Belmont, CA residents can rely on Plum HVAC, a full-service provider offering residential and light-commercial installation, replacement, repair, and maintenance for furnaces, air conditioners, heat pumps, and ductless systems. We cover everything from system selection and sizing to indoor air quality solutions, thermostat and zoning options, permit and rebate support, and strict safety practices. Our transparent process guides you from consultation to testing, warranty documentation, and ongoing preventative maintenance. With our local expertise, Plum HVAC effectively addresses Peninsula microclimates, wildfire smoke mitigation, and ensures compliant service tailored to Belmont homes.

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(650) 605 – 5986

HVAC Company in Belmont, CA

Belmont, CA homeowners and small business owners need reliable, efficient heating and cooling that matches Peninsula weather patterns, property constraints, and indoor air quality concerns. This HVAC Company in Belmont, CA page explains the full range of residential and light-commercial services available: installation, replacement, repair, and seasonal maintenance for furnaces, air conditioners, heat pumps, ductless mini-splits, and ductwork. It also covers system selection and sizing, indoor air quality solutions, thermostat and zoning options, permit and rebate support, licensing and safety practices, and preventative care to keep systems running efficiently year after year.

Why local HVAC service matters in Belmont, CA

Belmont sits in a mild Mediterranean climate with cool, foggy mornings and warm afternoons. Microclimates on the Peninsula can create temperature swings within the same home, and nearby wildfires increase concerns about smoke and fine particulate infiltration. Older residences and hillside properties often have space constraints or legacy ductwork that require tailored solutions. Local experience matters: technicians familiar with Belmont know how to size equipment for efficient comfort, mitigate salt air corrosion on outdoor units, and navigate San Mateo County permit and rebate processes.

Common HVAC issues in Belmont homes

Uneven temperatures between rooms due to outdated ductwork or poor zoning
Reduced cooling during summer heat spells from undersized or aging AC units
Corrosion on outdoor condensers from coastal air
Poor indoor air quality after wildfire events or during seasonal pollen
Frequent short cycling or noisy operation from aging furnaces or heat pumps
Inadequate heating in retrofit or older homes where ducting is limited

Services offered: systems and solutions

Furnace service and replacement: Inspection, diagnostic repair, safe gas fittings, and replacements with properly sized condensing furnaces where applicable.
Air conditioner repair and installation: From refrigerant checks and coil cleaning to full-system replacements with high-efficiency condensers and matched indoor coils.
Heat pump solutions: Modern heat pumps provide efficient year-round heating and cooling and are a strong option for many Belmont homes moving away from gas.
Ductless mini-splits: Ideal for additions, bedrooms, or homes without existing ductwork. Provide zoned control and minimal disruption during installation.
Ductwork services: Duct sealing, insulation, layout redesign, and replacement to correct airflow imbalances and improve efficiency.
Light-commercial HVAC: Service and maintenance for small offices, retail, and multi-family units, with attention to business hours and minimal downtime.

The service process: how we diagnose and deliver results

Consultation and walkthrough: Assess comfort issues, property layout, existing equipment, and any accessibility constraints common to Belmont homes.
System sizing and load calculation: Perform Manual J and Manual D calculations to determine proper equipment size and duct design based on home orientation, insulation, and local climate factors.
Equipment selection: Recommend systems matched to your comfort goals and budget, explaining tradeoffs between efficiency, lifetime costs, and local reliability.
Permit and rebate assistance: Help identify applicable Bay Area utility rebates, state incentives, and required San Mateo County permits, preparing documentation to streamline approval.
Professional installation: Trained technicians follow manufacturer specifications, maintain code compliance, and protect property during installation.
Testing and tuning: Verify airflow, refrigerant levels, combustion safety if applicable, and thermostat communication. Calibrate systems for optimal performance.
Warranty and documentation: Provide equipment and labor warranty details, maintenance schedules, and operational walkthroughs.

Indoor air quality and wildfire smoke mitigation

Belmont residents face occasional smoke events that can degrade indoor air quickly. Effective IAQ strategies include:

High-efficiency particulate filters (MERV 13 or higher where compatible)
Whole-house filtration upgrades and standalone HEPA solutions for rooms
UV germicidal lights for microbial control in HVAC systems
Fresh air ventilation with filtration to balance ventilation needs without bringing in smoke
Regular filter replacement and duct cleaning after major smoke events

These solutions are explained in accessible terms to help homeowners choose the right balance of filtration, ventilation, and humidity control for local conditions.

Thermostats, zoning, and smart controls

Thermostat and zoning upgrades reduce energy waste and improve comfort in Belmont’s varied home layouts. Options include:

Smart thermostats that learn patterns and optimize runtime while integrating with local utility programs
Multi-zone control for large or multi-level homes to prevent overconditioning
Dampers and zoning systems paired with ductwork upgrades
Battery-backup or network-resilient controls for reliability during outages

Technicians evaluate wiring, connectivity, and compatibility so upgrades integrate smoothly with existing systems.

Preventative maintenance plans

Regular maintenance extends equipment life and prevents emergency failures. Typical maintenance tasks:

Spring cooling tune-up: coil cleaning, refrigerant check, electrical inspection, and airflow test
Fall heating tune-up: combustion analysis (if gas), ignition safety, blower and filter inspection
Biannual filter and drain checks, belt and motor inspections, and system performance reports Maintenance plans can include seasonal visits, priority scheduling, and documented service history to support warranties and future resale value.

Transparent pricing, permits, and local incentives

Belmont homeowners benefit from clear estimates, line-item explanations, and help navigating permit requirements. Upgrades that improve efficiency may qualify for local utility rebates or state incentives. Technicians familiar with San Mateo County streamline permit submission and ensure installations meet local codes to avoid delays.

Licensing, safety, and COVID-19 precautions

Technicians are licensed, insured, and trained in local code compliance and safety best practices. Standard protocols include equipment grounding checks, refrigerant handling per EPA rules, and safe combustion testing for gas systems. During periods of respiratory disease concern, precautions such as mask use, minimized time indoors, and enhanced sanitation practices are followed to reduce risk while delivering necessary service.

Long-term benefits and homeowner tips

Timely replacements and proper maintenance improve comfort, lower energy bills, and reduce unexpected breakdowns. For Belmont properties, focus on:

Prioritizing filtration and ventilation upgrades for smoke events
Sealing and insulating ducts to combat uneven temperatures
Choosing equipment sized for Peninsula microclimates to avoid short cycling
Reviewing rebate options when planning major replacements

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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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