Furnace Replacement in Duluth, GA
Zen Air's furnace replacement in Duluth, GA turns an aging, unreliable heater into efficient, even warmth — we help you decide, remove the old unit, and install the right new system, stress-free.
5-Star Heating & Cooling
Rated 5 out of 5 by Duluth neighbors
Is a New System Really Worth It?
Wondering whether it's time to replace? See how a modern, high-efficiency system stacks up against an old, tired one — in comfort, reliability, and the impact on your monthly energy bills.
Reliable Furnace Replacement in Duluth, GA
When repairs start stacking up and your energy bills keep climbing, replacing your furnace is often the smarter, cheaper move over time. Zen Air Heating & Cooling makes it painless — we give you honest repair-or-replace advice, remove and dispose of your old unit, and install an efficient new system sized right for your home.
As a family-owned, NATE-certified team and Lennox Premier Dealer serving metro Atlanta since 2016, we replace gas, electric, dual-fuel, and heat pump systems from every major brand — and we'll help you weigh efficiency, comfort, financing, and any available rebates before you decide.
- Honest repair-or-replace guidance
- Old furnace removed & disposed of for you
- High-efficiency systems, financing & warranties
Why Duluth Replaces With Zen
What a New Furnace Delivers
Replacing an old, worn-out furnace does more than end the repair headaches — here's what you gain.
Lower Energy Bills
Modern high-efficiency furnaces turn far more of your fuel into heat, so you stay warm while spending less every month.
Get a QuoteEven, Reliable Warmth
No more cold rooms or mid-winter breakdowns — a right-sized new system heats your whole home consistently and dependably.
Get a QuoteQuieter Comfort
Today's furnaces run far quieter than older models, with variable-speed operation that eases on and off instead of blasting.
Get a QuoteSafer Operation
Replace the risk of a cracked heat exchanger or carbon-monoxide leak with a clean, safe, code-compliant new system.
Furnace RepairEfficient Heat-Pump Options
Prefer one system that heats and cools? Upgrade to an energy-saving heat pump or dual-fuel setup while you replace.
Explore Heat PumpsWarranty Protection
Trade end-of-life uncertainty for fresh manufacturer parts warranties plus our workmanship guarantee on the install.
Get a QuoteWhy Homeowners Choose Zen for Furnace Replacement
Replacing a furnace should feel like an upgrade, not an ordeal — so we handle every part of it.
Seamless Swap
We remove your old furnace, pull permits, and install the new one to code — usually in a single day.
Honest Pricing
A free estimate, a clear written quote, an free estimate, financing, and help finding rebates — no surprises.
Efficiency Upgrade
We match you to a high-AFUE system and smart controls that keep you warmer for less every winter.
Certified & Backed
NATE-certified installs with manufacturer and workmanship warranties, so your investment is protected.
Your Path to a New Furnace
Four calm, simple steps from "should we replace it?" to "the whole house is warm again."
Free Assessment
Book online, grab a free estimate, or call (678) 853-7440 for an honest repair-or-replace evaluation.
Right-Size & Recommend
We run a proper load calculation and recommend the best-fit, most efficient system for your home and budget.
Remove & Replace
We haul away your old unit, pull permits, and install the new system cleanly and to code.
Test & Enjoy
We test everything, walk you through your new system, and leave you warm, efficient, and worry-free.
When to Replace & How We Price It
Know when a new furnace beats another repair — and exactly how we keep pricing simple and fair.
Signs It's Time to Replace Your Furnace
Replacing usually beats repairing again when you notice:
- Your furnace is 15+ years old
- Frequent or costly repairs keep adding up
- Heating bills keep climbing
- Banging, rattling, or squealing noises
- Rust, a cracked heat exchanger, or safety concerns
Honest, Up-Front Pricing
No guesswork and no surprises — here's how Zen keeps replacement pricing stress-free:
- A free in-home estimate before you commit
- A clear, written quote — with a repair-or-replace comparison
- A free estimate that covers the whole job in writing in minutes
- Flexible financing, plus help finding rebates & tax credits
- Old-unit removal & disposal included
Every home and system is different, so we quote each replacement individually — get your exact price fast with the free estimate.
Protect Your New Furnace, Year After Year.
Keep your new system efficient and under warranty with annual inspections, priority scheduling, exclusive member discounts, and a yearly loyalty credit. Free memberships for military, veterans, first responders, teachers & seniors.
Furnace Replacement Questions, Answered
How do I know it's time to replace my furnace?
Common signs: a furnace over 15 years old, frequent or costly repairs, rising heating bills, uneven heating, banging noises, rust or a cracked heat exchanger, and safety concerns like a yellow flame. If several apply, replacing usually beats repairing again.
Should I repair or replace my furnace?
Repair if your furnace is under about 12–15 years old and the fix is minor; replace if it's older, needs frequent or expensive repairs, has a cracked heat exchanger, or can't keep you comfortable. We give an honest recommendation and a clear quote for both options.
How long does furnace replacement take?
Most replacements are done in one day — usually four to eight hours — including removing the old unit and installing and testing the new one. Timing depends on the system and any ductwork or venting changes. We'll give a clear timeline with your quote.
Will a new furnace lower my energy bills?
Usually, yes. Older furnaces often run at 70–80% efficiency (AFUE), while modern high-efficiency systems reach 90–98% — meaning more of your fuel becomes heat instead of waste. The right size plus a smart thermostat maximizes the savings.
Do you remove and dispose of my old furnace?
Yes. Removing and disposing of your old furnace is included in a replacement. We pull required permits, install the new system to code, and leave your home clean — the whole process is handled for you.
What warranties come with a replacement?
New systems come with manufacturer parts warranties (often up to 10 years when registered), and we back our installation workmanship too. We'll walk you through the exact coverage for the system you choose.
Are financing or rebates available?
Yes. We offer flexible financing so you can replace now and pay over time, and we'll help you check for any current manufacturer rebates or energy-efficiency tax credits you may qualify for. Ask when you request your free estimate.
How much does furnace replacement cost?
It depends on the system, its size and efficiency, and any ductwork or venting work needed — so we don't guess. We give a clear, written quote up front, and our free estimate covers the whole job in writing. Financing is available.
Furnace Replacement Service Areas
Proudly upgrading comfort across metro Atlanta since 2016.
Ready to Replace Your Furnace?
Book your free replacement estimate or ask us anything — we'll bring stress-free comfort to your Duluth home or business.