Twelve to fifteen years is what most central air conditioning systems deliver. Past that window, repair costs climb and the unit works harder for the same output. Calgary Air Heating and Cooling Ltd assesses what you have and gives a straight answer on whether replacement makes sense, or whether fixing the existing unit is still the right call. Honest read. No upsell.
An air conditioning replacement is not always the answer. Single fault on a six-year-old unit with an active warranty? Fix it. R-22 system past twelve years with two repair calls this summer? Different situation. The assessment covers both directions.
12 to 15 years is the run most units get here. Some pass that comfortably on steady maintenance. Others start costing money at year eight because they were oversized, undersized, or never serviced.
Age on its own does not decide it. A well-maintained 14-year-old unit still cooling properly on a reasonable power draw is not an emergency. A 10-year-old unit that has needed two calls in one season is.
The pattern worth watching is repair frequency, not repair cost. One capacitor at year eleven means nothing. A capacitor, then a contactor, then a refrigerant leak inside eighteen months means the whole system is arriving at the end together.
Multiply the age of the air conditioner by the cost of the repair in front of you. Past roughly $5,000, replacement is generally the better spend. People call it the $5,000 rule.
Twelve-year-old unit facing a $500 repair: 12 × $500 = $6,000. That tips toward replacement. Same $500 job on a five-year-old system: $2,500, and it is clearly worth fixing.
Not a hard rule. It ignores whether the part that failed is the expensive one and whether the rest of the system is sound. Still a useful way to frame a decision most homeowners avoid until something quits in July.
What actually changes the answer is the compressor. Compressor failure on an out-of-warranty air conditioner is usually the end of it, because the part and the labour approach the cost of a new system and the rest of the unit is the same age as the part that just died. Almost anything else is worth pricing as a repair first. Symptoms and typical repair costs are on the AC repair page.
R-22 refrigerant was phased out in Canada in 2020.
Systems built before roughly 2010 mostly run on it. Nothing switches off because of a phase-out, so those air conditioners keep cooling until they leak. Then the problem arrives, because topping up an R-22 system now means paying reclaimed-stock prices for refrigerant that goes back out through the same leak.
Topping up is renting the problem. A leaking R-22 unit gets recharged, works for a season, and is back in the same state the following June. At that point the money spent on refrigerant would have gone toward the replacement that was coming anyway.
Not sure what your system runs on? The data plate on the outdoor unit says. A technician can read it in about a minute during any service visit.
Rising power bills with no change in how you use the air conditioner. A failing compressor draws more current to do less cooling, and that shows up on the bill months before it shows up as a breakdown.
Rooms that used to cool and now do not. Uneven cooling across a floor points at airflow or at a system losing capacity.
Ice on the refrigerant lines. That is low charge or restricted airflow, and on an older air conditioner it is frequently a leak that will not be worth chasing.
Noise that was not there last year. Grinding, screeching, or a hard clunk on startup are all mechanical, and mechanical noises on a 12-year-old unit rarely get better.
Two or more repair calls inside a single cooling season. On an eight-week season, that is a lot of failures in very few running hours.
Different job from a first-time install, and usually a faster one.
The old air conditioner gets its refrigerant recovered properly rather than vented, which is both the law and the reason a replacement is not a do-it-yourself weekend. Condenser comes out. Old evaporator coil comes off the furnace plenum. New coil goes on, new condenser goes on the pad, and the line set either gets reused or replaced depending on its condition and whether the refrigerant type is changing.
That last part matters. Moving from an R-22 system to a modern refrigerant means the old line set has residual mineral oil in it that is not compatible with the new one. Sometimes it can be flushed. Sometimes the lines have to be replaced, and a quote that does not address it has not thought about it.
Most replacements finish in a day. Thermostat gets rewired if the old one is not compatible, charge is set to manufacturer spec, and airflow is verified room by room before anyone leaves.
Common assumption: match what was there. Reasonable, and frequently wrong.
Houses change. New windows, added attic insulation, a finished basement, a removed wall. Each of those moves the cooling load, and a house that has had its windows done since the original air conditioner went in may genuinely need less capacity than it did in 2011.
The other case is the unit that was wrong from the start. Plenty of systems get sized off square footage alone, and a replacement is the opportunity to fix a mistake that has been running for a decade. If the old air conditioner short-cycled or never kept up, matching it repeats the problem for another fifteen years.
A load calculation at the assessment answers it. It takes an extra twenty minutes and it is the difference between a system that works and one you live with.
$3,500 to $6,500 installed covers most replacements, unit and labour included. A 2,000 square foot home usually lands nearer $4,000 to $5,500.
Replacement sometimes runs slightly under a first-time install, since the ductwork, the pad, and the electrical circuit are already there. It runs over when the line set needs replacing, when the panel needs work, or when the old equipment was installed somewhere awkward.
Written quote before anything starts. Financing on request. No obligation assessment if you want the repair-or-replace answer before committing to either. The AC cost guide has the fuller pricing breakdown.
Spring, if you have the choice.
Replacements booked in April or May get scheduling flexibility, full equipment availability, and a proper sizing conversation. Replacements booked on a 32-degree Thursday in July get whatever is in the warehouse and a wait.
Furnace also past 15 years? Price both together. They share the air handler and the ductwork, so replacing the pair on one visit costs less than two separate jobs a year apart. Once the new system is in, annual maintenance is what gets it to the far end of its lifespan instead of the near end. The air conditioning services page covers the full range of work.
Licensed, insured, 100% Canadian. Manufacturer warranties on every unit installed. Free quotes on replacements and no obligation assessments where the decision is not clear. Evening and weekend appointments available. Calgary, Chestermere, Cochrane, and Okotoks.
Call (403) 720-0003 for a straight answer on whether your air conditioner is worth another repair.
One day for most homes. The ductwork and circuit are already in place, so the work is removal, installation, and commissioning. Line set replacement or panel work can add time.
Rarely a good idea. The condenser and the evaporator coil are matched as a system, and pairing a new outdoor unit with a ten-year-old indoor coil costs efficiency, can void the warranty, and often will not hit rated capacity. It also leaves half the system aging out on its own schedule.
Refrigerant gets recovered under regulation, and the equipment is removed and recycled as part of the job. Nothing is left in the yard.
Against a failing or badly sized old one, noticeably. A modern compressor delivers the same cooling on less power, and a correctly sized system stops running flat out to keep up. The saving is real but it is a saving across an eight to ten week season, so it is not what pays for the unit on its own.
If it is past 15 years, price it. Shared air handler and shared ductwork mean one visit instead of two, and the combined job costs less than the two jobs separately. If the furnace is under ten years old, there is no reason to touch it.
The data plate on the outdoor unit lists the refrigerant type. Anything installed before about 2010 is likely on R-22. Worth checking before paying for a recharge on a system that leaks.
If the old one was correctly sized and simply worn out, expect similar cooling on less power rather than dramatically colder air. If the old one was the wrong size, the difference is obvious in the first week. Homeowners who lived with a short-cycling unit for years are the ones who notice most, because the house finally stops feeling damp.
Rarely needed. Ducting that moved air adequately for the old system generally handles the new one. Undersized returns are the exception, and they get flagged at the assessment rather than discovered afterward. Modifying a return is a modest job next to the cost of the system.
You will always get upfront pricing on all our professional services. Also, you will get free replacement quotes on heating and cooling. Apart from Calgary, the other areas we cover are Chestermere, Cochrane, Okotoks, Rural Communities, etc.
