AC, Heating &
HVAC Services.
AC & Heating Repair, Installation & Replacement in the Inland Empire & San Gabriel Valley
AC repair, furnace repair, heat pumps, ductwork and new system installation for homes and businesses. Licensed technicians serving 26 cities across four Southern California counties, including north Orange County and Long Beach.
26 cities across four counties
Los Angeles County
San Bernardino County
Riverside County
Orange County
Don't see your city? Contact us and we'll tell you whether we can reach you.
Every HVAC Service Your Home or Business Needs.
From AC repair to full system replacement, Medrara HVAC's licensed technicians serve homeowners and businesses across the Inland Empire, San Gabriel Valley, north Orange County and Long Beach. Choose a service to see how we work and what to expect.
Repair services
AC Repair
Air conditioner not cooling, freezing up or running loud? We find the cause, quote the repair upfront and fix it right the first time, so your home stays comfortable through the Southern California heat.
- Not cooling, weak airflow or short cycling
- Frozen coils and refrigerant leaks
- Capacitors, compressors and fan motors
- Upfront pricing before any work begins
Furnace & Heating Repair
No heat, weak airflow or strange smells? Our technicians repair gas and electric furnaces and heating systems quickly and safely, so your home stays warm when the temperature drops.
- No heat or uneven heating
- Ignitors, blower motors and thermostats
- Gas, pilot and safety checks
- Upfront pricing before any work begins
Installation, maintenance & commercial
AC Installation & Replacement
A properly sized new air conditioning system, installed to code with upfront pricing and no surprises on the final bill.
- Right-sized for your home
- Efficient, quieter systems
- Financing available
Furnace Installation & Replacement
Replace an aging or failing furnace with a reliable, efficient new system, installed cleanly and backed by honest, upfront pricing.
- Correct sizing and venting
- Thermostat and duct connections
- Financing available
Heat Pump Installation
One efficient system for year-round comfort. We install and replace heat pumps for homes across Southern California.
- Heating and cooling in one unit
- Lower energy use
- New installs and replacements
Ductwork Repair & Replacement
Leaky, damaged or poorly designed ducts waste energy and leave rooms too hot or too cold. We seal, repair and replace them.
- Duct sealing and repair
- Replacement and new duct runs
- Better airflow, even temperatures
HVAC Maintenance & Tune-Ups
Seasonal tune-ups catch small problems before they become expensive breakdowns and keep your system running efficiently.
- Cleaning and full inspection
- Filter and safety checks
- Fewer breakdowns, longer system life
Commercial HVAC Services
Rooftop units, package systems and light commercial HVAC for offices, retail and other businesses across 26 cities.
- Rooftop unit repair and replacement
- Commercial installation and maintenance
- Serving businesses across 26 cities
Not sure which service you need? Call us and we'll point you in the right direction.
Repair or Replace Your AC or Furnace? Here's How to Decide.
When your air conditioner or furnace breaks down, the big question is whether to fix it or start fresh. Use our quick checker and the guidelines below, then let a licensed Medrara HVAC technician give you both prices before you decide. We serve homeowners across the Inland Empire, San Gabriel Valley, north Orange County and Long Beach.
Repair it when…
A fix will give you years of reliable comfort.
- Your AC is under about 10 years old, or your furnace is under about 15
- The problem is one isolated part, like a capacitor, ignitor or thermostat
- The repair costs well under half the price of a new system
- Your system is still under warranty
- Energy bills and comfort have been steady until now
Replace it when…
New equipment will save you money and stress.
- Your AC is past 12 to 15 years, or your furnace is past 15 to 20
- You're calling for repairs every season
- The repair cost is close to half the price of a new system, or more
- Your energy bills keep climbing and rooms are uneven, noisy or stuffy
- There's a cracked heat exchanger, a major refrigerant leak or an older R-22 system
Should I repair or replace?
Answer four quick questions for a general idea. It takes less than a minute.
Answer all four to see our suggestion.
This checker gives a general guide only. A licensed technician needs to inspect your system to give an accurate recommendation.
The 50% rule
If a single repair costs more than about half the price of a new system, replacing it is usually the smarter way to spend your money, especially on an older unit.
The age × cost rule
Multiply your system's age by the repair quote. If the result is over $5,000, replacement usually makes sense. If it's under, repair is usually the better call. It's a rule of thumb, not a guarantee.
Know the typical lifespan
Typical ranges, shown on a 0 to 25 year scale. Regular maintenance helps systems reach the long end.
Still not sure? We'll give you both prices. Our licensed technicians inspect your system and quote the repair and the replacement upfront, so you can compare and decide. Financing is available for new systems.
Homes & Businesses
Residential & Commercial HVAC Services Under One Roof
One licensed team for your home or your business, serving 26 cities across the Inland Empire, San Gabriel Valley, north Orange County and Long Beach.
&
Residential HVAC
For homeowners
AC and furnace repair, heat pumps, ductwork and new systems for homes across the Inland Empire, San Gabriel Valley and Orange County.
All home servicesCommercial HVAC
For business owners
Rooftop units, package systems, repair, replacement and preventive maintenance for offices, shops and light commercial buildings.
- Rooftop units
- Package systems
- Commercial repair
- Unit replacement
- Preventive maintenance
- Office & retail HVAC
AC & Heating Services in 26 Southern California Cities
AC repair, furnace repair, heat pumps and new system installation across the Inland Empire, San Gabriel Valley, north Orange County and Long Beach. Pick your city, or see all HVAC service areas.
Los Angeles County 10
San Bernardino County 9
Riverside County 3
Orange County 4
Don't see your city? Contact us and we'll tell you if we can reach you.
Service Questions
HVAC Service Questions, Answered Straight
Quick answers from our licensed technicians about repairs, installations, ductwork and commercial systems.
AC Repair
Cooling problems, fixed fast

01How fast can I get an AC repair appointment?
We offer same-day AC repair appointments across our service area whenever the schedule allows, and we prioritize no-cooling calls during Inland Empire heat waves. Call (909) 343-8847 and we will give you the earliest arrival window.
02Why is my air conditioner leaking water or freezing up?
The usual causes are a clogged condensate drain, a dirty filter, low refrigerant or restricted airflow. Turn the system off and let the ice melt, then call us. Running a frozen AC can damage the compressor and turn a small repair into a major one.
03Is it safe to keep running my AC if it is making strange noises?
Not for long. Grinding, squealing or banging often points to a failing motor, bearing or compressor part. Shut the system off at the thermostat and schedule a repair visit. Catching the problem early usually costs far less than replacing a burned-out component.
Heating Repair
Furnace and heat pump troubles

04What should I do if my furnace smells like gas?
Leave the home right away, do not touch light switches or use your phone inside, and call your gas utility or 911 from outside. Once the utility confirms it is safe, call us to inspect and repair the furnace before you turn it back on.
05Why does my furnace keep turning on and off?
Short cycling is commonly caused by a dirty filter, an overheating heat exchanger, a faulty flame sensor or a thermostat issue. A technician can test the safety switches and airflow to find the cause, which keeps heating bills down and protects the furnace.
06Do you repair all furnace and heat pump brands?
Yes. Our technicians service all major makes and models of furnaces, heat pumps and air conditioners. Tell us the brand and age of your system when you call and we will bring the right tools and common parts for the job.
New Installation
Right-sized systems, done properly

07What is included in a new AC or furnace installation estimate?
Your written estimate covers the equipment, labor, refrigerant lines, electrical connections, thermostat, permit handling where required and old-system removal. We explain the options in plain language and confirm the price before any work begins.
08Do you pull permits for HVAC replacement in California?
Yes, where your city requires them. System replacements generally need a permit and inspection, and we handle that paperwork so the installation is documented, code-compliant and protects your manufacturer warranty.
09What SEER2 rating should I look for in Southern California?
With long, hot cooling seasons, a higher SEER2 rating pays back faster here than in mild climates. Many homeowners find the 15 to 17 SEER2 range a strong balance of upfront cost and monthly savings. We can compare models for your home and budget.
Ducts & Air Quality
Airflow, filters and efficiency

10How can I tell if my ductwork is leaking?
Warning signs include high energy bills, dusty rooms, weak airflow at vents, rooms that never reach temperature and visible gaps or disconnected sections in the attic or crawlspace. A duct inspection can pinpoint the leaks.
11Does duct sealing really lower my energy bills?
It can. Leaky ducts in an attic can lose a significant share of the air you pay to heat and cool. Sealing and repairing them delivers conditioned air to the rooms that need it, so the system runs less and comfort improves.
12How often should I change my air filter?
Most homes should check the filter monthly and replace it every one to three months, sooner with pets, allergies or nearby dust and wildfire smoke. A clean filter protects the blower and evaporator coil and helps prevent many service calls.
Commercial HVAC
Offices, shops and light commercial

13What types of commercial HVAC systems do you service?
We repair, replace and maintain rooftop units, package systems and other light commercial heating and cooling equipment for offices, retail spaces, restaurants and similar buildings throughout our service area.
14Can you schedule work so my business is not disrupted?
We plan visits around your operating hours and the sensitivity of your space, so customers and staff stay comfortable. Let us know your schedule when you book and we will propose the least disruptive window.
15Is preventive maintenance worth it for a business?
Yes. Regular maintenance catches worn parts and refrigerant issues before they cause a breakdown on the hottest day of the year, extends equipment life and helps keep energy costs predictable. We set up visits to match your equipment and usage.