ASI Heating & Air service truck parked outside customer home
4.8 (7.2k)
Bonita HVAC & Plumbing

Trusted HVAC & Plumbing Services in Bonita, CA

From the Bonita Golf Course area to Sunnyside and the neighborhoods along Bonita Road, ASI's White Glove technicians deliver expert heating, air conditioning, and plumbing service to Bonita homes and businesses.

Same-Day Service
All Brands Serviced
Since 1952

Bonita's Trusted HVAC & Plumbing Experts

Bonita is an unincorporated community nestled between Chula Vista and National City, known for its tree-lined streets, spacious lots, and quiet residential character. While Bonita enjoys a moderate South Bay climate, its slightly elevated terrain and distance from the immediate coast mean warmer summers and cooler winters than bayfront neighborhoods just a few miles west. Many Bonita homes were built in the 1970s through 1990s, and their HVAC and plumbing systems are now reaching the age where proactive maintenance and experienced repair service make all the difference. Since 1952, ASI has been the trusted choice for South Bay communities like Bonita.

Whether you live near the Bonita Golf Course, along Bonita Road, in the Sunnyside area, near Sweetwater Regional Park, or anywhere in the 91902 zip code, our certified White Glove technicians arrive on time with fully stocked trucks—ready to diagnose and resolve your issue in a single visit whenever possible. We service all major brands and never charge extra for nights, weekends, or holidays.

ASI Hastings service truck
Our Services in Bonita

HVAC & Plumbing Services for Bonita Homes

Explore the full range of home comfort services ASI provides to Bonita residents. Click any service below to learn more.

Heating Services

Heating Services

Bonita's inland South Bay location means winter nights can drop into the upper 30s to low 40s—noticeably colder than the coast just a few miles west. Many homes in the community were built in the 1970s and 1980s with furnaces that are now aging and losing efficiency. ASI's factory-trained technicians provide honest assessments of your heating system and can repair or replace it with the right solution for your home.

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Air Conditioning

Air Conditioning

Summer temperatures in Bonita regularly climb into the mid-to-upper 80s, with heat waves pushing into the 90s. The community's inland position and rolling terrain mean limited coastal cooling, making a reliable AC system essential for comfort. Our certified technicians diagnose issues accurately and recommend the most cost-effective path to keeping your home cool.

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Plumbing Services

Plumbing Services

Bonita's 1970s through 1990s housing stock is at the age where copper pipe corrosion, hard water mineral buildup, and water heater failures become increasingly common. The area's larger lot sizes often mean longer plumbing runs with more potential failure points. ASI's licensed plumbers are experienced with Bonita's housing and provide upfront pricing on every job.

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Sewer & Drain

Sewer & Drain

Bonita's mature trees and established landscaping are a primary source of sewer line root intrusion, and the community's rolling terrain contributes to ground movement that stresses aging pipe joints. ASI uses HD sewer camera inspections to pinpoint problems precisely and offers trenchless repair options that protect your property's landscaping.

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Water Heaters

Water Heaters

Hard water in the South Bay area causes persistent mineral buildup in water heaters, reducing efficiency and shortening their lifespan. Many Bonita homeowners discover their water heater failing sooner than expected. Our plumbers provide honest evaluations and professional installations—tank or tankless—with comprehensive warranties on every job.

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Indoor Air Quality

Indoor Air Quality

Bonita's proximity to open spaces and Sweetwater Regional Park means seasonal pollen, dust, and occasional wildfire smoke can affect indoor air quality. ASI offers whole-house filtration, purification, and ventilation solutions designed to keep your Bonita home's air clean and healthy year-round.

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Ready to Get Started?

Schedule your service today and experience the White Glove difference.

The ASI Difference

Why Bonita Homeowners Choose ASI

Bonita homeowners choose ASI because we deliver the same honest, expert service to every community we serve—backed by over seven decades of experience.

Fast Local Response

Our technicians serve Bonita and the South Bay area daily, ensuring fast arrival times. Same-day service is available with no extra charges for nights, weekends, or holidays.

Certified White Glove Technicians

Our factory-trained, background-checked technicians are experienced with Bonita's established homes and larger properties. They treat every home with respect—wearing booties and laying down drop cloths.

Upfront, Honest Pricing

We provide transparent pricing before beginning any work in your Bonita home. No hidden fees, no surprise charges—just honest recommendations from experienced professionals.

Iron-Clad Guarantees

Every job we perform in Bonita is backed by comprehensive warranties on parts and labor. If you're not completely satisfied, we'll make it right.

Customer Reviews

What Our Customers Say

4.8 (7.2k)

Don't just take our word for it — hear from our satisfied customers

Z zyz zyx
zyz zyx in the last week
★★★★★
Evan was super friendly and got right to work trying to fix our water heater. Great personality and wonderful communicator of the issues and options. Super satisfied with the service.
S Scott Humphrey
Scott Humphrey in the last week
★★★★★
I recently had my HVAC serviced by ASI and I can’t tell you how happy and relieved I am. Weeks earlier (back in March) I had my system HVAC serviced by Mauzy. After Mauzy left I found the cover not completely seated/installed back on the outdoor condenser unit and a screw laying on the concrete. Additionally, James L., provided me with a list (estimate via email) for the following: 1. Perform condenser coil wash $777.68 2. Remove and replace 40-amp contactor $686.86 3. Install a surge protector (SPD) $994.28 4. Replace HVAC ignitor $362.16 5. Replace flame sensor $362.16 6. Add (to the HVAC system) an extra UV (bulb) system $1,348.74 a. Grand Total = 4,531.88 Back in October 2021 Mauzy billed me $614.06 for 3 to 6 Lbs., of R410A. Back in November 2023 Mauzy billed me $2,345.89 for a new thermostat. Also, during our interaction, he was really pushing for the SPD and indicated the other components will soon fail. He made a statement that some of these SPD’s have an “expiration date” some only good for three years. I told him I have a Surge Protection Device at the main service PNL however he stated this was not good enough. As a certified CA., State WA., State Journeyman electrician I know this was not true and he was comparing an SPD to a carton of milk, very concerning. I then knew I was dealing with a technician with no electrical/HVAC knowledge – he only wanted to sell something. Shortly after he left, I started receiving TEXTS from Kaiya B., (from Mauzy) who was attempting to schedule the recommended service by James L. This is when I notified Kaiya B., that I found a cover loose and a screw on the ground and how disappointed I believed the service was. She got right back and stated she will forward my message to the General Manager however as of this writing I have not heard from anyone at Mauzy. I then contacted ASI and scheduled a full heating and AC service and inspection to ensure nothing else was left incomplete. That’s when the ASI technician discovered two refrigerant caps were missing. These are the caps they remove to measure the R410A refrigerant during operation (discovered by ASI) and are only accessible after removing the condenser cover. These caps were present last year during the service as I observed the service. Additionally, this is a 2025 California Plumbing Code requirement. In closing I I’m really disappointed. As an Army Veteran, 40+ years as an electrician, former building inspector and presently a plans examiner for several jurisdictions in California I feel this is a case of taking advantage of elderly people and over pricing services. The ASI technician could not believe the Mauzy price for coil wash, which was completed by ASI as part of the service call today for $87.00. The additional (other) items on the repair list from Mauzy, ASI stated were not needed looked brand new. I would like to thank the technician Jack Ryan (and ASI) for their honesty/knowledge of the system/thoroughness of the inspection/maintenance and transparency pricing. Additionally, I received a coil wash as part of the system check for a savings of $777.68 dollars. Thanks, Jack, for all your great work, honest pricing and not attempting to take advantage of an Army Veteran 😊. Scott Humphrey San Diego (Crest)
B Barbara Gill
Barbara Gill in the last week
★★★★★
Another great inspection (free) that is included in my membership with ASI. The technician, Travis Tibiatowski was extremely efficient. He answered all my questions and explained things. He inspected every nook and cranny, where water could escape, and found a couple of areas that needed attention. Travis was an extremely nice young man. I would thoroughly recommend Travis and ASI. I wish we had had this service many years ago. Definitely worthwhile.
FAQ

Bonita HVAC & Plumbing FAQ

We serve all of Bonita including the Bonita Golf Course area, Sunnyside, Bonita Long Canyon, the neighborhoods along Bonita Road and Central Avenue, and near Sweetwater Regional Park. We cover the 91902 zip code.

No. ASI never charges extra for nights, weekends, or holidays. When you have an emergency in Bonita, we respond at our standard fair rate—always.

Our technicians serve the South Bay area daily and are often already nearby. Same-day service is typically available for Bonita residents, and emergency calls receive priority scheduling.

We service all major brands—Carrier, Lennox, Trane, Rheem, York, Goodman, and more. Our trucks carry common parts so most repairs are completed in a single visit.

Yes! We offer flexible financing for HVAC replacements, water heater installations, repiping, and other significant home comfort projects. Ask us about payment plans that fit your budget.

Schedule Service in Bonita

Your Bonita Home Deserves the Best

Don't wait for a breakdown. Whether you need a routine tune-up or an emergency repair, ASI's certified White Glove technicians are ready to serve your Bonita home with honest, expert care.

Same-Day & Emergency Service Nights and Weekends Never an Extra Charge
Same-Day Service
All Brands Serviced
Upfront Pricing
100% Satisfaction Guaranteed
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