Plum HVAC's air conditioning replacement in Burlingame, CA delivers improved comfort, energy efficiency, and reduced emergency repairs through a properly sized, fully matched system. We outline when replacement is recommended, our step-by-step installation process, accurate load calculations, and options for energy-efficient models. Plum HVAC covers ductwork evaluation, permitting, warranties, and financing considerations, plus long-term benefits like lower bills and enhanced indoor air quality, ensuring homeowners understand the value of a well-planned upgrade tailored to Burlingame's coastal climate.

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Air Conditioning Replacement in Burlingame, CA

Replacing an aging or failing air conditioning system is one of the most effective ways to improve comfort, reduce monthly energy bills, and avoid repeated emergency repairs. For Burlingame, CA homes—where coastal fog, occasional inland heat waves, and varied housing stock (older bungalows to modern condos) create unique cooling needs—a well-planned AC replacement ensures year-round comfort while meeting California efficiency expectations.

When a full air conditioning replacement is recommended

Consider replacement when one or more of the following are true:

System age is 10–15+ years and reliability is declining
Frequent repairs or rising repair costs exceed 50% of a new system estimate
Uneven cooling, poor humidity control, or persistent hot spots
Significant efficiency drop reflected in steadily increasing electric bills
Compressor or major components have failed (costly to replace)
System uses phased-out refrigerant (R22) or noncompliant equipment
Home upgrades (insulation, new windows, added living space) change load needs

In Burlingame, where coastal mornings can give way to warm afternoons, replacing an undersized or inefficient unit often results in noticeably better comfort without running the system constantly.

Replacement process: what to expect

A proper AC replacement follows a clear, documented process focused on sizing, efficiency, and code compliance.

Home assessment

Evaluate current system, duct layout, insulation, attic ventilation, and house orientation.
Identify moisture or indoor air quality issues that affect cooling performance.

Load calculations and system selection

Perform a Manual J load calculation (or equivalent) to size the system for your actual home, not rule-of-thumb estimates.
Recommend equipment capacity, airflow targets, and distribution improvements.

Recommendations for energy-efficient models

Compare matched outdoor compressors and indoor coils or air handlers.
Discuss SEER/HSPF ratings, variable-speed options, and heat pump alternatives where applicable.

Ductwork evaluation and repair

Inspect for leaks, poor insulation, improper sizing, or restricted airflow.
Recommend sealing, duct insulation, or partial reconfiguration if needed.

Permitting and code compliance

Prepare required permit applications and documentation, including efficiency certificates and equipment specs.
Ensure compliance with California efficiency standards and local building department requirements in San Mateo County and Burlingame.

Installation and startup

Remove old equipment, install new matched system, test refrigerant charge, airflow, and controls.
Perform startup checks, refrigerant leak test, and thermostat calibration.

Post-installation review and documentation

Provide equipment manuals, warranty information, and a summary of work performed and system settings.

Load calculations and why correct sizing matters

Correct sizing is critical. Oversized systems cycle on and off, causing humidity problems, higher wear, and inefficient performance. Undersized systems run continuously and struggle on hot days. A Manual J-style calculation accounts for:

Square footage and window orientation
Insulation levels and thermal properties
Occupant patterns and internal heat sources
Local climate factors—Burlingame’s coastal morning fog and midday warming

Proper sizing leads to better humidity control, quieter operation, and longer equipment life.

Comparing upgrade options and efficiency ratings

Common upgrade considerations for Burlingame homes:

SEER ratings: Higher SEER (16–20+) yields lower energy use, which is beneficial in California’s energy-conscious market. Newer heat pump systems with high SEER and HSPF deliver efficient year-round conditioning.
Variable-speed compressors and ECM blowers: Offer better comfort, quieter operation, and improved dehumidification—useful for the Bay Area’s variable conditions.
Heat pump vs. traditional split system: Heat pumps now offer efficient cooling and heating in milder climates, reducing the need for separate heating equipment in many Burlingame homes.
Matched systems: Always pair condensing units with the correct indoor coil or air handler for warranty and performance.

A balanced decision weighs upfront cost, expected energy savings, comfort improvements, and local climate needs.

Ductwork, permitting, and local considerations

Many Burlingame homes have older duct systems, compact attics, or tight crawlspaces. Common issues on replacement projects include:

Leaky ducts that undermine efficiency by 10–30%
Undersized or improperly routed ducts causing hot and cold rooms
Lack of return pathways that reduce airflow

Permits are typically required for equipment replacement and any duct modifications. Installations must meet California’s energy efficiency standards and local building codes administered by San Mateo County and the City of Burlingame. Proper permitting ensures inspections, compliance, and access to potential rebates.

Financing and rebate assistance

Replacing an AC can be paired with financing options and utility or state incentives. Typical assistance topics to review:

Local utility rebates and incentive programs for high-efficiency systems or heat pumps
State-level efficiency incentives or tax credits when available
Financing options that spread costs over time to match energy savings

When considering replacement, document rebate eligibility, required equipment efficiency thresholds, and any required pre- or post-install inspections.

Installation timelines and warranties

Typical timelines (may vary by project scope):

Home assessment and proposal: 1–2 appointments and up to a week for detailed sizing and options
Permitting: Variable, often days to a few weeks depending on workload
Physical installation: 1–3 days for a standard split system; longer if ductwork or electrical upgrades are needed
Final inspection and commissioning: Same day or shortly after installation

Warranty considerations:

Manufacturer warranty for compressor and major components (commonly 5–10 years or more on compressors for high-efficiency units)
Limited warranty on coils, controls, and components
Workmanship warranty for installation quality (typically 1 year but varies)
Maintain documentation for warranty registration and future service

Long-term cost and comfort benefits

A correctly specified and installed replacement delivers measurable advantages:

Lower energy bills through higher SEER/HSPF and sealed ductwork
Improved comfort: consistent temperatures, better humidity control, and quieter operation
Reduced repair risk and increased system life expectancy
Better indoor air quality with modern filtration and ventilations options
Higher home value and appeal to buyers focused on efficiency in Burlingame’s competitive housing market

Regular preventive maintenance after replacement preserves efficiency and warranty eligibility.

Final notes on replacing AC in Burlingame, CA

Air conditioning replacement in Burlingame should be approached as a system-level upgrade: right-sized equipment, matched components, proper ductwork, and permitting ensure the best performance and longest lifespan. Given local climate nuances—coastal influence offset by occasional inland heat—selecting the right efficiency, airflow and controls will yield the greatest comfort and savings over the long term.

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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