Inspecting the window frame and surrounding area to ensure compatibility and safety.
Unpacking and preparing the air conditioning unit for installation.
Securing the AC unit into the window frame with brackets and hardware for stability.
Applying proper sealing and insulation to prevent air leaks and maximize efficiency.
Connecting the AC unit safely to a power source.
Ensuring the system powers on, cools properly, and operates safely.
We handle the entire process — site inspection, unit preparation, professional mounting with brackets, sealing and insulation, electrical connection, testing, and final cleanup — for a seamless installation experience.
Trust City21 Construction for reliable, fast, and high-quality standard window AC installation services throughout the SF Bay Area. Stay comfortable and enjoy efficient cooling with our expert service.
Yes, you can provide the unit, and we will professionally install it for you.
We install in most standard windows; however, we’ll assess the structure to ensure proper fit and safety.
Most standard window AC installations take 30–60 minutes.
Yes, we properly seal and insulate around the unit to prevent leaks and improve efficiency.