Your #1 HVAC Service in Elgin, IL

Reliable Heating & Cooling Solutions in Elgin, IL

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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 HVAC Services in Elgin, IL

RJ's Heating, Cooling & Water Heaters proudly provides trusted HVAC services in Elgin, IL, delivering comfort solutions that local homeowners and small business owners can count on. With over two decades of experience and a deep understanding of the needs of Elgin residents, our team brings unmatched value, efficiency, and professionalism to every job.

Whether you need to install a new central air conditioner, replace an aging furnace, service a tankless water heater, or improve your home's air quality, RJ's delivers certified, dependable, and responsive HVAC service in Elgin, IL. We're available 24/7 for emergencies and always provide upfront pricing with no surprises.

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
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Proudly Installing
Equipment From

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

Comprehensive HVAC Services in Elgin, IL

Heating Services in Elgin, IL

  • Furnace Installation & Replacement – We install energy-efficient Armstrong and Ducane furnaces built to withstand Elgin winters.
  • Furnace Repair & Service – Our experienced techs quickly diagnose and fix all furnace issues, restoring warmth and comfort.
  • Furnace Maintenance & Tune-Ups – Regular checkups improve efficiency, reduce breakdowns, and extend system life.
  • Boiler Installation & Replacement – We install industry-leading Burnham and Weil-McLain boiler systems, ideal for homes using radiant or hydronic heat.
  • Boiler Repair & Maintenance – RJ's technicians provide full diagnostics, repairs, and routine maintenance to keep your boiler safe and efficient.
  • Ducted Heat Pump Installation & Replacement – Dual-purpose heating and cooling systems from trusted brands—perfect for year-round comfort in Elgin.
  • Ducted Heat Pump Repair & Maintenance – We service Armstrong and Ducane systems with precision and care, keeping your heat pump running smoothly.
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24/7 Emergency Heating Repair Available

Cooling Services in Elgin, IL

  • Central AC Installation & Replacement – We install Armstrong and Ducane air conditioning systems designed for maximum efficiency and cooling power.
  • Central AC Repair & Service – Quick, reliable fixes when your AC fails—especially during hot Elgin summers.
  • Central AC Maintenance & Tune-Ups – Preventative care keeps your system running quietly and efficiently all season long.
  • Mini-Split Installation & Replacement – Daikin ductless mini-split systems offer zoned cooling for homes without traditional ductwork.
  • Mini-Split Repair & Service – We diagnose and repair all major brands.
  • Mini-Split Maintenance & Tune-Ups – Keep your mini-split system efficient with regular servicing.
  • MagicPak Installation & Replacement – Popular for Elgin condos and multifamily buildings, MagicPak is a compact all-in-one HVAC solution.
  • MagicPak Repair & Maintenance – From filter changes to complex repairs, RJ's handles every aspect of MagicPak system care.
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Fast Response for All Cooling Emergencies

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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Indoor Air Quality Services in Elgin, IL

Elgin's varying humidity and urban air quality can take a toll on your health and comfort. RJ's offers indoor air quality products and services to ensure the air inside your home is as clean and comfortable as possible.

  • Air Filtration & Air Cleaners – Aprilaire whole-home systems remove allergens, smoke, and particulates from your air.
  • UV Lights – These devices kill bacteria and mold spores in your HVAC system before they circulate.
  • Humidity Control – Aprilaire humidifiers and dehumidifiers help regulate indoor moisture for better comfort and HVAC performance.
Improve Your Air Quality

Breathe Cleaner, Healthier Air Today

Water Heater Services in Elgin, IL

In addition to HVAC, RJ's Heating, Cooling & Water Heaters is your trusted source for water heater services in Elgin, IL, whether you're using a traditional tank or a tankless model.

  • Tankless Water Heater Installation & Replacement – Featuring State tankless systems that provide energy-efficient, endless hot water.
  • Tankless Repair & Maintenance – Our descaling and maintenance services ensure long life and performance.
  • Tank Water Heater Installation & Replacement – Reliable hot water from trusted State-brand tanks with proper sizing for your home.
  • Tank Repair & Service – From igniter issues to leaking tanks, we handle all repairs quickly and affordably.
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Same-Day Water Heater Repairs Available

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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Ductwork & Custom Fabrication in Elgin, IL

Whether you're building a new home or updating an old one, proper ductwork makes all the difference. Our team fabricates and installs ductwork in-house for precision airflow and fast turnaround.

  • Ductwork Installation – We custom-design duct systems for maximum airflow and system performance.
  • Duct Repair & Sealing – We identify and fix leaks that can waste energy and reduce comfort.
  • Sheet Metal Fabrication – Precision-built components made to match your exact system specifications.

Light Commercial HVAC Services in Elgin, IL

We provide light commercial HVAC services for small businesses, retail spaces, and professional offices throughout Elgin.

  • RTU Installation & Repair (Up to 25 Tons) – Reliable rooftop unit services tailored to your building's layout and load requirements.
  • Commercial Boiler Systems – We install and maintain commercial boilers for radiant heating and hot water.
  • Preventative Maintenance Plans – Reduce downtime and energy waste with routine service from our expert commercial team.
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.

872-274-4502   Schedule Today
Our Team Is Here To Help You Our Team Is Here To Help You Our Team Is Here To Help You
The Answers to Your FAQ's

Frequently Asked Questions – HVAC Services in Elgin, IL

Yes, RJ's Heating, Cooling & Water Heaters proudly offers 24/7 emergency HVAC repair in Elgin, IL. Whether it's a failed furnace in the dead of winter or an AC breakdown during a summer heatwave, our technicians are on-call to restore comfort fast.

We recommend twice-yearly HVAC maintenance in Elgin — once in spring for your cooling system, and once in fall for heating. Seasonal tune-ups help avoid surprise repairs and keep your system running efficiently throughout Elgin's changing seasons.

AC repair costs in Elgin can vary based on the issue and system type, but most homeowners spend $150 to $600. RJ's offers clear, upfront pricing and diagnostics before any work begins, so there are no surprises.

Absolutely. We install Daikin ductless mini-split systems throughout Elgin, which are ideal for zoned comfort, additions, or homes without ductwork. These systems are energy-efficient and customizable for each space.

Yes, we specialize in maintaining and repairing both modern and legacy HVAC systems, including older Burnham and Weil-McLain boilers found in many Elgin homes. Whether you need parts, cleaning, or diagnostics, we can help.

Our Comfort Club is a year-round HVAC maintenance plan for Elgin homeowners. Members receive two system tune-ups per year, no diagnostic fees, priority service, and discounts on repairs—helping you avoid costly breakdowns and unexpected expenses.

Upgrading your system can improve indoor comfort, reduce energy bills, and increase property value. New HVAC installations are also eligible for rebates and incentives in Illinois. Our team helps you choose the right Armstrong, Ducane, or MagicPak system for your needs.

Yes. We offer flexible financing options through Service Finance, including low-interest and zero-interest promotional plans. Financing makes it easier for Elgin homeowners to manage HVAC installations or large repairs without financial stress.

Starting in 2025, older AC systems using R-410A refrigerant will be phased out in favor of newer, eco-friendly refrigerants like R-454B. In Elgin, that means if your system is 10–15 years old, you may want to start planning for an upgrade. RJ's can help you understand your options and future-proof your comfort.

Yes. RJ's provides full installation, repair, and maintenance services for MagicPak all-in-one systems, which are common in multi-family units, condos, and small commercial buildings throughout Elgin.

We install State tank and tankless water heaters, offering both traditional and energy-efficient on-demand options. Whether you need consistent hot water or a space-saving upgrade, RJ's has a solution for your Elgin home.

We serve all areas of Elgin, including downtown, Wing Park, Valley Creek, Bowes Creek, West Elgin, and nearby neighborhoods. Whether you're in a historic home or a newer development, RJ's is your local HVAC expert.

Yes. RJ's provides light commercial HVAC services for small businesses, retail buildings, and professional spaces across Elgin. We install and service RTUs up to 25 tons, boilers, and indoor air quality systems to meet business needs.

Simply call our office or use the contact form on our website. Whether you need a new system quote, emergency HVAC repair, or seasonal maintenance in Elgin, we're ready to help.

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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Let's Get Started with Expert HVAC Service in Elgin, IL

When it comes to dependable HVAC service in Elgin, IL, RJ's Heating, Cooling & Water Heaters is the trusted name homeowners and business owners rely on. With more than 20 years of hands-on experience, our team delivers professional heating, cooling, air quality, and water heating services tailored to Elgin's unique homes, buildings, and climate conditions. From 24/7 emergency response to long-term system upgrades, we're here to keep your comfort on track year-round.

We specialize in a full range of HVAC installation, repair, and maintenance services including central AC systems, furnaces, boilers, ducted heat pumps, MagicPak units, and ductless mini-splits. Our team installs and services premium brands like Armstrong, Ducane, Burnham, Weil-McLain, Daikin, MagicPak, and State water heaters. Whether you're upgrading an old unit or need an urgent fix during peak season, we'll arrive on time and ready to deliver results you can count on.


Our expertise doesn't stop with temperature control. RJ's also offers advanced indoor air quality solutions, including whole-home air purifiers, UV lights, and Aprilaire humidity control systems—ideal for improving the air in your Elgin home. We also provide expert ductwork and custom sheet metal fabrication, ensuring your HVAC system is operating at maximum efficiency, even in older or custom-built homes.

We're proud to support homeowners and businesses throughout the city of Elgin, IL, from historic districts to new subdivisions. RJ's also serves surrounding communities in Kane County with fast response times and localized knowledge of building codes, energy rebates, and seasonal challenges. Our light commercial HVAC services support small businesses with rooftop units, commercial boiler installations, and ongoing maintenance agreements to prevent costly downtime.

With flexible financing options, a value-packed Comfort Club Maintenance Plan, and a reputation for transparent, ethical service, RJ's Heating, Cooling & Water Heaters is your go-to partner for reliable comfort solutions in Elgin.

Ready to take the next step? Contact RJ's Heating, Cooling & Water Heaters today to schedule your HVAC service in Elgin, IL, and discover the difference of working with a professional, customer-focused team that gets the job done right.

Let's get started.

872-274-4502   Schedule Today

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