, trained, and background-checked. We don’t send just anyone to your door—we send someone you’d feel comfortable having in your home. And we never subcontract. When you call All Pro, you get All Pro.
Fast Response & Same-Day Repairs
We maintain a large local fleet so we can offer same-day appointments and 24/7 emergency service. When your home’s temperature is rising and your AC is down, we don’t make you wait.
Transparent Pricing & No Pressure
Before we touch a tool, we give you a clear estimate—no gimmicks, no surprise fees. Our focus is on long-term solutions, not short-term upsells.
Total Cooling Services
From air conditioning repair to heat pumps, ductless mini-split repair, ductwork services, and full air conditioning installation, we handle it all in-house.
Schedule Your AC Repair in San Bernardino, CA Today
If your home’s air conditioning system is faltering, don’t wait until the next heatwave pushes it over the edge. Whether you’re in San Bernardino, Redlands, Highland, or anywhere nearby, All Pro Cooling, Heating, Plumbing & Electrical is the name to call for reliable, respectful, and high-quality air conditioning services.
We work on all brands and models, and our goal is always the same: get you cool and comfortable, fast.
📞 Call us at (909) 500-8193 to book your appointment
🌐 Proudly serving San Bernardino, CA, and surrounding communities
When it comes to your family’s comfort, don’t settle. Trust the HVAC repair team that’s been keeping Southern California cool for over 30 years. Trust All Pro.
Over
3 0YEARS OF
EXPERIENCE
Top-Rated Plumbing, HVAC & Electrical Services
We remain steadfast in our commitment to providing outstanding customer service and tailoring our solutions to meet our customer’s unique circumstances. We take the time to understand your specific needs, as well as your budget, working closely with you to ensure that your problem is resolved efficiently and effectively the first time.
It’s because of our care for our customers that we have earned the 2020 Best of HomeAdvisor award and been awarded by Expertise.com as one of the best plumbers in the area.