AC Installation and Replacement Done Right

Replace the AC if it is old, the repair bills keep coming, and the house still feels sticky. Repair it if the unit is young and the fault is small. A local provider can tell you which one fits your home.

Gottavia Heating & Air is a referral service. It connects homeowners in the Wixom area with independent HVAC providers in our network. The providers do the work. This page shows what drives the price, which system types exist, and what a good install includes. Read it, then get a written quote before you agree to anything. Price it first. Then pick the option that fits your house and your budget.

Repair or replace? Start here.

Replace the AC if it is old, the repair bill is large, and the same trouble keeps returning. Repair it if the unit is young and the fault is small. That is the short answer.

Here is a common rule of thumb. If a repair costs more than about a third of a new system, look hard at replacing. If the unit is 12 to 15 years old and a major part has failed, replacement usually makes more sense. A provider can check both points on site.

Is your AC down in a heat wave right now? Ask about emergency AC repair first. A repair can bridge the gap while you plan a proper replacement.

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Signs your AC is near the end

One sign alone is not a verdict. Two or three together are a strong hint.

• The unit is past 12 to 15 years old.
• You paid for repairs two summers in a row.
• Some rooms stay warm while others feel cold.
• The air feels damp even when the AC runs.
• You hear banging, grinding, or squealing.
• Power bills climb with no change in how you live.
• The system uses an older refrigerant that is now costly to refill.

Humid summers make weak cooling easy to spot. An AC that cools the air but cannot pull out moisture leaves the house clammy. That points to age or poor sizing.

Price it first

Cost is the heart of this choice, so look at it before anything else. Several things move the number:

• The size of the system
• The efficiency level you pick
• The condition of your ducts
• How hard the unit is to reach, such as a tight attic or basement
• Permits and local labor rates
• Whether the indoor coil and blower must change too

Two homes of the same size can get very different quotes. That is normal. Quote in writing, and make sure it lists equipment, labor, permit fees, and removal of the old unit. The table further down shows typical U.S. ranges. Your job may land above or below them.

Know your options

You have more than one path. Here are the common ones.

• Central split system. An outdoor unit and an indoor coil that share your existing ducts. This is the most common swap.
• Heat pump. One system that cools in summer and heats in winter. Cold winters with deep frost call for a model built for low temperatures, or a backup heat source.
• Ductless mini-split. No ducts needed. It suits bungalows, additions, and older frame houses where ductwork is poor or missing.
• Packaged unit. Everything sits in one cabinet outside. It is less common in homes with basements.

If your furnace is also old, ask the provider whether doing both heating and cooling together makes sense. Searching for furnace replacement near me is a separate job with its own steps, but a provider can price the two side by side.

Why size matters

Bigger is not better. An oversized AC cools fast, shuts off, and starts again. That short cycling leaves the air humid and wears parts out. An undersized AC runs nonstop and never catches up.

Ask for a load calculation. It looks at your square footage, insulation, windows, and ducts. Do not accept a quote that only copies the size of the old unit. Homes change over the years, and the right size may not match what was there before.

What an installation includes

A full install is more than swapping a box. Expect the quote to cover:

• Removal and proper disposal of the old unit and refrigerant
• A new outdoor pad or mounting, level and stable
• Refrigerant lines, wiring, and a drain line
• A check of ducts for leaks and airflow
• A thermostat setup
• Start-up testing and a walk-through

If an item is missing from the quote, ask about it. Do not assume.

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Match the indoor and outdoor parts

The outdoor unit, indoor coil, and blower should work as a set. A mismatch cuts efficiency and can cause early failure. It can also affect the equipment warranty. Ask the provider to list model numbers for every part, then confirm they are rated to work together.

Efficiency in plain terms

Efficiency is shown as a SEER2 number. A higher number means less power used for the same cooling. The higher the number, the higher the price tag.

Is it worth it? In a long, hot, humid summer, often yes. In a home you will leave soon, maybe not. Ask the provider to show the price gap between two models and a rough yearly energy difference. Treat those figures as estimates, not promises.

Hail, storms, and spring water

Your outdoor unit takes the weather. Hail can bend the fins. Thunderstorm surges can damage the electronics. Low spots in the yard can flood the pad in spring.

Ask the provider about a raised pad, a hail guard, or a surge protector. If your air handler sits in a basement with a sump pump, mention that too. Some policies may cover sudden storm damage, so check your policy. Providers can often help document damage for a claim.

Questions to ask the provider

• Did you do a load calculation, or are you matching the old size?
• What brand and model numbers are in the quote?
• Are permits, disposal, and the thermostat included?
• What does the equipment warranty cover, and what does labor coverage look like?
• Will the ducts be checked or sealed?
• When can the work start, and how long will it take?

Get two or three written quotes if you can. Compare line by line, not just the bottom number.

Know your options on timing

Not every replacement is a rush. If the unit still cools, you may have time to compare quotes and book in a quieter season. If it has died in peak heat, you may choose a quicker path. Request a callback to check provider availability in your area.

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What's Included

Old unit removal

The provider takes out the failed system and recovers the refrigerant the proper way.

New equipment

Outdoor unit, indoor coil, and parts matched to work together as one set.

Lines and wiring

Refrigerant lines, power, and drain connections are fitted to the new system.

Testing and walk-through

The provider tests airflow and cooling, then shows you how it works.

Typical AC replacement costs

These are typical U.S. ranges. Your price depends on home size, ducts, access, and the equipment you pick. Quote in writing before you say yes to any job.

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How It Works

Tell us your situation

Share your home type, the age of the AC, and what it is doing now.

Get matched with providers

A local provider in our network follows up to talk through your options.

Review the written quote

Check equipment, size, labor, permits, and removal. Ask questions before you agree.

Choose and schedule

Pick the provider and system you trust. The provider sets the install date.

Why Call Gottavia Heating & Air

Price it first, plainly

See what drives the cost before you sign. Ranges, not guesses.

Written quotes

Each quote lists parts, labor, and fees so you can compare line by line.

Local providers

Independent providers in our network know the area's heat, humidity, and storms.

No obligation

Request an estimate, read it, and decide on your own schedule.

Other Services

• AC Repair
• Furnace Repair Services