400+ Reviews
HVAC Contractor in El Cajon, CA
Family-owned Residential & Commercial HVAC Services in El Cajon and San Diego County
Voted #1 Best HVAC Contractor in San Diego, CA
Voted “Best HVAC Contractor in San Diego” by Forbes Home Improvement Magazine, Maximum Comfort Heating & AC Repair is a family-owned business that is recognized as one of the most trusted HVAC companies in San Diego, CA. Located in El Cajon, CA they also hold an A+ rating with the Better Business Bureau and are active members of the local Chamber of Commerce in East County San Diego. These honors reflect their commitment to honesty, quality work, and outstanding customer service.
Maximum Comfort Heating & AC Repair provides fast air conditioner repair in El Cajon, Boulevard, Campo, Descanso, Pine Valley and more. Proudly serving homes and businesses throughout San Diego County and the Mountain Empire since 2018, they understand the unique challenges of rural properties and go the extra mile to service areas other companies won’t.
From ductless mini split systems and central HVAC installations to energy-efficient heat pumps and commercial package units, Maximum Comfort delivers dependable, long-lasting solutions tailored to your needs. A Certified York dealer, Maximum Comfort installs top-quality systems backed by a 10-year warranty for your peace of mind.
In addition to York systems, they service most major brands, stay up-to-date on the latest rebates and tax credits to help you save, and provide flexible financing options with low monthly payments. Military and senior discounts also available.
HEATING
COOLING
heat pump
thermostat
Why CHoose Maximum Comfort Heating and AC Repair?
When it comes to heating and cooling, you need more than just any HVAC company in San Diego — you need a local, family-owned business that puts customer satisfaction over corporate profits. Maximum Comfort provides friendly, reliable service, at an affordable price, including expert AC installation with a 10-year warranty.
We provide:
Free estimates on new HVAC installation and replacements
Free diagnostics with repair – while onsite
Over 10 years of proven experience
100% satisfaction guaranteed and hundreds of 5-star reviews
Our customers count on us for fast service, honest advice, and installations done right the first time — and that’s exactly what we deliver.
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Exceptional CUSTOMER SERVICE
HONEST & TRANSPARENT
HIGH QUALITY WORK
AC Services in El Cajon, CA
Hot summer days in East County and the Mountain Empire can be tough, but your home comfort doesn’t have to be. At Maximum Comfort Heating & Air Conditioning, we provide a full range of air conditioning services designed for the unique needs of San Diego County. From new installations to same-day AC repair in San Diego, our team is ready to provide the best HVAC service in San Diego. We go where most HVAC companies won’t.
Our cooling solutions include:
Ductless Mini Splits – Perfect for homes without ductwork, additions, garages and ADUs.
Central Air Conditioning Systems – Efficient cooling for your home with modern, high-SEER units.
Commercial Package Units – Dependable solutions for local businesses, churches, gymnasiums, and offices across San Diego County.
AC Repairs & Maintenance – Same-day service available to keep your system running when you need it most.
Heating Services in El Cajon, CA
Winters in East County and the Mountain Empire can get chilly, especially at higher elevations like Alpine, Julian and Mt. Laguna. That’s why Maximum Comfort Heating & Air Conditioning provides expert heating services designed for the unique micro climates of San Diego’s backcountry. From repairing an older furnace to installing a modern heat pump, we make sure your home or business stays warm, safe, and energy-efficient.
Our heating services include:
Furnace Installation & Replacement – High-efficiency York furnace installations built for reliability and comfort.
Heat Pumps – Energy-saving heating and cooling in one system, heat pumps are perfect for San Diego’s climate.
Ductless Mini Splits – heat and cool individual rooms for additions, cabins, ADUs, or homes without traditional ductwork.
Furnace Repair & Maintenance – Same-day furnace repair to restore heat when your system stops working.
Family-owned HVAC Company in El Cajon, CA
Living in East County San Diego and the Mountain Empire, dependable heating and cooling isn’t a luxury — it’s mandatory. If your air conditioner, furnace, or heat pump isn’t running efficiently, it can drive up your energy bills or leave you stranded in the heat or cold.
At Maximum Comfort Heating & Air Conditioning, we’re here to make sure that never happens. With more than a decade of local experience, our team delivers honest, professional HVAC service without pushy sales tactics or unnecessary repairs. As a certified York dealer, you get a 10-year warranty on new systems — but we also install and repair most major brands of central HVAC systems, ductless mini splits, and commercial package units.
Customers choose us because we value your time, respect your home, and offer affordable solutions tailored to your needs. Just take a look at our 5-star reviews from neighbors across El Cajon, Alpine, Campo, and the backcountry of San Diego County.
Looking for a trusted HVAC contractor near you? Contact Maximum Comfort today for expert installation, repair, and maintenance — and ask us about available rebates, financing, and same-day service options.
Family-owned Since 2018
Heating & Cooling Services Near you
Residential & Commercial HVAC Contractor in El Cajon, CA
Your HVAC system should keep you comfortable year-round, but when it starts making strange noises, blowing weak air, or driving up your energy bills, it’s time to call the experts. At Maximum Comfort Heating & Air Conditioning, we specialize in HVAC repair, ductless mini splits, heat pumps, commercial package units, and installing central HVAC systems. Whether you need a fast repair or a complete system replacement, our certified technicians are here to help.
As a certified York dealer, we install high-efficiency equipment built to last — but we also service most major brands. From El Cajon to Alpine, Campo, and across the Mountain Empire, our team provides reliable service you can count on.
AC Maintenance El Cajon, CA
Regular HVAC maintenance is the best way to extend the life of your system and avoid costly breakdowns. Even a brand-new system benefits from annual inspections and cleanings. At Maximum Comfort Heating and Air Conditioning, we offer seasonal tune-ups and annual maintenance plans that keep your system running at peak efficiency and save you money on energy bills while keeping your home comfortable.
Our technicians will inspect, clean, and restore your system’s efficiency, ensuring your air conditioning, furnace, or mini split performs like it should year after year. Ask us about our maintenance plans to enjoy priority scheduling, discounted repairs, and peace of mind.
El Cajon Indoor Air Quality Experts
Comfort isn’t just about temperature — it’s also about the air you breathe. At Maximum Comfort Heating & Air Conditioning, we provide complete indoor air quality (IAQ) services designed for homes and businesses in El Cajon, Alpine, San Diego County, and across Mountain Empire.
Our Indoor Air Quality services include:
Whole-home air filtration systems to reduce allergens, dust, and pollutants.
Air purifiers and UV lights that target bacteria, viruses, and mold.
Dehumidifiers and ventilation solutions to keep your indoor environment balanced.
Duct cleaning and maintenance to improve airflow and efficiency.
As a certified York dealer, we also offer advanced HVAC add-ons that integrate seamlessly with your heating and cooling system. Static filters, air scrubbers, ionizers, HEPA and carbon filters and more. Breathe easier knowing your family is protected with clean air to breath all year long.
Local Reviews
Read what our clients say about us.
"By far the best HVAC company I've ever worked with. I've used Maximum Comfort repeatedly on over 4+ jobs (residential houses throughout San Diego County) and have been more than pleased with the affordability, customer service, transparency, honesty, and quality of work. Some of the items I've hired them for: New HVAC units, mini splits...
"These guys are top-notch. Great customer service, impeccable work ethic. We had Chris do all of the work and despite the fact that he had to do multiple visits because of our schedule he was more than happy to accommodate us, without affecting our budget. There prices are very reasonable, something that you would know once you have...
"We had Maximum Comfort install our A/C this year. Was by far the most professional and reasonable priced company out there. The entire process was super easy and they were always on time. I would way rather hire the smaller company like Maximum Comfort than the big companies who's prices where almost $5000 higher!!!!"...
Ready to Book Your HVAC Service?
Don’t wait until your HVAC unit gives out in the middle of a heatwave or your heater quits on a cold night. Let the experts at Maximum Comfort Heating and Air Conditioning keep your San Diego home or business comfortable all year long.
Here’s why you can count on us for all your HVAC Services in San Diego County:
• Certified York Dealer offering some of the most reliable, efficient systems on the market.
• Skilled, Friendly HVAC technicians – trained to repair and maintain all major brands
• Money-saving guidance – help with rebates, tax credits, and flexible financing
• Local & Family-owned – backed by 5-star reviews from your neighbors
Give us a call today or book online in minutes!
Important Resources
Why Is My Furnace Short Cycling? (Turning On and Off) 6 Reasons Why
Why is My Furnace Short Cycling? If your furnace keeps turning on and off every few minutes, you’re not imagining things — that isn’t normal.
What is a Furnace Heat Exchanger? 6 Reasons They Crack & When To Fix It
What Is a Furnace Heat Exchanger? If you’ve been told you have a furnace heat exchanger issue — or worse, a cracked heat exchanger —
What are the 3 Biggest Disadvantages of a Heat Pump?
This article explores heat pump pros and cons, providing readers with a balanced understanding of the disadvantages of a heat pump as well as why