Furnace Installation & System Replacement
Efficient heating throughout winter.
- Emergency Service
- Est. 1990
- Family-Owned for 3 Generations
- Father & Son Operated
Why Illinois Homeowners Choose AccuMax for Furnace Installation
Ready to upgrade to a high-efficiency furnace? Modern furnaces heat your home more evenly, use significantly less gas, and often qualify for utility rebates. AccuMax, Inc. installs Armstrong Air furnaces with factory warranty, handles rebate paperwork, and backs all installations with extended membership plan protection. Whether you're replacing an aging system, upgrading from a failing furnace, or installing in a new home, we handle professional sizing, installation, and testing across Naperville, Downers Grove, Plainfield, Batavia, and Oak Brook.
Expert Heating Load Calculation for Illinois Winters
Furnace sizing is critical—too small and your home won't stay warm, too large and the system cycles inefficiently. We measure your home's square footage, evaluate insulation, assess ductwork capacity, and calculate winter heating load. A correctly sized furnace delivers reliable warmth without energy waste.
Armstrong Air ProTeam Dealer Expertise
As an Armstrong Air ProTeam certified dealer, we specialize in furnace installation with factory-backed warranty and genuine parts access. Our team understands proper installation details—burner setup, gas line sizing, thermostat placement, ductwork configuration—that ensure your new furnace performs at rated efficiency.
High-Efficiency Furnaces Cut Heating Bills
Modern furnaces with AFUE (Annual Fuel Utilization Efficiency) ratings of 90–95% use dramatically less gas than older systems. A 20-year-old furnace at 70–75% efficiency compared to a new 95% AFUE unit means 20–30% lower heating bills every winter. That savings often recovers the installation investment within 5–10 years.
Rebates and Financing Remove Cost Barriers
New high-efficiency furnaces often qualify for manufacturer rebates, utility company incentives, and potential tax credits. We research all available rebates for your equipment choice and handle the paperwork so you capture savings. Service Finance financing spreads installation costs across 12–60 months.
Explore Your Furnace Options
Ready to compare furnace installation with repair or maintenance? See all the ways we support your heating system.
Request Your Installation Consultation
How Furnace Installation Works at AccuMax
Home Consultation and Heating Load Assessment
We visit your home to assess your heating needs. We measure square footage, evaluate insulation quality, inspect existing ductwork, and discuss your comfort preferences and current heating costs. This data lets us calculate winter heating load and size a furnace that delivers reliable warmth without oversizing (which wastes energy).
- Professional in-home heating assessment
- Measurement of heated square footage and room layout
- Evaluation of insulation in walls, attic, and basement
- Ductwork inspection for capacity, condition, and sizing
- Discussion of current heating costs and comfort concerns
- Detailed furnace sizing calculation based on heating load
Equipment Selection and Efficiency Comparison
We present furnace options ranging from standard to high-efficiency models. We explain AFUE (Annual Fuel Utilization Efficiency) ratings, showing how higher-efficiency units cost more upfront but save thousands on heating bills over their lifetime. We research available manufacturer rebates, utility incentives, and financing options specific to your selection.
- Discussion of available furnace brands and models
- Explanation of AFUE ratings and efficiency differences
- Comparison of first-year installation cost vs. long-term savings
- Identification of manufacturer rebates and utility incentives
- Financing option comparison and promotional rates
- Total cost comparison across equipment choices
Scheduling, Permits, and Equipment Ordering
Once you approve your selection and financing, we schedule installation at your convenience. We order equipment, apply for any required permits, and prepare our installation team with your home's specific details—ductwork configuration, gas line location, electrical capacity.
- Service Finance financing application and approval
- Equipment ordering with delivery scheduling
- Permit application and approval (if required)
- Installation date scheduling convenient for you
- Site preparation and final installation plan walkthrough
Professional Furnace Installation
Our certified installation team removes your old furnace safely and installs your new system professionally. Work includes burner assembly setup, heat exchanger inspection, gas line connections with pressure testing, ductwork connections, electrical work, thermostat installation, and control system programming. Installation typically takes 4–6 hours.
- Safe removal and proper disposal of old furnace
- Professional installation of new furnace unit
- Gas line connection with pressure and leak testing
- Ductwork connection and airflow optimization
- Electrical connection and safety verification
- Burner setup and combustion testing
- Thermostat installation and control system programming
Testing, Commissioning, and Homeowner Training
We test the new furnace thoroughly in heating mode to confirm proper operation, efficiency, and safety. We measure temperature rise, verify combustion quality, test all safety systems, and ensure the thermostat controls heating correctly. We show you how to operate the system, explain maintenance, review the warranty, and discuss Maintenance Membership Plan.
- Full-system heating performance testing
- Temperature rise measurement and verification
- Combustion quality and efficiency verification
- Safety system testing (limit control, gas valve, ignition)
- Thermostat operation and programming training
- Filter replacement and maintenance education
- Warranty documentation review and explanation
- Maintenance Membership Plan benefits discussion
Affordable Financing & Rebates on Your New Furnace
A new furnace is a major investment in your home's comfort — and it shouldn't strain your budget. AccuMax, Inc. offers flexible financing through Service Finance Company and helps you capture every manufacturer and utility rebate your new high-efficiency furnace qualifies for.
Flexible Financing Through Service Finance
With approved credit from Service Finance Company, you'll enjoy:
Replace or upgrade your HVAC system without the sticker shock. Break the cost into affordable monthly payments that fit comfortably in your budget.
What you see is what you pay. Your financing terms are laid out clearly from day one, with no surprise charges down the road.
Check your balance, view statements, and make payments anytime through Service Finance's secure online portal — no phone calls or paperwork required.
Qualified homeowners may be eligible for promotional rates, including low-interest and deferred-payment options. Ask us about current offers when you schedule your estimate.
Questions about financing? Call us at (630) 800-1598 and we'll help you find the right option before you commit.
Rebates Available on Heat Pump Systems
Aurora homeowners upgrading to a qualifying heat pump system may be eligible for up to $2,000 in available rebates. Rebate programs and eligibility requirements change regularly based on manufacturer and utility incentive schedules. Contact AccuMax, Inc. early in your project — we'll help you identify what's currently available for your home and make sure you capture every rebate dollar before the opportunity closes.
Keep Your New Furnace Running at Peak Efficiency
A new furnace is an investment worth protecting. An AccuMax, Inc. maintenance plan keeps your new heating system at peak efficiency, protects your warranty, and catches small issues before they become costly repairs.
Take $40 off a second plan if you have another system. Cancel any time — the unused portion of your dues is refunded.
Gold New System Protection Plan
New Equipment Plan
Available only on new systems and equipment installed by AccuMax, Inc.
The Gold Plan is built specifically for customers who have purchased a new furnace and air conditioning system from AccuMax, Inc. It protects your investment, maximizes equipment life, and keeps your new system performing at peak efficiency for the long haul.
- 2 visits per year — your furnace in the fall, your A/C in the spring
- Your new equipment labor warranty is extended to a full 10 years
- Annual maintenance is required to maintain coverage
- Does not include filters or humidifier service
Our HVAC Specials & Seasonal Offers
AccuMax, Inc. regularly offers seasonal specials and savings for homeowners in Aurora, Naperville, Downers Grove, and throughout our service area. Whether you're scheduling a tune-up, planning a system replacement, or looking to improve your indoor air quality, there's often a current offer that can help you save.
$149 Value Menu
Add any service from our Value Menu for just $149 when we're already at your home. Every option is one flat price — see how much you save compared to regular rates. Ask your technician about available add-ons at your next visit.
See the Value MenuOriginal Price
Questions About Furnace Installation
Furnace sizing depends on your home's heating load, which is calculated from square footage, insulation quality, climate, and other factors. We perform this calculation during the home consultation. An undersized furnace won't heat adequately. An oversized furnace cycles on and off too much, wasting energy. Proper sizing is essential.
Installation costs vary based on furnace efficiency level, whether ductwork modifications are needed, and labor. A quality high-efficiency furnace installation can be a significant investment, but rebates, financing, and 20–30% lower heating bills often make it economical. We provide detailed quotes during the consultation.
Absolutely. A modern 95% AFUE furnace uses significantly less gas than an older 70–80% efficient unit for equivalent heating. Most homeowners see 20–30% lower heating costs with a new high-efficiency furnace, especially if replacing a furnace older than 15 years. We'll estimate your home's specific savings during the consultation.
Not necessarily. We inspect existing ductwork to confirm it's suitable for the new furnace. If ductwork is in good condition and properly sized, we'll use it. If it's leaky, undersized, or has major damage, we'll recommend repairs or replacement and discuss costs.
We remove and properly dispose of old equipment according to environmental regulations. Metal and other recyclable components may be salvaged. We handle all removal and disposal, so you don't need to arrange anything.
Often yes. Many new high-efficiency furnaces qualify for manufacturer rebates and utility company incentives. We research all available rebates for your equipment choice and handle the paperwork so you capture the savings. Some installations may also qualify for federal tax credits—we'll discuss this during consultation.
Furnace Installation Across Aurora & the Western Chicago Suburbs
AccuMax, Inc. installs new furnaces throughout Aurora and the western suburbs — sizing each system correctly for Illinois winters, coordinating rebates, and backing every installation with membership plan protection.
Additional Communities Served
Don't see your city listed? We serve many additional communities throughout the western suburbs — contact us to confirm availability in your area.
Complete Furnace System Support
Installation is the beginning. We support your heating system throughout its life.
Install a High-Efficiency Furnace for Winter Comfort
A new high-efficiency furnace replaces an old, inefficient system with modern technology that heats your home more evenly while cutting heating bills 20–30% every winter. The investment pays for itself through energy savings, and a properly installed furnace typically lasts 20+ years with regular maintenance.
Start with a professional home consultation. We'll assess your heating needs, calculate the right furnace size, present equipment options, research available rebates, and provide a detailed quote. Once you approve the selection and financing, we handle professional installation, thorough testing, training, and warranty details. Every installation is backed by our membership plan protection.
Family-Owned Since 1990
Three generations of HVAC expertise rooted in Aurora
Armstrong Air ProTeam Dealer
Factory-trained and certified on the equipment we install
Emergency Service Available
Weekends and after-hours when you need us most
Full-Service HVAC
Heating, cooling, IAQ, water heaters, and light commercial RTUs
Community-First Values
Locally based, personally accountable, invested in Aurora