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Mini Split Service in Burlingame, CA

Mini split service in Burlingame, CA offering installation, repairs, and maintenance for coastal climate homes. Schedule a service call today.

Plum HVAC provides exceptional mini-split service in Burlingame, CA, covering installation, repairs, and preventative maintenance for coastal homes and small businesses without traditional ductwork. We expertly address common issues such as refrigerant leaks, reduced airflow, icing, and drain problems, always with a focus on proper sizing, managing salt exposure, and ensuring year-round comfort. Every Plum HVAC project includes a thorough site assessment, detailed diagnostics, clear written estimates, and professional commissioning. Our preventative maintenance plans, clear warranties, and strict adherence to codes help extend your system's life, reduce energy use, and maintain reliable performance even in the challenging Bay Area conditions.

Mini Split Service in Burlingame, CA

Mini split systems are an efficient, flexible way to heat and cool Burlingame homes and small businesses. Because many Burlingame properties have limited or no ductwork, mini splits—especially multi-zone systems—deliver targeted comfort and lower energy waste. Local factors such as coastal humidity, occasional Bay Area heat waves, and salt air exposure influence system wear and performance, so timely installation, repairs, and preventative maintenance are essential for reliable year-round comfort.

Common mini split issues in Burlingame, CA

  • Refrigerant leaks: Corrosion from coastal air or vibration can cause slow refrigerant loss, which reduces cooling capacity and increases runtime.
  • Reduced airflow or noisy indoor units: Clogged filters, dirty coils, or failing fan motors are common in homes that see seasonal fog and humidity.
  • Short cycling or frequent compressor starts: Electrical issues, improper sizing, or thermostat control faults lead to inefficiency and premature compressor wear.
  • Ice on evaporator coils: Restricted airflow or low refrigerant causes icing and reduced performance during warm spells.
  • Drain line clogs and water leaks: High humidity and infrequent maintenance can lead to mold, algae, and blocked condensate drains.
  • Sensor or control failures: Wall controllers, remotes, or communication modules can fail or become erratic after electrical surges.

Mini split services offered

This page covers the full range of mini split services tailored for Burlingame properties:

  • Installation and Replacement
  • System sizing and zone planning for single- and multi-zone installations.
  • Site assessment for outdoor unit placement to minimize salt exposure and ensure proper clearance.
  • Line set routing, electrical connections, and wall/ceiling indoor unit mounting.
  • Commissioning and performance verification with airflow, temperature, and refrigerant checks.
  • Permit consultation and coordination with local building codes when required.
  • Repairs and Emergency Service
  • Diagnostics and same-day diagnosis options for urgent comfort failures.
  • Refrigerant leak detection and safe recharge following EPA regulations.
  • Compressor, fan motor, PCB, inverter, and sensor repairs or replacements.
  • Condensate drain unclogging and overflow protection.
  • Emergency response for system failures during heat events or cold nights.
  • Preventative Maintenance
  • Seasonal tune-ups including filter cleaning/replacement, coil cleaning, condensate line clearing, and electrical tightening.
  • Performance testing to catch refrigerant loss or efficiency drops early.
  • Smart thermostat and control checks for zone balancing.
  • Maintenance agreements that define visit frequency, checklists, and priority response options.

Diagnostic and service process

  1. Initial assessment: Visual inspection of indoor and outdoor units, filter condition, drain line status, and control operation. For replacements, a full load and layout analysis determines the correct capacity and zones.
  2. Metered diagnostics: Technicians measure system pressures, temperatures, electrical draw, and airflow to pinpoint issues without guesswork.
  3. Written estimate: A clear scope of work lists parts, labor, and expected outcomes. For replacements, the proposal includes recommended models and energy performance expectations.
  4. Repair or install: Work is performed to industry standards, with attention to refrigerant recovery, brazing best practices, electrical safety, and proper mounting to reduce vibration and noise.
  5. Commissioning and testing: Post-service tests confirm temperatures, setpoint responsiveness, and leak-free refrigerant circuits. Technicians document baseline performance.
  6. Follow-up recommendations: Technicians provide actionable guidance for preventing repeat issues, such as filter schedules and shielding outdoor units from prevailing winds and salt spray.

Parts, labor policies, and warranty coverage

  • Parts: Replaced components can be OEM or equivalent aftermarket parts depending on availability and warranty implications. High-wear items typically stocked include filters, capacitors, fan motors, thermostats, and common control modules.
  • Labor: Labor coverage varies by provider, but a common practice is to offer a limited labor warranty on specific repairs (for example, 30 to 365 days) to protect against premature failure related to the service performed.
  • Manufacturer warranties: New mini split systems usually carry manufacturer warranties that cover compressors and major components for several years; some components like electronics or factory-installed parts may have shorter terms.
  • Warranty interactions: Installer-provided labor warranties are separate from manufacturer parts warranties. Proper documentation and adherence to manufacturer installation requirements are important to preserve long-term coverage.
  • Refrigerant and environmental compliance: Refrigerant handling follows federal and state regulations. Any refrigerant replacement or retrofitting is documented and reported as required in California.
  • Permits and code compliance: Replacements or major installations may require permits and inspections in Burlingame. Proper permitting protects warranty rights and ensures code compliance.

Typical deliverables and before/after examples

Deliverables from a professional mini split service typically include:

  • Detailed diagnostic report with measured values and photos when applicable.
  • Itemized estimate or invoice showing parts, labor, and any testing performed.
  • Baseline performance readings after service (temperatures, pressures, airflow).
  • Maintenance checklist and recommended schedule.

Before/After examples (anonymized):

  • Before: A 2-bedroom Burlingame townhouse had uneven cooling and long run times due to an undersized single-head system and low refrigerant. After: A two-zone multi-head mini split was installed with properly sized heads and line sets. Post-commissioning showed faster recovery times, balanced temperatures, and reduced runtime.
  • Before: An older condo experienced water stains beneath the indoor unit caused by a clogged condensate line and algae buildup. After: Drain line was cleaned, a condensate trap and overflow sensor were installed, and seasonal maintenance deferred further leaks.

Benefits of timely mini split service in Burlingame and maintenance tips

  • Prolonged equipment life: Regular maintenance prevents corrosion-related failures and extends compressor life, especially important in coastal microclimates.
  • Energy savings and comfort: Proper refrigerant charge, clean coils, and balanced zones maximize efficiency during warm spells and cool nights.
  • Improved indoor air quality: Clean filters and drain lines reduce mold and pollen recirculation in humid periods.
  • Reduced risk of emergency failures: Preventative inspections catch electrical and refrigerant issues before they escalate during peak demand.Maintenance tips for Burlingame homes:
  • Replace or clean filters every 1 to 3 months depending on use and indoor air quality.
  • Keep outdoor units clear of foliage, salt spray, and debris; a simple cover during rare storms can help but should not restrict airflow.
  • Schedule professional maintenance at least once a year; for multi-zone or heavy-use systems, consider twice-yearly checkups.
  • Monitor for early warning signs such as reduced airflow, strange noises, water stains, or uneven temperatures.

Mini split service that accounts for Burlingame climate, exposure to coastal conditions, and the common building types in the area delivers reliable comfort, improved efficiency, and predictable operating costs. Proper installation, timely repairs, and seasonal maintenance together protect system performance and homeowner peace of mind.

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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