Sunrooms Cost in Downey, CA in 2026
Most Sunrooms projects in Downey, CA cost between $28,000 and $105,000. The typical price is $58,000.
Labour and materials in Downey run about 24% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Three-season versus fully conditioned four-season
- Foundation type — slab, piers or existing deck
- Glazing performance
- Whether HVAC is extended into the space
Usually included
- Foundation and framing
- Glazing and roof panels
- Electrical rough-in and finish
Usually extra
- HVAC extension
- Permits
- Interior finishes beyond basic
Unit prices in Downey, CA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $140 |
| Mid-range | $290 |
| High-end | $520 |
Sunroom builders in Downey, CA
Businesses listed on Google near Downey, CA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Everyday Patio
5.0(60 reviews)
6528 Greenleaf Ave Ste 212, Whittier, CA 90601
SoCal Home Upgrades
4.9(65 reviews)
1012 W Beverly Blvd, Montebello, CA 90640
Horizon Sunrooms
4.9(40 reviews)
17011 Beach Blvd 9th floor, Huntington Beach, CA 92647
Cornejos Builders ADU Construction & Home Building
4.7(38 reviews)
8909 Elmont Ave, Downey, CA 90240
Domus Design Build
5.0(28 reviews)
8041 Florence Ave Ste 208, Downey, CA 90240
Four Seasons Sunrooms
4.5(17 reviews)
765 S State College Blvd Suite I, Fullerton, CA 92831