The compressor or the indoor coil has failed.
These are the two repairs that start to approach the cost of a new system. On a unit past ten years, it is worth seeing both numbers before you commit to either.
When an air conditioner gives out in a North Texas summer, the question is rarely just what broke. It is whether one half of the system can be replaced on its own, or whether the whole thing has to go. That is not a decision you can sit on with months of cooling still ahead.
That call is what CityLine Air Conditioning is here to make with you. As an Amana and Daikin dealer with NATE-certified technicians on staff, we check what refrigerant your system runs on, whether a matching coil or outdoor unit is still made for it, and whether the two are approved to run together. Then we price both routes, so the choice in front of you is two numbers.

No single symptom automatically means you need a new air conditioner. But when repair bills, comfort problems and equipment age start adding up through long DFW summers, it's worth comparing replacement options.
The compressor or the indoor coil has failed.
These are the two repairs that start to approach the cost of a new system. On a unit past ten years, it is worth seeing both numbers before you commit to either.
Your system still runs on R-22.
It is no longer produced or imported, so every recharge draws on a shrinking reclaimed supply that costs more each season. A leak in an R-22 system is a bill that only goes one way.
It needs refrigerant again.
A leak that keeps returning on an aging coil or condenser often means replacing that part or the full system. Topping it off each summer treats the symptom and leaves the leak exactly where it is.
The outdoor unit buzzes or grinds.
Buzzing often points to an electrical part and grinding to a worn motor, either of which can signal wider wear. A grinding condenser fan left running long enough can take the compressor with it.
The house never feels dry, even while the AC runs.
A system too large for the house cools fast, shuts off, and never pulls the moisture out. No repair corrects that, because the fault is the size of the equipment.
The breaker trips more than once.
A worn compressor or a wiring fault can trip it, and a compressor pulling too much current is usually close to the end. After a second trip, stop resetting it and book a visit.
Still deciding? A single sign on a newer system usually points to a repair, and AC repair is the cheaper place to start. Several at once on an older unit is when replacement becomes the conversation worth having. If a straight swap is not the obvious answer, consider installing a heat pump; HVAC financing can spread the cost of either.
Your estimate is free. From there, your price comes down to the equipment's size and efficiency and whether you're replacing one compatible component or the full system. Installation labor and any ductwork or electrical changes add to it.
You'll get every option in writing, and nothing is installed until you approve one. If monthly payments would help, you can review financing options before deciding.
Free replacement estimates
of manufacturer parts warranty, on a full system or on a single coil or condenser.
Sometimes. If the indoor coil is in good condition and a compatible condenser is available, replacing only the outdoor unit may be practical. The reverse can be true too. When one part will do, we'll price one part, then leave the choice with you.
| What you're comparing | Outdoor unit only | Indoor coil only | Full system |
|---|---|---|---|
| When it can make sense | Your indoor coil is newer and still sound | Your outdoor unit is the newer half | Both halves are aging, or no matching part exists |
| Refrigerant | Replacement must be compatible with the existing indoor coil and refrigerant | New coil must be approved for the existing outdoor unit and refrigerant | New indoor and outdoor components are selected as a compatible system |
| Upfront cost | Often less than a full replacement, depending on equipment and labor | Also less than replacing everything | Typically a larger upfront investment, with all major components replaced |

We install Amana and Daikin systems that use R-32, a refrigerant with an established global supply. While R-454B has faced shortages, our focus is on equipment homeowners can maintain and service for years to come.
Replacement estimates come in four packages, Essential through Platinum, and all four open on the technician's tablet while they are still at your house, each shown in pictures and priced. You compare them and choose, rather than waiting days for one number by email.
Your investment deserves protection. Get a 10-year Amana parts warranty when registered within 60 days, or five years without. Plus, our 365-day money-back guarantee protects your installation if we can't make things right.
Tell us what your air conditioner has been doing and where the home feels uncomfortable. We'll book a visit to check the outdoor unit, the indoor coil and any airflow concerns.
We'll walk you through the packages, from Essential up to Platinum, each with pictures and written pricing. The estimate is emailed to you before anything is signed.
Once you've chosen an option, you approve the estimate electronically. If you're financing, the lender sets the approval time and terms. Then our office calls to schedule the installation.
Our crew installs the equipment you've approved and checks its operation. We handle the city permit, with its cost included in the final price, and set up the city's inspection to follow the install.
Book Now
No cooling or no heat? Call (972) 776-4455, day or night.
You shouldn't have to wait days to find out what a new cooling system will cost. Call (972) 776-4455 or request an estimate online, and our office team will schedule the earliest available visit. Your technician brings the pricing out with them, so you have real numbers before they leave.
Before recommending a replacement, we check the outdoor unit, indoor coil, existing ductwork, and electrical supply. We'll also look at the age and condition of your equipment. If you're considering replacing only part of the system, we'll explain whether the existing components are compatible.
We work with Service Finance and Foundation Finance to help you explore payment options. Your technician can walk you through the application during the visit, so there's no extra paperwork to chase down later. Financing approval and terms are determined by the lender.
4.7stars from 700+ Google reviewsWondering whether you need a new AC? Call (972) 776-4455 · Request an Estimate
Our installation crews head out from Richardson to homes across Dallas-Fort Worth. Permit requirements and inspections vary by city, but our equipment options, four package prices, and installation process stay the same.
For Fort Worth and North Dallas, coverage depends on your ZIP code rather than city limits. Have your address ready when you call so our team can confirm service availability and the permits required for your installation.
Our Service Area
Don't see your street? Call (972) 776-4455 and ask.
The technicians were professional and very knowledgeable. We had our AC serviced, new Gas Furnace installed with air purifier, and also had our air ducts cleaned. I would go to CityLine first before any other company!
Kyle Cooper
The technician, Alberto, arrived on time, knew the equipment he was working on, was very professional, and was happy and very thorough.
Alann Nevarez
They contacted us in a timely manner, were on time for the service call and took care of the issues.
Jeffrey N.
Alberto Nevarez was great. Helped inform us of everything we needed to know plus extra. He went above and beyond to educate us as new home buyers of our systems and needed maintenance. 10 out of 10 would recommend
Tony A.
CityLine came to my home to check my unit for heating for this winter and were excellent. Technician Jay Jones was superb! He explained in detail everything he reviewed and gave me confidence in the service provided. 10/10! Would recommend to everyone!
Ryan F.
Travis came by to do a check up on the system. He's very courteous and friendly. All is well with the system.
Adrien C.




May 5, 2026You might not think much about dust. It gathers on shelves, settles on furniture, and seems like nothing more than a minor household annoyance.
May 4, 2026It’s 2:00 PM on a July afternoon in Dallas-Fort Worth. The thermostat reads 97°F outside, and you just realized your AC is not turning on.
May 4, 2026You’re sitting in your living room when your air conditioner kicks on and something sounds… wrong. Maybe it’s a metallic banging that wasn’t there last week.
Yes, and in North Texas it is worth pricing. A heat pump is an air conditioner that also runs in reverse, so it takes over the heating your furnace does now. Winter temperatures here rarely fall below 25°F, which covers 95 to 99 percent of the heating hours. Most homes do best on dual fuel, holding the furnace in reserve for a hard freeze. See heat pump installation.
Not necessarily the size you have now. Capacity comes from your home's heat gain: floor area, how well the house is insulated, window area and orientation, and what the ducts lose along the way, measured against a DFW design temperature of 94°F. Systems sized on square footage alone are usually too big, and an oversized AC cools fast, shuts off, and leaves the humidity behind.
Not always. We check your existing ducts for leaks, crushed runs, and whether they can move the air the new equipment needs. Attic ductwork ages quickly here, because the heat up there degrades the material and the seals, so it is worth looking at before the equipment is chosen rather than after. See ductwork services.
They are the two refrigerants replacing R-410A in new equipment, and both are a large improvement on it. Amana and Daikin systems run on R-32, a single-component refrigerant that is simpler to handle and recover. Carrier, Bryant, Lennox, Trane and Rheem use R-454B, which has had supply shortages. Our installs are Amana and Daikin.
Usually 10 to 15 years, though it moves with the quality of the install, how well the system was sized, and how hard it runs. A DFW system works far more hours than one in a milder state, with cooling season opening in May and running to the end of September. Staying on top of AC maintenance is the part of that you control.
Office hours 8 AM to 6 PM, with phones answered around the clock.