FULLERTON HVAC Repair & Installation | J Martin
5,000+
customers served
4.9/ 5
average rating
100%
customer satisfaction
10+
years experience
Our Fullerton Services:
Looking for reliable HVAC service in Fullerton?
J Martin Indoor Air Quality is the top-rated heating and air conditioning contractor serving Fullerton homeowners since 2014. We provide same-day AC repair in Fullerton, expert furnace service, heat pump installation, duct cleaning, and complete indoor air quality solutions. With a 4.9-star rating and over 5,000 satisfied customers, we're the HVAC company Fullerton families trust.
As a family-owned Fullerton HVAC company, we understand the unique challenges homes in this area face from summer heat in northern Orange County, to aging ductwork in homes built during the post-World War II housing boom of the 1950s-1970s. From Sunny Hills to Downtown Fullerton, Amerige Heights to West Coyote Hills, when you need air conditioning repair in Fullerton or a heating contractor you can trust, call J Martin.
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![happy J Martin HVAC customers from Fullerton providing testimonial review]()
They did a fantastic job for an extremely fair price.
“Had our A/C replaced along with the ducting, and new insulation. We even went with a single system that was zoned (2) to save on power a bit (why have the A/C on upstairs when you’re downstairs, and vice versa). They did a fantastic job for an extremely fair price and to top it off they were professional, clean and courteous. Couldn’t have asked for a better experience, so if you’re looking for any A/C work to be done I couldn’t think of a better company to call. Major shoutout to Brandon, Robert, Cliff and Gerry….they showed up on time, kept everything clean and always informed me of what was going on. Give em a raise JMartin!”
— MATTHEW KERR
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![Fullerton HVAC customer testimonial portrait]()
It is a small family run business and they truly do care about their customers.
We have used J Marin two times in the last couple of years. We have been extremely happy with the communication, customer service and installation process. It is a small family run business and they truly do care about their customers. We first installed a whole house fan - which I would recommend to anybody even considering it. The installers were friendly, efficient and did a great job of making sure everything was cleaned up. Most recently, we decided it was time to upgrade our air conditioning unit. This was a much bigger job so I made sure to get several quotes from other companies. Long story short, J Martin had the best price and offered a much better unit, including replacing all the ducts and repositioning our condenser to a different area in our backyard. They were able to get us scheduled within a weeks time and finished the job the same day. The installers were great. They took the time to explain how the new unit works with our Nest thermostat and made sure they cleaned everything up. I highly recommend this company. Again, it is family owned. You are dealing directly with the owner Jared or his father. They will do whatever they can to earn your business.”
— NANCY WARD
Why Fullerton Homeowners Choose J Martin
Frequently Asked Questions | Fullerton HVAC
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AC repair costs in Fullerton typically range from $150-$500 for common repairs like capacitor replacement, refrigerant recharge, or fan motor repair. More complex repairs can run higher. We provide upfront pricing before any work begins, so you know exactly what to expect. Call (714) 462-4686 for a free diagnosis.
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J Martin Indoor Air Quality is consistently rated the best HVAC company in Fullerton, with a 4.9-star rating serving over 5,000+ Orange County families since 2014 and have deep experience in every Fullerton neighborhood from Sunny Hills to Downtown Fullerton to Amerige Heights.
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Yes. J Martin provides emergency AC repair in Fullerton with same-day service available. When your air conditioner dies during a heat wave, call (714) 462-4686 and we'll dispatch a technician as quickly as possible.
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We offer same-day HVAC service in Fullerton for most calls. During peak summer months, non-emergency appointments may be next-day, but we always prioritize AC emergencies during heat waves.
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General rule: if your AC is under 10 years old and repair costs are less than 50% of replacement cost, repair usually makes sense. If your system uses R-22 refrigerant (phased out in 2020), is over 15 years old, or needs frequent repairs, replacement is often more cost-effective. We'll give you honest advice based on your specific situation.
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We recommend annual HVAC maintenance for Fullerton homes. Ideally, service your AC in spring before summer heat arrives, and your heating system in fall. Regular maintenance prevents breakdowns, extends system life, lowers energy bills, and keeps your warranty valid.
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J Martin installs and services all major HVAC brands including Carrier, Lennox, Trane, Goodman, American Standard and others. We're also certified QuietCool whole house fan installers.
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Yes. Every J Martin technician is fully licensed, bonded, insured, and background-checked. CA Contractor License #998956.
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Yes. We offer financing options for AC replacement and new HVAC installations. Ask about current promotions and rebates, including California energy efficiency incentives and federal tax credits for heat pumps.
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Absolutely. Fullerton's mild climate (winter lows rarely below 38°F) is ideal for heat pumps. They work as both heater and AC, run 30-50% more efficiently than gas furnaces in our climate, and qualify for California rebates plus federal tax credits up to $2,000. For most Fullerton homes, a heat pump is the smartest long-term investment.
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A single-zone ductless mini-split installation in Fullerton typically runs $3,000-$5,000 depending on the brand and capacity. Multi-zone systems (2-4 indoor units) range from $5,000-$12,000. Mini-splits are often cheaper than extending ductwork to room additions or converted garages.
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Consider a mini-split when you have a room addition, converted garage, ADU, or a room that's always too hot or cold. Mini-splits are also ideal for older Fullerton homes without existing ductwork, or when you want zone control without replacing your whole system.
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Most Fullerton homes built before 2000 are under-insulated by today's standards. If your upstairs is always hotter than downstairs, your AC runs constantly, or you can see ceiling joists in your attic, you likely need more insulation. We offer free insulation assessments.
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Fullerton's climate is ideal for whole house fans. Summer evenings cool down into the 60s and 70s, and low humidity means comfortable nights year-round. A whole house fan pulls that cool air through your home in minutes, letting you turn off the AC. Many Fullerton homeowners save 50-90% on cooling costs by using whole house fans 6-8 months per year.
Serving Fullerton Since 2014
Fullerton isn't like other Orange County cities. Founded in 1887 and incorporated in 1904, this city of 143,000 residents is known as "The Education Community" for being home to California State University, Fullerton (the largest campus in the CSU system) and Fullerton College. From the vibrant Downtown Fullerton entertainment district to the hillside homes of Sunny Hills, from the master-planned community of Amerige Heights to the historic neighborhoods near the Muckenthaler Cultural Center, Fullerton homeowners expect quality. That's what J Martin delivers.
Covering 22.4 square miles in northern Orange County, Fullerton's diverse housing stock ranges from historic homes built in the 1920s-1930s to modern developments from the 2000s. The city's agricultural past (once having more orange groves than any other U.S. municipality) transformed during the post-WWII boom, with major residential development from the 1950s through 1980s creating most of today's neighborhoods.
A few of the fullerton Communities we have Served:
Sunny Hills - Fullerton's premier hillside neighborhood in the northeast, built mostly 1960-1990. Homes here (1,500-3,000 sq ft, median $1.36M) sit on gently sloping streets with valley views. Many have original HVAC systems from 30-60 years ago needing replacement. Sunny Hills High School is one of Orange County's top-rated schools.
Amerige Heights - Master-planned community built 2001-2004 on the former 293-acre Hughes Aircraft campus. Mix of single-family homes, townhomes, and condos (1,800-3,500 sq ft). Newer construction means more modern HVAC systems, though some original 20-year-old systems are now due for replacement. Features Amerige Heights Town Center with shopping and dining.
West Coyote Hills - Northern Fullerton hillside neighborhood with homes built 1970s-1990s. Properties here (1,600-3,200 sq ft) sit at higher elevations with excellent views but south and west-facing homes get intense afternoon sun requiring properly sized AC systems and good insulation.
Downtown Fullerton - Historic heart of the city with a mix of housing types. Historic homes from 1920s-1950s (1,200-2,400 sq ft) often have additions, converted garages, or ADUs. Mix of apartments and condos near Cal State Fullerton. Vibrant nightlife, restaurants, and entertainment district.
Golden Hill - Established neighborhood with historic homes from 1920s-1970s. Charming properties (1,400-2,500 sq ft) near Golden Hill Elementary and the Muckenthaler Cultural Center. Many homes have aging HVAC infrastructure requiring updates.
Coyote Hills - Scenic neighborhood with homes built 1980s-2000s near Coyote Hills Golf Course. Properties (1,800-3,500 sq ft) benefit from mature trees and proximity to Craig Regional Park. Mix of original and replaced HVAC systems.
Rolling Hills - Family neighborhood with homes built 1960s-1980s. Properties (1,500-2,800 sq ft) near Craig Regional Park. Many homes have original or first-generation replacement HVAC systems now 30-50 years old.
The Fox Block - Downtown Fullerton near the historic Fox Fullerton Theatre (1925). Mix of historic homes, apartments, and condos. Proximity to the entertainment district and Fullerton Transportation Center. Diverse housing requires specialized HVAC approaches.
We've serviced HVAC systems in every fullerton neighborhood:
Why does this matter for HVAC In fullerton?
A contractor who knows your community isn't guessing at what you need. We know that Sunny Hills and West Coyote Hills hillside homes need larger AC capacity for elevation and sun exposure. We understand that historic Downtown and Golden Hill properties may have additions or converted spaces requiring mini-splits. We know Amerige Heights has newer construction with modern systems. We understand that the post-WWII boom neighborhoods have 50-70-year-old homes with aging HVAC infrastructure. That's the difference between someone who sells you something and someone who actually solves your problem.
Why Fullerton Homes Need Reliable HVAC
fullerton CLIMATE & HVAC CHALLENGES
Fullerton sits in northern Orange County, approximately 11 miles inland from the Pacific Ocean, creating specific climate patterns that affect your heating and cooling:
Summer Heat: From June through September, Fullerton temperatures regularly reach the mid-to-high 80s, with August averaging 85°F and heat waves pushing above 95°F. Being inland means temperatures run 5-10°F hotter than coastal communities. Your AC works hard here.
Inland Location: Unlike coastal Orange County cities that benefit from ocean breezes, Fullerton sits inland enough that marine air arrives diminished. Summer afternoons can be hot, requiring AC systems to run during heat waves.
Hillside Sun Exposure: Sunny Hills, West Coyote Hills, and hillside properties throughout northern Fullerton get intense sun exposure. South and west-facing homes require larger AC capacity and benefit from radiant barriers.
Mild Winters: Winter lows average 45-52°F, rarely dropping below 38°F. This makes Fullerton ideal for heat pump systems, which work efficiently in mild climates. Many homeowners switch from traditional furnaces to heat pumps and save 30-50% on heating costs.
Diverse Housing Stock: Fullerton's 140-year history means homes from every era. Historic 1920s properties, post-WWII 1950s-1970s tracts, and modern 2000s developments all have different HVAC needs and challenges.
Cal State Fullerton Student Population: With 40,000+ students at CSUF, many homes have been converted to rentals or have ADUs, creating unique HVAC needs for independent living spaces.
Common HVAC Problems We See in fullerton:
Aging post-WWII housing stock - Most Fullerton homes were built 1950-1980 during the post-war boom. Many have original or first-generation replacement HVAC systems now 30-70 years old. The symptom: constant repairs, high energy bills, uneven cooling.
Hillside home sun exposure - Sunny Hills and West Coyote Hills properties on south and west-facing slopes get maximum sun exposure. Undersized AC systems can't keep up. The symptom: AC runs all day but house never feels comfortable.
Historic home additions and conversions - Many older Fullerton homes (especially Downtown and Golden Hill) have room additions, converted garages, or ADUs added over the years. Original HVAC systems weren't sized for the additional space.
R-22 refrigerant systems - R-22 (Freon) was banned in 2020. Many Fullerton homes built in the 1980s-1990s still use R-22. Repair costs are astronomical and replacement is the only practical option.
Deteriorated ductwork - After 50-70 years in attic heat (150°F summers), original ductwork insulation has broken down and joints have separated. The symptom: hot and cold spots, dusty air, high energy bills.
Student rental HVAC abuse - Homes near CSUF rented to students often have neglected HVAC maintenance, thermostats set to extremes, and windows left open while AC runs.
Schedule Your Fullerton HVAC Service Today
AC Repair Fullerton
When your air conditioner breaks down in Fullerton, you need fast, reliable service. Not a week-long wait. J Martin offers emergency AC repair in Fullerton with same-day appointments available. Our trucks are fully stocked, so most Fullerton AC repairs are completed in a single visit.
Signs you need AC repair:
AC running but not cooling
Strange noises (grinding, squealing, banging)
Water leaking around the unit
High energy bills
Hot and cold spots
AC cycling on and off constantly
Burning smell when AC runs
Our Fullerton air conditioning services:
Emergency AC repair (same-day)
Central air conditioning installation
AC replacement and system upgrades
Ductless mini-split installation
Zoned cooling systems
AC tune-ups and maintenance
Smart thermostat installation (Nest, Ecobee, Honeywell)
AC Repair Cost in Fullerton: Most AC repairs range from $150-$500 depending on the issue. We provide upfront pricing before any work begins. No surprises.
HVAC Maintenance Fullerton
Regular maintenance is the cheapest way to avoid expensive repairs. Most HVAC breakdowns we see in Fullerton could have been prevented with annual tune-ups. A well-maintained system also runs more efficiently, lowering your energy bills and lasting years longer.
What's included in our Fullerton HVAC maintenance:
AC Tune-Up:
Check refrigerant levels
Clean condenser coils
Inspect and clean evaporator coils
Check electrical connections
Test capacitors and contactors
Lubricate moving parts
Check thermostat calibration
Inspect ductwork for leaks
Replace air filter
Test system performance
Heating Tune-Up:
Inspect heat exchanger for cracks
Check gas connections and pressure
Clean and adjust burners
Test ignition system
Inspect flue and venting
Check safety controls
Lubricate motors and bearings
Test thermostat operation
Replace air filter
Carbon monoxide safety check
When to schedule maintenance:
AC tune-up: Spring (March-May) before summer heat
Heating tune-up: Fall (September-November) before winter
Or schedule both in spring or fall and get it done at once
Maintenance plans: Ask about our maintenance membership. Members get priority scheduling, discounts on repairs, and two tune-ups per year at a reduced rate.
Why maintenance matters in Fullerton: Your AC works hard here. From June through September, it runs during heat waves, especially in hillside neighborhoods like Sunny Hills and West Coyote Hills. Fullerton's inland location means hotter temperatures than coastal areas. That's a lot of wear. Systems that get annual maintenance last 15-20 years. Systems that don't often fail at 8-10 years. The math is simple.
Heating & Furnace Repair Fullerton
Need furnace repair in Fullerton? When temperatures drop into the 40s and your heating system fails, J Martin provides fast heating repair in Fullerton, CA. Whether your furnace won't ignite, your heat pump is blowing cold air, or you need a complete system replacement, our certified technicians have you covered.
Signs you need heating repair:
Furnace not turning on
Blowing cold air
Strange smells (burning, musty, rotten egg)
Yellow pilot light (should be blue)
Carbon monoxide detector going off
Uneven heating throughout the house
Our Fullerton heating services:
Furnace repair and replacement
Heat pump installation and service
Heating system tune-ups
Gas furnace service
Electric heating repair
Thermostat upgrades
Why Heat Pumps Make Sense in Fullerton: Fullerton's mild climate (rarely below 38°F) makes it perfect for heat pump systems. Heat pumps provide both heating and cooling from one unit, work more efficiently than gas furnaces in mild weather, and qualify for California rebates and federal tax credits. We install Carrier, Lennox, Trane, and other top brands.
Heat Pump Installation Fullerton
Heat pumps are the smart choice for Fullerton homes. Here's why:
Fullerton's mild climate (winter lows rarely below 38°F) is exactly where heat pumps work best. Unlike traditional systems that burn gas to create heat, heat pumps move heat from outside air into your home. In Fullerton's moderate temperatures, they run at peak efficiency.
Benefits of heat pumps in Fullerton:
One system for heating and cooling - Replaces both your furnace and AC
Lower energy bills - 30-50% more efficient than gas furnaces in mild climates
California rebates - State incentives for high-efficiency heat pumps
Federal tax credits - Up to $2,000 for qualifying heat pump installations
Better for air quality - No combustion, no gas byproducts
Quieter operation - Modern heat pumps run quieter than traditional AC units
Best heat pump candidates in Fullerton:
Homes with aging gas furnaces (15+ years old)
Homeowners looking to reduce energy costs
Families concerned about indoor air quality
Anyone replacing both AC and furnace at the same time
Heat pump brands we install: Carrier, Lennox, Trane, Rheem, Daikin, Mitsubishi, and other top manufacturers. We'll help you choose the right system for your home's size, layout, and your budget.
Ask about current rebates - California and federal incentives change frequently. We stay current on all available programs and help you maximize savings.
Indoor Air Quality Services Fullerton
Between aging ductwork in 50-70-year-old homes, traffic from I-5 and SR-91 freeways, and converted garages or ADUs with independent air needs, many Fullerton homes could benefit from improved indoor air quality. J Martin provides professional duct cleaning in Fullerton, air purification systems, and ventilation services to keep your family breathing clean air.
Our Fullerton air quality services:
Professional duct cleaning
Duct repair and sealing
Complete duct replacement
Air purification and filtration systems
Humidity control
Whole-house ventilation
QuietCool whole house fan installation
Duct Problems Are Common in Fullerton: Most Fullerton homes built during the 1950s-1970s boom have original ductwork that's 50-70+ years old. After decades baking in attic heat, ducts crack, joints separate, and insulation deteriorates. Signs of duct problems: rooms that are always hotter or colder, dusty air, high energy bills, or visible damage in your attic.
Fullerton Air Quality Challenges: Proximity to I-5 and SR-91 freeways means traffic pollution. Construction dust from ongoing development. Cal State Fullerton's 40,000+ students create dense population. Many Fullerton homeowners invest in HEPA filtration, air purification systems, or whole-house air cleaners.
Attic Insulation Fullerton
Poor attic insulation is one of the biggest energy wasters in Fullerton homes. In summer, Fullerton attics can reach 150°F or higher, especially in hillside neighborhoods. Without proper insulation, that heat radiates down into your living space, forcing your AC to work overtime. In winter, heat escapes up through the ceiling.
Signs you need more attic insulation:
High energy bills despite a newer HVAC system
Upstairs rooms much hotter than downstairs
AC runs constantly but house never feels comfortable
You can see the ceiling joists in your attic (insulation too thin)
Insulation is flat, compressed, or deteriorated
Insulation issues common in Fullerton: Many Fullerton homes built in the 1950s-1970s have original insulation that's now 50-70 years old. It's compressed to 50% of original thickness, settled, and no longer effective. Homes that met code minimums from decades ago are severely under-insulated by today's standards.
Our attic insulation services:
Insulation inspection and assessment
Blown-in fiberglass insulation
Blown-in cellulose insulation
Batt insulation installation
Radiant barrier installation
Old insulation removal
Air sealing (stops air leaks before adding insulation)
Radiant barriers for hillside homes: Sunny Hills and West Coyote Hills homes with maximum sun exposure benefit greatly from radiant barriers. These reflective barriers can reduce attic temperatures by 20-30°F, dramatically reducing AC load.
Rebates and incentives: Southern California Edison and SoCalGas offer rebates for insulation upgrades. Ask us about current programs.
Ductless Mini-Split Installation Fullerton
Ductless mini-splits are perfect for Fullerton homes that need flexible cooling and heating without major construction. These systems have an outdoor compressor and one or more indoor units mounted on walls, delivering conditioned air directly where you need it.
When mini-splits make sense in Fullerton:
Room additions - Added a bedroom, office, or ADU? Mini-splits cool and heat without extending ductwork.
Garage conversions - Many Fullerton homeowners convert garages to home offices, studios, or rental units. Mini-splits are the easiest way to climate control these spaces.
Historic home additions - Downtown and Golden Hill homes with additions added over the years often need independent climate control.
CSUF student housing - Homes converted to student rentals often add rooms or ADUs requiring mini-splits.
Hot rooms - That upstairs bedroom that's always 10 degrees hotter? A mini-split solves it without replacing your whole system.
Zoned comfort - Want different temperatures in different rooms? Multi-zone mini-splits let each room have its own thermostat.
Benefits of ductless mini-splits:
No ductwork needed (saves thousands in installation)
Individual room temperature control
Highly efficient (up to 30 SEER ratings)
Quiet operation
Sleek wall-mounted design
Both heating and cooling in one unit
Mini-split brands we install: Mitsubishi, Daikin, Fujitsu, LG, Carrier, and other top manufacturers. Single-zone and multi-zone configurations available.
Whole House Fan Installation Fullerton
Whole house fans are extremely popular in Fullerton and for good reason. On summer evenings when temperatures drop below 75°F, a whole house fan pulls cool outside air through your home and pushes hot air out through the attic. Many Fullerton homeowners use whole house fans instead of AC for 6-8 months per year, cutting cooling costs by 50-90%.
J Martin is a certified QuietCool whole house fan installer in Fullerton. The new QuietCool models are dramatically quieter than older whole house fans (which sounded like helicopters) and can cool your entire home in 3-4 minutes.
Why Fullerton is Perfect for Whole House Fans:
Summer evening temperatures drop into the 60s and low 70s
Low humidity means cool nights year-round
Elevation in Sunny Hills and West Coyote Hills enhances evening cooling
ROI is typically 2-3 years through AC savings
HVAC Service Areas in Fullerton
J Martin provides heating and air conditioning services throughout Fullerton, including all neighborhoods and surrounding communities.
Fullerton Neighborhoods We Serve:
Sunny Hills
Amerige Heights
West Coyote Hills
Coyote Hills
Downtown Fullerton
Golden Hill
Rolling Hills
The Fox Block
Muckenthaler Cultural Center Area
College Park (near Cal State Fullerton)
Santa Fe District / SoCo
President Homes
Las Palmas Hermosa
Raymond Hills
Schools We've Served Families Near:
Nearby Landmarks:
Downtown Fullerton (entertainment district)
Fullerton Arboretum (26 acres)
Fox Fullerton Theatre (historic, 1925)
Craig Regional Park
Amerige Heights Town Center
City Resources:
Additional Cities We Serve:
J Martin Indoor Air Quality provides HVAC service throughout Orange County and surrounding areas.
Aliso Viejo | Anaheim | Anaheim Hills | Brea | Chino | Chino Hills | Corona | Coto de Caza | Diamond Bar | Fountain Valley | Fullerton | Irvine | Ladera Ranch | Laguna Hills | Laguna Niguel | Lake Forest | Mission Viejo | Newport Beach | Orange | Placentia | Rancho Santa Margarita | Santa Ana | Trabuco Canyon | Tustin | Villa Park | Yorba Linda
Don't see your city? Call (714) 462-4686. We likely serve your area.
Ready to feel the difference?
Ready for reliable HVAC service from a company that actually knows Fullerton? Contact J Martin Indoor Air Quality for:
- Same-day AC repair in Fullerton
- Free estimates on new installations
-Upfront, transparent pricing
-Licensed, background-checked technicians
-100% satisfaction guaranteed
J Martin Indoor Air Quality 4212 E La Palma Ave Anaheim, CA 92807 Phone: (714) 462-4686 Website: jmartiniaq.com