Do you need air conditioning or heating repairs? Or maybe a replacement A/C or furnace? With San Bernardino’s hot summer days and cold winter nights both are pretty much a necessity. From residential wall heaters, packaged units, duct-less systems, heat pumps to “central air” and major commercial systems, Design Air is ready. We provide fast response Air Conditioning repair, service and air conditioning installation to all San Bernardino, California

We’re experts in all aspects of HVAC (heating, ventilating, and air conditioning) installation, repair, and maintenance. For energy-efficient upgrades we can even point you to financing opportunities.
There’s no need to suffer for days waiting for a repair, or put up with inadequate heating and cooling year after year. With one call to Design Air we’ll promptly and professionally take care of that, at affordable prices.

Fast Response HVAC Services

Design Air HVAC Contractor Professionals


Family owned and operated, Design Air was founded by a husband and wife team dedicated to doing what’s right for customers as our way to business success. After over a decade in business, we know what works! You may have heard us recommended on “Shopping with Bev” on KCAA 1050 AM.

Everyone at our company is dedicated to top-quality workmanship, materials, and equipment. We are a Rheem Top Contractor, we can install other leading brands, and service all major brands. We also strive to always provide quick and dependable services at competitive prices with friendly customer services.

Heating and A/C Repair and Service in San Bernardino

For residential and commercial HVAC repairs, our customers appreciate how our fleet of well-stocked trucks means that we’ll be there promptly, when we say we will, and can usually take care of air conditioning service and heater repairs in a single visit. Our well-trained and experienced technicians really know what they’re doing, and will perform a thorough and accurate diagnosis and then go straight to the problem for quick and efficient repairs.
We charge by the job, not by the hour. You pay only for necessary repairs, and there’s never any overtime charges.

San Bernardino HVAC Installation

commercial-air-conditioning-repair San Bernardino

Sometimes equipment simply gets too old and unreliable and needs to be replaced., or you may need to upgrade the capacity or even bring a your system up to code after a sale or purchase. As a full-service heating and cooling contractor, Design Air is well qualified for HVAC system replacements, upgrades, and new installations.
We recognize the competing choices of economy models for low initial costs, premium models for longer lifetimes and lower repair costs, and the latest high-efficiency models to minimize energy costs and reduce the impact of rate hikes. We’ll help you decide on the priorities and balance that’s right for you, and calculate the right capacity so that you have plenty of heating and cooling without the cost and inefficiencies of oversized units.

HVAC Maintenance

Once your heater or air conditioner is working again, you’ll want to keep it that way. Scheduled heater and air conditioning maintenance keeps your HVAC performing at its best, providing all the heating and cooling you need while saving energy and avoiding disruptions. Preventive heating and air conditioning service also prolongs equipment lifetime; with regular maintenance equipment should last 10 to 20 years with minimal repairs and will operate more efficiently and more reliably. You’ll save money in the long run.
Beyond years of experience, our technicians have manufacturers’ checklists for just about every make and model. That leads us to dozens of check points, tests and adjustments, scheduled part replacements, and services such as cleaning and lubricating specific items.
Our standard packages are usually perfect for homeowners, and we’re happy to arrange custom year-round heating and air conditioning maintenance programs for commercial facilities.

As a full-service HVAC installation contractor we can deliver full systems, including air handlers, duct work, registers and grills, plus thermostats and control systems. We’re also experts for electronic and UV (ultra-violet) air cleaners for improved indoor air quality in the San Bernardino area.

Our heater installation services include

  • wall heaters
  • forced-air furnaces and heat pumps

Our air conditioning installation services include

  • Packaged air conditioners
  • Split systems
  • Central air and split systems.

For low-cost cooling and energy efficiency we also install, repair, and maintain

  • Whole-house fans
  • Swamp coolers
  • Attic fans
  • Attic insulation

Recent Customer Reviews

  • Jameel Ali

    Very prompt and professional

  • Trish Thibodeaux

    Our technicians were here right on time👍🏼They are both always willing to answer any questions we have~Good job!

  • marc dobson

    Awsome service, gladI can support your bussiness

  • Moses Hernandez

    Great service I would definitely recommend it. They’ve replaced my entire AC unit and couldn’t be more happy with the work.

  • Ieleneo Iose

    We previously purchased a system from Design Air years ago, we have never had any issues and always great customer service when we call. Our technician came out today as we are relocating our system and purchasing another unit and was very helpful knowledgeable and professional. Design Air will definitely be our Air and Heating company always!!

  • Eric dannenberg

    Leo is awesome talked to him on Monday gave me an estimate with just what I told him I needed. Called later that day and got an appointment the next day at a time that was convenient for me and after looking at what I needed, the estimate that he quoted me the day before was exactly what they officially quoted me! Great service!!! Thanks Leo and design air inc

  • Deborah Battis

    Very professional, prompt, and knowledgeable. Thank you

  • We had our Heater and Air Conditioner replaced by Design Air. We were very impressed with Paul and his crew. They arrived exactly on time, installed and cleaned everything up all in a little over three hours. Everything was as promised, we would highly recommend this Company for your Heater and Air Conditioner needs.  Thank You, Paul!!!

  • Thomas & Sharron H.

    We would like to compliment Design Air for the professional and efficient installation of a new split heating and air system in out home, including a new automatic thermostat that switches between the 2 systems. They also replaced and repaired about 50' of attic/crawlspace ductwork, making sure that the air was not wasted in this unused space. From the initial visit to gain information for a proposal, obtaining city permits, installation, to arranging final city inspection, the staff was courteous, professional and showed up when they said they would (very important when having to take time off work!). Our entire installation took about 6 hours, which included all clean-up and old equipment removal. I cannot say enough about Design Air and highly recommend them for any service or heat/air equipment installation needs.

  • William W.

    A few years ago my AC unit quit working and Design Air installed a new much more efficient unit at a very fair price. Last week the AC motor stopped working and Design Air responded in less than one hour of being contacted. A new motor was ordered and installed a few working days later. True to their word they warranted the motor and the only cost was a minimal service charge. No game playing here just good old honest service and prices. I highly recommend this family owned business for all heating and AC needs.

  • I decided to go with Design Air because I liked the price of two units for my house and I felt that I could depend on Paul to provide me with service I was paying for. Paul and his crew arrived as scheduled and went to work. Two units were installed and got a tutorial on my new thermostats.
    I would recommend that Design Air be given an opportunity for your business. I am very happy with the service provided.

  • Fairy G.

    Courteous help full employees excellent service. Would definitely recommend to family and friends.

  • Geraldine Perea -Moreno Valley, CAGeraldine Perea -Moreno Valley, CA

    I was very pleased with this company.  They have came out before to fix my aire conditioner.  They are very quick and very reasonable in price.  I will tell all my friends.

  • Charles Lowe -Valley Center, CACharles Lowe -Valley Center, CA

    He is very reasonably priced.  With what we paid for the last repair he is going to take off the installation of our new unit.  He is only going to charge us $1500 for the complete installation of our new unit which includes labor.

  • Brenda Bowser -Highland,CABrenda Bowser -Highland,CA

    Paul (the owner of the company) was involved with the work from the beginning bid to the final installation.  He (and all of his employees) were extremely professional and honest.  He did not "put down" other companies who we were considering, and gave us a fair price for the work we wanted done.  This company had been recommended to us by friends and now after our very positive experience with them; I HIGHLY recommend them to anyone needing repairs on an existing system or purchasing a new one.

  • Barry V. Moreno Valley, CABarry V. Moreno Valley, CAYelp Review Click To See It On Yelp

    Superior Quality, Delivered as promised, Ahead of schedule, as in, extremely fast, and accurate! Very professional owner and crew. Flexible and patient with questions, I did a "COMPLETE" A/C / Heater/Ducts/Outlets change. and, was done in 4 hours!! Pretty Incredible!!

  • Stephanie M. San JacintoStephanie M. San JacintoYelp Review Click To See It On Yelp

    I absolutely love this company. I've never had a bad experience and have always been treated respectfully. I recommended this company to a relative. It was my brother in law's grandfather who needed the work done. He had called a different company to come out first and they said he needed a new unit. Design air came out for a second opinion and fixed what needed to be fixed that day and saved the poor old man tons of money!! I recommend this company to anyone who wants honest hardworking people working for them.

  • I had the fortunate luck in finding Design Air in the Yellow Pages. My heater went out on the coldest day this winter and Cindy set me up with David (who knows the business inside & out) that afternoon. The repair cost was minimal and after talking to their competition, am lucky to have found an honest, friendly and capable service! I can guarantee that if I had gone with their competition, they would have charged me doubled of what I paid and who knows what kind of unnecessary repairs they would have done!

    If you want upfront honesty go to Design Air!

  • PerryPerryHibu Review

    The lady who answered the phone was very helpful and got a repairman out very quickly. He checked my equipment, showed me what was wrong and what needed to be fixed. He charged a fair price and did exactly what he told me, I would recommend this company to all my friends.

  • Kyle ScantlinKyle Review

    I have been completely happy with Design Air's service! They installed a whole new unit for me and have been out to maintain it as needed. Paul has been quick to respond and to come out and service my ac as needed. (Trust me, he's more than earned his pay for the work he's done for us!) This company is honest, knowledgeable, and hard working! I recommend Design Air to anyone who needs excellent service with their ac and heater needs.

  • William D. Moreno Valley, CAWilliam D. Moreno Valley, CAYelp Review Click To See It On Yelp

    I had Design Air come out because my air conditioning wasn't working. They found the problem quickly, which was a couple wires had broke. They fixed the problem, but said since my system was old, it probably would not last much longer. About a year later my system broke again. Design Air came out and gave me a great price to replace my air and heater. They were professional and respectful. Would recommend to anyone.

San Bernardino Info

We’re pleased to be headquartered near San Bernardino’s population of 213,708 residents (and growing) and thousands of businesses. You may not know it, but the city is home to consulates from Mexico and Guatemala. We’re probably better known as the location of Norton Air Force Base and the very first McDonald’s. San Bernardino is also home to several theatrical, motorcycle, and sports events.
Special Note: Despite being known for its aquifers, high water table, and numerous springs and hot springs, we need to make severe cuts in water usage now (2015) to avoid further depletion.

Our Recent San Bernardino Projects

Air Conditioning and Heating Replacement in San Bernardino California


Residential AC Unit Installation San Bernardino, California


Air Conditioning Replacement San Bernardino, California