How do I know if I should replace my AC or repair it?
Look at the unit's age, the repair price, and how often it breaks. An old unit with a big repair bill often points to replacement.
A new air conditioner is a big purchase. It helps to slow down and learn the basics first. What types exist? What size fits your house? What should the quote list? Salesboots Heating & Air explains these points in plain words so you can talk with a provider and feel sure.
Salesboots Heating & Air is a referral service. It does not install anything. It connects you with independent providers in our network who serve the Thornton area. They visit, measure, and give you a quote in writing. You compare, ask questions, and choose. There is no obligation to hire anyone. If your cooling is down right now, a provider may be able to suggest a quick fix first, so you can plan the bigger job with a clear head.
Is it time for a new AC?
Your AC quit. Or it limps along and bills keep climbing. Either way, you face one choice: fix it or replace it. This page helps you sort that out.
Salesboots Heating & Air is a referral service. It does not do the work. It connects you with independent providers in our network who do.
If the unit dies in a heat wave, ask about emergency AC repair first. A small fix may buy you time. Then you can plan a replacement without rushing. Many providers can respond quickly, but availability varies. Request a callback to check provider availability.
Signs your AC is near the end
No single sign is a verdict. Two or three together usually point to replacement.
- The unit is 12 to 15 years old, or older.
- Repair bills keep coming back.
- Rooms stay warm even when the system runs all day.
- Your power bill climbs and nothing else changed.
- You hear grinding, banging, or loud buzzing.
- It uses R-22, an old refrigerant (the fluid that moves heat out of your home). It is being phased out and costs more to refill.
- The air feels sticky, even when the unit runs.
Repair or replace? A simple rule
Many providers use a rough rule. Multiply the repair price by the unit's age in years. If the answer is above about $5,000, replacing often makes more sense.
It is only a rule of thumb. Ask the provider to show the numbers in writing. Then decide.
A repair fits when the unit is fairly young and the part is small. Replacement fits when the unit is old, the fix is big, or the system was never the right size.
Types of cooling systems
Here are the common choices:
- Central split system. An outdoor unit and an indoor coil share your ducts. This is the most common setup.
- Heat pump. One machine that cools in summer and heats in winter. Ask about it if you want heating and cooling from one system.
- Ductless mini-split. A small outdoor unit feeds wall units in single rooms. It suits homes or additions with no ducts.
- Packaged unit. All parts sit in one outdoor cabinet. Some homes with little indoor space use these.
A newer frame house with ducts often fits a central split. A finished basement or add-on room may suit a mini-split. Ask the provider why they pick one over another.
Why proper sizing matters
AC size is counted in tons. A ton is a unit of cooling power, not weight.
A unit that is too big cools fast, then shuts off. The air stays damp and the parts wear out sooner. A unit that is too small runs nonstop and never catches up.
A careful provider does a load calculation. That is a math check of how much heat your home gains. It looks at windows, insulation, ceilings, and sun. Be wary if someone picks a size just by copying the old unit.
Sun, altitude, hail, and snow
Strong sun at altitude can bake south and west rooms. Ask how the provider counts that in. Thin air can also change how much a unit can deliver, so ask if they plan for your elevation.
Where the outdoor unit sits matters too. Hail can dent the coil, so ask about a guard or a covered spot. Snow sliding off a roof can crush a unit. Fast spring melt can pool water, so a raised, level pad helps.
What an installation includes
A full job usually covers these steps:
- Remove the old unit and recover its refrigerant the legal way.
- Set the new outdoor unit on a level pad.
- Connect the indoor coil, refrigerant lines, and drain.
- Wire the system and set up the thermostat.
- Test it, check the charge, and clean up.
- Pull a permit if your area requires one.
Ask the quote to list each item. Know your options, then check the list.
Match the whole system
Replacing only the outdoor unit can leave you with a mismatch. An old indoor coil may not pair well with a new outdoor unit. That can cut performance and may affect the warranty.
Ask if the provider will check the coil, thermostat, and ducts. Leaky ducts waste cool air, so even a great unit can feel weak.
If your furnace is old too, you may type "furnace replacement near me" next. Many providers handle both. Ask whether one visit and one HVAC service plan could cover your needs. Keep this page's focus on cooling, and treat heating as a separate quote.
Efficiency in plain words
Efficiency tells you how much power a unit uses to cool your home. The label is SEER2. A higher number means less power for the same cooling.
Higher numbers usually cost more up front. They may trim your bills over time. How fast depends on how much you run the AC.
Ask the provider for two or three options at different efficiency levels. Ask what each one may cost to run. Also ask your utility if any rebates exist.
Questions to ask a provider
Ask before you agree. Here are good questions and what a solid answer sounds like:
- How did you pick this size? Look for a load calculation, not a guess.
- What is in the price? Look for a written list of parts, labor, permit, and cleanup.
- Who does the work? Look for a clear answer about who will be at your home.
- What does the warranty cover? Look for parts and labor terms in writing.
- Can I see two options? Look for a willingness to compare.
Red flags
- A price quoted over the phone with no visit.
- Pressure to sign today.
- No written quote.
- No size math.
- A big deposit asked up front.
- A refusal to say who does the work.
Walk away if you see any of these. A quote in writing protects you.
Take the next step
You do not need to decide today. Learn the options, gather two quotes, and compare them side by side. Request a callback to ask about providers in our network, or use the form to request an estimate. There is no obligation.
What's Included
Site Visit
A provider checks your home, ducts, and old unit before suggesting a size and system type.
Sizing Math
The provider runs a load calculation so the new unit matches your home.
Removal & Setup
The old unit comes out, and the new one goes onto a level pad.
Testing & Cleanup
The provider tests cooling, checks the charge, and leaves the area tidy.
What Replacement May Cost
Prices vary a lot by home, brand, and size. These are typical U.S. ranges only. Ask each provider for a written quote that lists every item.
| Item | Typical range | Notes |
|---|---|---|
| Central AC replacement | $5,000 – $12,000 | Depends on size, brand, and duct work |
| Heat pump replacement | $6,000 – $15,000 | Cools and heats in one system |
| Ductless mini-split (one room) | $3,000 – $7,000 | Each added room costs more |
| Indoor coil replacement | $600 – $2,500 | Often paired with a new outdoor unit |
| Thermostat upgrade | $150 – $600 | Smart models cost more |
| Duct sealing or repair | $500 – $2,500 | Depends on how much needs work |
How It Works
Tell Us Your Situation
Request a callback or use the form to share what your AC is doing and how old it is.
Get Matched With Providers
A local provider in our network reaches out to set up a visit.
Compare Written Quotes
Review the size, system type, parts, and price. Ask questions before you agree.
Choose And Schedule
Pick the provider you trust, then agree on a start date that fits you.
Why Call Salesboots Heating & Air
Options Explained Before You Commit
You learn the choices in plain words first, so quotes make sense when they arrive.
Independent Local Providers
Providers in our network serve your area and do the work themselves.
Quotes In Writing
Ask each provider to list parts, labor, and permit costs so you can compare.
No Pressure
Requesting an estimate carries no obligation. You choose if and when to hire.
Other Services
Need ac installation & replacement services in Thornton?
Have a heating or cooling problem in the Thornton area? Ask for a callback or send a quick request. A local provider can follow up with next steps. No obligation.
No obligationFAQ
AC Installation & Replacement Services FAQ
How long does an AC installation take?
Many central AC swaps take about one day. Jobs with new ducts, a new coil, or a mini-split in several rooms can take longer. Ask the provider for a time estimate.
Does the size of the new AC really matter?
Yes. A unit that is too big shuts off too soon and leaves the air damp. One that is too small runs nonstop. Ask for a load calculation.
Contact Us
Request a callback
Have a heating or cooling problem in the Thornton area? Ask for a callback or send a quick request. A local provider can follow up with next steps. No obligation.
No obligation