Furnace Installation & Replacement — Single-Day, Code Compliant
Replacing a furnace is one of the most important investments a homeowner makes. NorTech Services performs full heat load calculations, installs properly sized systems from all major manufacturers, and backs every installation with a 1-year labor warranty — so your new furnace is built to last from day one.
Request a Free QuoteEvery furnace installation is backed by NorTech’s 1-year labor warranty. If any issue returns within 12 months, we come back and fix it.
15% Off Your First Furnace Installation
New customers save on any furnace installation or replacement service. Mention the code when you call or enter it at checkout.
Professional Furnace Installation & Replacement Nationwide
A furnace that’s the wrong size for your home will underperform for its entire lifespan — no matter how good the brand is. Oversized furnaces short cycle, create humidity imbalances, and wear out compressors and heat exchangers prematurely. Undersized units run nonstop and can’t keep up on the coldest nights in Denver, Charlotte, Nashville, or Raleigh. NorTech Services performs a full heat load calculation before recommending any system, installs gas and electric furnaces from all major manufacturers, handles venting, gas line connections, and electrical wiring — and completes most residential installations in a single day. Every install is covered by a 1-year labor warranty on top of the manufacturer equipment warranty.
Signs It’s Time for a New Furnace
Repairing an aging furnace makes sense up to a point. These signals indicate you’re past that point — and that a replacement will cost you less in the long run than continuing to repair.
Furnace Is 15–20 Years Old
Most furnaces have a functional lifespan of 15 to 20 years. Beyond that, efficiency drops and major components begin failing in sequence. A modern high-efficiency replacement will cost less to operate every month.
Repair Costs Are Piling Up
One repair per season is one thing. When you’re seeing two or three repairs per year, multiple components are aging out simultaneously. The money going into repairs is better spent on a replacement with a fresh warranty.
AFUE Below 80%
Older furnaces often operate at 60–70% AFUE — meaning 30–40% of the fuel you pay for is wasted. Modern systems run at 80–98% AFUE. The monthly savings on a high-efficiency replacement add up quickly.
Rising Heating Bills
If your heating costs have increased noticeably over the past two or three winters without a change in usage or fuel prices, the furnace is losing efficiency and working harder than it should.
Cracked Heat Exchanger
A cracked heat exchanger is a safety hazard — carbon monoxide can enter the airstream. In most cases, the repair cost approaches or exceeds replacement cost, making a new furnace the clear right call.
Uneven Heat or Cold Spots
When some rooms are comfortable and others stay cold, the furnace may be too old to deliver consistent airflow or may have been improperly sized from the start. A properly sized replacement resolves both issues.
Furnace Installation & Replacement Services
Whether you’re replacing a failed unit on short notice or planning a proactive upgrade before winter, NorTech handles the full scope of residential furnace installation.
Gas Furnace Installation
Full installation of natural gas and propane furnaces including venting, gas line connections, electrical wiring, and thermostat setup.
Gas furnaces remain the most common residential heating system in the US. We install standard and high-efficiency models with proper venting — two-pipe sealed combustion for 90%+ AFUE systems.
- Heat load calculation & system sizing
- Gas line inspection & connection
- Flue & venting installation
- Electrical wiring & disconnect
- Thermostat setup & calibration
- Full system startup & safety test
Electric Furnace Installation
Installation of electric furnaces and air handlers for homes without gas service or as part of a heat pump system upgrade.
Electric furnaces are a clean, reliable option for homes without gas service and pair well with heat pump systems. We handle panel capacity verification, wiring, and full commissioning.
- Electrical panel capacity check
- 240V circuit installation where needed
- Air handler & furnace installation
- Ductwork connection & sealing
- Thermostat & controls setup
- Old unit removal & haul-away
Choosing the Right AFUE Rating
AFUE — Annual Fuel Utilization Efficiency — measures what percentage of fuel your furnace converts to usable heat. The higher the rating, the lower your monthly heating bill. The right choice depends on your climate, how long you plan to stay in the home, and your current fuel costs.
Standard
80% AFUE
Meets federal minimum requirements. Lower upfront cost. Best fit for mild climates with short heating seasons or shorter ownership horizons where the efficiency premium won’t be recovered.
High Efficiency
90–95% AFUE
Two-stage or modulating burner with sealed combustion venting. Meaningfully lower operating costs. Best balance of upfront investment and long-term savings for most climates.
Premium
96–98% AFUE
Maximum efficiency with variable-speed blower and modulating gas valve. Lowest operating costs, quietest operation, best humidity control. Ideal for cold climates and long-term homeowners.
What’s Covered in Every NorTech Furnace Install
No line-item surprises. Every furnace installation quote from NorTech covers the full scope of work required to complete the job correctly.
Heat Load Calculation
Full Manual J calculation to determine the correct system capacity for your home before any equipment is ordered.
Equipment & Labor
Furnace unit, all installation labor, venting components, and gas or electrical connections — included in the quote.
Old Unit Removal
Existing furnace disconnection and haul-away are included. We leave the installation site clean.
Code-Compliant Installation
Every installation is performed to current local and national code standards. Permitting requirements vary by municipality and are the homeowner’s responsibility.
Startup & Safety Test
Full system commissioning including combustion analysis, carbon monoxide test, and thermostat calibration before we leave.
Warranty Registration
We register the manufacturer equipment warranty on your behalf and provide documentation of the 1-year labor warranty.
All Major Furnace Brands Installed
NorTech installs furnaces from all major residential manufacturers through authorized distribution channels to ensure full warranty validity.
How Much Does Furnace Installation Cost?
Furnace installation costs vary based on system size, efficiency rating, fuel type, venting requirements, and your location. NorTech provides a written upfront quote covering all equipment, labor, and haul-away before any work is scheduled. Use code NORTECH15 to save 15% on your first service.
In-Home Assessment
Heat load calculation, venting evaluation, and system recommendation before a quote is issued.
Equipment & Labor
Full installation quote includes furnace unit, all labor, venting, gas or electrical connections — no hidden costs.
Old Unit Haul-Away
Existing furnace disconnection and haul-away are included in every installation quote.
Rebate Assistance
High-efficiency furnaces often qualify for utility and manufacturer rebates. We identify available programs for your area.
What Homeowners Say About NorTech Furnace Installation
“NorTech replaced our 22-year-old furnace in one day. Crew was on time, cleaned up after themselves, and walked us through the new thermostat settings before leaving. Heating bill dropped the first month.”
“They did the load calculation before recommending a system — nobody else I called even mentioned it. Ended up with a smaller unit than quoted elsewhere and it heats the house perfectly. Night and day difference.”
“Solid work overall. The crew showed up on time and the install was clean and efficient. New system has been running perfectly since day one. Would use again.”
“Our furnace failed mid-January. NorTech had a new 96% AFUE Lennox installed within 48 hours of our call. Considering the timing, that was impressive. The install crew worked fast and professionally.”
“Appreciated the honesty during the assessment. They told me my ductwork had some leaks that would reduce the new furnace’s efficiency if not addressed. Fixed the ducts at the same time. Smart call.”
“Good experience overall. The crew was professional and the install was clean. Only knock is communication during scheduling could be tighter — but once they were on site it was seamless.”
Furnace Installation — Frequently Asked Questions
Answers to what homeowners ask most before scheduling a furnace installation or replacement.
Most residential furnace replacements are completed in 4 to 8 hours. New installations requiring venting modifications, gas line work, or ductwork changes may take longer. NorTech crews arrive with equipment staged and complete the majority of installs in a single day.
Proper furnace sizing is based on a heat load calculation that accounts for your home’s square footage, insulation, ceiling height, window area, climate zone, and existing ductwork. An oversized furnace short cycles and wears out faster. An undersized unit runs constantly and can’t maintain temperature on the coldest days. NorTech performs a full load calculation before recommending any system.
AFUE stands for Annual Fuel Utilization Efficiency and measures how efficiently a furnace converts fuel to heat. An 80 AFUE furnace converts 80% of fuel to heat and exhausts 20%. A 96 AFUE furnace converts 96% — significantly reducing heating costs. Higher AFUE systems typically cost more upfront but save money every month in climates with long heating seasons.
If your furnace is over 15 years old, has an AFUE below 80%, requires frequent repairs, or is driving up your heating bills, proactive replacement before a failure saves you from an emergency install in the middle of winter. The cost difference between a planned replacement and an emergency one can be significant.
Permit requirements for furnace installation vary by municipality and are the homeowner’s responsibility. NorTech installs all systems to current local and national code standards. We recommend checking with your local building department before scheduling if you are unsure of your area’s requirements.
Yes, in most cases. The furnace and air conditioner share the air handler and ductwork but are separate systems. If your AC is in good condition, replacing only the furnace is a reasonable choice. Our technicians assess both systems and give you an honest recommendation.
Furnace installation costs vary based on system size, efficiency rating, fuel type, venting requirements, and your location. NorTech provides a written upfront quote covering all equipment, labor, and haul-away before any work is scheduled. Use code NORTECH15 for 15% off your first service.
Yes. Every furnace installation performed by NorTech Services is backed by a 1-year labor warranty in addition to the manufacturer equipment warranty. If any installation-related issue arises within 12 months, we return and resolve it at no additional labor charge.
Furnace Installation Available Nationwide
NorTech installs furnaces across major metros nationwide. View our full service territory.
Ready for a New Furnace? Let’s Get It Sized and Quoted.
Get a free in-home assessment and written installation quote from a certified NorTech technician. No pressure, no oversizing — just the right system for your home. Use code NORTECH15 for 15% off.
