Plum HVAC provides full-service residential and light commercial HVAC solutions in Mountain View, CA, focusing on reliable comfort, indoor air quality, and long-term efficiency. Our team offers expert installation, replacement, and upgrades—from central air and heat pumps to ductless mini-splits, smart thermostats, and zoning. Our process emphasizes accurate sizing, code compliance, and system verification through skilled diagnostics, permit coordination, and thorough commissioning. We also offer ongoing maintenance, warranties, financing, and local incentives to support dependable performance and energy savings for Mountain View homes and small businesses.

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(650) 605 – 5986

HVAC Company in Mountain View, CA

Plum HVAC offers full-service residential and light commercial HVAC solutions in Mountain View, CA, focused on reliable comfort, indoor air quality, and long-term efficiency. Whether you need a new air conditioner, heat pump conversion, furnace service, ductwork replacement, ductless mini-split installation, thermostat and zoning upgrades, or whole-home air-quality equipment, our approach centers on accurate sizing, code compliance, and performance verification so systems operate efficiently in Bay Area conditions.

Why local HVAC expertise matters in Mountain View, CA

Mountain View experiences mild, wet winters and warm, dry summers with frequent thermal swings between day and night. Many homes are older single-family properties or smaller multiunit structures where space constraints and legacy ductwork complicate replacement projects. Local HVAC work requires knowledge of regional permitting, Title 24 efficiency expectations, and the incentives available from state and utility programs. Choosing a Mountain View-focused HVAC company ensures the system you get is suited to local climate demands, neighborhood building types, and California energy regulations.

Common HVAC services and issues we address

Installation and replacement of central air conditioners and high-efficiency heat pumps for year-round comfort and electrification goals.
Furnace repair and replacement for homes with mixed heating systems or where hybrid solutions are appropriate.
Ductless mini-split systems for room additions, older homes without ductwork, or targeted zoned comfort.
Ductwork design, sealing, and replacement to correct leaks, improve airflow, and reduce energy loss.
Smart thermostats and zoning system installation to improve comfort control and lower operating costs.
Indoor air-quality equipment, including filtration upgrades, whole-home ventilation, and humidity control.
Emergency and scheduled repairs covering compressor failures, refrigerant issues, blower motor problems, and thermostat faults.

Diagnostic process and service workflow

We follow a clear, code-conscious process so installations and repairs deliver predictable performance:

Consultation and needs assessment that reviews your comfort goals, current system age, and any air-quality concerns. For replacements we discuss options and expected operating costs.
Load and sizing assessment using Manual J and Manual D calculations to determine correct equipment capacity and duct sizing. Proper load calculation prevents oversized systems, short cycling, and inefficient operation.
Permit coordination and local code compliance to ensure work meets Mountain View and Santa Clara County requirements, as well as California energy standards. We coordinate with building departments and HERS raters when required.
Professional installation performed by licensed technicians following manufacturer specifications. Installations include refrigerant management, proper piping and electrical work, secure mounting, and duct connections.
System start-up, commissioning, and testing. Commissioning verifies airflow, refrigerant charge, thermostat calibration, and control sequences. We document settings and testing results and coordinate HERS verification where needed for compliance or incentives.

Typical repairs and how we fix them

Poor cooling performance: We check refrigerant levels, compressor health, airflow, and thermostat calibration. Repairs can range from refrigerant leak repair and recharge to compressor replacement and duct sealing.
Inconsistent heating or short cycling: Diagnosis looks at thermostat placement, control settings, electrical supply, and sizing issues. Solutions include control adjustments, component replacement, or system retrofits.
Excessive energy use: We identify causes such as failing motors, dirty coils, duct leakage, or outdated controls and recommend efficiency upgrades like variable-speed blowers, heat pumps, or smart thermostats.
Indoor air quality problems: After testing for particulate levels and humidity, solutions include upgraded filtration, UV lights, ERV/HRV ventilation, and targeted humidity control.

Maintenance and tune-up plans

Regular maintenance extends equipment life and maintains efficiency. Typical tune-ups include:

Seasonal inspection of electrical connections, safety controls, and system settings.
Cleaning or replacing filters, coils, and condensate drains to prevent failures and indoor air issues.
Lubrication of moving parts, belt and pulley checks, and blower motor testing.
Refrigerant checks and airflow balancing.We offer tiered maintenance plans that include scheduled visits, priority service windows, and documented service reports. Consistent maintenance reduces emergency repairs and helps preserve manufacturer warranties.

Warranties, licensing, and safety practices

Plum HVAC is licensed for contracting work in California, CSLB #1087978. We adhere to manufacturer warranty requirements by performing certified installations and following recommended maintenance schedules. For major projects we document work and provide the paperwork needed for warranty claims and HERS compliance.

During public health concerns such as COVID-19, technicians follow enhanced safety precautions including use of personal protective equipment, minimized in-home time through pre-visit planning, and contactless paperwork practices to reduce exposure risks. Safety protocols are updated to reflect current public health guidance while maintaining quality workmanship.

Rebates, financing, and estimate options

Many customers benefit from state and utility incentive programs and local rebates that lower upfront costs for high-efficiency equipment and electrification projects. Plum HVAC provides guidance on typical incentive eligibility, helps prepare documentation for rebate applications, and coordinates with HERS raters when verification is required.

Financing assistance is available to spread project costs over time for eligible systems and improvements. Pricing approaches include detailed written estimates that break down equipment, labor, permit, and testing costs so you can compare options and plan upgrades in a way that aligns with long-term energy savings.

Long-term benefits and maintenance advice

Investing in the right HVAC system for Mountain View homes improves year-round comfort, reduces energy bills, and enhances indoor air quality. Key homeowner tips:

Replace or clean filters monthly during heavy-use seasons.
Keep outdoor units clear of debris and vegetation to maintain airflow.
Consider upgrading to a smart thermostat and zoning to cut wasted heating and cooling.
Schedule annual tune-ups for both heating and cooling seasons to catch small issues before they become major repairs.

Plum HVAC frames each project around accurate sizing, code compliance, and documented performance verification so systems meet comfort expectations and regulatory requirements in Mountain View, CA.

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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