New AC, Installed Right the First Time
Quiet, efficient cooling sized and installed correctly by licensed C-20 professionals — with honest pricing and a lifetime guarantee.
- Licensed C-20 HVAC Contractor (#1094200)
- 25 Years Serving LA & Orange County
- 24/7 Emergency Service
- Parts & Labor + Lifetime Guarantee
- Ask About Current Discounts
Request Fast Service
Tell us what you need — we respond quickly, 24/7.
Right-sized for your home
We size the system to your home so you get even comfort and lower bills — not a guess.
Clean, professional install
25 years of installs done to code, done right, done once.
Lifetime guarantee
Our installation work is backed by a lifetime guarantee.
A new air conditioner is only as good as its installation. United Heating & Air Conditioning sizes, installs, and commissions your system properly so it runs efficiently and quietly for years — across all of LA and Orange County.
Frequently Asked Questions
How do I know what size system I need?+
We assess your home and recommend the right capacity — oversizing and undersizing both cause problems, so we size it correctly.
Is the installation guaranteed?+
Yes — our install work carries a lifetime guarantee, plus a parts & labor guarantee.
Do you offer discounts?+
We have discounts available — ask us what current offers apply to your project.
How long does an install take?+
Most residential installs are completed in a day. We'll give you a clear timeline up front.
Ready when you are — 24/7
Serving all of Los Angeles County & Orange County. Licensed C-20, 25 years.
Call (818) 817-6005