Duct Dynasty Heating & Air - HVAC Repair & AC Installation in San Diego
HVAC contractor in San Diego, CA.
In Duct Dynasty Heating & Air - HVAC Repair & AC Installation in San Diego's own words
Duct Dynasty Heating & Air has been San Diego's trusted HVAC service provider for over 30 years. As a family-owned business, we specialize in professional AC installation, air conditioning repair, furnace installation, furnace repair, heat pump service, mini-split installation, and thermostat installation. Our experienced technicians provide reliable heating and cooling repairs with personalized service you'll appreciate. We offer affordable HVAC maintenance plans to keep your system running smoothly year-round, as well as fast AC repairs when you need them most. All repairs include a 1-year warranty, fair pricing, and excellent customer care for your peace of mind.
- Trade
- HVAC contractor
- Business address
- 4401 Twain Ave #6, San Diego, CA 92120
- Telephone
- (858) 349-3571
- Website
- ductdynastysd.com
- Hours
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- Monday7:00 am - 4:00 pm
- Tuesday7:00 am - 4:00 pm
- Wednesday7:00 am - 4:00 pm
- Thursday7:00 am - 4:00 pm
- Friday7:00 am - 4:00 pm
- SaturdayClosed
- SundayClosed
From the business's Google listing, checked Oct 2026
- Register
- CA register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.
Google Reviews
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I was referred to Brian by a friend. His team did a complete HVAC system overhaul replacing 95% of our ductwork and creating a two zone heat pump system. His team did a great job, was very considerate and polite and cleaned up after every shift. We’re so thrilled with the results we wish we would have met him sooner.
Wally J.
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Extremely prompt, communicative, and responsive during all phases of preliminary analysis, bidding, construction, and post-job follow-up of a full HVAC replacement in our home. Very reasonably priced. Workers were well organized and left the job-site spotlessly clean.
Al B.
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These guys are the real deal. If your HVAC needs a repair, they will show up to diagnose and repair it -- not to upsell you a new system. Although I am certain, they are completely qualified to install a new system. Showing up early on the day of the appointment, two techs, master Gustavo and his apprentice, stripped down the interior HVAC unit looking for leaks, using a sensor that detects coolant. On the outside heat pump, they hooked up gauges to determine the pressure. They gave me a price to repair it on the spot: $700 which included their labor, 8 lbs of coolant, and a container of Stop Leak. Based on the age of my unit, a seven year old Trane, they said it made sense to repair it (and urged me to replace filters every four months). Within an hour and a half, we were up and running again. This happened during the recent heat wave, and we are very pleased with the work they did.
Lynn H.
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The owner Brian and his team did a great job replacing our furnace. The crew was super respectful and kind. They took their time explaining the new furnace and its functionality. They were quick to work with and provided us a really quick turnaround time to complete. I would definitely recommend Brian and his team to anyone, and I plan to call him for any future HVAC needs we might have.
Brian H.
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First of all.... WOW. My AC went out on Monday, July 24, 2023 and every company that I called was booked solid for a week. At 2:30am on 7/26/23 I was going through other vendors on Yelp and stumbled upon Duct Dynasty. I put in a request, hoping to hear from them during normal business hours, and low and behold Brian reached out to me at 6:45am. He was able to call me and was at my house at 10:30 (between appointments) for what we hoped would be a quick job! He, and his wife Liz, worked in a heatwave+humid as all get-out, and had my AC up and running in about 20 minutes (give or take). They had the best rate ($150/hour, with a 1 hour minimum), with no requirement to do a pre-diagnostic. He was able to diagnose and repair all in the same amount of time. They are also actively quoting us a new unit, as our current unit is not kind to the California electricity costs (and made in 1996). They have already given me a ton of options of where we could go, I have never felt better about this new, budding relationship! Thank you so much Brian (and Lizz)
Meredith R.
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Seriously.. the best service and prices I’ve ever experienced. They were quick, thoughtful and extremely knowledgeable. Would highly recommend and definitely use again!!
Danielle P.
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We’ve called on Duct Dynasty a few times in the past for HVAC service. They’ve always been responsive and service has been amazing. One time, even came out to my elderly fathers house on a holiday weekend when his AC stopped working in the middle of a heat wave! More recently had them install a new unit as part of a backyard reno. Service was excellent. Coordinated with our contractor to ensure that the install was seamless. There were some wiring issues that the technicians couldn’t figure out so Brian the owner came over at a moments notice to help problem solve! Install price couldn’t be beat. No hidden fees despite extra work to make sure everything was perfect. Can’t speak any more positively of our experience with Duct Dynasty!
Matthew S.
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Th owners and crew at Duct Dynasty are absolutely the best! Responsive and just the best possible people to work with! I highly recommend them to anyone looking for any HVAC work.
Bruce F.
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Brian has been very helpful solving my questions on the phone.
Rodrigo A.
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I can’t say more about Duct Dynasty as Brian and his crew were great and by far the best price! Thanks again
Sydney B.
About Duct Dynasty Heating & Air - HVAC Repair & AC Installation in San Diego
San Diego residential HVAC services
Duct Dynasty Heating & Air has operated for over 30 years. The company says it specializes in residential heating, cooling, ventilation, and air quality solutions. Its services include air conditioning installation, furnace repair, heat pump maintenance, mini-split installation, and thermostat setup. The company also offers spring tune-ups and maintenance plans for residential systems.
Per the American Community Survey, utility gas accounts for 51% of the heating fuel used in San Diego. For this trade, NOAA normals indicate a mean temperature of 62.5 degrees F.
Repair and installation details
The company names a one-year warranty covering both parts and labor for its repair work. It also states that financing is available for its customers. Its technicians work on various brands to provide heating and cooling repairs.
Reviewers frequently mention the team's responsiveness and their tendency to focus on necessary repairs rather than upselling new equipment. Customers have noted that the crew maintains a clean job site and provides clear explanations of system functionality.
Service ratings and availability
It is available for appointments Monday through Friday from 7:00 am to 4:00 pm.
All repairs include a 1-year warranty on parts and labor.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.
More HVAC contractors in San Diego
About San Diego
| Population | 1,406,106 (2025) |
|---|---|
| County | San Diego County |
| Average yearly snowfall | 3.5 inches |
| Heating degree days | 1,994 |
| Most common heating fuel | Utility gas |
Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.