Residential New/Upgrade System Installation

Residential HVAC Installation in Ventura & LA County

Upgrade Your Comfort. Lower Your Energy Bills. From replacing outdated systems to installing HVAC in a new home, we install systems built for long-term comfort, efficiency, and reliability.

Certified and Trusted for Quality Services

Residential HVAC Installation Services

Our residential HVAC installation services include:

Types of Residential HVAC Systems We Install

Choosing the right HVAC system can significantly impact your home’s comfort and energy usage. We help homeowners select the best system based on home size, insulation levels, and climate needs.

Air Conditioner

High-efficiency air conditioning systems provide dependable cooling during Ventura County’s warm summers. Our professional AC installations ensure optimal airflow, improved efficiency, and reliable performance for years to come.

Heat Pump

Heat pumps provide both heating and cooling in a single system. These energy-efficient systems are ideal for Ventura County’s moderate climate and can significantly reduce energy costs.l airflow, improved efficiency, and reliable performance for years to come.

Radiant Floor Heating

Gas and oil furnaces deliver powerful, reliable heating during colder months. We install modern furnace systems designed for efficiency, safety, and consistent indoor warmth.

Dual Fuel System

Dual fuel systems combine the efficiency of a heat pump with the power of a gas furnace, automatically switching between energy sources to maximize comfort and efficiency throughout the year.​

Gas & Oil Furnace

Radiant floor heating systems provide comfortable, even heat by warming the floor surface directly. This energy-efficient heating solution eliminates cold spots and improves indoor comfort.

Ductless Mini-Split​

Ductless mini-split systems offer flexible temperature control without the need for traditional ductwork. They are perfect for home additions, older homes without ducts, or room-by-room comfort control.​

Packaged Rooftop Units​

Packaged HVAC systems combine heating and cooling components in a single outdoor unit, often installed on rooftops or exterior areas. These systems are ideal for homes with limited indoor mechanical space.​

Garage Heater

Garage heaters provide reliable warmth for garages, workshops, and utility spaces. These systems help maintain comfortable temperatures during colder weather.

Gas Boiler

Gas boiler systems provide efficient heating by circulating hot water through radiators or radiant floor systems. Boilers offer consistent and comfortable heating throughout the home.

Air Conditioner Heat Pump Radiant Floor Heating Dual Fuel System Gas & Oil Furnace Ductless Mini-Split​ Packaged Rooftop Units​ Garage Heater Gas Boiler

Indoor Air Quality System Installation

Indoor air quality plays a major role in maintaining a healthy and comfortable home. In addition to heating and cooling systems, we install advanced indoor air quality solutions that help improve the air you breathe.

  • Air Purification Systems

Whole-home air purification systems remove airborne contaminants such as dust, allergens, and bacteria.

  • Whole-Home Humidifiers

Humidifiers help maintain proper humidity levels inside the home, improving comfort and protecting indoor air quality.

  • Ventilation Systems

Ventilation solutions improve airflow and help circulate fresh air throughout your home.

Smart Thermostat Installation

Smart thermostats allow homeowners to control their HVAC systems remotely while improving efficiency and convenience.

 

With smart thermostat technology, you can:

  • Adjust temperatures from your smartphone

  • Set automated schedules

  • Monitor energy usage

  • Improve system efficiency

Our technicians install and configure smart thermostats to ensure seamless integration with your HVAC system.

New Construction HVAC Installation

If you’re building a new home, installing the right HVAC system from the beginning is critical for long-term comfort and efficiency.

Kaiser Air Conditioning works with homeowners, builders, and contractors to design and install HVAC systems for new residential construction projects. Our services include:

  • Complete system design and planning

  • Ductwork installation

  • Equipment installation

  • Ventilation and airflow balancing

Proper HVAC planning during construction ensures your home receives balanced airflow and consistent temperatures throughout every room.

The "Repair vs. Replace" Decision Guide

Our NATE-certified technicians perform a rigorous diagnostic to ensure your system is safe, efficient, and ready for the season.

Repair if:

Age:
 The system is under 10 years old.
Cost: The repair is less than 30% of a new unit.
Performance: Your energy bills are consistent.
Health: The unit just needs a minor “part swap.”
Replace if:

Age: It’s 12–15+ years old (past its prime).
Cost: Repairs are frequent or exceed 50% of the value.
Performance:  Your bills are skyrocketing every summer.
Health:  Cracked heat exchanger or dead compressor.

Our Installation Process

Simple, Stress-Free Installation

In-Home Evaluation

We assess your home and comfort needs.

System Recommendation

We recommend the best system for your space and budget.

Professional Installation

Installed by certified technicians with a focus on precision and thoroughness.

System Testing & Walkthrough

We ensure everything works perfectly and show you how to navigate your new installed HVAC.

The Kaiser Air Conditioning Advantage

HVAC System Sizing & Load Calculations

One of the most important steps in residential HVAC installation is determining the correct system size. Installing equipment that is too large or too small can lead to problems such as uneven temperatures, higher energy bills, and premature system wear.

Our technicians perform professional load calculations to determine the ideal HVAC system capacity for your home. This process ensures your system operates efficiently and delivers reliable comfort without unnecessary energy consumption.

Proper system sizing helps prevent:

Energy-Efficient HVAC Options

Modern HVAC systems are designed with advanced energy-saving technology that improves efficiency and reduces utility costs. Upgrading to a high-efficiency heating and cooling system can significantly lower energy consumption while maintaining consistent comfort.
Our team helps homeowners choose energy-efficient equipment that meets both their comfort needs and budget.

Benefits of energy-efficient HVAC systems include:

HVAC System Fit for Your Home​

A proper HVAC system is essential for efficient heating and cooling. By carefully designing the system around your home’s layout, we ensure balanced airflow and consistent temperatures throughout the house.

We evaluate multiple factors before installing a system, including:

How Much Does Residential HVAC Installation Cost in Ventura County?

The honest answer is: it depends. The right HVAC system for your home is the one that’s sized correctly for your square footage, suited to your insulation and ductwork, and matched to how you actually live. Two homes on the same Ventura County street can have very different installation costs for entirely legitimate reasons. That’s why every Kaiser quote starts with a free in-home estimate — there’s no fair way to give you a real number without seeing the home.

Here Are The Factors That Drive The Price Of A Residential HVAC Installation

System type and tonnage

Central air conditioning is sized in tons — typically 1.5 to 5 tons for residential systems. A larger or higher-end system costs more. Heat pumps tend to cost more upfront than straight AC units but use less energy long-term. Ductless mini-splits cost more per zone than central air but require no ductwork. Packaged units cost less to install than split systems in homes that already have the right setup.

Ductwork condition

If your existing ductwork is sound, the install is cheaper. If ducts are leaking, undersized, poorly insulated, or missing in parts of the home, repair or replacement adds meaningfully to the project — sometimes more than the equipment itself.

Electrical and permit requirements

Older homes sometimes need an electrical panel upgrade to support a new high-efficiency system. Permits and inspections are required across Ventura County and built into every legitimate installation cost.

Removal of old equipment

Disposal of your existing furnace, condenser, or coil is part of a full installation and is reflected in the quote.

Energy efficiency rating

A 14 SEER system costs less than a 20 SEER variable-speed system. The higher-efficiency system pays back over time through lower energy bills, especially in Ventura County's long cooling season.

Brand and warranty

Kaiser is an Authorized Carrier dealer, and Carrier's tiered lineup (Comfort, Performance, and Infinity series) gives homeowners real choices at different price points. Each tier comes with different warranty coverage.

Financing

We offer financing for qualified customers, which lets you spread the cost of a new system over manageable monthly payments instead of paying the full project up front.

Tier 1 Cities We Serve for Residential HVAC Installation

Kaiser has been the local HVAC contractor for Ventura County since 1981. Here’s a quick look at the cities where we do the most residential installation work:
HVAC installation and repair services in Camarillo, CA by Kaiser Air Conditioning

Camarillo

Our warehouse is in Camarillo, so this is effectively our second headquarters. We've installed and serviced systems for homeowners throughout Mission Oaks, Las Posas Estates, and the neighborhoods around CSU Channel Islands for decades.

See our Camarillo HVAC services →

Kaiser Air Conditioning HVAC service van in Oxnard, CA near harbor waterfront

Oxnard

Coastal salt air is hard on HVAC equipment, and Oxnard homes need installations and ongoing service designed for that environment. We've been serving Oxnard homeowners for 44 years and know what holds up here.

See our Oxnard HVAC services →

HVAC repair and air conditioning installation services in Ventura, CA

Ventura

From the hillside neighborhoods above downtown to the homes near the beach, Ventura homes vary enormously in age, layout, and ductwork. Kaiser handles new installations, full system replacements, and ductwork retrofits across the city.

See our Ventura HVAC services →

Thousand Oaks CA HVAC repair and AC installation services

Thousand Oaks

Larger Thousand Oaks homes often need multi-zone or higher-tonnage systems to cool efficiently. Kaiser is an Authorized Carrier dealer with experience sizing systems properly for the climate variation between the foothills and the valley floor.

See our Thousand Oaks HVAC services →

Westlake Village CA HVAC repair and air conditioning installation services

Westlake Village

Westlake Village homes — particularly the older custom builds — frequently benefit from ductless mini-split additions or full Carrier Infinity system upgrades. We design and install both.

See our Westlake Village HVAC services →

Ductless Mini-Split System Installation

Not every home is a good fit for traditional central air. Ductless mini-splits — sometimes called ductless heat pumps — are a good answer for several common situations Ventura County homeowners face.

When Mini-Splits Make Sense

Older homes without existing ductwork

Many homes built before the 1970s in Ventura, Ojai, and Santa Paula were built with wall or floor heating and no central air. Retrofitting central ductwork into these homes is expensive and disruptive. A ductless mini-split delivers proper cooling and heating without tearing up walls or ceilings.

Room additions and converted garages

Extending existing ductwork to a new bedroom, ADU, or converted garage often doesn't deliver enough airflow to that space. A dedicated mini-split for the added room handles it cleanly.

Multi-zone homes where some rooms run hot or cold

If your existing system can't keep one part of the house comfortable, a mini-split for that zone often solves the problem without rebalancing the whole system.

Energy-conscious homeowners

Modern ductless mini-splits achieve very high SEER ratings — often 22 or higher — and the inverter-driven compressors run efficiently at part load, which is most of the year in coastal Ventura County.

How Kaiser Approaches The Install

We start with a free in-home evaluation to see how many indoor units are needed, where the outdoor condenser will go, what electrical work is required, and how the refrigerant lines will route. We size the system to your actual load, not a one-size-fits-all assumption. As an Authorized Carrier dealer, we install Carrier’s residential mini-split lineup and stand behind the warranty.

If you’re not sure whether ducted central air or ductless mini-splits make more sense for your home, the in-home estimate is the right way to find out. Kaiser will give you a straight answer.

Energy-Efficient HVAC Systems and SEER Ratings

A new HVAC system isn’t just about comfort — it’s also a long-term energy decision. Here’s what to know.

What SEER means

SEER (Seasonal Energy Efficiency Ratio) measures how much cooling a system delivers per unit of electricity over an entire cooling season. The higher the SEER number, the less electricity the system uses to deliver the same comfort. Current federal minimum is 14 SEER for split systems in California; many of the high-efficiency models Kaiser installs are rated 18 to 22 SEER or higher.

Why a higher SEER pays back

In a typical Ventura County home, the cooling season runs from late spring through early fall — five to six months of real work for the AC. Over the 15-to-20-year life of a properly maintained system, the energy savings from a higher-SEER unit usually offset the higher upfront cost. The payback period depends on your usage and electricity rates, which is part of what the in-home estimate spells out.

ENERGY STAR certification

Many of the residential HVAC systems Kaiser installs carry ENERGY STAR certification, which signals that the equipment meets independent efficiency standards beyond the federal minimum. ENERGY STAR-certified systems are also typically eligible for utility rebates and tax credits — these change year to year, and we walk customers through what's currently available during the estimate.

Right-sizing matters more than people think

An oversized AC unit short-cycles, wears out faster, and doesn't dehumidify properly. An undersized unit runs constantly and never quite catches up on hot days. Kaiser sizes systems based on a proper load calculation — square footage, insulation, window count, sun exposure — not a rule of thumb. Getting the size right is the single biggest efficiency decision in any new install.

Maintenance keeps efficiency high

Even a 20 SEER system loses efficiency if filters clog, refrigerant levels drift, or coils get dirty. Annual maintenance keeps the system performing the way it was rated to perform. Kaiser's HVAC maintenance plans cover this; ask about them during your estimate.

Frequently Asked Questions About Residential HVAC Installation

How long does a typical residential HVAC installation take?

Most full system installations are completed in one to two days, depending on whether ductwork modifications are needed. Replacement of like-for-like equipment in a home with sound ductwork is usually a one-day job. Larger or more complex projects may take longer; we’ll give you a realistic schedule during the in-home estimate.

Yes, an adult should be home at the start of the install to confirm placement details and at the end to walk through the new system. Kaiser’s installers are licensed, insured, and have been doing this since 1981 — you’ll know what’s being done at every step.

In most cases, yes — especially if you’re replacing a system that’s more than 10 to 15 years old. A modern higher-SEER system in a properly sized configuration typically reduces cooling energy use significantly. The exact savings depend on your current system, your home, and your usage; the in-home estimate will give you a realistic projection.
Yes, HVAC installations require permits in every city in Ventura County, and Kaiser handles the permit process on your behalf as part of the installation. Anyone offering to install without permits is doing you a disservice.
Yes, we offer financing for qualified customers, which lets you spread the cost of a new HVAC system into manageable monthly payments. We can walk you through the financing options during your free in-home estimate.
Kaiser is an Authorized Carrier dealer, so we install the full Carrier residential lineup — Comfort, Performance, and Infinity series, plus Carrier ductless mini-splits and heat pumps. Carrier’s warranty coverage and dealer network are why we stand behind the brand.

A licensed Kaiser comfort specialist comes to your home, measures and inspects the relevant spaces, reviews your current system and ductwork, asks about how you use the home, and gives you a written quote with system options, warranty details, and financing terms. No obligation, no pressure.

Why Homeowners Choose Kaiser Air Conditioning

Years of Service
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Expert System Sizing

Honest, no-pressure recommendations

Energy-efficient solutions that save you money

Certified Technicians
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HVAC Installations & Service Projects in Ventura County

Satisfied Client
88 %

"The heat in the house is even like it's never been; we used to have hot and cold areas, now we don't. We just felt so strongly about our experience—it was just so great; we got so much more than we thought we were going to get."

Serving Ventura and LA Counties Since 1981

For over four decades, Kaiser Air Conditioning has helped homeowners and businesses maintain reliable indoor comfort with expert HVAC service and maintenance.

Schedule Your Residential HVAC Installation

If you’re ready to upgrade your home’s comfort with a professionally installed HVAC system, the experts at Kaiser Air Conditioning are here to help.

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Easy Financing

Flexible payment options to fit your budget. Ask about competitive financing plans on qualifying systems and installations.

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