The smarter way to replace your furnace or AC
Compare your options, understand replacement costs, and find the right HVAC solution for your home - with confidence. An independent guide, not a sales call.
- Every figure cited to a named source
- Reviewed and dated
- No sales calls to read a page
What are you looking to replace?
Pick the one that matches your situation. Each leads to the comparison or cost breakdown that actually applies to it.
Furnace Replacement
Compare furnace types and AFUE ratings, and see when a heat pump could do the job instead.
AC Replacement
Compare central AC and heat pump cooling, SEER2 ratings, and what actually suits your climate.
Complete HVAC System
Replacing the furnace and AC together: how a whole-system quote is put together.
- 0detailed answersone page per question people actually search
- 51states coveredevery US state and the District of Columbia
- 91queries researchedmeasured search volume, not guesswork
- 0sales callsread anything here without giving us your number
Make your HVAC replacement decision with confidence
Not a sales pitch for one system. A way to understand the decision before anyone is quoting you anything.
Understand Your Options
Furnace, heat pump, central AC or ductless mini-split, explained side by side before you talk to anyone selling one.
Compare Replacement Solutions
The trade-offs between system types and efficiency tiers, laid out plainly rather than buried in a sales pitch.
Get Transparent Cost Guidance
What actually moves an HVAC quote - scope, size, efficiency, ductwork, labor - so you can read one instead of just trusting it.
Find the Right System for Your Home
Climate, ductwork and how long you plan to stay decide more of the right answer than any brand does.
What do you want to know?
Each section answers one part of the decision. Pick one to see what is inside it before you commit to reading it.
Types & Options
Furnace, heat pump and central AC compared on efficiency, cost and climate fit.
This section is the page itself: there are no separate answers underneath it yet.
Open Types & Options
Repair & Part Costs
What a failed compressor, capacitor or coil actually costs to fix, part by part.
This section is the page itself: there are no separate answers underneath it yet.
Open Repair & Part Costs
What It Costs
Price ranges by scope and system size, with what actually moves the number.
This section is the page itself: there are no separate answers underneath it yet.
Open What It Costs
Common Problems
Not heating, not cooling, tripping the breaker: what each symptom means and what it costs to fix.
This section is the page itself: there are no separate answers underneath it yet.
Open Common Problems
Choosing a Company
How to read a quote, verify a license, and spot the patterns that precede a bad job.
This section is the page itself: there are no separate answers underneath it yet.
Open Choosing a Company
DIY vs Professional
Which parts of the job a competent homeowner can do, and which ones are legally restricted or dangerous.
This section is the page itself: there are no separate answers underneath it yet.
Open DIY vs Professional
Complete Guide
The whole decision end to end, from diagnosis to final inspection.
This section is the page itself: there are no separate answers underneath it yet.
Open Complete GuideHow much does HVAC replacement cost?
There is no single national number, because these five decisions move it. This is the order they matter in.
System Type
Furnace, AC, heat pump, or the whole system together
Home Size
Correct tonnage and BTU sizing, from a load calculation
Efficiency
SEER2, HSPF2 or AFUE rating - cost now versus cost to run
Installation
Labor and any ductwork repair or replacement it needs
Local Factors
Permits, market labor rates, and what your climate calls for
Replacing one, or replacing both?
The two sides of the same job, compared. Full detail, ratings and climate fit are on Systems.
Furnace Replacement
- Heats using gas, propane or electric resistance
- Rated by AFUE - the share of fuel energy that becomes usable heat
- Pairs with central AC for cooling, since a furnace heats only
AC Replacement
- Cools only; works with a separate furnace for heat
- Rated by SEER2 - less energy for the same cooling output
- A heat pump is the same equipment able to heat as well as cool
Start from the situation you are actually in
Most people arrive here mid-problem rather than at the beginning. Pick the line that sounds like you.
- My system won't turn on, or isn't heating or coolingWork out what is actually failing
- A specific part failed and I need it fixedSee what that repair typically costs
- I want to know what a new system is going to costSee the price ranges and what moves them
- I cannot decide between a heat pump, furnace or central ACCompare the systems side by side
- I have quotes in front of me and they do not matchLearn how to read and compare them
- I am right at the start and want the whole pictureRead the complete guide
Three steps, no pressure
This is how using this site actually goes, not a promise about what happens after you ask to be connected to a company.
- 1
Tell Us About Your Home
A few questions about your system, your home and what is not working - covered on the quote form, not a phone call.
- 2
Explore Your Options
Read the comparisons and cost guidance that apply to your situation before anyone quotes you anything.
- 3
Get Your Best-Fit Solution
Ask to be connected only when you are ready, to licensed local companies who can quote the job properly.
Your HVAC replacement resource center
The seven sections above, as a shelf you can browse rather than a menu you have to already know the name of.
Types & OptionsTypes & Options
Furnace, heat pump and central AC compared on efficiency, cost and climate fit.
Read guideRepair & Part CostsRepair & Part Costs
What a failed compressor, capacitor or coil actually costs to fix, part by part.
Read guideWhat It CostsWhat It Costs
Price ranges by scope and system size, with what actually moves the number.
Read guideCommon ProblemsCommon Problems
Not heating, not cooling, tripping the breaker: what each symptom means and what it costs to fix.
Read guideChoosing a CompanyChoosing a Company
How to read a quote, verify a license, and spot the patterns that precede a bad job.
Read guideDIY vs ProfessionalDIY vs Professional
Which parts of the job a competent homeowner can do, and which ones are legally restricted or dangerous.
Read guideComplete GuideComplete Guide
The whole decision end to end, from diagnosis to final inspection.
Read guideWhat we can actually stand behind
We do not publish reviews, star ratings or testimonials of our own, because we have not inspected anyone's work - a claim we make about ourselves further down this page, and hold to here. These are the things we can prove instead.
Every figure cited and dated
Nothing on this site is a number we made up. Each one is traced to a named source, with the date it was checked.
No ratings or testimonials of our own
We have not inspected anyone's work, so we do not publish reviews, stars, or quotes pretending otherwise.
No sales calls to read a page
Nothing here asks for your phone number to unlock content. You hear from a company only if you ask to be connected to one.
No pressure, either way
Reading a page here does not commit you to anything. Compare your options for as long as you want before you decide.
Before you rely on anything here
Questions about HVAC systems are answered on the pages above, with sources. These are about how this site operates and who is paying for it.
Are you an HVAC contractor?
No. Furnace and AC is an independent information site. We do not install, repair, service, quote, inspect or warranty anything, and we are not licensed to. If you ask to be connected, your enquiry goes to independent local companies who are.
How does this site make money?
A referral to a local company can earn us a payment, and we say so on every page instead of burying it in a footer. That's a real incentive to push you toward one - which is exactly why editorial rules exist to check that incentive before anything publishes.
Where do the prices on this site come from?
Every figure is tied to a named source and a review date; if it can't be traced to one, it doesn't get published. HVAC pricing is set locally, not nationally, so figures show as ranges - your actual market could still land outside that range.
Will I get sales calls just for reading a page?
No - none of the content here is gated behind a phone number. A company only contacts you once you've chosen to ask for a connection.
Do you rank or rate HVAC companies?
No. We publish no reviews, ratings, star scores or testimonials of our own, because we have not inspected anyone's work. A referral is not a certification. Check licence and insurance yourself before you sign anything.
Can I rely on a national price range for my own home?
Treat it as a starting point for the conversation, not as a quote. System size, efficiency rating, ductwork condition, and what the technician finds during installation all move the number, and labor rates vary widely by market.
How a page here gets made
This site is paid when it refers a reader to a local company. That is an incentive to tell you what you want to hear, so the process below is built to push against it, and it runs before anything is published rather than after a complaint.
- 1
A brief exists before the writing does
Nothing gets drafted until a research brief is built for it, and every fact in that brief is tied to a source and a date. If it can't be sourced, it doesn't make the brief - and if it's not in the brief, it doesn't make the page.
- 2
The brief is all a writer has
Pages are written strictly from their brief, never from memory or a plausible-sounding number. That separation is the mechanism, not a policy - it's what keeps unsourced claims out in the first place.
- 3
Nine checks, run automatically
A finished page doesn't go live until automated gates run against it. The most important one extracts every number, date and cited authority and checks it against the brief line by line; whatever doesn't match gets cut.
- 4
Reviewed, then reviewed again
The date on each page marks when it was last checked, because HVAC prices don't hold still. A figure that was right a year ago gets a fresh look rather than a free pass.
What you will never find here
Each of these is a check that fails a page and stops it publishing, not a promise we are asking you to take on trust.
- No figure on this site that we can't point back to a named, checkable source
- No self-written reviews, star ratings or testimonials, ever
- No license or years-in-business claim left unverified. We do not install HVAC systems
- No promises about price, response time, availability or how a job turns out
The questions asked most often
Ranked by measured monthly US search volume, not by what we would prefer you to read. The bars are that volume drawn to scale, so you can see how steeply interest drops after the first few.
Who we cite, so you can go and check
Standards bodies and federal agencies, not other blogs. These are the references the pages here draw on; each page also carries its own numbered source list covering the specific figures on it.
- ENERGY STAR US Environmental Protection AgencyCertification criteria for efficient furnaces, air conditioners and heat pumps
- Department of Energy US DOE, Office of Energy EfficiencyGuidance on home heating and cooling system types and efficiency
- AHRI Air-Conditioning, Heating and Refrigeration InstitutePerformance certification and ratings for HVAC equipment
- NATE North American Technician ExcellenceThe independent certification a qualified HVAC technician can hold
- International Code Council ICCModel mechanical and building codes covering HVAC installation
Manufacturer and retailer pricing pages are used for current prices where no neutral source publishes them, and are labelled as such on the page. We do not cite other lead-generation sites, aggregators, or content farms, because their figures are usually copied from somewhere else without a date.
States we cover
We cover all 50 states and DC. Costs are set locally, so the pricing lives in the guides above rather than in a page per state, because a national figure for a locally priced job would be misleading.
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Ready to make your home more comfortable?
Explore your HVAC replacement options and take the next step with confidence.
Get started todayWho runs it, and how it is paid for
Furnace and AC is an independent information site. We do not install, service, inspect or warranty anything. Referring a reader to a local company can earn us a fee — it’s stated upfront, not buried, because that arrangement is exactly why every page is fact-checked before it publishes.