AC Installation
New AC installed right, sized right, financed right.
Full system replacements and new installs in OC. Manual J load calculations, up-front pricing, 0% APR options.
About ac installation
AC installation covers full system replacements (condenser + air handler + new line set) and brand-new installs in homes that didn't have central air. The single biggest predictor of comfort and efficiency is correct sizing — we run a Manual J load calculation on every install. Cheaper companies skip this step and you live with the consequences for 15 years.
When to call us
Signs you need ac installation
If any of these sound like your situation, give us a call or text. Many of these are quick fixes if caught early.
- System is 12+ years old and breaking down regularly
- Repair bill is more than half the cost of replacement
- Uses R-22 refrigerant (phased out — refills are $$$)
- Energy bills have been climbing year over year
- Hot/cold spots in different rooms
- Buying a new home without central AC
- Major addition or remodel changed the load
How it works
Our process, step by step
In-home assessment
We measure your home, check ductwork, and run a Manual J load calculation. This determines the right tonnage — not a guess based on square footage.
Equipment recommendations
We present 3 options at different price/efficiency tiers. We tell you which one we'd put in our own house and why. No commission-driven pressure.
Schedule and prep
Most installs run 1 day. We protect floors, work clean, and haul the old unit away.
Install and commission
We pull a city permit, install per manufacturer spec, pressure-test refrigerant lines, and run a full commissioning test.
Walkthrough
We show you the new thermostat, schedule your first free maintenance visit, and register your warranty for you.
Why Coastline
What makes our ac installation different
- Manual J load calc on every install (most don't bother)
- Trane, Carrier, Lennox, Daikin authorized dealer
- 10-year parts + 1-year labor warranty
- Permit-pulled installs (some companies skip this — illegal in CA)
Common questions
FAQ
- How long does an install take?
- Most full replacements are a single day, 6–8 hours. Brand-new installs in homes without existing ductwork can take 2–3 days.
- Should I go with a heat pump instead of AC + furnace?
- Often yes — heat pumps now outperform gas furnaces in OC's climate and qualify for federal/state rebates that can cut 30–40% off the price. We'll lay out both options honestly.
- What size system do I need?
- It depends on insulation, windows, ductwork, ceiling height, and orientation — not just square footage. We run a Manual J calc so the system isn't oversized (short-cycles, humidity issues) or undersized (runs forever, can't keep up).
Ready to get started?
Free estimates, same-day appointments across Orange County.
Other services
AC Repair
Same-day diagnostics and repair. We carry parts for every major brand — Trane, Carrier, Lennox, Goodman, York.
Heating
Furnace repair, heat pump install, and emergency winter service when the cold snap hits.
Maintenance Plans
Twice-yearly tune-ups extend system life by 5+ years and slash energy bills by up to 30%.