Plum HVAC delivers comprehensive air conditioning services in Mountain View, CA, built around the needs of Bay Area homes and businesses. Our team provides proactive maintenance, accurate system sizing, professional installations, fast diagnostics, and reliable repairs to keep your cooling system running efficiently and comfortably. We handle everything from seasonal tune-ups and smart thermostat integration to ductwork evaluations, load calculations, warranty support, and emergency service. With a strong focus on energy efficiency and guidance on local permits and available rebates, Plum HVAC ensures your AC system operates reliably, cost-effectively, and in full compliance year-round.

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(650) 605 – 5986

Air Conditioning Services in Mountain View, CA

Reliable, efficient air conditioning is essential for homes and businesses in Mountain View, CA, where warm inland summer days, heat waves, and valley winds are common. Our Air Conditioning Services cover seasonal tune-ups, full system replacement, diagnostics and repairs, thermostat integration, warranty support, and emergency response — all tailored to local climate patterns, building types, and Bay Area energy-efficiency incentives.

Why Local AC Services Matter in Mountain View

Mountain View’s microclimates and rapid temperature swings can challenge older homes and mixed-use buildings with undersized or poorly maintained systems. Newer, tech-driven spaces demand precise temperature control. Proper, locally informed AC service:

Prevents premature equipment failure
Reduces energy bills
Maintains stable indoor environments during peak demand

Full Range of Services

Seasonal Maintenance and Tune-Ups

Filter changes, coil cleaning, condensate drain inspection, lubrication of moving parts
Refrigerant level checks and safety control testing
Airflow measurement
Pre-summer and post-winter inspections to prevent heat-of-day breakdowns

New System Consultation and Professional Installation

Load calculations (unit sizing), SEER and efficiency considerations
Ductwork evaluation and balancing
Zoning and mini-split options
System selection advice for longevity and low operating cost
Permit coordination and rebate assistance

Diagnostics and Repairs

Refrigerant leak detection and recharge
Compressor troubleshooting, condenser and evaporator coil service
Fan and motor repair, capacitor and relay replacement
Duct leakage detection and repair, evaporator coil cleaning
Condensate pump and drain repairs

Thermostat Integration

Smart thermostat configuration for energy savings and multi-zone management
Compatibility checks with heat pumps and variable-speed systems

Warranty Support and Documentation

Manufacturer warranty guidance
Maintenance and repair records to preserve coverage
Coordination with warranty providers

Emergency Response Procedures

Rapid-diagnosis protocols for same-day critical failures
Temporary cooling solutions while parts are ordered
Prioritized service for high-risk environments (server rooms, medical equipment areas)

Diagnostics and Repair Workflow

Initial assessment – Review symptoms, recent changes, system history
Visual inspection – Cabinet, wiring, condenser/evaporator components, duct access points
Performance checks – Temperature split, airflow measurements, runtime analysis
Electrical testing – Voltage, currents, capacitors, relays
Refrigerant evaluation – Pressure testing, leak detection, safe recovery if needed
Functional test – Verify repairs under load, confirm performance improvement
Reporting – Clear explanation of findings and recommendations

New Installations and Efficiency Considerations

Correct sizing is critical to prevent poor cycling and high operating costs
Load calculations (Manual J) and duct evaluation (Manual D) ensure proper selection
Equipment recommendations consider SEER and EER ratings

Efficiency Upgrades:

High-SEER air conditioners or modern heat pump systems
Zoned systems or ductless mini-splits
Variable-speed compressors and ECM blower motors
Proper insulation and duct sealing

Permitting and Rebates:

City permits often required
Eligibility for regional utility rebates or incentives
Assistance with permit submission and rebate documentation

Warranty Management and Emergency Readiness

Routine maintenance preserves manufacturer warranties
Documented visits and repair records support claims
Emergency response prioritizes rapid diagnostics and temporary cooling solutions

Practical Tips for Maintaining Optimal Cooling

Replace or clean filters monthly during heavy use
Schedule professional tune-ups at least annually
Keep outdoor condenser clear of debris and vegetation
Use programmable/smart thermostats to reduce runtime
Seal and insulate ducts, especially in attics/crawl spaces
Shade exterior units where possible
Check condensate drains seasonally
Upgrade systems over 10–15 years old or with frequent repairs

Bottom Line Benefits

Timely, locally focused AC service in Mountain View:

Reduces the risk of breakdowns during peak heat
Lowers utility bills through improved efficiency
Extends equipment life
Ensures compliance with permit and warranty requirements

Investing in professional AC maintenance, repair, and correctly sized installations preserves comfort, productivity, and equipment reliability while avoiding costly emergencies.

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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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