New AC System in Brentwood: Written Estimate Before Any Work Starts
AC installation done right starts with understanding what is in the home. We inspect before we quote and quote before we start.
Request Service Online
Book through the form, and the callback from Brentwood dispatch arrives shortly.
What's Included
We measure the house, run the load calculation, and check the duct trunk and returns before quoting a single ton. Then we set a condenser where setbacks, HOA rules and the next bedroom window allow, and commission the system before we leave.
Why Choose Brentwood Air?
Experienced Technicians
Every visit is handled by an experienced HVAC tech
Same-Day Service
Quick response for urgent needs
Upfront Pricing
No hidden fees or surprise charges
System Tested With You
We run the system and walk you through the work
AC Installation in Brentwood: A New System Sized to Your House
Brentwood Air installs central air for Brentwood homeowners who are replacing a system that has stopped being worth repairing, or adding cooling to a house that never had it. The job starts with a load calculation for your house, not a guess from the old nameplate.
That matters here because the flat streets and the canyons run different loads. A ranch house on a lower street and an estate up Mandeville do not need the same tonnage, and the wrong size shows up later as short cycling, uneven rooms and a bigger electric bill.
If your current unit is down and you only want it running, call anyway. We write up the repair and the replacement side by side so you can compare them before you decide.
What Sets the Price of a New AC System
Most complete AC installations in Brentwood run between $6,200 and $11,500. Where your job lands in that range depends on a handful of things we measure at the visit.
| Item | What moves it |
|---|---|
| System size | Tonnage from the load calculation, and how many rooms the system has to reach. |
| Efficiency tier | A higher SEER2 rating costs more up front and changes the equipment line we price. |
| Ductwork | Original attic ducts often need a resized supply trunk and return before new equipment reaches its rated airflow. |
| Access | Narrow canyon roads and a pad cut below the house change how the equipment arrives and how the line set runs. |
| Electrical | A panel or disconnect that cannot carry the new unit adds scope. |
| Permit and testing | Mechanical permit work, plus duct sealing and a leakage test when the scope calls for it. |
What the Install Day Covers
Your written estimate lists each of these lines, so you see what the price is made of.
- Remove the old condenser, air handler and refrigerant, and set the new pad or stand.
- Set the new indoor and outdoor units and run the line set.
- Connect electrical, condensate drain and thermostat wiring.
- Seal and adjust duct connections that the new airflow depends on.
- Start up, check charge and airflow, and walk you through the controls.
Permits and Code in Brentwood
Brentwood is a City of Los Angeles neighborhood, so replacing an AC is permitted work through LADBS. Title 24 Part 6 can require duct sealing and a duct leakage test on a change-out, verified by a third-party HERS rater who is not the installer, depending on the scope of your job.
New residential split systems are now built with lower-GWP A2L refrigerants such as R-454B or R-32, so the equipment we quote is matched to that.
Equipment and Controls
We quote split systems and, where a room or addition has no duct, Daikin or Mitsubishi ductless heads from our ductless mini split service. Thermostats from Honeywell, Ecobee and Nest work with the new system, and the estimate says which one is included.
Book the Estimate Visit
The written estimate comes before any work starts, so you can read every line first. Tell us the address and what the current system is doing. Call (877) 702-9609 to set the visit.
Call (877) 702-9609AC Installation by city
Open a city-specific page when you want this service tied to local neighborhoods, ZIP coverage, and the housing notes that shape the visit scope.
CA
AC Installation in Brentwood
Brentwood splits between flat streets of 1950s ranch homes running their original attic ductwork and canyon estates up Mandeville and Kenter where narrow winding road access decides how equipment arrives and in how many pieces. On the canyon lots the condenser sits on a cut pad below the living space with real vertical rise back to the air handler, while the ranch homes below usually need the supply trunk and return resized before new equipment can reach its rated airflow.
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AC Installation in Bel Air
Bel Air estates sit behind private gates on steep canyon lots, so equipment is often staged well below the house and walked up, and the condenser ends up benched into the slope a long way from the air handler. Those distances turn line set sizing and refrigerant charge into a calculated part of the design, while screening requirements and estate landscaping usually settle where the outdoor units can sit before anything else is decided.
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AC Installation in Santa Monica
Santa Monica's beach bungalows and Art Deco apartment buildings were built without ductwork or any mechanical space, so multi zone mini splits with a head in each room and the condenser on a roof or rear pad are the standard retrofit. Lots are tight and neighbors are close, so sound output and setback clearance around the outdoor unit usually decide placement well before line set length does.
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AC Installation in Westwood
Westwood's 1920s Spanish houses have plaster walls, tile roofs and nowhere to run a duct chase, so a compact ducted air handler in a borrowed closet or concealed ductless heads beats opening soffits through finished ceilings. The condominium and rental buildings answer to association rules on rooftop and balcony equipment, wall penetrations and permitted work hours, and those rules shape the installation more than the load calculation does.
View local serviceRelated Services
AC Repair
When a repair call finds a tired system, we fix what is fixable and put repair against replacement on paper, so you decide with the numbers in hand.
Learn More →AC Maintenance
A seasonal visit for a newer system: coils, charge, drains and airflow checked against how it ran on install day, so small drift gets caught early.
Learn More →Ductless Mini Split
Ductless heads for guest houses, additions, ADUs and the rooms the old duct run never reached, with the line set routed so it stays out of sight.
Learn More →Pricing and Booking Guides
AC Replacement Near Me in Brentwood: Booking the Visit That Ends in a Written Quote
Here is how the replacement visit runs and what decides your number.
CoolingCentral Air Conditioning Cost in Brentwood, Line by Line
Central air in Brentwood mostly runs $6,200 to $11,500 installed. This is how each line on the quote moves that number, and when ductless prices out instead.
Heat PumpsHeat Pump Cost in Brentwood, Priced Next to a New Furnace
A ducted heat pump in a typical Brentwood Westside home runs $8,000 to $14,000. Gas furnace replacement runs $4,500 to $7,500. Get both on one written quote.
HeatingHVAC System Replacement in Brentwood: Heating and Cooling Done as One Project
When the furnace and the AC are both near the end, replacing them together saves a second tear-out. Here is how the combined quote is built.