Replacing Your Existing Coleman Unit

Updated September 2026 · ATX Mini Split King, Austin and Central Texas

Homeowners in Austin reach this page when their existing Coleman unit is not cooling, is short cycling, is loud, or is old enough that a repair quote came back high. ATX Mini Split King is an independent HVAC and electrical contractor with no relationship to that brand. We remove the unit you already own and install a mini split when it fits the house, the climate, and your budget. Call (512) 297-7493.

ATX Mini Split King is an independent HVAC and electrical contractor. We are not affiliated with, endorsed by, or a representative of Coleman or any manufacturer. The Coleman name appears here only to describe equipment that may already be installed in your home and that we can remove and replace. All manufacturer names are the property of their owners.

Flat pricing, everything included

Those are materials and labor together, wired to code by a TDLR licensed contractor. Anything non standard gets quoted first, before a single tool comes out of the truck: a very long line set, an electrical panel that needs work, a difficult mount, a roof or masonry penetration, disposal of the old equipment. You hear the number before we start, not after.

What usually brings a homeowner here

The typical reason an Austin homeowner finds this page is that the existing Coleman unit is not cooling the living space. The outdoor fan turns and air comes from the registers or the indoor unit, yet the temperature inside keeps rising through the afternoon. West facing rooms and spaces that were added later, such as a converted garage, often feel the worst. Short cycling is almost as common. The equipment starts, runs for a short period, stops, and repeats the pattern many times an hour. Because the run times are brief, the system does not remove much humidity. The house can feel sticky even when the thermostat is close to the number you set. Loud operation that has gotten worse over time is another frequent complaint. Bearings, fans, or the compressor cabinet may rattle or hum at a level that is hard to ignore.

Age is a reason of its own. After many seasons of long Central Texas summers and short mild winters the equipment is simply old. Parts that used to be easy to find may now take time to locate. A repair quote that came back high is often what finally starts the replacement conversation. The quote may cover a major component plus labor, and the homeowner starts doing the math against the remaining years they hope to stay in the house. None of this is a judgment on the original manufacturer. It is a practical look at the machine sitting outside or in the closet right now and whether it still makes sense to keep feeding it money. Older housing in Austin, with additions that were never fully integrated into the original system, makes these symptoms show up sooner in some rooms than others.

These symptoms do not automatically mean you should replace the unit. They mean you should get a clear picture of what is wrong and what it will cost to put it right, then compare that number to a full replacement path. ATX Mini Split King can look at both. We are an independent contractor. We will not talk you into a mini split if a straightforward repair on the equipment you already own is the better use of money. Converted garages and room additions in older Central Texas houses often have their own small systems or no real system at all. Those spaces are where a ductless head can make sense even if the main house keeps its existing equipment for a while longer. The first step is still an honest look at the unit that is failing to keep the house comfortable today.

Repair versus replace, honestly

Repair is clearly the smarter money when the problem is isolated and the rest of the system is still doing its job. A failed capacitor, a bad contactor, a worn fan motor, or a simple control issue can often be fixed in a single visit for far less than a new system. If the heat exchanger or coil is intact, the compressor still pumps, and the cabinet is not rusted through, putting those dollars into a repair keeps you cool through the rest of this summer and probably the next. We will tell you that. ATX Mini Split King does repair work as well as replacement. There is no incentive for us to push a mini split when a straightforward fix on your existing Coleman unit will restore comfort. Long summers mean you need something that works now, not a sales pitch.

Replacement starts to make more sense when several things are wrong at once, when the repair quote is high relative to how long you plan to keep the house, or when the existing layout never really served the addition or the converted garage. A mini split is not automatically the right replacement. If the home already has a working duct system and you simply need new central equipment, hanging indoor heads on the walls adds visual clutter and extra outdoor units you may not want. Some houses have electrical services that cannot take another outdoor condenser without a panel change. That extra work can erase the simplicity of a ductless job. We say the drawback out loud. A mini split puts a white indoor unit high on a wall in each zone. If that look bothers you, it is the wrong product no matter how well it cools.

The honest process is to diagnose the existing Coleman unit first. If a repair will clearly get you through several more seasons at a modest cost, do the repair. If the equipment is at the end of its useful life in your particular house, then we talk about what a ductless system would actually look like in your rooms. Central Texas winters are short and mild, so heating performance of a mini split is usually adequate here, but it is still a wall mounted unit with a fan. Some people prefer the feel of a ducted system in every room. That preference is valid. We would rather lose the job than install something you will regret looking at every day. Call (512) 297-7493 and we can walk the house with you before anyone orders equipment.

What carries over to a new ductless system

The outdoor pad can often stay if it is level, large enough for the new condenser, and located where airflow and code clearances work. Cracked pads, pads in a low spot that holds water, or pads that are too small get replaced. We set a new pad when needed and discuss it before work starts. The wall penetration can be reused if the new indoor head sits in the same place and the hole diameter and height are correct. We seal around the new line set. Often the head location changes for better air throw or to miss a window, so a new hole is drilled and the old one is patched. Extra patching on brick or weathered siding in older Austin houses is quoted separately.

The line set almost never carries over. Copper that held refrigerant and oil from the old system is the wrong diameter, the wrong oil type, or both. There is also the chance of contamination or leaks at old flares. We recover what is left in the existing Coleman unit, then we run new insulated line set from each indoor head to the outdoor condenser. Length, lift, and the number of bends are checked so the new system can actually perform. Reusing the old lines would be a shortcut we will not take. The disconnect and the circuit from the panel are inspected next. If the breaker, wire gauge, and disconnect are in good condition and sized for the new outdoor unit, they stay. If the circuit is undersized, damaged, or not up to current code, a new run is required and that electrical work is quoted before we start.

The mounting bracket for an indoor head is almost always new. The old bracket rarely matches the new chassis. Outdoor wall brackets, if the condenser cannot sit on a pad, are evaluated for rust and load rating. Most of the time we supply a new one. The condensate route is the last item that sometimes carries over. Gravity drains that already pitch to the exterior and terminate correctly can be tied into. In slab houses or when the indoor unit sits far from an outside wall, a condensate pump may be needed. Pumps add a point of failure and a little noise, which is a real drawback we mention. We prefer gravity when the layout allows it. All of these reuse decisions are made on site and written down before any demolition starts so you know what stays and what is new.

What the replacement day looks like

Before the truck shows up you need to decide three things. First, how many zones, which means how many indoor heads. One head can cover a large open room or a studio. Two or three heads make sense when you have separate bedrooms, an addition, and a converted garage that never shared air with the main house. Second, exact head placement. High on an interior wall is typical, with a clear throw across the room, not directly over a bed or a doorway if you can help it, and out of the harshest afternoon sun. Third, where the outdoor condenser will sit. It needs airflow on all sides, a place for the pad, a reasonably short line set run, and as much shade as the lot allows. Neighbor lines and window locations matter for noise. We walk these choices with you so the day itself is execution, not debate.

On the day we arrive, protect floors and furniture, then recover remaining refrigerant from the existing Coleman unit so it can be hauled away legally. Electrical is locked out. Indoor and outdoor sections come off, old line set is pulled, and openings that will not be reused are patched. If a new pad is required it goes in first. New indoor heads are mounted on their brackets, new penetrations are drilled, and new line set is run, insulated, and connected. A vacuum is pulled on the piping, the system is opened to its charge, condensate piping is completed, and electrical connections are landed at the disconnect and the heads. Startup includes checking temperatures, airflow, and drain. We haul the old equipment away and leave the work area swept. A one head job often finishes in a single day.

The homeowner needs to be home or have someone who can make small decisions. Power must be on. Pets and kids should be kept out of the work path. If the existing unit served a converted garage that you now use as living space, say so early because head placement and condensate routing change. We work to code as a TDLR licensed contractor. Permits, if the city requires them for the electrical or the mechanical change, are handled in the process. At the end you get a walkthrough of how to use the remote or wall control, how to clean the filters, and what the outdoor unit should sound like in normal operation. If something does not look or sound right that afternoon, we stay until it does. That is the full day, start to finish.

Flat pricing and what is included

For a straightforward replacement the price is flat. One indoor head is $1,500, materials and labor included. Two indoor heads are $2,500. Three indoor heads are $3,500. Those figures cover removal of the existing Coleman unit you already own, the new ductless equipment for that number of heads, standard line set, reuse of the pad and circuit when they are suitable, a gravity condensate route when the layout allows it, mounting, startup, and haul away. Work is done to code by a TDLR licensed contractor. ATX Mini Split King is independent. There is no manufacturer relationship that changes the price. If the job is a simple swap in an accessible Austin house, that is what you pay.

Anything that is not standard is quoted in writing before any work begins. A new electrical circuit or panel work, a new pad, extra long line set, a condensate pump, difficult access such as a second story or a tight side yard, masonry patching beyond a simple close, additional indoor heads beyond three, or indoor finishing that goes past basic patch and paint all sit outside the flat numbers. We do not start until you have that extra number and agree to it. That keeps the job honest. Older Central Texas houses often need one or more of those extras because of how additions were built or how the original electrical was sized. We would rather quote the real scope than surprise you on the last day.

The flat prices assume typical access, typical wall construction, and a condenser location that does not require a crane or unusual lifting. If your lot or your house is unusual we will say so on the first visit. Payment is due as agreed when the work is complete and the system is running. We do not hide trip charges or extra fees inside the three published numbers. If a mini split is not the right fit for your house for the house we will also say that, even though it means we do not collect the $1,500 or $2,500 or $3,500. Keeping the existing equipment after a modest repair can be the cheaper path, and we will put that option in front of you with the same plain language. Call (512) 297-7493 to have someone look at what you actually have.

Questions to ask and when to keep the old unit

Ask any installer whether they are a TDLR licensed contractor and whether they pull the permits the city actually requires. Ask who will do the electrical work. ATX Mini Split King is both an HVAC and an electrical contractor, so the same crew can run a new circuit if the existing one will not work. Ask what they intend to reuse. Line set reuse is a red flag. Ask how they will route condensate in a slab house versus a pier and beam house. Ask for the scope in writing, including what happens if the pad is wrong or the wall is masonry. Ask whether they haul the old Coleman unit away. Ask how many days they expect to be on site. Those questions separate a careful job from a rushed one. You are allowed to walk away if the answers are vague.

Keeping the existing equipment is the better decision when a modest repair will restore cooling for a useful stretch of time and you are not trying to solve a layout problem at the same time. It is also better when the house already has ducts that serve every room well and you would only be adding wall heads you do not want to look at. It is better when the electrical service cannot support another outdoor unit without a costly panel change that dwarfs the comfort gain. It is better when you simply dislike the appearance or the sound of indoor heads. A mini split is the wrong answer in those cases. We will say so. Central Texas heat is real, but that does not mean every house needs a ductless system the moment the old unit acts up.

If you are replacing because an addition or a converted garage never had proper cooling, a single head in that space while the main system stays in place can be the right sized answer. You do not have to redo the whole house. Ask the installer to show you on paper where each head would go and where the condenser would sit before you agree. If they cannot explain reuse of the pad, the penetration, the circuit, and the drain in plain language, keep looking. ATX Mini Split King will have that conversation on the first visit. Phone is (512) 297-7493. The goal is a house that stays comfortable through the long summer without spending money on the wrong equipment or the wrong approach.

Questions people actually ask

Can you repair my existing Coleman unit instead of replacing it?

Yes, when repair is the smarter money we do that work. A failed capacitor, contactor, or fan motor is often a one visit fix. If several components are gone or the repair quote is high compared with how long you will stay in the house, we talk about removal and a mini split. We have no relationship with the brand. We look at the machine in your yard or closet and give you both numbers so you can choose. Call (512) 297-7493.

What happens to the old line set and the outdoor pad?

The line set is almost always replaced with new insulated copper. Old lines carry the wrong oil and may be the wrong size or contaminated. The pad stays if it is sound, level, and large enough with proper clearances. If it is cracked or too small we set a new one and quote that before work. The disconnect and circuit are checked the same way. Reuse is a decision made on site, not a promise made on the phone.

How many indoor heads do I need for an older Austin house with an addition?

That depends on how the rooms are separated and whether the addition or converted garage ever shared air with the main house. One head can handle a large open area. Bedrooms with doors that stay closed usually need their own head if you want even temperatures. We will not sell you three heads if two will cover the space you actually live in. Head count is one of the decisions you make before the replacement day, along with exact wall placement and condenser location.

Is a mini split the wrong choice for some houses?

Yes. If you have ducts that already reach every room and you only need new central equipment, wall heads add clutter you may hate. If you dislike the look or the fan sound of an indoor unit, it is the wrong product. If a cheap repair will keep the existing Coleman unit working, replacement spends money you do not need to spend. If the electrical service cannot take the new condenser without a large panel job, the extra cost can make the whole idea poor value. We say those things before you hire us.

Who does the electrical work and is the job permitted?

ATX Mini Split King is an independent HVAC and electrical contractor. The same company can evaluate the existing disconnect and circuit, run a new one if needed, and land the connections. That extra electrical is quoted before work if it is required. Work is done to code by a TDLR licensed contractor. If the city wants a permit for the change we handle that as part of the process. You should ask every installer the same questions so you know who is actually on the tools and who is responsible when the inspector shows up.

Keep reading

Every replacement guide we have written is listed on the replacement guide hub. Next door to this page: replacing any brand of failing ac in austin, replacing a failing mitsubishi unit in austin. Pricing, service area and the quote form all live on the ATX Mini Split King home page, and the Austin mini split cost guide covers what the rest of the market charges.