Furnace Replacement & Installation

Upgrade to reliable, energy-efficient heat with a furnace
selected for your home, comfort needs, and budget.

Homeowner enjoying the comfort provided by a newly installed furnaceProfessional Furnace Replacement Across Chicagoland

When winter arrives in northern Illinois, dependable heat is essential. NextGen Mechanical provides professional furnace replacement and installation for homeowners throughout Chicagoland. We help you select a furnace that fits your home, comfort needs, efficiency goals, and budget.

Our experienced technicians evaluate your current heating system, explain your equipment options, and install your new furnace with careful attention to safety, comfort, and long-term performance.

Ready to upgrade your heating system? Request a free furnace replacement estimate or call 224-539-6895.

Find the Right Furnace for Your Home

A successful furnace replacement starts with choosing equipment that fits your home. Simply replacing an older furnace with a similar model may not produce the best results.

NextGen considers several factors before recommending a new system, including:

  • The size and layout of your home
  • Insulation, windows, and potential heat loss
  • The condition and capacity of your ductwork
  • Your existing heating and cooling equipment
  • Rooms with uneven temperatures or airflow concerns
  • Your energy-efficiency goals
  • Your budget and financing preferences

We explain the available options clearly so you can make an informed decision without unnecessary pressure.

Compare Your Furnace Options

Depending on your home and heating needs, your options may include:

Single-Stage Furnaces

Single-stage furnaces operate at full capacity whenever your home needs heat. They provide reliable, straightforward heating and typically have a lower upfront equipment cost.

Two-Stage Furnaces

Two-stage furnaces can operate at a lower output during milder weather and increase their output when more heat is needed. This can provide more consistent temperatures, quieter operation, and improved efficiency.

Variable-Speed Systems

Variable-speed systems adjust airflow based on your home’s comfort needs. They can provide more consistent temperatures, quieter operation, and improved circulation throughout the home.

High-Efficiency Furnaces

High-efficiency furnaces are designed to convert more of their fuel into usable heat. Depending on your current equipment and how frequently you use your heating system, upgrading may help reduce wasted energy and improve comfort.

NextGen will help you compare the benefits, efficiency ratings, and expected performance of the systems appropriate for your home.

Why Proper Furnace Sizing Matters

A furnace needs to be properly sized to heat your home effectively and efficiently.

An oversized furnace may heat the home too quickly and cycle on and off frequently. This can contribute to uneven temperatures, unnecessary equipment wear, and reduced efficiency.

An undersized furnace may run continuously and still struggle to keep your home comfortable during the coldest Chicagoland weather.

NextGen evaluates your home’s heating needs before recommending equipment. Our goal is to install a furnace that provides dependable, even heat without unnecessary energy use.

What Affects Furnace Replacement Cost?

The cost of replacing a furnace depends on more than the equipment itself. Factors that can affect your estimate include:

  • Furnace size and heating capacity
  • Energy-efficiency rating
  • Single-stage, two-stage, or variable-speed operation
  • The condition of your existing ductwork
  • Venting or gas-line modifications
  • Electrical or thermostat upgrades
  • Equipment location and installation access
  • Removal and disposal of the existing furnace

After evaluating your home, NextGen provides a detailed estimate outlining the recommended equipment and installation requirements.

Request a Free Furnace Replacement Estimate

What Is Included With Furnace Installation?

Our furnace replacement process is designed to make upgrading your heating system as straightforward as possible.

In-Home Assessment

We inspect your current heating system, review the visible ductwork, discuss comfort concerns, and learn more about your efficiency goals and budget.

Equipment Recommendations

We help you compare appropriate furnace options based on efficiency, features, expected performance, warranty coverage, and cost.

Removal and Professional Installation

Our team disconnects and removes the existing equipment before installing your new furnace according to manufacturer requirements and applicable codes.

System Testing

We test the furnace, thermostat, airflow, safety controls, and overall system operation before completing the installation.

Homeowner Walkthrough

We show you how to operate your new furnace and thermostat, explain basic maintenance needs, and answer your questions.

Cleanup

Our installation team respects your home, removes the old equipment and related debris, and cleans the work area when the project is finished.

Should You Replace Your Furnace and Air Conditioner Together?

Your furnace and air conditioner share several indoor components. If both systems are aging, replacing them together may provide better equipment compatibility and help you avoid duplicated installation work later.

That does not mean both systems always need to be replaced at the same time. NextGen will evaluate the age and condition of your existing equipment and explain whether coordinated replacement makes sense for your home.

Learn more about our air conditioner replacement and installation services.

Flexible Furnace Financing

A new furnace is an important investment in your home. To make replacement more manageable, NextGen offers flexible financing options through FTL Finance, with available terms ranging from 3 to 120 months for qualified customers.

Our team will also explain the applicable manufacturer warranty, registration requirements, and available workmanship coverage before your installation is finalized.

Ask us about current manufacturer or utility incentives that may be available for qualifying equipment.

Why Choose NextGen Mechanical?

NextGen Mechanical is a locally owned and operated HVAC company serving homeowners throughout Chicagoland. We combine personalized recommendations with professional installation and clear communication from the initial estimate through the final system walkthrough.

When you choose NextGen, you receive:

  • Recommendations based on your home and comfort needs
  • Clear, detailed project estimates
  • EPA-certified HVAC technicians
  • Professional equipment installation and testing
  • Free furnace replacement estimates
  • Flexible financing options
  • Support from a local, family-run company
  • Service backed by excellent local customer reviews

NextGen Mechanical has also earned an A+ rating from the Better Business Bureau, reflecting our commitment to honest service, quality workmanship, and customer satisfaction.

Frequently Asked Questions About Furnace Replacement

How long does furnace replacement take?

Many standard furnace replacements can be completed in one day. Projects involving ductwork, venting, electrical, or gas-line modifications may require additional time. We will explain the anticipated schedule before work begins.

How do you determine the correct furnace size?

We consider factors such as your home’s size, layout, insulation, windows, ductwork, and heating demands. Proper sizing helps the furnace operate efficiently while maintaining consistent comfort.

What furnace efficiency rating should I choose?

The right efficiency level depends on your home, existing system, budget, and long-term goals. NextGen will explain the available ratings and help you evaluate the potential benefits of each option.

Will my existing ductwork work with a new furnace?

In many homes, the existing ductwork can continue to be used. However, damaged, leaking, restricted, or improperly sized ducts can affect the performance of a new furnace. We will evaluate the visible ductwork as part of our recommendation.

Can I replace my furnace without replacing my air conditioner?

Often, yes. However, equipment age, compatibility, and the condition of shared components should be considered. We will explain your options after inspecting the existing system.

Do you offer financing for furnace replacement?

Yes. Flexible financing options are available for qualified customers through FTL Finance.

Does a new furnace include a warranty?

New equipment generally includes a manufacturer warranty, with coverage varying by product. We will explain the applicable warranty and registration requirements before installation.

Request a Free Furnace Replacement Estimate

Prepare your home for the next Chicagoland winter with a furnace selected for reliable, energy-efficient performance.

Contact NextGen Mechanical to schedule an in-home consultation and receive a free furnace replacement estimate.

Request a Free Furnace Estimate or call 224-539-6895.

Questions? Contact Us Today!

Peace of Mind Included
with Every Service

  • Emergency Services Available 24/7
  • HVAC Technicians are EPA-Certified
  • 5-Star BBB Accreditation
  • BBB Complaint Free Award Winner (2025)
  • Free Quotes
  • Financing Available
310 Busse Hwy #388 Park Ridge IL 60068 US
(224) 539-6895
5/5 based on 9 reviews
Our Client Testimonials

What Your Neighbors Are Saying

NextGen is great!

They helped me install all new appliances in my condo (water heater, furnace, and AC unit). Jason was exceptional as well as his team. During the first site visit, Jason sent me a detailed outline of each item, labor costs, and communicated frequently to address all of my questions - even educate me. I highly recommend NextGen Mechanical for your residential appliance needs.

icon

Very responsive

What a great experience. I had NextGen come over for fall cleaning and Jason took a look at our boiler and unique heating system. We have had multiple companies (large and small) walk through and tell me we were fine, but he was able to diagnose and properly propose a solution for the heating of my basement as well! Very responsive, very professional, and highly-skilled. I will be recommending NextGen to all my friends and family.

icon

I highly recommend Jason and NexGen Mechanical

Jason did a great job repairing my furnace. He came out and found multiple problems with my furnace. He ordered the parts and made the repairs within a couple days at a very fair price.

icon

I highly recommend NextGen Mechanical

After several quotes, I chose NextGen Mechanical to replace my air‑conditioner compressor and coil. Joe beat competitors’ prices, offered financing, and the installation crew was timely, courteous, and neat. I highly recommend NextGen Mechanical.

icon

Great service and support

Our house stayed cool all summer thanks to NextGen. They even reminded me when to change my filter!

icon

So Grateful

Literally this was such a great experience! They’re so kind, came right out, We’re so honest and guiding and I’m really grateful I chose this company.

icon

Quick and Efficient Service

When my heat refused to come on I called Next Gen after receiving a referral from a friend who is an electrician. They sent a technician the next day and the problem was taken care of quickly and efficiently.

icon

Clean and Neat

We had our boilers cleaned and checked to prepare for winter. NextGen arrived on time and did a thorough job. Left the area clean and neat when he was done.

icon

Quick and Polite

My furnace was not working properly and NextGen Mechanical was able to quickly fix it. The technician was very knowledgeable and polite. I highly recommend them.

icon
service areas