
How Much Does a 12×12 Sunroom Cost?
Nobody wants a surprise bill halfway through a sunroom project.
Adding a sunroom creates a bright, inviting space to enjoy the outdoors from home—but no two projects are priced the same. Costs vary widely based on your needs and preferences, so we’ll break down starting ranges for a 12×12 and what drives the price.
To provide you with an accurate estimate, a free consultation with one of our design consultants is essential. This consultation will help determine the exact specifications and features that are right for your space, allowing us to give you a detailed price quote.
Different Products Available
At Lumon, we offer a variety of sunroom options that cater to different needs and preferences. You may choose to add just glass walls to an existing covered space or opt for a full sunroom enclosure, which includes both glass walls and a glass roof. Each option offers its own set of benefits and will be tailored to fit your home’s architecture and your personal style.

Glass Walls
For simpler projects, glass walls can be an excellent choice. They provide an unobstructed view of the outdoors while offering protection from the elements. This option is ideal for those who already have a roof in place but want to enhance their outdoor space with the addition of Lumon’s high-quality glass walls.

Sunroom
On the other hand, a full sunroom enclosure offers a more comprehensive solution. With glass walls and a Lumon glass roof, you’ll create a protected space that is filled with natural light and offers extended usability. This option is perfect for those who want to maximize their enjoyment of the outdoors, regardless of the weather.
Estimated Costs for a 12×12 Sunroom
Now, let’s dive into some cost estimates for a 12×12 sunroom.

Glass Walls
If you’re looking to add glass walls to an existing space where a roof is already in place, you can expect the price to start at approximately $19,000-$23,000. This cost includes the manufacturing, shipping and installation of Lumon’s premium glass walls, which are designed to provide both beauty and durability.

Full Sunroom
For those interested in a full sunroom with both glass walls and a Lumon glass roof, the starting price will be around $38,000-$42,000. This higher cost reflects the additional materials and labor involved in constructing the roof, as well as the enhanced functionality and aesthetic appeal that a full sunroom provides.
Factors That Can Impact Your Price
While these estimates provide a starting point, there are several factors that can influence the final cost of your sunroom project. During your free consultation, our design consultant will work with you to determine the specific elements that best suit your needs and preferences.
One of the key factors that will impact your price is the style of the enclosure you choose. Lumon offers different types of glazing systems, including Lumon Glazing Sliding and Lumon Glazing Retractable. Each of these options has its own price point and functionality, so it’s important to select the one that best aligns with your goals for the space.
While one slides and stacks up on tracks, the other retracts and opens completely next to a wall. Both are excellent options; both are high-end quality – Our experts will help you choose the best option to fit the project needs. You can choose one option or a combination of both.
Other factors that may influence your price include the need for a supporting beam, the thickness of the glass panes, the height of glass panes and the number of glass panes used. All these factors depend on wind load, snow load and structural requirements of your home. It is important to book a free consultation so our design consultant can guide you about the structural requirement of the sunroom project.

Custom colors and roof blinds are additional features that can enhance the functionality and aesthetics of your sunroom, but they will also add to the overall cost.
Conclusion
Investing in a sunroom is a wonderful way to enhance your home’s living space and create a bright, comfortable area to enjoy year-round. However, it’s important to understand that the final cost of your sunroom will depend on a variety of factors, including the type of enclosure you choose, the materials used, and any additional features you decide to include.
To ensure that your sunroom meets your needs and fits within your budget, we recommend scheduling a free consultation with one of our design consultants. During this consultation, we’ll work with you to design a sunroom that not only enhances your home but also provides you with a space you’ll love for years to come. With our expert guidance, you can be rest assured that your sunroom project will be a success, both in terms of functionality and cost.
You might also be interested in..
-
The Power of Ventilation in Outdoor Spaces
Read more…Ventilation is one of the most underrated qualities in any enclosed space. It’s the line between a room that feels alive and one that feels stale—a space you linger in versus one you leave too soon. Yet for most homeowners, airflow rarely comes first.
-
2026 Sunroom Trends: What’s New?
Read more…Design trends are constantly evolving, which is why timelessness is so important when thinking about sustainable design. Enhancing your outdoor living space goes hand in hand with improving your overall wellbeing and quality of life.
-
5 Things to Consider About Four-Season Sunrooms
Read more…A 4-season sunroom might sound like a dream: a bright, glass-filled space you can enjoy year-round. But before you commit, it’s important to understand what goes into making one work—and whether it’s truly the right fit for your lifestyle and budget.