IRBIS provides HVAC service in Hillsborough, CA, estates trust for precision, with same-day availability and Carrier-certified technicians on every call. Our team handles the full HVAC lifecycle, sized correctly for the largest homes on the Peninsula.
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4.9
(1,540 reviews)
4.8
(911 reviews)
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4.9
(1,540 reviews)
4.8
(911 reviews)
Fantastic experience replacing our outdated gas furnace and water heater with a new heat pump system. The team was professional and efficient. The best part? We saved thousands thanks to the generous rebates available. This upgrade is definitely worth it.
- Lamin N.
Cannot be happier with my new Heat pump water heater. It's been 2 weeks since I have it and it's working great! Tim did a thorough evaluation and installers performed neat work. Evan called to make sure we are all set up! Definitely use them again!
- Jypara E.
I must say everyone from IRBIS are very professional! Everyone from comfort advisor to scheduler and installers/technicians are very pleasant and nice to work with which totally makes the experience so great! They are really serious in bringing comfort to our home! We are happy and we'll definitely get them again for future HVAC needs!
- Shiela C.
4.9
(1,540 reviews)
4.8
(911 reviews)
Licensed CA CSLB #1048009 | Same-Day Service Available
Customers in Hillsborough, CA can count on IRBIS Air, Plumbing & Electrical for comprehensive AC, heating, and plumbing service—including installation/replacement, repair, and routine maintenance. Whether it’s restoring comfort after an unexpected breakdown or upgrading older equipment, our team is ready to help with any HVAC or plumbing concern throughout Hillsborough and nearby communities.
The services we’re known for keep homes safe, functional, and comfortable. We’re committed to 100% customer satisfaction on every call. Our specialists are fully licensed and trained to diagnose issues accurately and install any make or model of heating, cooling, or plumbing equipment. With prompt, friendly professionals—plus available discounts, maintenance plans, and financing—IRBIS Air, Plumbing & Electrical has you covered and is ready to work with your budget.
IRBIS delivers full HVAC services in Hillsborough -- cooling, heating, heat pumps, and water heaters -- with same-day availability and Carrier-certified status. As the HVAC contractor, estate owners call first, and our team treats every property as a multi-zone job. Precise load calculation is part of every visit, not an upsell.
Hillsborough summers average 78-82°F with occasional heat waves above 90°F. IRBIS handles AC repair, maintenance, installation, and replacement -- sized for estate square footage.
January lows average 43°F, and coastal fog makes it feel colder than the number suggests. A furnace built for a 2,000 sq ft home fails in a 6,000 sq ft estate.
Mild Peninsula winters make heat pumps a practical year-round choice -- one system for heating and cooling. Qualifying installations may be eligible for Peninsula Clean Energy (PCE) rebates.
Repair, maintenance, and installation - traditional and heat pump water heaters -- sized for main residences, guest houses, and pool buildings.
Electrifying your entire home at once, instead of upgrading individual systems separately, creates a unified and energy-efficient solution.
Heating and cooling capabilities in one unit
Minimal carbon footprint
Comes with a 10-year manufacturer’s warranty for peace of mind
Operates during off-peak hours when electricity rates are lower
75% more energy-efficient than traditional gas water heaters
Tracks energy consumption to help reduce costs
Equipped with EcoNet Wi-Fi for remote control, monitoring, and energy-saving "away mode" from your smartphone
Seamlessly charge your electric vehicle at home
Heating and cooling capUpgraded electrical capacity to support new electric systems, ensuring safe and reliable powerabilities in one unit
Costs for electrification projects will increase as the deadline approaches. Act fast to avoid higher expenses.
Get Up to $10K 0% APR Financing With No Credit Check
Available Rebates
California Energy-Smart Homes $4250
Tech Clean up to $1000
Silicon Valley Clean Energy up to $3000
Peninsula Clean Energy up $2000
Tax credits up to $2000
Reduce Your Carbon Footprint
Boost Your Property Value
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As a licensed HVAC Contractor, we'll handle the manufacturer claim and secure the parts for you!
No charges for parts
No service fee with approved repair
We work with any manufacturer brand
Avoid peak electricity prices by automatically scheduling your EV charging during off-peak hours.
Use the SPAN app to charge your EV overnight or during the cheapest times of day.
Key add-on for EV charger installation, boosting your electrical system to support the 240-volt power needed for efficient level-2 charging.
Ensures safety and reliable charger performance.
Recognize the warning signs before leaks, corrosion, or pressure issues cause costly damage.
AC Repair
AC Repair provides fast AC diagnostics and fixes, using a clear process: inspection, recommendations, service, and post-repair support.
AC Maintenance
AC Maintenance that inspect, clean, and optimize your system to boost efficiency, prevent breakdowns, and extend lifespan.
AC Instalation and Replacement
AC Installation and Replacement at IRBIS means selecting and installing/replacing energy-efficient systems tailored to your home’s size, climate, and savings goals.
Discolored or Rusty Water
Brown or cloudy water often means corrosion inside your main water line — time for a full water line replacement.
Home Renovations or Upgrades
Planning a remodel? That’s the perfect time for a residential water line replacement to modernize your plumbing system.
Recognize the warning signs before leaks, corrosion, or pressure issues cause costly damage.
Furnance Repair
When your heating system falters, furnace repair restores safe, efficient heat; technicians inspect key components, explain options, and carry out the necessary fixes promptly.
Furnance Maintenance
To keep your system safe and efficient, furnace maintenance provides a scheduled tune-up that includes cleaning, testing, heat-exchanger and burner checks, and airflow verification.
Furnance Instalation and Replacement
As a turnkey service, furnace installation and replacement right-sizes, swaps out the old unit, installs to code with safe venting, and verifies startup.
Home Renovations or Upgrades
Planning a remodel? That’s the perfect time for a residential water line replacement to modernize your plumbing system.
Recognize the warning signs before leaks, corrosion, or pressure issues cause costly damage.
Heat Pump Repair
Heat pump repair quickly diagnoses and fixes issues like no heat/cool, icing, leaks, or odd noises to restore efficiency.
Heat Pump Maintenance
Heat pump maintenance is a scheduled tune-up that cleans, inspects, and tests key components to keep the system efficient and reliable.
Heat Pump Installation and Replacement
Heat pump installation covers a home assessment and right-sizing, removal of old equipment, placement of indoor/outdoor units, electrical hookups, thermostat setup, and code-compliant commissioning.
Home Renovations or Upgrades
Planning a remodel? That’s the perfect time for a residential water line replacement to modernize your plumbing system.
Alert
July highs average 78-82°F, with occasional heat waves pushing past 90°F. January lows sit around 43°F, and coastal fog makes the air feel colder than the thermometer shows. Annual rainfall reaches roughly 25 inches -- higher than most South Bay cities --, and Hillsborough sits inside the California Fog Belt, logging 100+ fog days a year. Summer humidity runs 60-75% on many days, which means HVAC systems perform differently here than in the dry inland South Bay.
From noisy A/C units to poor airflow — we’ve seen it all and fixed it all.
Water Heater Repair
Leaks, no heat, temperature swings, or noisy operation—are diagnosed and fixed with water heater repair, restoring reliable hot water.
Water Heater Maintenance
By cleaning, inspecting, and testing, water heater maintenance helps keep it safe, efficient, and long-lasting.
Water Heater Installation and Replacement
From sizing and choosing the correct tank to removing the old heater and running startup tests, water heater installation & replacement covers it all.
Electrical panel
Electrical Panel at IRBIS: licensed electricians diagnose, repair, and upgrade breaker panels to restore safe, handling permits and inspections.
From noisy A/C units to poor airflow — we’ve seen it all and fixed it all.
Drain Cleaning
Drain cleaning clears clogged drains using augers/snakes, hydro-jetting, and video inspection to find the cause—restoring flow, and helping prevent future blockages.
Sewer Services
Sewer services include camera inspections to find blockages, cracks, and root intrusion, plus hydro-jetting and snaking to restore flow.
Gas Line Services
Gas line services include licensed, code-compliant leak detection and repair, new line installation, and full replacements.
Water Pipe Services
Water pipe services cover leak detection, quick repairs, pressure restoration, and full replacements for damaged supply lines.
Garbage Disposal Services
Garbage disposal service covers professional repair, installation, and replacement to fix jams, leaks, and loud operation and to upgrade old units for quieter, efficient performance.
Modern cooling solution for your home.
Efficient
Quiet
Affordable
Eco-friendly
Top-tier energy efficiency.
Quiet, insulated cabinet
Modern cooling solution for your home.
Efficient
Smart
Quiet
Eco-friendly
Efficient
Smart
Modern cooling solution for your home.
Efficient
Quiet
Efficient
Quiet
Eco-friendly
Affordable
Top-tier energy efficiency.
Quiet, insulated cabinet
Saves money, delivers superior comfort
Quiet
Efficient
Affordable
Top-tier energy efficiency.
Quiet, insulated cabinet
Smart
Weak or no cooling
Poor airflow from vents
Loud or strange noises
Water leaks or moisture buildup
A/C constantly turns on and off
Rising energy bills
Thermostat not responding
Poor indoor air quality
Alert
Hillsborough has no commercial buildings and no apartments -- the town charter limits the city to private residential estates only. Homes range from 1920s Mediterranean Revival mansions to contemporary builds, often 4,000-10,000+ sq ft, with minimum lot sizes of half an acre. Many properties include guest houses, wine cellars, or pool buildings that require independent climate zones rather than a single system serving the whole estate. Smart home integration -- Google Home, Apple HomeKit -- is common across Hillsborough properties, and any HVAC system installed has to be compatible. This is not a standard HVAC job. Proper load calculation, multi-zone design, clean installation around historic finishes, and permit management with the Town of Hillsborough are required, not optional extras.
A miscalculated system on a 6,000+ sq ft estate does not just run inefficiently, it leaves entire wings too hot or too cold. Multi-zone load calculation prevents the uneven temperatures common in undersized estate installations.
Wildfire smoke season runs June through October, and particulates infiltrate even well-sealed Hillsborough homes. High-MERV filtration and tighter duct sealing keep indoor air quality stable for estates surrounded by wooded hillsides.
IRBIS HVAC services cover every residential estate type in Hillsborough -- from 1920s Mediterranean Revival mansions to contemporary estates with detached guest houses and pool buildings.
Single-family estates make up the entire Hillsborough housing stock, spanning the 1920s through today. IRBIS sizes systems for square footage well above the South Bay average.
Hillsborough's town charter prohibits townhouses and condos -- every property is a single-family estate. The closest equivalent IRBIS service is a detached guest house with its own HVAC zone.
Many original Hillsborough mansions built before 1960 have no central ductwork or chases too narrow for modern systems. Ductless multi-split installations solve this without disturbing historic plaster or trim.
Heat pump, water heater, and EV charger installed as one coordinated package -- built for California's 2030 gas equipment ban and eligible for PCE rebates.
Carrier Presidential Award Winner
Not every HVAC company earns this — IRBIS does. Carrier is the benchmark for premium HVAC, and this award confirms our installation and service standards meet their highest criteria.
10-Year Parts & Labor Warranty
Competitors offer 12 months on repairs and 3 years on installations. IRBIS gives you 10 years, in writing.
Same-Day Service, 7 Days a Week
Call before noon, and we will arrive today.
4.9 Google | 4.8 Yelp
1,451 Google reviews and 615 Yelp reviews from real Sunnyvale customers.
Licensed & Insured — CSLB #1048009
Every technician is a licensed HVAC professional, not a subcontractor.
Alert
Carrier, Trane, Lennox, Rheem, Daikin, Mitsubishi, Goodman -- as the local HVAC company estate owners call for heating and air conditioning of any scale, IRBIS services every major brand regardless of what is currently installed. Whether it is a single-zone repair or full-estate heating and air conditioning replacement, our HVAC contractor team covers any system on the property.
IRBIS HVAC technicians know Hillsborough's estate neighborhoods inside out -- ZIP code 94010, covering the Carolands, Skyfarm, Tobin Clark Estate, Lower Hillsborough, and the hillside properties along Ralston Avenue and Polhemus Road. Whether the property is a 1920s Mediterranean Revival or a contemporary multi-wing build, our team understands the sizing and zoning demands unique to estate-scale homes here.
Multi-zone estate systems need more frequent attention than a standard home. The IRBIS Home Care Plan keeps every zone in your Hillsborough property tuned year-round -- for $24.95 a month.
Seasonal Maintenance
Full HVAC, Plumbing, Electrical Maintenance
Free Inspections
Regular fee $115
VIP Priority Scheduling
Get an appointment within 48h or faster
Special discounts
20% off for repairs, 5% off for replacements
Alert
COMPREHENSIVE INSPECTION
We check every system component to catch issues early and ensure peak performance.
DETAILED REPORTING
You get a clear summary of system status and recommended actions after each visit.
FULLY STOCKED VAN
Our vans are loaded with tools and parts to fix most issues right away.
ON TIME ARRIVAL
We respect your time and always arrive as scheduled.
EXTENDED WARRANTIES
Extra protection with extended coverage on parts and labor.
Alert
You Got 10% Off Your First Service!
Step 1
Our trained and licensed specialists will diagnose your air conditioner, meticulously evaluating all components. This thorough assessment ensures the root cause of any issue is identified, preventing recurring problems and ensuring the system operates at peak efficiency.
Step 2
Based on the assessment, we will recommend tailored solutions to address your air conditioner’s issues. This approach empowers homeowners to make informed decisions about repairs, considering factors such as budget, urgency, and long-term system performance.
Step 3
Once you select a repair option, IRBIS technicians will carry out the necessary repairs using high-quality parts and tools. Their expertise and well-equipped vans allow them to handle most repairs promptly, ensuring your HVAC system is back to optimal efficiency with minimal downtime.
Step 4
We provide ongoing support and expert advice to help ensure the continued efficiency of your HVAC system.
Step 1
We begin with a whole-home review to map your path to electrification. This includes evaluating your current heating and cooling, water heating, EV charging readiness, and electrical panel capacity, so we can plan a cohesive upgrade rather than piecemeal fixes. Our team guides you step by step and focuses on efficient, all-electric options for comfort and savings.
Step 2
You will receive a tailored plan that can include a heat pump for heating and cooling, a smart heat pump water heater, a home EV charger, and an electrical panel upgrade for safe capacity. We also outline free estimates, financing options, and available incentives and rebates, including local programs and federal tax credits, to lower your total project cost.
Step 3
Once approved, IRBIS handles the end-to-end work. We remove outdated equipment, install new electric systems, set up proper electrical and refrigerant connections, and complete permitting and inspections where required. We coordinate scheduling for efficient completion, with same-day and weekend availability and a satisfaction guarantee.
Step 4
After installation, we remain available for maintenance and performance checks across your heat pump, water heater, panel, and EV charger, helping you sustain comfort, safety, and energy savings over time.
Step 1
Our licensed electricians begin with a thorough diagnostic of your electrical panel to identify the root cause of problems such as frequent breaker trips, flickering lights, burning odors, buzzing sounds, or overheating. We evaluate safety and code considerations so your home’s power is stable and reliable.
Step 2
Based on the assessment, we recommend targeted repairs or, if needed, an upgrade when the panel is outdated or damaged. Solutions can include breaker replacement and corrective wiring, all planned for safety, code compliance, and long-term reliability.
Step 3
Once you approve the plan, IRBIS technicians perform the work with quality components and strict adherence to electrical codes. We handle everything from precise repairs to complex wiring, followed by comprehensive testing to confirm safe and efficient operation before restoring full power.
Step 4
After service, we are available for follow-up checks and additional diagnostics as needed, helping maintain a safe and dependable electrical system for your home in San Jose and surrounding communities.
Step 1
A licensed technician will visit your home to evaluate the best charger location, required wiring, panel capacity, and code requirements. We check access to parking, cable routing, ventilation where applicable, and any trenching or conduit needs, so the plan is safe and efficient from the start.
Step 2
Based on the assessment, we will recommend the right solution for your vehicle and home, including Level 2 home chargers and compatible hardware. You will receive a clear proposal that covers equipment options and any permitting or inspection steps for your city.
Step 3
Once you approve the plan, IRBIS electricians handle the entire installation, including panel work if needed, dedicated circuit, conduit and wiring, mounting, and clean electrical connections. We remove any outdated equipment, obtain permits when required, schedule inspections, and complete startup and testing for reliable daily charging. Service is available across San Jose and nearby cities for prompt, professional installation.
Step 4
We provide guidance on safe operation, settings, and routine checks, and are available for maintenance or upgrades as your charging needs evolve. Our goal is a dependable, code compliant charging setup that keeps your EV ready every day.
No need to take time off work or ask a family member to stay home
Step 1
Our licensed plumbers will carefully diagnose your plumbing system, checking pipes, drains, and fixtures to pinpoint the root cause of any issue. This thorough assessment ensures lasting repairs and prevents recurring problems.
Step 2
Based on the inspection, we’ll recommend tailored solutions—whether it’s repairing a leak, clearing a drain, or replacing old pipes. Our approach helps homeowners choose the option that best fits their budget, urgency, and long-term needs.
Step 3
Once you approve the solution, IRBIS plumbers carry out the work using high-quality materials and proven methods. With fully stocked vans and years of expertise, most repairs and installations are completed in one visit, keeping your home running smoothly.
Step 4
Beyond the repair, IRBIS provides expert tips and ongoing support to help maintain your plumbing system—preventing future issues and ensuring peace of mind.
Step 1
Our trained and licensed specialists will diagnose your furnace, meticulously evaluating all components. This thorough assessment ensures the root cause of any issue is identified, preventing recurring problems and ensuring the system operates at peak efficiency.
Step 2
Based on the assessment, we will recommend tailored solutions to address your furnace’s issues. This approach empowers homeowners to make informed decisions about repairs, considering factors such as budget, urgency, and long-term system performance.
Step 3
Once you select a repair option, IRBIS technicians will carry out the necessary repairs using high-quality parts and tools. Their expertise and well-equipped vans allow them to handle most repairs promptly, ensuring your HVAC system is back to optimal efficiency with minimal downtime.
Step 4
We provide ongoing support and expert advice to help ensure the continued efficiency of your HVAC system.
Step 1
Our licensed and insured technicians will inspect your heat pump, including air-source, ducted, ductless, or hybrid configurations. We evaluate core components such as the evaporator, compressor, condenser, expansion device, controls, refrigerant charge, electrical and airflow, so the root cause is identified and efficiency and safety are restored.
Step 2
Based on the assessment, we will recommend targeted repairs, performance restoration, or a replacement tailored to your home. If replacement is the best path, we provide heat pump options, free estimates, flexible financing, and guidance on qualifying for local, state, and federal incentives, including TECH Clean California, SVCE, PCE, and federal tax credits.
Step 3
Once you choose a solution, IRBIS technicians complete the work using quality parts and professional tools. We handle removal of old equipment, clean electrical and refrigerant connections, proper airflow and charging, permitting when required, and startup and tuning.
Step 4
We provide continued care to keep your heat pump reliable and efficient, including annual professional maintenance, filter changes, coil cleaning, performance checks, and recommendations to reduce energy use. Regular service helps prevent breakdowns and extend system life.
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July 15, 2026
Most plumbing problems don’t announce themselves in advance. A water heater that’s quietly filling with sediment, a supply line under the sink that’s slowly degrading, a drain that’s 80 percent blocked but still technically draining — these issues build up over months and years until the day they turn into an emergency call and a water-damaged floor.
July 8, 2026
Air conditioner replacement cost in San Jose almost never lines up with the national figures online. Most national estimates land between $5,000 and $12,000.
July 6, 2026
Most homeowners don’t think about their pipes until something forces the issue — a persistent drop in water pressure, water that runs orange when you first turn on the tap, or leaks that keep appearing in different spots, no matter how many times they’ve been patched.
Jun 19, 2024
Choosing the right heating and cooling system for your home is more important than you might think. It affects your comfort, energy bills, and even the environment.
Jun 19, 2024
Choosing the right heating and cooling system for your home is more important than you might think. It affects your comfort, energy bills, and even the environment.
Jun 19, 2024
Choosing the right heating and cooling system for your home is more important than you might think. It affects your comfort, energy bills, and even the environment.
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Questions & Answers
A standard single-zone replacement runs lower than a multi-zone estate system, which factors in additional zones, ductwork, and controls. We provide a written estimate before any work begins.
Yes. We install smart thermostats and zoning controls compatible with both platforms, matching the smart home integration already common across Hillsborough estates.
Every IRBIS installation comes with a 10-year parts and labor warranty -- a full decade of coverage, well beyond the 1-3 years most local contractors offer.
Yes. IRBIS handles the full PCE application process and confirms current funding status at your estimate, since program amounts update throughout the year.
Most years, yes. Average highs run 78-82°F, but heat waves push past 90°F, and a 6,000 sq ft home holds that heat for days without proper cooling capacity.
IRBIS pulls all required permits and coordinates inspections with the Town of Hillsborough. You do not need to handle any paperwork -- we manage the entire process.
No. Our technicians route ductless lineset and minimal ductwork to avoid disturbing historic plaster and trim. We walk through the plan with you before any work begins.
Yes. Detached structures get their own zone or standalone system, controlled separately from the main house. This is one of the most common requests on Hillsborough properties.
We run a full Manual J load calculation per zone, factoring square footage, ceiling height, window exposure, and insulation. Estate homes typically need multiple independent zones, not one oversized unit.
Plumbing refers to the system of pipes, fixtures, and fittings that bring clean water into your home and remove wastewater. It includes everything from your water supply lines and drains to sewer pipes and gas lines.
No. Electrical work requires specialized knowledge and equipment. Attempting to do it yourself can result in electric shock, fire, and violation of regulations.
Whole house electrification is the process of upgrading a home so it can run entirely on electricity without the need for fossil fuels, gas, or even wood. This process usually requires guidance and work completed by a professional electrician and home services provider.
The furnace requires annual maintenance, ideally in the fall before the heating season begins. Immediate maintenance may also be necessary if you notice any unusual symptoms, such as strange noises, unusual odors, decreased comfort, or frequent switching on and off.
