Aluminum Sunrooms

The 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 the bright, friendly place for gatherings, game nights, parties, quiet chats or time alone.

Designed for year-round living, our solarium, patio enclosure and sunroom designs can be customized to fit your lifestyle and will enhance the beauty and value of your home. Traditional and contemporary sunrooms and conservatories will add light, elegance and a spacious look that will blend 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.

Not only does Four Seasons offer you the largest and most complete product range in every architectural style, we also offer you the largest choice in structural materials: sleek aluminum, efficient vinyl, and warm and inviting natural wood. Only Four Seasons gives you this much choice to fit your personal style and build that bonus room, creating a space for many good times to come.

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

The 230 Aluminum Sun & Stars

Greenhouse attached to a house with a garden and trees
Modern sunroom with white frame attached to a house, featuring glass walls and roof, surrounded by potted plants on a patio.
Sunroom with glass walls and ceiling, wooden dining table and chairs, surrounded by lush greenery.
Glass sunroom attached to a blue house with mountains in the background.
Modern sunroom with large glass windows, gray sofas, and autumnal forest view.
Modern brick house with large glass sunroom and mountain view
A sunlit conservatory interior with large glass windows and a view of a grassy field. There's a green cushioned bench with decorative pillows, a small glass table with a plant in a wicker basket, and a note on the window with text about performance i
Glass sunroom attached to a house, surrounded by a neatly landscaped garden with various plants and shrubs, and a lawn in the foreground.
Wooden deck with white railing, featuring patio furniture, an umbrella, and attached sunroom with large windows on a house exterior.
Modern house with a glass-walled sunroom, outdoor patio with white furniture, and surrounding greenery.
Winter scene featuring a cathedral sunroom attached to a house with snow-covered surroundings and trees.
Glass-enclosed dining area with a view of a lake and mountains, featuring a table with floral centerpiece, chairs, and a ceiling fan.
A decorated Christmas tree in a cozy living room with large windows, surrounded by wrapped gifts and comfortable furniture.
House with large sunroom and patio

Design Options

  • Modern indoor lounge with glass ceiling, large windows, sofa seating, and potted plants.

    Straight Eave Sun & Stars

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    Enjoy the view of your new home addition from both inside and out. Designed with the same straight eaves as most residential architecture, our System 4 Straight Eave looks like a part of your home, not just an add-on. Slim, strong aluminum profiles in a traditional design makes this room the choice for homeowners who desire clean, straight line and maintenance-free finishes.

  • Modern indoor lounge area with large windows, modular sofas, and potted plants.

    Straight Eave Sun & Shade

    Solid Insulated Roof with Full or Partial Glass Walls.

    Add beautiful space simply and easily with high-performance CONSERVAGLASS™ NXT and an energy-efficient, insulated roof system

    Installing an insulated patio room design by Four Seasons Sunrooms is a time-saving and wallet-friendly option for anyone mulling over the best ways to add square footage or enclose an existing space of their home.

  • Enclosed patio with glass ceiling, ceiling fans, table, chairs, plants, and starry night sky view.

    Curved Eave Sun & Stars

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    Four Seasons offers a sophisticated sunroom patio enclosure with an elegant curved eave, designed to complement your home's roofline. This iconic solarium, available in sleek aluminum or warm Northern White Pine, embodies elegance and innovation. With CONSERVAGLASS™ NXT for unmatched energy efficiency, safety, and durability, it ensures comfort all year round. Perfect for any setting, from urban lofts to country retreats, it seamlessly integrates with your home’s aesthetic.

  • Bright sunroom with large windows, beige sectional sofa, houseplants, round side tables, light wood flooring, and a light-colored armchair. Lush greenery visible outside.

    Cathedral Sun & Stars

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    Create breathtaking space with a Four Seasons Glass Roof Cathedral Room, which offers soaring space and energy-efficient features. An all ConservaGlass™ NXT front peaked wall, allows more light and greater views while creating a more spacious feel with expanded sight lines to the landscape beyond. Vaulted ceilings deliver an open airy sensation far beyond the actual space it occupies. This is a cathedral room that offers an unbroken panorama to your world while keeping you safe and sound inside.

  • Spacious living room with large windows showcasing a sunset view. The interior includes a tan sectional sofa with patterned pillows, potted plants, and small round tables. The sky outside displays vibrant pink and orange hues, with mountains visible in the background.

    Cathedral Sun & Shade

    Solid Insulated Roof with Full or Partial Glass Walls.

    The 230 Aluminum Sun & Shade Cathedral Room combines the grandeur of a cathedral ceiling with the energy efficiency of the Studio Room, making it a comfortable, light-filled retreat and a wise investment. Featuring CONSERVAGLASS™ NXT for increased light and expansive views, its vaulted ceilings create an open, airy feel. This solid roof cathedral patio room offers a seamless panorama, ensuring safety and an enhanced connection to the outdoors.

  • Modern enclosed patio with large glass windows, sliding doors, a paved walkway, and small evergreen trees in a landscaped garden.

    Walls Under

    Enclose Your Existing Patio With Full or Partial Glass Walls.

    The 230 Aluminum Wall System elevates your existing spaces by enhancing them with energy-efficient features, creating a cozy, light-filled retreat that's a smart upgrade for your home. With CONSERVAGLASS™ NXT, these walls ensure increased natural light and wider views, offering an open and airy atmosphere. Tailored to fit under your current roof structure, porch, or almost any covered area, they enable a panoramic experience that merges safety with a seamless outdoor connection.

  • Sunroom with glass roof and beige frame attached to a building, featuring interior furniture visible through the windows.

    230 Aluminum Sun & Stars Georgian Conservatories

    Full or Partial Glass Roof with Full or Partial Glass Walls

    Four Seasons' English-Style Georgian Conservatory combines classical architecture inspiration with maintenance-free, energy-efficient aluminum. Its slim, high-strength aluminum profile offers unmatched elegance. Inspired by Renaissance-era British castles, this conservatory adds a majestic touch to any home, featuring a regal design with more floor space than its Victorian alternative.

  • Modern conservatory attached to a brick house, featuring large glass windows and a pitched roof, with autumn foliage visible in the background.

    Sun & Stars Victorian Conservatories

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    Light pours into this unique glass sunroom from all angles, bringing warmth and openness to your traditional home. The classical "bull nose" of this Victorian treasure reflects its historical character, while the maintenance-free exterior makes it a modern marvel. Look no further for affordable elegance!

  • Spacious sunroom with glass ceiling and wooden interior design, featuring a dining area, chandelier, ceiling fan, and stainless steel refrigerator.

    Sun & Stars Straight Eave Wood Interior

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    This modern home addition blends engineered oak or pine with a vast glass roof from our Style 9, merging sunlight, stars, and contemporary aesthetics for a maintenance-free, inviting space. It promises year-long natural enjoyment with its durable, stylish design. The traditional Timber Frame, highlighted by engineered Northern White Pine, offers elegance and stability.

  • A group of people socializing in a sunlit conservatory with wooden frames and glass roof. They are seated on sofas and standing, holding drinks. A bowl of fruit and snacks are on a glass table, and there is a ceiling fan overhead.

    Sun & Stars Georgian Conservatories Wood Interior

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    This traditional, historically correct conservatory combines simplicity and strength combine with elegant style and grace. A stately structure, filled with equal parts light, comfort, and elegance, this substantial wood-framed Georgian sunroom model is the finest conservatory available to discerning property owners.

  • Sunroom with leather furniture, stone fireplace, and glass ceiling. Featuring a globe, ceiling fan, potted plants, and woodland view.

    Sun & Stars Victorian Conservatories Wood Interior

    Full or Partial Glass Roof with Full or Partial Glass Walls.

    Create an absolutely extraordinary space with the Victorian Conservatory in rich, natural wood. A light-drenched glass chamber that's refreshingly cool in the summer and cozily warm every winter, this stunning sunroom is as lovely from without as it is within. A truly spectacular sunroom addition to your home — and lifestyle.

Schedule A Free In Home Design & Estimate

Glass Overview

Year - round thermal comfort

  • U-Factor 0.25

  • MRT Chart

  • Layers of Protection

  • Added Benefits

  • Cold Weather Package

Conservaglass ™ NXT WITH STAY-CLEAN TECHNOLOGY...

  • Your Sunroom Glass' Performance is the Foundation of Your Sunroom Satisfaction...

  • Our Patented Glazing Keeps Four Seasons Sunrooms

  • Warmer in Winter and Cooler in Summer

Four Seasons Sunrooms' CONSERVAGLASS™ NXT with Stay-Clean Technology was 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, and its advanced construction techniques promise a lifetime of outstanding performance.

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

  • Sliding door wheel mechanism and track system

    Tandem Nylon Rollers

    Two rollers on each side of the operable sash ensure smooth, trouble-free operation.

  • Aluminum window frame cross-section with glass pane

    Interlocking Sash

    Ensures maximum air tightness and additional security.

  • Close-up of a black handle and latch on a gray sliding door.

    Primary Security Cam Lock

    Ensures security and peace of mind.

  • Sliding door handle with an arrow pointing to it, accompanied by a side latch mechanism.

    Secondary Safety Lock & Adjustable Handle

    Adjustable safety handle can be moved to the top of window to keep curious little hands of children from opening windows. Hardware color determined by product chosen.

  • Close-up of the cross-section of a metal extruded profile with bolts and a rubber seal, used in construction or industrial applications.

    Thermally Improved Frame & Sash

    Keeps outside temperatures outside and inside temperatures inside.

  • Illustration of a white metal rain gutter with a rectangular shape.

    Residential Style Gutter

    Matches most homes.

Door Options

  • Illustration of a door with close-ups of handle and hinge mechanism.

    Locking Mechanism

    One handed, 5 point locking system for superior strength and security.

    Triple adjustable hinges for smooth and secure operation.

  • Single swing door advertisement with features: full-view insert, multi-point locking, options for in-swing or out-swing, against a scenic mountain backdrop.

    Full Glass View Swing Door

    Available in 2’6” or 3’ widths

  • French doors advertisement with text describing in-swing and out-swing doors against a scenic mountain and lake background.

    French Doors

    Available in 5 or 6’ widths

  • Sliding patio doors with a blue glass panel and sliding screen, set in front of a mountainous lake backdrop with text about insect-free ventilation.

    Sliding Door

    Available in 5, 6,or 8’ Widths

  • Quad sliding doors with blue panels, promoting increased access and ventilation, including sliding screen doors.

    Quad Sliding Doors

    Available in 8, 10, 12, and 14’ widths

Roof & Ceiling Options

  • Illustration of prefabricated modular building sections with internal structural components.

    Structural No-Leak Roofing System

    3”,4”,& 6” Roof Panels with Strong integral EPS foam insulation provides superior R-value and strength. Snap-Lock construction with dual drains ensures leak-free performance. Optional OSB exterior allows for further finishing touches. Integral K5 style gutters that match most residential homes. Optional fan beams. Leaf Guards prevent gutter clogs. Hard finish resists scratching and chalking.

  • Modern house with gable roof and large windows

    Shingle Roof

    Match your sunroom roof with your house roof. Our OSB panels are designed to hold the weight of shingles and allow us to install shingles to our roof panels just like conventional construction.

  • House with red tile roof and large windows

    Tile Roofs

    Match your sunroom roof with your house roof. Our OSB panels are designed to hold the weight of roof tiles and allow us to install tiles to our roof panels just like conventional construction.

Color Options

  • close-up of abstract white spiral shape

    WHITE

    WALL COLOR

  • close-up view of a textured surface, possibly a wall or ceiling, with a rough, bumpy finish in a light gray color

    WHITE PEBBLE

    ALUMINUM SOLID WALL PANELS

  • close-up of textured white wall with a stucco finish

    WHITE SLATE

    VINYL SOLID WALL PANELS

  • Close-up of a spiral pattern in gray tones

    SAND STONE

    WALL COLOR

  • close-up of textured beige surface

    SAND STONE PEBBLE

    ALUMINUM SOLID WALL PANELS

  • Close-up of textured wall surface with beige paint.

    SAND STONE SLATE

    VINYL SOLID WALL PANELS

  • Close-up of a dark, shiny spiral pattern with smooth, reflective surface

    BRONZE

    WALL COLOR

  • dark brown textured surface close-up

    BRONZE PEBBLE

    ALUMINUM SOLID WALL PANELS

  • Close-up of black glossy curved surface

    BLACK

    WALL COLOR

Accessories

  • Ceiling fan under glass roof with blue sky and tree reflection

    Outdoor Ceiling Fans

    Enhance The Breeze and Comfort in your Sunroom with a fan of your choice.

  • White paneled ceiling with a recessed light and part of a window frame.

    Recessed LED Lights

    Choose From Warm White, Cool White, Or Bright White Color Options. Lights Can Be Dimmable.

  • Electrical outlet concealed within a utility column for sleek room design, labeled "Optional Utility H."

    Outlets and Switches

    Our sunrooms come standard with Utility H Raceways to conceal electrical. You can choose the location of your outlets. Typically outlets and switches are placed on the left or right side of windows and doors. Choose as many as you would like.

  • White window air conditioner with front grille and digital display

    AC / HEATING UNIT

    18,000 BTU Cooling | 12,000 BTU Heating

    Wi-Fi & Smart Phone Enabled Options.

  • Daikin air conditioning unit with indoor and outdoor components

    Ac / Heater Mini Split

    18,000 to 24,000 BTU

    Smart Wi-Fi Enabled Options.

  • Portable air conditioner emitting blue airflow, smartphone app control, and icons showing features like turning on/off, adjusting temperature, and setting timers. Google Play and App Store logos at the bottom.

    Ac / Heater Stand Alone Unit

    Perfect for smaller rooms up to 300 SF

    Wi-Fi & Smart Phone Enabled Options.

  • Person installing laminate flooring on a floor.

    Laminate | Hardwood

    Choose from our selection of Flooring Options or provide your own for our professional installation.

  • Spacious sunroom with large white-framed windows and French doors, beige tiled floor, and view of green trees.

    Tile

    Choose from our selection of tile options or provide your own for our professional installation.

  • Bright sunroom with floor-to-ceiling windows, gray sofa, patterned tile flooring, minimalist artwork, and plants.

    Carpet

    Choose from our selection of Carpet finishes or provide your own for our professional installation.

  • Person using a remote control to operate motorized window blinds in a room with beige walls.

    Motorized or Manual Rollup Blinds

    Choose from our wide selection of Fabrics and Colors

  • Sunroom with wooden furniture, round table, skylight ceiling, plants, and French doors.

    Drywall Finish

    Typically when attaching a Sunroom to an existing stucco or siding wall, the interior of the Sunroom main attachment wall is left unfinished. Our optional drywall package enhances the style of your sunroom making it tie into and flow with the interior of your home.

  • Rendering of a rectangular stage with wooden top and bottom edges and a textured white surface.

    Conservadeck

    Insulated Decking System Designed for Sunrooms Flooring and Decking.

  • Wall-mounted TV above a shelf with decorative items, including a stack of books and a white sculpture.

    Tv and Audio

    Our professional team can install a TV and Audio System for you and run wires into our hidden raceways within the sunroom. Ask our designers for more information.

 FAQs

  • Yes, most sunrooms in 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.

    You can trust our team to know all the details of California’s local code for sunrooms. We will make sure everything is handled for you.


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

  • 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 follow the energy and structural requirements in the California Residential Code 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. 

  • A conservatory is typically made almost entirely of glass, including the roof. This design lets in a lot of natural light but can also cause the room to heat up quickly, which matters in many areas of the state. In contrast, a sunroom usually has a solid or insulated roof and fewer glass panels, making it easier to control the temperature and keep the space comfortable throughout the year.

  • Sunroom prices in California are usually higher than the national average. This is due to state energy rules, building codes, and local labor costs. The final price depends on the size, type of glass, insulation, and how finished the room is.

    For a 20x20 sunroom, which is about 400 square feet:

    Most 20x20 sunroom projects cost between $70,000 and $130,000. If you want the range topping Four Season sunrooms with insulated roofs and energy-rated glass are usually at the higher end of this range.

    For a 12x12 sunroom, which is about 144 square feet:

    A typical 12x12 sunroom costs 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.

  • Yes. Financing through Enhancify is available for our sunroom installations. Choose a payment plan that fits your budget, submit the application, and once approved, we’ll schedule and build while you pay comfortably over time.

  • A sunroom is an enclosed space designed to maximize natural light. It typically uses large glass panels or windows. The space creates a sheltered area while maintaining an outdoor feel.

  • The key difference is enclosure. A patio cover provides overhead protection, while a sunroom surrounds the space with walls or glazing. This changes how the area can be used throughout the year.

  • Yes, depending on design and climate. Comfort levels depend on insulation, ventilation, and temperature control features. Usage varies by homeowner preference and local weather.

  • A sunroom can enhance usable living space. Value impact depends on design quality, integration with the home, and market conditions. Buyer perception also plays a role.

  • Heat and light management depend on glass type and ventilation. Some designs help reduce glare and improve airflow. Performance varies by orientation and materials used.

  • Yes. Sunrooms can be designed to complement the home’s style and structure. Customization options depend on layout and selected materials.

  • High-performance glass options include Low-E coatings that reflect heat while letting in light. This helps maintain a stable internal temperature during hot summer days or cold winter nights. These advanced glazing technologies reduce the workload on home heating and cooling systems.

  • Yes, a sunroom can be built with an insulated solid roof to provide more shade and superior thermal protection. This design allows for the installation of ceiling fans or recessed lighting. Mixing solid roof sections with glass walls creates a balanced space that feels like a natural extension of the home.