Furnace Installation in Metro Detroit — Sized Right, Priced Honestly
Replacing a furnace is one of the bigger purchases you'll make for your home. We think you deserve a straight answer on cost, a system that actually fits your house, and a team that won't push you toward something you don't need.
What a New Furnace Costs in Metro Detroit — Before You Call Anyone
A complete gas furnace replacement in Southeast Michigan typically runs between $4,000 and $9,500 in 2026, with the Metro Detroit average landing around $4,295. That range reflects real variables: your home's square footage, the efficiency rating you choose, whether ductwork modifications are needed, and the brand and model selected.
We give you a firm, itemized quote before any work begins. The number you see is the number you pay.
If cost is a concern right now, our financing options cover most installations — with approvals for credit scores as low as 540 and an 18-month deferred interest plan available. You can also reduce your out-of-pocket cost through DTE Energy rebates of $100–$300 on qualifying high-efficiency systems. We walk you through the rebate process so you don't leave money on the table.
Why Proper Sizing Matters More Than the Brand You Pick
The single most common furnace installation mistake in this industry is oversizing. A system that's too large for your home short-cycles — it fires up, overheats the space, shuts off, and repeats — which drives up your energy bill, shortens equipment life, and leaves rooms feeling uneven.
We size every installation using Manual J load calculations, the industry-standard method that accounts for your home's square footage, insulation levels, window placement, and ceiling height. The result is a furnace that runs efficiently, heats evenly, and lasts as long as it should.
You won't be sold a bigger system because it carries a higher margin. You'll get the system your home actually needs.
Coleman Factory-Certified Installation with Full Manufacturer Warranty
We are a Coleman factory-certified dealer, which means our technicians are trained and tested specifically on Coleman equipment. That certification matters because it protects your warranty — manufacturer coverage on Coleman systems is only valid when the installation is performed by a certified dealer.
Coleman furnaces are available in a range of AFUE ratings, from standard 80% efficiency units to high-efficiency 96%+ models that qualify for DTE rebates and deliver meaningfully lower monthly heating bills. We'll explain the difference in plain terms and help you decide which tier makes financial sense for your situation.
- Coleman factory-certified dealer status
- Full manufacturer warranty protection on every install
- High-efficiency models rated 96%+ AFUE available
- DTE Energy rebates of $100–$300 on qualifying systems
- Manual J load calculation included with every installation quote
- Financing available with approvals from ~540 credit score
Our Furnace Installation Process
1. In-Home Assessment and Load Calculation
We visit your home, measure the space, review your existing ductwork, and run a Manual J calculation. This is the foundation of a correct installation — and it's how we give you an accurate quote, not a ballpark.
2. Upfront Quote with Equipment Options
You receive a written, itemized quote covering equipment, labor, and any ductwork modifications needed. We'll present two or three system options at different efficiency tiers so you can make an informed decision based on your budget and long-term energy goals.
3. Installation Day
Our team arrives on time, protects your floors and work areas, and completes the installation to manufacturer and code specifications. We test the system fully before we leave and walk you through the thermostat and any operational basics.
4. Rebate Assistance and Follow-Up
If your new system qualifies for a DTE Energy rebate, we help you submit the paperwork. We also register your equipment warranty and make sure you have everything you need for your records.
Frequently Asked Questions About Furnace Installation in Metro Detroit
How much does a new furnace cost in Metro Detroit?
Most complete gas furnace replacements in Southeast Michigan fall between $4,000 and $9,500 in 2026, with the local average around $4,295. Your final cost depends on system size, efficiency rating, and whether any ductwork work is needed. We provide a firm, itemized quote before any work begins.What AFUE rating should I choose for a new furnace?
AFUE measures how efficiently a furnace converts fuel to heat — a 96% AFUE unit converts 96 cents of every dollar of gas into usable heat. For most Metro Detroit homeowners, a high-efficiency unit (90%+) pays for itself over time through lower monthly bills and may qualify for DTE rebates. We'll help you run the numbers for your specific situation.Does Maximum Heating & Cooling help with DTE Energy rebates?
Yes. High-efficiency Coleman systems we install may qualify for DTE rebates of $100–$300. We help you identify qualifying equipment and assist with the rebate submission so you don't have to figure it out on your own.How do I know if my furnace needs to be replaced or just repaired?
Age, repair history, and efficiency are the three main factors. A furnace over 18–20 years old with a history of repairs and rising heating bills is usually a stronger replacement candidate than a 10-year-old unit with a single failed part. We'll give you both a repair estimate and a replacement quote so you can decide with real numbers in front of you.What is a Manual J load calculation and why does it matter?
Manual J is the industry-standard method for calculating exactly how much heating capacity your home needs. It accounts for square footage, insulation, windows, and ceiling height. Without it, contractors often oversize systems — which leads to short-cycling, uneven heat, and a shorter equipment lifespan. We run a Manual J on every installation.What financing options are available for furnace installation?
We offer financing through Optimus and Klarna, with approvals available for credit scores as low as approximately 540. An 18-month deferred interest option is available for qualified applicants. If a new furnace isn't something you can pay for out of pocket right now, financing makes it manageable.
Serving Homeowners Across Metro Detroit
We install furnaces throughout Livonia, Dearborn, Canton Township, Westland, Garden City, Northville, Plymouth, Farmington Hills, Romulus, and the surrounding Metro Detroit area. If your home is in Wayne County or the surrounding communities, we're likely already in your neighborhood.
