Sacramento Sunroom Builders

We provide custom aluminum sunrooms for Bay Area and Sacramento homeowners, designed, permitted, and installed by our sunroom builders.

Why Aluminum Sunrooms Are Built for California Living

Aluminum doesn’t warp in heat, won’t rot in moisture, and holds its finish for decades without repainting. That matters when your room has to perform through the Central Valley’s 100°F summers and the Bay Area’s marine layer. Vinyl expands and contracts with temperature swings; wood demands ongoing upkeep; aluminum holds its form.

Not only does Four Seasons offer you the largest and most complete product range in every architectural style, but we also offer the largest choice of structural materials: sleek aluminum, efficient vinyl, and warm, inviting natural wood. For most sunrooms in Sacramento and the Bay Area, aluminum delivers the strongest long-term value, and the Four Seasons 230 system’s thermally broken extrusions ensure the frame itself won’t transfer heat or cold between inside and out.

Four Seasons Sunrooms & Windows logo with colorful square pattern.
Logo for Conservaglass NXT by Four Seasons, featuring a stylized square graphic with orange, pink, green, and blue sections.
Enlargeable Image: Translucent Louvers

Our Featured System: The Four Seasons 230 Aluminum Sunroom

Nothing transforms a home like a sunroom. Space is added. Sunlight and nature are brought in, but even more so, family fun just seems to follow. Your sunroom becomes a bright, friendly place for gatherings, game nights, parties, quiet chats, or time alone.

Designed for year-round living, our aluminum sunroom wall panels can be customized to fit your lifestyle and enhance the beauty and value of your home. Traditional and contemporary sunrooms and conservatories will add light, elegance, and a spacious feel that blends perfectly with any style of home.

All of our conservatory and sunroom designs come in a variety of sizes, roof and frame finishes, door choices, and many other features, all of which can be discussed with one of our design consultants.

Sunroom Design Styles

Glass Overview: CONSERVAGLASS™ NXT with Stay-Clean Technology

Your sunroom’s glass performance is the foundation of your sunroom satisfaction. It determines whether your new room is comfortable in January, livable in August, or neither.

Our Four Seasons sunroom contractors use CONSERVAGLASS™ NXT with Stay-Clean Technology, designed specifically for the extreme demands of a room built entirely of glass utilizing the most advanced glazing technology available. CONSERVAGLASS™ NXT helps make Four Seasons home sunrooms cooler in summer and warmer in winter, plus our advanced construction techniques promise a lifetime of outstanding performance.

Standard 7N glass achieves a U-factor of 0.25, compared to 1.10 for most competitors’ single-glazing. The triple-pane 9N configuration drops that to 0.15 with an R-Value of 6.67, and every unit carries a 40-year limited product warranty. Multi-layer construction manages solar heat gain, UV transmission, and infrared independently, with a Cold Weather Package available for homes in the Sacramento foothills or colder Bay Area microclimates.

FOUR SEASONS CONSERVAGLASS

Our 12 Layer Patented Formula with Stay-Clean Technology.

Ordinary Glass

(Hydrophobic)

Water beads higher on rough surface of ordinary glass causing more spots greater cleaning needs.

CONSERVAGLASS™ WITH STAY-CLEAN TECHNOLOGY (SUPERHYDROPHILIC)

The smooth surface disperses water evenly, removing dirt more quickly and reducing water spots.

Sunroom Glass Comparison
Code Description / Construction Transmittance (%) Reflectivity (%) Shading Coefficient
(Lower is better)
Solar Heat Gain Coefficient
(Lower is better)
Solar Heat Gain
(Lower is better)
U-Value
(Lower is better)
R-Value
(Higher is better)
Visible Light Solar Ultraviolet Infrared Visible Outside Visible Inside
FOUR SEASONS' STANDARD GLASS – CONSERVAGLASS™ – Exclusive High Performance Insulated Safety Glass.
Tempered safety glass which incorporates advanced exotic coating technology with Argon gas filling and exterior glass cleaning and protection features.
Ensures superior performance and life expectancy for years of comfortable, cost-effective year-round living. 40-Year full coverage Lifetime Limited Product Warranty.
7N MC-7N / Argon / Clear 39162131613 0.200.1843.20.254
9N MC-9N / Argon / 9N / Argon / 9N 56212151717 0.270.24570.156.67
9X MC-9X / Argon / 9X / Argon / 9X 684413211919 0.610.551240.156.67
15 MC-15 / Argon / Clear 157482424 0.140.12310.254
15L MC-15 / Argon / Laminated 156082525 0.140.12310.254
9E MC-7E / Argon / Clear / Argon / MC-79 57212141717 0.290.25610.205
95 MC-15 / Argon / MC-72 / Argon i89 125182124 0.110.09240.195.3
8 Grey Single Glazing 605837677 0.790.691721.100.9
COMPETITION'S GLASS – Single Glazing – Can only be used in unconditioned rooms designed for "part-time" use.
1 Clear Single Glazing 908373999 0.990.852131.100.9
2 Bronze Single Glazing 676439777 0.840.721831.100.9
4 Azurite Single Glazing (Blue) 774336888 0.670.571491.100.9
7 Green Single Glazing 764828788 0.710.611581.100.9
COMPETITION'S GLASS – Double Glazing – Does not allow for comfortable, cost-efficient year-round living. Still not energy efficient.
20 Clear / Clear 816958161616 0.880.751830.492
21 Bronze / Clear 615433111414 0.720.621510.492
23 Azurite / Clear (Blue) 703731131515 0.540.461150.492
COMPETITION'S OPTIONAL GLASS – High Performance Double Glazing – Year-round living but very costly and with an extended lead time.
30 Solar Cool Bronze / SG 500 22238372424 0.380.32810.352.8
Solar Cool Bronze / Argon / SB60VT 21113371717 0.230.20520.342.9
Solar Bronze / HM-44 / Clear 28140301414 0.240.21530.313.2
LoE² / Argon / Clear 723816111212 0.470.41970.263.85

Components

Door Options

Roof & Ceiling Options

Color Options

Accessories

Sunrooms in Sacramento: What California Code Requires

A sunroom is a structural addition under the California Residential Code (CRC), which means it requires a building permit before construction starts. Our sunroom builders manage the full permit process for every project, including plans, submissions, city correspondence, and inspections. It’s not an add-on service; it’s standard.

  • Foundation: Most sunrooms in Sacramento and across California need a solid foundation to support the walls, roof, and glass. The most common base is a concrete slab, but some designs use a raised deck or a small crawl space if possible. The California Residential Code (CRC) provides the rules for stability, load support, and proper footing for sunroom additions.

  • Permits: In California, a sunroom counts as a structural addition, so it needs a building permit under the CRC. The state requires review of foundation details, framing, electrical work, and overall safety before construction starts.

  • Title 24 Compliance: California’s energy code applies to any conditioned addition. Our glass and insulation specifications are selected to meet these requirements from the outset.

  • Square Footage: In some cases, a sunroom in California can be included in the square footage if it is a fully conditioned space. The sunroom must have the same heating and cooling as the rest of the house, be completely enclosed, and comply with the energy and structural requirements of the CRC and Title 24 energy standards.

If the sunroom has its own climate control or does not meet these requirements, appraisers in California might list it as extra living space, but not count it in the official square footage. If you’re weighing full enclosure against a covered outdoor space, our LifeRoom patio covers offer premium aluminum construction without the same permit requirements in most jurisdictions.

Sunroom Pricing in the Bay Area & Sacramento

California sunroom costs can run higher than the nationwide average due to local labor rates, energy code compliance, and permit fees. The final price depends on the size, type of glass, insulation, and how finished the room is. Here’s a realistic starting range for aluminum sunrooms and wall panels:

  • 20x20 (approx. 400 sq ft): Between $70,000 and $130,000. Four Seasons sunrooms with insulated roofs and energy-rated glass are usually at the higher end of this range.

  • 12x12 (approx. 144 sq ft): Between $25,000 and $55,000. Three-season rooms are usually at the lower end, while fully conditioned rooms built to Title 24 standards are at the higher end.

Not ready for full enclosure? Our patio covers for Sacramento and California homes offer a lower-cost outdoor living option worth comparing.

Schedule Your Free In-Home Design Consultation

Our design consultants serve the Bay Area and Sacramento. We’ll visit your property, assess your space, walk you through design options, and provide a clear, itemized quote. No pressure, no obligation.

Aluminum Sunroom FAQs