Replacing a heat pump in Daly City, CA with Plum HVAC involves more than just swapping units. Our process begins with a thorough evaluation, load calculations, and model recommendations designed to resist coastal conditions. It includes permits, inspections, ductwork adjustments, and careful electrical upgrades, followed by installation, commissioning, and warranty coordination. Expect a clear discussion of efficiency gains, potential rebates, and a detailed maintenance plan to extend life. The result is improved year-round comfort, lower energy costs, and ongoing protection against salt-related corrosion.

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Heat Pump Replacement in Daly City, CA

Upgrading an old or failing heat pump is one of the best ways to improve year-round comfort, reduce energy bills, and avoid unexpected breakdowns in Daly City, CA homes. A full heat pump replacement goes beyond swapping equipment: it starts with a careful evaluation, includes load calculations and system selection, and finishes with professional commissioning, inspections, and warranty coordination. This page explains what to expect during a heat pump replacement in Daly City, common local issues that influence system choice, the typical replacement process, and ongoing maintenance to protect your investment.

Why replace your heat pump now

Reduced efficiency and rising energy bills as equipment ages
Frequent repairs or refrigerant leaks that indicate end of useful life
Inconsistent heating or cooling across rooms
Need to upgrade to a lower-GWP refrigerant or meet current energy codes
Desire to take advantage of higher-efficiency models and local or state incentives

In Daly City, coastal fog, salty air, and older housing stock often accelerate corrosion and reduce system performance. Replacing a failing heat pump now can restore reliable comfort and prevent more costly damage to ductwork and indoor systems.

Common heat pump issues in Daly City homes

Corroded outdoor coils and fittings due to salt-laden air near the coast
Undersized or oversized systems because older installations lacked modern load calculations
Poor duct sealing in older homes causing uneven temperatures
Inadequate electrical service or outdated panels that cannot support newer, efficient units
Refrigerant leaks and systems using phased-out refrigerants
Reduced capacity after years of cycling or compressor wear

Heat pump replacement process in Daly City — step by step

System evaluation and diagnostics

Inspect existing equipment, ductwork, and electrical service.
Identify signs of corrosion, refrigerant loss, airflow restrictions, and safety issues.
Provide a clear assessment of whether replacement is the best long-term option.

Load calculations and system sizing

Perform Manual J load calculations specific to your Daly City home to determine correct heating and cooling capacity.
Factor in local climate influences like mild winters and coastal breezes so the system matches real-world needs rather than rule-of-thumb sizing.

Energy-efficient model recommendations

Compare SEER, HSPF, and integrated features such as variable-speed compressors and smart thermostat compatibility.
Recommend models designed to resist coastal corrosion where applicable.
Discuss long-term operating savings and warranty tiers.

Permits, HERS, and inspection coordination

Prepare permit documentation and coordinate required HERS or other energy inspections.
Ensure the installation meets local Daly City and county code requirements and that inspection timelines are integrated into the project schedule.

Removal and disposal of old equipment

Recover refrigerant in compliance with EPA rules.
Remove and recycle or dispose of equipment and components responsibly.
Inspect and recommend repair or replacement of any damaged ductwork uncovered during removal.

Necessary ductwork and electrical upgrades

Repair or reconfigure ducts for balanced airflow, adding sealing and insulation as needed.
Upgrade electrical service, disconnects, or breakers if required to support a modern heat pump safely.

Installation and commissioning

Install the outdoor and indoor units, refrigerant lines, and controls.
Evacuate and charge refrigerant to manufacturer specifications.
Commission the system with performance tests, airflow measurements, and thermostat calibration.

Warranty, documentation, and HERS/inspection sign-off

Provide manufacturer warranty registration and documentation.
Supply commissioning reports to support HERS or municipal inspections.
Explain warranty coverage and recommended maintenance schedule.

Rebate and financing assistance

Identify local and state incentives, utility rebates, and financing programs that may apply.
Assist with paperwork and documentation required to claim rebates or incentives.

Timelines and what to expect on installation day

Most full heat pump replacements are completed within a short multi-day window from initial evaluation to final commissioning. Typical projects include site assessment and system selection, permit processing, installation, and inspection scheduling. Weather and permit turnaround times can influence the schedule. On installation days expect the crew to protect floors, remove old equipment, perform required electrical and ductwork work, and complete system start-up and basic user orientation.

Factors that influence cost and project scope

Size and complexity of the home and required load calculations
Extent of ductwork repair or replacement and accessibility
Need for electrical panel upgrades or new circuits
Corrosion protection or coastal-rated equipment selection
Required permits, HERS inspections, and local code compliance
Choice of system efficiency, variable-speed components, and smart controls

While cost varies with these factors, replacing a heat pump in Daly City often provides quick operational benefits because mild coastal climate allows high-efficiency systems to deliver strong energy savings year-round.

Warranty coverage and long-term protection

New heat pumps come with manufacturer warranties for compressors and parts. In addition, workmanship warranties can cover installation-specific issues. Keep documentation for both and register equipment promptly. Many warranties require regular professional maintenance to remain valid, so scheduled tune-ups are important.

Maintenance advice to maximize lifespan and performance

Change or clean air filters regularly and use high-quality filters rated for your system.
Schedule annual professional maintenance that includes coil cleaning, refrigerant checks, and airflow testing.
Seal and insulate ducts where accessible to prevent energy loss.
Protect outdoor equipment from debris and consider corrosion-resistant coatings if you live very close to the ocean.
Upgrade thermostats to programmable or smart models for optimized run times and comfort.

Why timely replacement matters in Daly City

Replacing a failing heat pump before major failures occur reduces the risk of indoor comfort issues, lowers long-term energy costs, and ensures compliance with changing refrigerant and efficiency regulations. For Daly City homeowners, addressing corrosion risks, ensuring proper sizing for mild coastal conditions, and coordinating inspections and rebates can deliver a more reliable, efficient system that fits local needs.

A full heat pump replacement done with proper load calculations, code-compliant installation, and coordinated inspections provides dependable comfort, predictable performance, and a clear plan for long-term maintenance and warranty protection in Daly City homes.

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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