For HVAC Fremont homeowners, IRBIS delivers Carrier-certified heating, cooling, and heat pump services with same-day availability. IRBIS handles the full HVAC lifecycle for homeowners — repair, installation, maintenance, and replacement.
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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Fantastic experience replacing our outdated gas furnace and water heater with a new heat pump system.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
If you live in Fremont, CA, and the East Bay, IRBIS Heating Cooling Plumbing can handle all your air conditioning, heating, and plumbing needs. Fremont, in Alameda County, is closely tied to Silicon Valley and offers abundant recreation, from Mission San Jose Park to Coyote Hills Regional Park, plus thriving neighborhoods and a mild climate.
Residents rely on us to keep homes safe, functional, and comfortable. We are committed to 100% satisfaction and known for high-quality installation, repair, and maintenance. Our licensed specialists are prompt, friendly, and respectful of your property. We also offer maintenance plans, discounts, and budget-friendly financing.
IRBIS takes care of all the HVAC services Fremont homes need — air conditioning, furnaces, heat pumps, and water heaters. The technicians at IRBIS are certified by Carrier and are available every day of the week.
Some neighborhoods in Fremont get really hot. These neighborhoods include Warm Springs, Mission San Jose, and Irvington. It can get up to 90-95 degrees Fahrenheit in these areas. IRBIS can help with air conditioning repair, maintenance, installation, and replacement.
Winters in Fremont are not too cold. It can get chilly in January. The temperature can go down to 43-45 degrees Fahrenheit. It is an idea to get the furnace ready in October or November. This way, it will be ready when it gets cold. IRBIS can help with furnace repair, maintenance, and installation.
The weather in Fremont is nice and mild. This makes heat pumps a choice. They can be used for heating and cooling. IRBIS can help with heat pumps. They can even help with rebates from EBCE and PG&E.
IRBIS can help with water heaters in Fremont. They can repair, maintain, and install them. They can even do it on the day. They work with water heaters and heat pump models. IRBIS is available to help with all kinds of water heaters.
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 is usually 82°F in Fremont. Neighborhoods like Warm Springs, Mission San Jose, and Irvington often get really hot, up to 90-95°F or more. This is because they are farther from the cooling Bay Breeze. Western Fremont areas like Ardenwood and Centerville are usually 5-8°F cooler in the summer. This difference is important when choosing the right system size. In January, it averages 49°F with lows around 43°F. This means heating systems need to work, not just be there. There's no rain from July to August. This dry spell makes dust build up faster in filters and coils. Fremont is a city in the Bay Area with over 230,000 people. Many tech workers live there. They want smart thermostats and efficient systems. The East Bay Community Energy (EBCE) helps. They offer rebates for people who upgrade to heat pumps and air conditioners.
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
Fremont merged five separate towns in 1956 — Centerville, Niles, Irvington, Mission San Jose, and Warm Springs. Each has a different housing stock, duct situation, and cooling load. One-size-fits-all sizing does not work here.
Fremont sits at the edge of Alameda County's fire-prone hills — Mission Peak, Vargas Plateau. During Diablo wind events in the fall, air quality drops fast. MERV-13 filtration and sealed ductwork matter more here than in coastal cities.
IRBIS serves all residential property types in Fremont — from 1950s ranch homes in Centerville and Niles to newer condos near the Warm Springs BART corridor.
Ranch-style and split-level homes in five historic districts — Centerville, Niles, Irvington, Mission San Jose, and Warm Springs. Full HVAC system upgrades and replacements.
New residential developments near Warm Springs/South Fremont BART and Fremont BART station include high-density condos and townhomes. IRBIS installs HOA-compliant quiet systems and mini-splits for units without central ductwork.
Many pre-1970 homes in Niles and Centerville were built without central ducts. Ductless mini-split systems deliver full heating and cooling — no renovation or wall work required.
All-electric packages for new builds: heat pump, water heater, and EV charger installed together — built for California's 2030 gas equipment ban.
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
The HVAC company homeowners call for any brand — Carrier, Trane, Lennox, Rheem, Daikin, Mitsubishi, Goodman, and more. IRBIS services all major brands regardless of what is currently installed — one call covers any system in your Fremont home.
IRBIS technicians are familiar with HVAC home types across all five historic districts. We serve ZIP codes 94536, 94538, 94539, and 94555, covering Centerville, Niles, Irvington, Mission San Jose, Warm Springs, Ardenwood, Cherry-Guardino, Glenmoor, Sundale, Lake Elizabeth area, Fremont BART corridor, and the Warm Springs/South Fremont BART area.
Summers hit hard in eastern neighborhoods — and Diablo wind season brings its own challenges. The IRBIS Home Care Plan keeps your system ready 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.
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.
June 30, 2026
Your garbage disposal stopped working, and you don’t know the cause of the problem. Before you dial a plumber or purchase a new garbage disposal, you can probably fix your existing one yourself in just a few minutes. We prepared this instruction that can help you to understand the common garbage disposal failures and how to troubleshoot them.
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
Yes — 5–8°F on a hot day. Mission San Jose sits further inland and gets less Bay Breeze. Central and western Fremont near Ardenwood run noticeably cooler. System sizing should reflect this.
Start with a free assessment. IRBIS technicians know Irvington's 1960s housing stock well. For no-duct homes, ductless mini-splits are the standard solution — installed in one day, no structural changes.
IRBIS's 10-year parts and labor warranty covers it. Most Fremont contractors offer 1–3 years. Two years in is well within IRBIS's full decade of coverage on parts and labor.
Carrier holds the Presidential Award — top 3% of dealers nationwide. It's not just a brand preference; it reflects technical training standards, parts availability, and warranty support. IRBIS is a certified Carrier dealer.
Replacing an AC unit costs between $5,000 and $14,000. It depends on the system size, brand, and ductwork. IRBIS gives estimates at your home with no obligation.
We can get a mini-split system. IRBIS installs in townhomes like mine near Warm Springs BART. They do it without making any holes in the wall or having issues with the HOA.
Fremont is under EBCE. Pg&e. IRBIS helps with rebate programs. They figure out which ones I qualify for and handle all the paperwork.
IRBIS can get to the home fast for an urgent repair. They offer same-day HVAC service. A technician can come to your door in the afternoon if I call in the morning.
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.
