Your system has had its last Phoenix summer. Flush King Air installs new HVAC units across the valley, right-sized for your home, honest quote before we start, same-day installation in most cases.
4.9 Rating • Hundreds of 5-Star Reviews • 11 Vans Ready to Dispatch
Your system is telling you something. Here's how to know when it's time for a new unit.
Most homeowners wait longer than they should. By the time the system fails completely, the decision has already been made for them, usually at the worst possible time. Here's how to know if you're already there.
Your system is 10 to 15 years old
Standard HVAC lifespan runs 10 to 15 years nationally. In Phoenix, where systems run harder and longer than almost anywhere else in the country, that window is shorter. An aging unit in the valley is an expensive unit waiting to fail.
Your repair quote exceeds 30 to 50 percent of a new unit cost
This is the industry standard threshold. If you're putting significant money into a system that's already in decline, you're financing a losing position. A new unit is the smarter investment.
Your energy bills keep climbing for no clear reason
Mechanical wear forces older systems to run longer and work harder to hit the same temperature. That extra effort shows up on your APS or SRP bill every single month. Modern high-efficiency units can cut that cost meaningfully.
Some rooms never cool down no matter what
Uneven temperatures across the home mean your system has lost the airflow capacity it was designed for. That gap doesn't close with a repair.
The humidity feels wrong even when the temperature is right
A struggling system can no longer strip moisture from the air effectively. The result is a home that feels clammy and becomes vulnerable to mold over time.
Your air quality has gotten worse
More dust, more allergens, more irritants circulating through your home. Older filtration systems fail gradually. A new system with modern filtration addresses the source.
Your system uses R-22 refrigerant
R-22 has been federally phased out. Recharging is either unavailable or prohibitively expensive. If your system runs on it, replacement is not a question of if.
It's loud
Banging, squealing, rattling, vibrating. A system that announces itself every time it cycles is a system at the end of its mechanical life.
If two or more of these apply, you already know the answer. The only question is whether you replace it on your timeline or the unit's.
You've made the decision.We don't make you wait to act on it.
When you call:
A real person answers
A live dispatcher who knows our schedule and can tell you exactly when a technician is arriving.
Once you decide it's time for a new unit, every day you wait is another day running an inefficient system that's costing you money and comfort. Flush King Air moves fast.
Same-day installation in most cases
We carry the most common residential system sizes on our vans. We're not ordering your unit and scheduling you out a week.
You get a confirmed arrival time before you hang up
Not a window. A time.
We show up when we said we would
Every time.
It's ready!
Find out when we can be there
11 vans across the Phoenix metro covering Scottsdale, Tempe, Mesa, Chandler, Gilbert, Glendale, Peoria, Surprise, Goodyear and surrounding areas. There is a van near you today.
A lot of HVAC companies will install the unit with the best margin. We install the unit that's right for your home.
There are two ways to get a new HVAC installation wrong. Oversized and undersized. Both happen more often than they should, because right-sizing takes more time and more honesty than defaulting to whatever unit is easiest to push.
From your call to a cooler home. Here's exactly what happens.
You call, we answer
Real person. Real dispatcher. Confirmed arrival time before you hang up. Same-day in most cases.
We assess your home
Our technician evaluates your existing setup, your home's size and layout, your ductwork condition, and your usage patterns. We're building a complete picture before we recommend anything.
We give you an honest recommendation
We explain what your home actually needs and why. No pressure toward a more expensive system than your situation calls for. If a simpler solution fits, that's what we'll tell you.
Upfront written quote
Before anything is touched, you receive a written quote. The number on that quote is the number on your invoice.
We remove the old unit and install the new one
Old system disconnected and hauled away. New unit installed, connected, and brought to current Phoenix code requirements. We handle everything, including permits.
Full system test and walkthrough
We run the system through a complete operational check before we leave. Temperature differential confirmed. Airflow balanced across rooms. Thermostat calibrated. We walk you through the new system and your warranty, then clean up and go.
Every home is a little different. Here's the range of what brings Phoenix homeowners to this page.
Complete system replacement after failure
The unit stopped working and the repair conversation led to the same conclusion it always does with an aging system. Time for a new one. We treat same-day replacement as standard, not a premium service.
Proactive replacement before failure
You're ahead of it. Your system is aging, your bills are climbing, and you'd rather make this decision on your terms than wait for a 110-degree Monday in July to make it for you. This is the smartest call a Phoenix homeowner can make.
Repair cost triggered replacement
A repair quote came in high enough to make replacement the obvious financial decision. We give you a clear comparison so the math is visible before you commit to either path.
Efficiency upgrade
Your system still runs but it's not the system you'd buy today. Modern units run significantly more efficiently than systems manufactured even ten years ago. In a Phoenix home that runs cooling ten months a year, the long-term utility savings on an upgrade are real and compounding.
Post R-22 phase-out replacement
Your existing system runs on federally phased-out refrigerant. Recharging is no longer a realistic option. We replace with a current-generation system and dispose of the old unit properly.
Air quality driven replacement
Dust, allergens, and airborne irritants that older filtration systems can no longer manage. A new system with modern filtration addresses the circulation problem at the source rather than layering filters on top of an aging unit.
Not every home needs the same system. Here's how we think about matching the right unit to yours.
Standard split system
The most common residential setup in Phoenix. Outdoor condenser paired with an indoor air handler. Reliable, widely serviceable, available at multiple efficiency tiers. The right fit for most Phoenix homes with existing ductwork in good condition.
Heat pump system
Moves heat rather than generating it, making it more efficient for both heating and cooling. Phoenix winters are mild enough that a heat pump handles heating season without the operating cost of a traditional gas furnace. Worth considering if you're replacing both systems simultaneously.
Two-stage system
Runs at reduced capacity most of the time and ramps up only when the full load demands it. More consistent temperatures, better humidity control, lower operating cost than a single-stage unit. Well suited to larger homes or homes with rooms that never quite cool evenly.
Variable speed system
The highest tier of residential cooling technology. Adjusts output continuously to match your home's exact demand at any moment. Delivers the most consistent comfort, the best humidity management, and the lowest operating costs. The right choice for homeowners who want the best long-term performance from a new installation.
Zoned system
For homes where different areas have different cooling demands, a zoned setup allows independent temperature control by area. Solves the hot room problem permanently rather than managing it with portable units or closed vents.
Indoor air quality additions
UV air purifiers, electronic air cleaners, and upgraded filtration options can be integrated into a new installation. Particularly relevant for households managing allergies, asthma, or air quality concerns. We'll walk you through what's available and what actually makes a difference.
Brands we install
We carry and install units from the major manufacturers, Carrier, Trane, Lennox, Goodman, and others. We'll tell you what we recommend for your situation and why, not what's easiest for us to source.
Tell us about your home and we'll tell you what fits
"Adam came to my place regarding a kitchen sink issue. He was courteous, informative and top notch professional. If I ever had plumbing issues I will always request him. Great job!."
Janine R. Scottsdale, AZ
"We've had Flush King out a few times over the past couple of years, and they have been nothing but courteous and professional. We've recently had Tom work on some of our issues (just installed a new vanity and faucet this round!), and he's been great to work with. Highly recommend these guys!"
Marty F.Scottsdale, AZ
"Great prompt service from Tom. We have had issues with this shower having low pressure or not working for over a year. Had two other plumbing companies out with no success. Tom had it working like new in less than two hours. Reasonable price too. Definitely my new 'GO To' plumbing company."
Samantha H. Salado, TX
Right unit. Right home. Done right.
A new HVAC unit is a real investment. Here's how we make sure you're protected when you make it.
We're not going to pretend a new system is cheap. What we can promise is that every part of how we price is designed to protect you, not take advantage of you.
The quote we give you is the price you pay
Written before we touch anything. No line items that appear mid-installation. No "we found something once we opened it up." The quote is the quote.
We right-size before we quote
The assessment comes first. We calculate your home's actual cooling load before recommending a system. That means you're not paying for capacity your home doesn't need, and you're not getting undersold into a system that can't keep up.
We don't mark up for urgency
Whether you're calling proactively or your system just failed, our pricing is consistent. Your situation doesn't change our quote.
Same-day financing approval in most cases
Approval down to 560 credit score
Flexible monthly payment options
No prepayment penalties
Financing available, down to 560 credit score
A new HVAC system is a significant purchase. Flush King Air offers financing with same-day approval in most cases so the timing of the investment doesn't have to dictate the quality of it.
The questions Phoenix homeowners ask before installing a new HVAC unit
How do I know what size system my home needs?
We calculate it based on your home's actual cooling load. Square footage, ceiling height, insulation, sun exposure, window count, and duct condition all factor in. We don't default to the closest standard size. We calculate and confirm before recommending anything.
How long does new unit installation take?
Most standard residential installations take four to six hours from start to finish. We remove the old unit, install the new one, bring everything to current code, test the system completely, and walk you through it before we leave.
Do I need to be home during installation?
Yes. We need access to the system location and we walk you through the new unit before we leave. Plan to be available for the duration of the installation.
Does the installation include permits?
Yes. Phoenix requires permits for HVAC installation. Flush King Air pulls the permit as part of the job. It is included in your quote.
Do you haul away my old unit?
Yes. Removal and disposal of your existing system is included in the installation. Nothing left behind for you to deal with.
What warranty comes with a new installation?
Manufacturer warranties vary by system tier but typically cover parts for ten years on registered equipment. Flush King Air also backs our installation workmanship separately. We walk you through exactly what is covered before you sign anything.
Can I finance same day?
In most cases yes. Down to a 560 credit score. Ask our dispatcher when you call.
What if I'm not sure whether to repair or replace?
Call us. We'll come out, assess your system honestly, and give you real numbers for both options. We will tell you which makes more financial sense for your specific situation. There is no pressure either way.
What happens if something goes wrong after installation?
Call us. We stand behind our work. If there is an issue with the installation itself, we come back and make it right.
Still have questions? Call us right now — (602) 560-4883
Right-Priced. New Unit. One King.
Same-day new unit installation across the Phoenix valley. Load calculation included. Honest quote before we start. Running before we leave.