Looking for reliable HVAC solutions in San Jose, CA? Plum HVAC offers comprehensive residential and light-commercial services. We tackle common local challenges like uneven comfort, wildfire smoke IAQ, duct leaks, and aging equipment. Our professional assessments, proper sizing, and code-compliant installations are designed to prevent short cycling and costly repairs. Our services include expert installation, repair, maintenance, thermostats and zoning, IAQ upgrades, and ductwork. We'll walk you through our typical process, explain seasonal tune-ups, available incentives, licensing, and safety measures, and highlight why timely, professional work truly matters. Plum HVAC is here to help homeowners prioritize their options and take action for lasting comfort.

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(650) 605 – 5986

HVAC Company in San Jose, CA

Plum HVAC offers comprehensive HVAC solutions for San Jose, CA, serving both residential and light-commercial properties. We address local challenges such as uneven indoor comfort, wildfire smoke and indoor air quality concerns, duct leaks, and aging equipment. Our professional assessments, precise system sizing, and code-compliant installations help prevent short cycling, reduce energy costs, and avoid costly repairs.

Our services include installation, repair, maintenance, smart thermostats and zoning, indoor air quality upgrades, and ductwork solutions. We follow a thorough process with seasonal tune-ups, guidance on incentives, and strict adherence to safety and licensing standards. Plum HVAC helps San Jose homeowners prioritize HVAC options and take timely action for reliable, efficient, and healthy home comfort.

Common HVAC issues in San Jose homes and small businesses

Uneven cooling or heating: Older duct layouts, undersized equipment, or improper zoning can leave rooms too warm or too cool during summer heat waves or chilly valley nights.
Air conditioner breakdowns during peak heat: High outdoor temperatures and heavy run times increase the risk of compressor or refrigerant failures.
Poor indoor air quality from wildfire smoke: Seasonal smoke and elevated particulate levels require filtration and ventilation upgrades to protect occupants.
Short cycling and frequent on/off cycles: Caused by oversized equipment, thermostat problems, or airflow restrictions; this increases wear and energy use.
Aging heat pumps and reversing valve issues: As heat pumps age they lose efficiency and may struggle to provide heat on colder nights.
Duct leaks and insulation gaps: Leaky ductwork decreases efficiency and comfort while introducing dust and allergens.
Thermostat and control problems: Inaccurate sensors, outdated thermostats, or improperly configured zoning reduce system performance and occupant comfort.

Services offered — installations, repairs, replacements, and IAQ

Installation and replacement: Full-service installation for furnaces, central air conditioners, heat pumps, ductless mini-splits, and complete duct systems. Services include professional equipment sizing, permit coordination, and manufacturer warranty registration.
Repair and diagnostics: Rapid troubleshooting of cooling and heating failures, refrigerant leaks, electrical faults, airflow problems, and compressor or blower issues. Repairs use industry-standard testing to restore reliable operation.
Routine maintenance and tune-ups: Seasonal maintenance plans include safety checks, refrigerant verification, coil cleaning, filter changes, airflow measurement, and performance tuning to extend equipment life and keep efficiency high.
Thermostats and zoning: Smart and programmable thermostat installation plus zoning systems that balance comfort and energy use across multiple rooms or floors.
Indoor air quality solutions: Upgrades such as high-efficiency filtration (MERV and HEPA options), UV germicidal lights, energy recovery ventilators (ERVs), and portable air cleaners to reduce particulates and contaminants—critical during wildfire smoke events.
Ductwork services: Duct sealing, repairs, cleaning, and insulation to eliminate leaks, improve airflow, and reduce energy loss.
Light-commercial HVAC: Scaled solutions for small offices, retail spaces, and multi-family units including preventative maintenance agreements tailored to business hours and usage patterns.

Typical process for a professional HVAC job in San Jose

Site assessment: A certified technician inspects the building, reviews comfort issues, measures existing ductwork, and evaluates insulation and ventilation.
Equipment sizing and specification: Using load assessment methods, the right capacity system is selected to avoid short cycling or underperformance. Proper sizing is essential for Bay Area climate variability.
Permitting and code compliance: Necessary local permits and code requirements are handled to ensure installations meet San Jose and county regulations.
Professional installation: Licensed technicians follow manufacturer procedures for secure mounting, refrigerant handling, electrical integration, and duct transitions. Installations include safety systems and thermostat setup.
Testing and commissioning: Post-installation performance testing, airflow balancing, refrigerant charge verification, and thermostat calibration confirm the system meets design expectations.
Warranty and documentation: Work is documented and warranty information is provided for both parts and labor. Records also support potential local utility rebate applications.

Maintenance plans and seasonal tune-ups

Regular maintenance reduces emergency repairs and protects warranties. Typical tune-up items:

Visual inspection of components and electrical connections.
Cleaning of coils, drain pans, and condensate lines.
Filter inspection and replacement recommendations based on MERV level and IAQ needs.
Lubrication of moving parts and belt checks where applicable.
Refrigerant charge verification and leak checks.
Airflow measurements and duct leakage assessment.
Maintenance plans can be scheduled seasonally (spring for cooling, fall for heating) and customized for properties that require more frequent checks, such as homes with indoor air quality sensitivities or light-commercial spaces with heavy usage.

Rebate, financing assistance, and local incentives

San Jose residents and businesses may qualify for state and local incentive programs that offset HVAC upgrades. Programs often cover high-efficiency heat pumps, smart thermostats, and duct sealing. Assistance typically includes:

Guidance on current utility rebates and regional incentive programs.
Documentation support for rebate applications and manufacturer rebates.
Options to discuss financing tools that spread upfront costs while capturing long-term energy savings.
Providing accurate paperwork and understanding local program timelines helps maximize available incentives while meeting San Jose energy goals.

Indoor air quality focus for San Jose

Wildfire smoke, seasonal allergens, and urban pollutants make IAQ a priority in the Santa Clara Valley. Effective local solutions include:

High-efficiency filtration sized for your system to remove fine particulates from smoke.
Dedicated whole-home air cleaners or portable HEPA units for high-exposure periods.
Ventilation strategies and ERVs to manage fresh air without introducing smoke.
UV lights and maintenance practices to reduce microbial growth in cooling coils and ducts.

Licensing, insurance, and COVID-19 safety measures

Professional HVAC work in San Jose requires appropriate licensing, liability insurance, and adherence to local code. Licensed technicians provide peace of mind that permits, inspections, and warranty registration are handled correctly. During the COVID-19 era and beyond, best practices include health screening of technicians, use of masks and gloves, vehicle sanitization, and contact-minimizing paperwork procedures to protect occupants and staff.

Why prompt, professional HVAC work matters

Timely, professional HVAC service improves comfort, reduces energy bills, and extends equipment life. In San Jose where summers can strain older systems and wildfire smoke can compromise indoor air, proactive upgrades and regular maintenance deliver measurable benefits: better temperature control, improved IAQ, lower operating costs, and fewer emergency repairs.

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testimonials

hear what our satisfied clients have to say

5.0

We found Plum HVAC in 2024 after spending more than 2 months searching and comparing estimates. The owner Sam gave us a very competitive price for a Mitsubishi mini-split and the installation went off without a hitch. Our experience was so positive that we later requested their services twice more to also install A/Cs for our 2 other rooms. Their technician, Jake, led our installations each time and we were very impressed by their professionalism and quality of work. Now 1 year in and we could not be any happier, nor have we encountered any issues with our models.

Jesse Y.

5.0

Sam of Plum HVAC, responded to our Heat Pump installation request promptly and provided a very competitive estimate after an onsite visit. He was very flexible and patient to answer and explain our questions. After we signed the contract, he and his team of 4 worked very hard to deliver and install the whole Heat Pump system on time with good quality. I am particularly impressed by their problem solving skills to overcome different connection challenges for the attic installation. Each day before they started, they covered the floors with protection blankets and cleaned after they were done for the day. They also revised the drainage and electric work per the city inspection guidance. Sam and his team were professional and honest so we highly recommend Plum HVAC to any customers who need HVAC work done for their houses.

Chunshi C.

5.0

We needed to install a mini-split in a backyard unit. Sam and his team helped with this, and they did a fantastic job. Sam visited our place and clearly explained to me what needed to be done, and offered a great price. He scheduled the job for a few days later, and his team performed the job with extraordinary quality. Later, I noticed a minor issue and reached out to them. Sam helped me to fix the issue on a second visit by his team later in the week, providing top-notch customer service. I will work with them in the future for my HVAC jobs, and highly recommend them given their excellent work quality and customer service.

Majid J.

5.0

I reached out to 4 companies for mini split quotes; Plum HVAC pricing came in the lowest. Beyond that, Sam was very knowledgeable and kind during the in home consultation. He offered a quote in person, & stuck by it. They removed our old furnace, and installed a two head mini split in our two story townhouse. The work as you can see is very clean! The guys who installed it were very fun & professional. Sam & his team were communicative the whole way through including the permitting process. They took roughly one full day for install, which was very fast! Including removal & disposal of our old furnace. Natalie was very helpful throughout the Bayren Rebate process & always available for any questions! This system has changed our lives, wish we would have gotten it done sooner! It’s way better than we could have imagined.

Bobby R.

5.0

Plum HVAC exceeded my expectations in every way. Sam and his installer team were not only professional but also incredibly responsible throughout the entire process. They provided top-notch service at a very reasonable price, which is hard to come by these days. I highly recommend Plum HVAC to anyone looking for quality HVAC services. You won't be disappointed!

A Chui

5.0

I recently engaged Plum HVAC to install two mini-split units at my residence, and I'm thrilled with the outcome.Throughout the entire process, from the initial consultation to the project's completion, Plum HVAC showcased professionalism and expertise. The technician, Sam, arrived promptly and conducted a comprehensive assessment of my HVAC system. Sam took the time to thoroughly explain the technicians' tasks, the estimated duration of the project, and provided transparent pricing options.

Romero J.

5.0

Wonderful experience with Plum HVAC on a heat pump installation! I checked several companies, compared their recommendations, timelines, reputations and prices.Sam, the owner, was very professional and has almost 2 decades of experience in HVAC. When I asked dumb questions, he answered most graciously. And when I noted that some companies we queried said we could get away WITHOUT replacing our original ductwork from 1965, he gave us his honest opinion why that wasn't a good idea. (Hubby remembered later that people who worked in our attic adding insulation told us there were lots of duct leaks.)

Marlene S.

5.0

I called 8 different HVAC companies for quotes for a heat pump heating/ac system because I want to save money by switching from a forced air gas furnace to an electric heat pump system which will give me both heating and air conditioning. In addition my old furnace (circa 1991) was way oversized for my home and the air coming out too noisy. The New heat pump system is quieter and more efficient. Back to the quotes for the system, all the other 7 companies sent a salesperson/advisor to give the quote. Sam, the owner of Plum HVAC came our to give the quote. He was quick with his quote and was very knowledgeable. He didn't try to upsell me on anything and have the lowest quote of them all. His price was 60% less than the highest quote and 15% lower than the next second lowest quote.

Michael C.

5.0

Plum HVAC is an extremely professional, knowledgeable, and an established company to hire. I highly recommend Plum HVAC! Sam and his crew did a wonderful job. Sam worked with my schedule and his crew had completed the job with ease.

Blake

5.0

Sam was one of the most professional business owners I had the chance to meet over the past few years and I'm so happy I trusted him to install our new A/C unit.- He showed up on time- He was transparent (and reasonable) regarding pricing- He offered 2-3 options- His crew did a very clean/thorough jobWhat I loved the most though, was the fact he was very easy to communicate with. I would definitely use him again and recommend him to our neighbors/friends.

Bruno L.

5.0

We recently had a complicated Bryant Evolution dual fuel system with variable speed and zoning installed in our home by Plum HVAC, and we are very pleased! The team also changed the entire crawl space ducting, ensuring a comprehensive upgrade. The price was fair, and the team was always on time and easy to contact. Sam Mousavi, the head of the team, paid great attention to detail and demonstrated a strong understanding of systems. His expertise in HVAC systems and his friendly character made us feel comfortable throughout the process. We highly recommend Plum HVAC for their professionalism and excellent service.

Amirali B.

5.0

I cannot say enough about Plum HVAC, who replaced my aging heater furnace, and in particular Sam. Sam was very highly recommended by my sister, who replaced her furnace and added air conditioning.First, they gave me a good deal for a 2-stage, at the same cost as the lowest bid for a 1-stage. The other bids were dancing around some gas line work made by previous owners.

Kumar S.

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