For heating installation in Hillsborough, CA, we guide homeowners through selecting the ideal system, ensuring precise sizing, and delivering a meticulous, code-compliant installation. Our process kicks off with a pre-installation consultation and a thorough load and duct analysis, all designed to guarantee efficient performance tailored to Hillsborough's unique coastal climate. We cover furnaces, heat pumps, ductless solutions, and hybrids, always emphasizing quiet operation, significant energy savings, and excellent indoor air quality. Our professional installation steps include managing all permits, making necessary ductwork adjustments, connecting electrical and gas lines, and providing thorough testing, commissioning, and comprehensive homeowner education.

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Heating Installation in Hillsborough, CA

An efficient heating system keeps your Hillsborough home comfortable through cool, foggy nights while reducing energy waste and long-term costs. Whether you are replacing an aging furnace, switching from gas to electric heat pumps, or installing a new system in a remodeled home, a proper heating installation addresses humidity, high ceilings, and the unique construction of many Hillsborough properties. This page explains the full installation process, common scenarios we encounter in Hillsborough, and the technical and practical steps that ensure a reliable, efficient outcome.

Why a professional heating installation matters in Hillsborough homes

Hillsborough’s Mediterranean climate means mild winters but frequent cool mornings and evenings, especially when the marine layer moves in. Older homes often have original ductwork or nonstandard layouts, and many homeowners prioritize quiet, efficient systems that maintain comfort without driving energy bills up. A professional installation:

Ensures correct equipment sizing for your home and local conditions
Prevents issues tied to undersized airflow, improper venting, or inefficient operation
Complies with California energy codes and utility requirements
Preserves indoor air quality and reduces excess humidity in coastal fog conditions

Common heating installation needs in Hillsborough

Homeowners typically pursue one of the following:

Replacement of an old furnace due to age, rising repair costs, or reliability concerns
Conversion from a gas furnace to an all-electric heat pump system for efficiency and electrification
New installations during major remodels or additions requiring fresh ductwork or zoning
Ductless mini-split installation in rooms without ducts or for supplemental heating
Hybrid systems combining a heat pump with a high-efficiency furnace for cold snaps

Pre-install consultation and home assessment

A clear, thorough start is essential. The pre-install consultation includes:

Review of your comfort goals, budget, and any existing system problems
Visual inspection of mechanical rooms, attic, crawlspace, and outdoor mechanical locations
Measurement of home layout, ceiling heights, insulation levels, window orientations, and occupancy patterns
Discussion of preferred equipment types: high-efficiency gas furnaces, air-source heat pumps, or ductless systems

This visit informs the next step: a detailed load and duct analysis.

Load calculation and ductwork evaluation

Accurate sizing prevents short cycling, insufficient heat, and excessive energy use.

Manual J heat load calculation: determines the precise heating capacity your home requires, accounting for Hillsborough’s climate influences, insulation, and home orientation
Manual D duct design: evaluates whether existing ducts can deliver required airflow or if resizing, sealing, or replacement is needed
Duct leakage testing and static pressure checks to identify performance losses and determine sealing or insulation needs

For many older Hillsborough homes, duct sealing and insulation in unconditioned spaces can reduce heating needs significantly and improve comfort.

Equipment selection: furnaces, heat pumps, and alternatives

Equipment choice depends on your goals:

High-efficiency gas furnaces: best for homeowners retaining gas for heating; modern models deliver improved AFUE and quieter operation
Air-source heat pumps: excellent for Hillsborough’s mild winters; they provide both heating and cooling with high seasonal efficiency and potential rebates
Ductless mini-splits: ideal for rooms without ductwork, additions, or historic homes where invasive duct runs are undesirable
Hybrid systems: combine heat pumps with furnaces to optimize efficiency and performance during colder periods

Selection considers system capacity, SEER/HSPF or AFUE ratings, indoor unit types, and compatibility with smart thermostats and zoning.

Professional installation steps

A controlled, code-compliant installation reduces callbacks and maximizes system life:

Obtain necessary permits and ensure compliance with California Title 24 and local Hillsborough building requirements.
Prepare the installation area: remove old equipment, protect flooring and landscaping, and stage new components.
Install indoor and outdoor units, mount and route refrigerant and condensate lines for heat pumps, or venting for gas furnaces.
Upgrade or modify ductwork as determined by the duct evaluation: sealing, insulating, or resizing as needed.
Connect electrical, gas, or plumbing services per code and manufacturer instructions.
Perform safety checks including gas leak tests, combustion analysis for gas systems, and proper venting verification.

Installations typically take one to several days depending on system complexity, ductwork work, and permitting.

Testing, commissioning, and performance verification

Commissioning ensures the system operates as designed:

Verify refrigerant charge, airflow, and condenser performance on heat pumps
Check furnace combustion efficiency, venting, and carbon monoxide safeguards for gas systems
Measure static pressure and temperature rise through the air handler
Confirm thermostat communication, zoning dampers, and control logic
Run system through heating cycles to validate comfort and stability

Documentation of measured performance is standard so you know the system meets the calculated expectations.

Homeowner orientation and documentation

After installation you will receive a practical orientation that covers:

How to operate and program your thermostat and any smart features
Locations and maintenance of filters, access panels, and exterior units
Manufacturer warranty details, recommended service schedule, and maintenance checklists
Any system-specific tips for Hillsborough conditions, such as managing outdoor unit exposure to coastal moisture and seasonal drain maintenance

This hands-on walkthrough ensures you leave confident in system operation and care.

Maintenance recommendations for longevity and efficiency

Routine maintenance preserves efficiency and comfort:

Replace or clean filters every 1 to 3 months depending on type and occupancy
Schedule annual professional tune-ups: heat pump service in spring or fall, furnace service before the heating season
Inspect and clean outdoor units, clear vegetation, and ensure proper airflow
Periodically check duct seals and insulation, especially in attics and crawlspaces
Monitor for unusual noises, cycling behavior, or sudden efficiency drops

Regular maintenance extends equipment life and maintains manufacturer warranty compliance.

Incentives, rebates, and local programs

Many Hillsborough homeowners qualify for incentives that lower upfront cost for high-efficiency equipment:

Utility rebates from Pacific Gas and Electric (PG&E) for qualifying heat pumps, duct upgrades, and insulation
Bay Area regional programs like BayREN offering rebates for home energy improvements tied to heat pump installations and duct sealing
State and federal tax incentives and credits for energy-efficient heating systems and electrification upgrades

Program availability and eligibility change, so documentation and manufacturer specifications are important when pursuing rebates and tax credits.

Final considerations when choosing a new heating system in Hillsborough

A well-executed installation balances efficiency, comfort, and durability while reflecting the specifics of Hillsborough homes: mild coastal winters, potential for fog and moisture, and often larger or historically built interiors. Proper sizing, ductwork integrity, and professional commissioning are the keys to reliable, quiet heating that reduces operational costs and improves indoor comfort for years to come.

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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