Sunrooms Cost in Fontana, CA in 2026
Most Sunrooms projects in Fontana, CA cost between $28,000 and $105,000. The typical price is $59,000.
Labour and materials in Fontana run about 27% 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 Fontana, CA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $140 |
| Mid-range | $295 |
| High-end | $525 |
Sunroom builders in Fontana, CA
Businesses listed on Google near Fontana, CA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Grand Canyon Patios, Inc.
5.0(272 reviews)
6244 La Sierra Ave, Riverside, CA 92505
specialty builders
4.3(416 reviews)
9161 Sierra Ave. Ste 201A, Fontana, CA 92335
Retro Windows and Patio Doors LLC
4.9(60 reviews)
9590 Catawba Ave, Fontana, CA 92335
Vision Sunrooms And Patio Covers
4.9(52 reviews)
30141 Antelope Rd Ste D, Menifee, CA 92584
Sun Boss Rooms & Baths
4.7(40 reviews)
3010 Vine St, Riverside, CA 92507
Rooms Covers 'N Solar
3.9(74 reviews)
12212 6th St, Rancho Cucamonga, CA 91730