

Three-Season Sunrooms
Summertime Just Got an Extension
Enjoy more of the seasons with a professionally designed, built, and insulated three season room.

Embrace Outdoor Living
Reconnect with nature on a sunny summer afternoon, or enjoy your coffee on a crisp fall morning. Three-season sunrooms are designed to shelter you from the elements while allowing for all the pleasures of being outdoors. Used primarily in spring, summer and fall, three season rooms forgo internal heating and insulation, making them a cost-effective option for outdoor living spaces.
Expert Design
An ELC sunroom contractor will work closely with you to capture your wishlist items in a stunning final design. We offer a variety of interior finish options, ensuring your space reflects your personality and compliments your home. Materials we’ve used in three-season sunrooms include:
- Smooth or rough-sawn cedar
- Cedar tongue and groove
- Board and batten
- Shiplap
- Beadboard or wainscoting
- Exposed or faux brick/stone veneer
Added Value
A well-designed three-season sunroom can add significant value to your home. These sunrooms add extra living space and offer a versatile environment for entertaining or relaxing with your family. Got an existing screened-in porch? Elevate your space and expand your horizons with a sunroom conversion.
The Process:
Sunroom Additions
Design
Fill out our contact form and schedule a visit. We'll come to your home, gather your ideas, and explore sunroom add-on options to meet your needs.
Plan
After our initial visit, you'll receive a personalized, no-obligation estimate. If you decide to proceed with your three season room addition, we'll finalize the project details, timeline, and contract.
Build
Our team takes care of all preparations, including material orders, new build permits, and installation. When the project is finished, we conduct a quality check to ensure everything meets your expectations and our standards. Before we wrap up, we'll make sure your new outdoor sunroom is exactly as you envisioned.
Frequently Asked Questions
Three-Season Sunrooms
A three season sunroom is an enclosed living space designed for use in spring, summer, and fall. Three season rooms allow for plenty of natural light but forgo internal heating and insulation, making them a cost effective alternative to four season sunrooms. A sunroom add-on gets you closer to nature, while sheltering you from the elements.
Absolutely. During our consultation, we ensure that your existing surface can support the weight of the walls and roof. If necessary, we will reinforce the footing to accommodate your new outdoor sunroom. Ask your ELC sunroom contractor about enclosing an existing foundation to create a usable living space.
A three season room is a fully enclosed space featuring solid windows and doors. While screened-in porches offer overhead shelter, they typically feature mesh siding for a more open-air environment. The solid walls and windows provide extra insulation, meaning you can enjoy your three season sunroom well beyond summer.
The lack of heating and insulation make a three season add-on ideal for use in spring, summer, and fall. However, with a space heater and a blanket, many customers enjoy their outdoor sunroom year-round.
In most cases, you will need a permit for a new build such as a sunroom. We’ve got it covered! An ELC three season room contractor will file any necessary permits. We will also help prepare HOA paperwork if needed.
A sunroom addition can add significant value to your home. Any well-designed outdoor living space significantly increases marketability and curb appeal. However, the square footage of an unheated space cannot be used for appraisal purposes.
For a heated and insulated space that does add technical square footage to your home’s appraisal value, check out our four season sunrooms.
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