AC Installation & Replacement for Your Home
An AC that keeps breaking is tiring. It costs money every summer. It may also cool unevenly or run loud. At some point, a new system makes more sense than another repair.
Demandsweeks Heating & Air is a referral service. We do not install anything ourselves. We connect homeowners in Pittsburgh and the Pittsburgh area with independent local providers who do. You can hear a few plans, weigh the prices, and decide with no obligation. This page explains the signs, the system types, sizing, and the questions to ask. Plain answers first, so you can feel sure about your choice.
Is it time for a new AC?
Start with one simple question. Is the unit old, costly to fix, or both? Most central air systems last about 12 to 15 years. After that, parts wear out fast.
Here is a common rule of thumb. If a repair costs close to half the price of a new system, and the unit is past 10 years old, replacement often wins. Ask each provider to show the math. Then you can compare.
Signs your AC may need replacing
Catch it early. Small signs often come before a big failure.
- Your cooling bills climb, but your habits did not change.
- The house feels sticky even when the AC runs.
- Some rooms stay warm while others get cold.
- The unit is loud, rattles, or short-cycles. That means it turns on and off again and again.
- You have paid for two or more repairs in a short time.
- The unit uses an older refrigerant (the fluid that carries heat out of your home) that is being phased out.
One sign alone may not mean much. Two or three together are worth a closer look.
Check the age and the paperwork
Find the label on the outdoor unit. It lists the model and often the build date. Write it down. A provider can use it to tell how old the system is and what parts it needs.
If the system is in a short cooling season climate, it may look newer than it is. It sits idle for months, but age still counts. Rust, worn fan motors, and cracked wiring can build up through cold, snowy winters.
Types of cooling systems
There are a few common choices. Each fits a different home.
Central air
A central system sends cool air through ducts (the metal tubes in your walls and ceilings). It works well if your ducts are in good shape.
Ductless mini-split
This system has no ducts. A small outdoor unit connects to wall units inside. Many older homes, multi-family buildings, and Cape Cod style houses use this type because ducts are hard to add.
Heat pump
A heat pump cools in summer and can heat in winter. Ask a provider if one suits your climate and your current heating setup.
Why proper sizing matters
Size means cooling power, not how big the box looks. A unit that is too big cools fast, then shuts off. It leaves the air damp and clammy. A unit that is too small runs all day and never catches up.
A good provider measures your home. They check the square footage, windows, insulation, and sun exposure. This is often called a load calculation. Be wary of anyone who picks a size by looking at your old unit alone.
What an installation includes
A full job is more than swapping a box. Ask what is in the quote.
- Removing and safely handling the old unit and its refrigerant
- Setting the new outdoor unit on a level pad
- Connecting the indoor coil, lines, and drain
- Wiring, a disconnect switch, and a thermostat
- Testing airflow, pressure, and cooling before the job ends
Some jobs also need duct repair or a new drain pump. Ask for these items in writing.
Matching the system
Your indoor and outdoor parts should work as a pair. A mismatched coil and condenser can waste energy and wear out sooner. Ask the provider to name the exact models they plan to use.
Check your ducts too. In older homes, ducts may leak or run through damp basements. New equipment will not fix leaky ducts. A provider can test them and tell you what they find.
Efficiency in plain terms
You will see a number called SEER. It stands for seasonal energy efficiency ratio. A higher number means the unit uses less power to cool. That can lower your bills over time.
A higher number also tends to cost more up front. Ask each provider to compare two models. Look at the price gap and the likely savings. In places with a short cooling season, a very high rating may take longer to pay back.
Questions to ask the provider
Bring a short list to every visit. Use the same list each time, so the quotes line up.
- Did you measure my home before picking a size?
- Which exact models are in the quote?
- What does the warranty cover, and for how long?
- Are permits, old unit removal, and duct work included?
- What is the timeline, and what could change the price?
- Is there any pressure to sign today?
A calm provider will answer all of these. If you feel rushed, that is a sign to compare more quotes.
Compare, then decide
Get two or three written quotes. Look past the bottom line. Compare the size, the models, the parts, and the warranty. Take your time. There is no obligation to pick anyone.
Some policies may cover sudden damage to a system, but wear and age are usually not covered. Check your policy if you think a storm or power surge caused the failure.
What's Included
Old Unit Removal
The provider takes out your worn system and handles the refrigerant the right way.
Sizing Check
Most providers measure your home first, so the new unit fits the space.
New Equipment Setup
Outdoor unit, indoor coil, lines, wiring, and thermostat get connected as a set.
Testing and Walkthrough
The provider checks cooling and airflow, then shows you how it works.
What AC Replacement Costs
Prices vary by home, size, and brand. These are typical U.S. ranges only. Ask each provider for a written quote that lists every item, so you can compare fairly.
| Item | Typical range | Notes |
|---|---|---|
| Central AC replacement | $5,000 – $12,000 | Depends on size, brand, and efficiency |
| Ductless mini-split (one zone) | $3,000 – $6,500 | Good for homes without ducts |
| Heat pump system | $6,000 – $14,000 | Cools and heats; costs vary widely |
| Duct repair or sealing | $500 – $2,500 | Needed if ducts leak or are damaged |
| New thermostat | $150 – $600 | Smart models cost more |
| Electrical or pad upgrades | $300 – $2,000 | Only if your setup needs them |
How It Works
Tell Us What's Happening
Request a callback or use the request form. Share what your AC is doing and how old it is.
Get Connected Locally
Demandsweeks Heating & Air matches you with independent providers in Pittsburgh who handle AC installation.
Compare Written Quotes
Look at size, models, warranty, and price side by side before you choose.
Choose at Your Pace
Pick a provider, or say no. The choice and the work agreement are yours.
Why Call Demandsweeks Heating & Air
Compare Before You Commit
Hear a few plans and prices first. You decide when you are ready.
Local Providers
Providers in our network work near you and know area homes.
Plain Answers
Ask your questions. Good providers explain terms in simple words.
No Obligation
Requesting an estimate does not mean you must hire anyone.
Other Services
Need ac installation & replacement in Pittsburgh?
Tell us what your system is doing. Request an estimate, or Request a callback to check provider availability. Compare your options and decide when you are ready.
No obligationAC Installation & Replacement FAQ
How do I know if I should replace my AC or repair it?
Check the age, repair price, and how often it breaks. If the unit is over 10 years old and repairs are costly, replacement may make sense.
How long does an AC installation usually take?
Many installs take one to two days. Time depends on the system type, the ducts, and any extra work. Ask the provider for a timeline in writing before you agree.
Does homeowners insurance pay for a new AC?
Usually not for age or wear. Some policies may cover sudden damage, such as from a storm or surge. Check your policy, and providers can often help document damage for a claim.
Request a callback
Tell us what your system is doing. Request an estimate, or Request a callback to check provider availability. Compare your options and decide when you are ready.
No obligation