Central Air Conditioning Installation & Replacement in Barrington, IL

Expert Central AC Installation For Home and Business Owners

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We service Barrington, IL & Greater Chicagoland. Not sure if we service your area? Give us a call.

We're RJ's Heating, Cooling & Water Heaters

Trusted Air Conditioner Installation Services in the Barrington, IL Area

When the summer heat hits Barrington, IL, you need a central air conditioning system that delivers reliable, energy-efficient cooling. At RJ's Heating, Cooling & Water Heaters, we specialize in central air conditioning installation and replacement for residential and light commercial properties across Barrington and Northwest Chicago. Whether you're installing an AC in a brand-new home or replacing an outdated unit, our team delivers professional service, top-tier brands, and energy-saving solutions.

As a licensed, family-owned HVAC contractor with over 20 years of experience, we're proud to be a trusted name for AC installation in Barrington, IL. We offer Armstrong, Ducane, and MagicPak systems—known for their quality, performance, and value—and back every installation with upfront pricing, expert workmanship, and fast turnaround times.

Family-Owned and Operated
Family-Owned and Operated
Over 20 Years of Experience
Over 20 Years of Experience
We offer 24-hour Emergency Service
We offer 24-hour Emergency Service
Schedule Service

Proudly Installing
Equipment From

Amana
Armstrong Air Pro Team
Ducane
Daikin
Weil-McLain
State Water Heaters
Burnham
Aprilaire
Reme Halo

Why Choose RJ's for Your Central Air Installation in Barrington, IL?

Choosing the right HVAC contractor is just as important as choosing the right system. Our customers count on us for:

  • Free in-home consultations and honest recommendations
  • Certified installers with extensive product knowledge
  • A+ quality control and system testing on every job
  • Customized system sizing and design for your home
  • Top brands: Armstrong, Ducane, and MagicPak
  • Permitting, ductwork, and thermostat integration included

Whether you're looking to cool a single-family home or a multi-zone property, we'll guide you through every step—ensuring you get the most efficient system for your home and budget.

Signs It's Time to Replace Your Central Air Conditioner

Not sure if it's time for a new AC system? If you're experiencing any of the following, it may be time for a central AC replacement:

  • Your system is 10-15 years old
  • You've had frequent breakdowns or expensive repairs
  • Your home has uneven cooling or high humidity
  • Your energy bills keep increasing each summer
  • You're still using R-22 refrigerant (now phased out)

Replacing your outdated unit can save you money in the long run, improve home comfort, and increase energy efficiency—especially when you upgrade to a modern Armstrong or Ducane high-SEER system.

Choosing the Right Central AC System for Your Home

There's no one-size-fits-all when it comes to air conditioning installation. At RJ's, we evaluate your home's size, layout, insulation, ductwork, and cooling needs to recommend the best fit.

Key System Features to Consider:

  • Cooling Capacity (BTUs) – Proper sizing ensures balanced cooling without energy waste.
  • SEER Rating – Seasonal Energy Efficiency Ratio measures how efficiently a unit cools. The higher the SEER, the greater the efficiency.
  • Single-Stage vs. Two-Stage Compressors – Two-stage units offer better temperature control and energy savings.
  • Indoor Air Quality Compatibility – Systems can be paired with Aprilaire filters, UV lights, and dehumidifiers for added comfort.
  • Smart Thermostat Integration – Wi-Fi-enabled controls improve convenience and energy tracking.

We'll walk you through the pros and cons of each system and help you find the right balance of price, performance, and features.

Our Central AC Installation Process in Barrington, IL

At RJ's Heating, Cooling & Water Heaters, our central AC installation process is streamlined for efficiency, accuracy, and customer satisfaction. We handle everything from load calculations and equipment selection to ductwork updates and post-installation testing.

Step 1: In-Home Consultation

We begin with a comprehensive assessment of your home to determine the right system size and configuration. We evaluate:

  • Square footage and insulation
  • Existing ductwork and airflow patterns
  • Your comfort goals and energy preferences
  • Budget and rebate opportunities

Step 2: System Recommendation & Quote

Based on your needs, we'll recommend one or more options from Armstrong, Ducane, or MagicPak and provide a clear, upfront estimate—with no surprise charges.

Step 3: Installation Day

On installation day, our licensed technicians:

  • Safely remove the old system
  • Install your new AC system with precision
  • Integrate your thermostat and air handler
  • Modify ductwork if needed
  • Test refrigerant levels, airflow, and system cycles

We complete every job with a thorough system test and walkthrough, so you feel confident using your new cooling system from day one.

Learn More About A2L Refrigerant

New Refrigerant Regulations Are Here

HVAC systems are transitioning to A2L refrigerants in 2025. This may impact equipment availability, repair costs, and system compatibility. Have questions? Contact us today to learn what it means for you.

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Energy Efficiency & Rebates

We're proud to install ENERGY STAR®-rated air conditioning systems that help reduce energy use while keeping your home comfortable. Many utility companies in Illinois offer rebates when you upgrade to a high-efficiency central air conditioner, and we'll help you:

  • Identify rebate programs you qualify for
  • Submit required documentation
  • Choose a system that meets rebate standards

Upgrading to a high-SEER Armstrong or Ducane system can save you hundreds per year in utility bills, especially when paired with smart thermostats and IAQ add-ons.

Brands We Trust for Central AC in Barrington, IL

We proudly install and service some of the industry's most trusted central air conditioning brands:

  • Armstrong Air – High-SEER, durable systems with two-stage performance and quiet operation
  • Ducane – Reliable and budget-friendly systems ideal for homeowners seeking value and efficiency
  • MagicPak – Perfect for multi-family units, condos, or tight-space applications

Every brand we install is selected for long-term performance, energy savings, and homeowner satisfaction.

Benefits of Replacing Your Old AC System

Replacing an outdated or undersized system isn't just about better cooling—it's about total home performance. Here's what you can expect with a new central AC installation from RJ's:

  • Improved comfort and even cooling
  • Lower energy bills
  • Fewer breakdowns and costly repairs
  • Reduced humidity and better indoor air quality
  • Peace of mind with new warranty coverage

With proper system sizing, sealed ductwork, and energy-efficient equipment, you can enjoy cool, consistent temperatures throughout every room.

HVAC Zoning & Multi-Thermostat Installations

If your home has multiple floors or uneven temperatures, we can enhance your central AC installation with zoning controls. Zoning allows independent temperature settings for different parts of your home, offering:

  • Better control over comfort
  • Lower energy costs by cooling only where needed
  • Custom scheduling for different rooms or family members

Ask our experts about adding smart thermostats and zoning dampers to your system design.

RJ's Heating, Cooling & Water Heaters offers Financing RJ's Heating, Cooling & Water Heaters offers Financing RJ's Heating, Cooling & Water Heaters offers Financing
A Plan For Every Budget

Flexible HVAC Financing in Barrington, IL

At RJ's Heating, Cooling & Water Heaters, we believe that quality HVAC services should be affordable for every homeowner and business. That's why we offer flexible financing options to help you invest in new heating, cooling, or water heating systems without financial stress.

Low monthly payments with competitive interest rates
Low monthly payments with competitive interest rates.
Fast approval process
Fast approval process—quick financing for your HVAC upgrade.
Flexible terms to fit your budget
Flexible terms to fit your budget and energy efficiency goals.
Financing for HVAC installations
Financing for HVAC installations, replacements, and upgrades.

Whether you need a new furnace, air conditioner, or water heater, our trusted financing partners make it easy to spread out payments over time. Contact us today to learn more about your financing options in Barrington, IL!

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Indoor Air Quality Options for Central AC Systems

Want to improve more than just the temperature in your home? During your central air installation, we can integrate indoor air quality components that enhance your entire system:

  • Aprilaire MERV-rated air cleaners
  • Reme Halo UV purification systems
  • Whole-home humidifiers and dehumidifiers

These solutions improve air circulation, reduce allergens, and make your system more effective and efficient.

Ductwork Upgrades & Air Balancing

A new central AC unit is only as good as the ductwork that distributes the air. At RJ's, we perform ductwork inspections, upgrades, and balancing with every installation. This ensures:

  • Even airflow in every room
  • No hot or cold spots
  • Reduced system strain
  • Lower utility bills

If your ducts are leaking, undersized, or outdated, we offer custom duct fabrication and sealing services to bring your entire HVAC system up to standard.

Serving Barrington, IL & Surrounding Areas

RJ's Heating, Cooling & Water Heaters proudly serves homeowners and businesses in:

We're known for our dependable service, high-quality equipment, and customer-first approach across the region.

Our Maintenance Plan

Comfort Club Maintenance Plan for Chicagoland Area Homes & Businesses

RJ's Heating, Cooling & Water Heaters offers Maintenance Plans RJ's Heating, Cooling & Water Heaters offers Maintenance Plans RJ's Heating, Cooling & Water Heaters offers Maintenance Plans

Why Become a Member?

Prevent costly breakdowns and keep your HVAC system running at peak efficiency year-round with our Comfort Club Maintenance Plan. Routine HVAC maintenance improves energy efficiency, extends system lifespan, and prevents unexpected failures. Regular maintenance saves you money on energy bills and prevents costly emergency repairs. Sign up today and enjoy worry-free heating and cooling throughout the Chicagoland area!

Join Our Comfort Club   Comfort Club Details

Benefits of Joining the Comfort Club

Seasonal HVAC tune-ups to ensure optimal performance.

Priority service—jump to the front of the line for repairs.

Exclusive discounts on repairs and system replacements.

Extended equipment lifespan through regular maintenance.

What's Included in Your Maintenance Plan?

Furnace and AC inspections & tune-ups

Ductwork and air filter checks

Refrigerant level and thermostat calibration

Water heater efficiency checks

Our Team Is Here To Help You

Why Choose RJ's Heating, Cooling & Water Heaters?

At RJ's Heating, Cooling & Water Heaters, we are:

Local Experts
Your Local HVAC Experts

As a family-owned HVAC company with over 20 years of experience, we proudly serve Barrington and Northwest Chicago. As an Armstrong Pro and Aprilaire Partner, we deliver trusted, high-quality comfort solutions.

Customer-Focused & Reliable
Customer-Focused & Reliable

We offer 24/7 emergency service for HVAC and water heaters, upfront pricing with no surprises, and highly rated craftsmanship trusted by home and businessowners throughout the region.

Top HVAC & Plumbing Brands
Top HVAC & Plumbing Brands

We proudly install and service trusted brands like Armstrong, Ducane, MagicPak, Daikin, Burnham, Weil-McLain, Aprilaire, Reme Halo, and State Water Heaters—ensuring lasting performance and comfort you can rely on.

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Our Team Is Here To Help You Our Team Is Here To Help You Our Team Is Here To Help You
Our Service Area Our Service Area Our Service Area
Our Service Area

Reliable HVAC Services in Barrington & Surrounding Areas

We proudly serve Barrington, IL, and Northwest Chicago, covering areas such as:

Our Top Service Areas

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The Answers to Your FAQ's

Frequently Asked Questions – Central AC Installation in Barrington, IL

The average central AC installation takes one full day, depending on the size of your home and the complexity of the job. If ductwork modifications or additional zoning are required, it may take slightly longer. Our team ensures minimal disruption and same-day cooling whenever possible.

The correct size depends on your home's square footage, insulation, window placement, duct layout, and other factors. We perform professional load calculations to ensure your system is properly sized—too small and it won't cool effectively; too large and it will short-cycle and waste energy.

SEER stands for Seasonal Energy Efficiency Ratio. It measures how efficiently your air conditioner converts electricity into cooling. The higher the SEER rating, the more efficient your system will be. In Illinois, we typically recommend systems with SEER ratings between 14 and 20+, depending on budget and efficiency goals.

If your system is over 10-15 years old, experiences frequent breakdowns, or struggles to cool your home effectively, it's likely more cost-effective to replace it. A new system will offer better comfort, lower energy bills, and warranty protection.

Yes! Illinois utility providers and manufacturers often offer rebates for high-efficiency AC installations. We help identify all available rebate and tax credit options and handle the paperwork to ensure you get the maximum savings.

We install and recommend Armstrong, Ducane, and MagicPak systems—trusted brands known for durability, efficiency, and long-term value. Our team can walk you through the differences and help you choose the best unit for your home.

Our full-service AC installation includes:

  • Removal of the old system
  • New unit installation (condenser, coil, air handler)
  • Thermostat integration
  • Duct connection/modification
  • System testing and calibration
  • Cleanup and customer walkthrough

We also offer optional indoor air quality upgrades like filters, UV lights, and humidity control.

Not necessarily—but it depends on compatibility. If your existing furnace blower motor is old or mismatched with a new high-efficiency AC, it may impact performance. We'll evaluate your current system and recommend what's best.

Absolutely. We can install and configure Wi-Fi-enabled smart thermostats, including Nest, Ecobee, and Honeywell models. These systems allow you to control temperature from your smartphone and improve energy efficiency.

Yes! We provide flexible financing options with affordable monthly payments, so you can enjoy new system comfort without financial stress. Ask about current promotions and approval terms.

In many cases, yes. If your home doesn't have ducts, we may recommend ductless mini-splits or high-velocity systems. We'll assess your layout and provide the best cooling solution for your home.

Most of our systems include a 10-year manufacturer parts warranty and labor warranties for added peace of mind. We'll explain the full warranty details with every estimate.

Starting in 2025, older refrigerants like R-410A are being phased out in favor of newer, more eco-friendly options like R-454B and R-32. If you're replacing your cooling system, we'll recommend models that use the latest refrigerant technology for better efficiency, lower environmental impact, and long-term compliance. Our team ensures your new installation is fully up to date with current standards.

Seasonal Offers Made for You

Our Specials & Coupons

Check out our latest coupons and special offers to get quality HVAC service at a great price.

$500 OFF

a Full System Installation

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$500 OFF

Your Next Boiler Installation

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$50 OFF

Repairs of at least $150

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Free Humidifier

With Full System Purchase

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Schedule Your AC Installation

Let's Get Started with Central AC Installation in Barrington, IL

When it comes to central air conditioning installation and replacement in Barrington, IL, you can count on RJ's Heating, Cooling & Water Heaters for dependable, high-quality service from start to finish. Whether you're upgrading an outdated system, building a new home, or looking to improve your energy efficiency, we provide tailored solutions, top-tier products, and professional craftsmanship that you can trust.

Our team of certified HVAC professionals has over two decades of experience designing and installing central AC systems that are built to last. We work with leading brands like Armstrong, Ducane, and MagicPak, and take pride in offering cooling systems that deliver consistent comfort, energy savings, and long-term value. From in-home consultations and custom system sizing to seamless installations and thermostat integration, we manage every detail with precision and care.


As your Barrington air conditioning installation specialists, we're more than just installers—we're your full-service HVAC partner. We assess your ductwork, indoor air quality, airflow needs, and budget to create a system that performs in every room. Need financing? We offer flexible payment plans to help you upgrade now and pay over time. Want added peace of mind? Our Comfort Club Maintenance Plan helps you protect your investment with seasonal tune-ups, priority service, and discounts on future repairs.

At RJ's, we believe every home in Barrington and Northwest Chicago deserves to stay cool, safe, and efficient—even on the hottest summer days. That's why we provide fast scheduling, upfront pricing, expert installation, and continued support long after the job is done. And if your current AC fails suddenly, we're here 24/7 with emergency repair services to get your comfort back quickly.

It's time to upgrade your cooling system with help from a local HVAC company you can trust. Contact RJ's Heating, Cooling & Water Heaters today to schedule your central air conditioning installation or replacement in Barrington, IL. Let's get started and bring year-round comfort to your home—with cooling solutions that are built to perform.

872-274-4502   Schedule Today

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