
A sunroom can do more than just add extra square footage. It can create a calm, bright space that brings a bit of the outdoors inside. But if you’re starting with a screened-in porch, the idea of turning it into a fully enclosed space may feel like a big jump.
The good news is that this kind of upgrade is more doable than most people think. Still, it takes more than closing off a few screens. You need a plan, a purpose, and the right materials to make it work through all seasons. From deciding how you’ll use the room to picking the best windows, every step makes a difference.
Before you start tearing things down or calling a contractor, there are a few key points you’ll want to consider. Let’s break it down step by step.
1. Think About How You’ll Use the Space
Every homeowner has different reasons for wanting a sunroom. Some want a peaceful reading corner. Others need a playroom, a home office, or even a plant-filled spot for indoor gardening. This decision shapes the rest of the project.
If you plan to spend mornings sipping coffee there, make sure it gets good light in the morning. If you’ll work from there, you may want outlets and Wi-Fi access. Once you figure out what you’ll use the space for, other choices like layout, windows, and heating start to fall into place.
2. Choose a Trusted Local Contractor
A well-built sunroom depends on careful planning and quality installation. If you’re not handling the work yourself, it’s worth taking time to choose the right contractor. APCO offers complete sunroom design and construction services, including screen rooms, three-season rooms, and four-season rooms. Their team works directly with homeowners, helping them select the right materials, visualize the project with design tools, and stay on budget.
Look for an installer with experience, clear communication, and strong local reviews. Ask for past project photos and always expect upfront answers about timelines and next steps.
3. Pick the Best Spot for Natural Light
Sunrooms are all about light, but not every spot in your home gets the same sun exposure. A south-facing sunroom will get the most daylight. It may stay warmer in the winter but might need shading in summer. A north-facing room stays cooler but gets less light. East-facing rooms offer gentle morning light, while west-facing ones can get very hot in the afternoon.
The right placement depends on how you want to use the room and how much natural warmth you want to rely on. If your existing screened-in porch doesn’t get much light, you may need to add skylights or windows to brighten it up.
4. Choose Windows That Do More Than Look Nice
Windows are the most important part of a sunroom. They control how much heat, cold, and noise enters the space. For a four-season room, double-pane or low-emissivity (low-E) glass makes a big difference. These types of windows help block heat in the summer and keep warmth in during the winter.
Think about the style too. Casement windows open outward and allow airflow. Sliding windows are easy to use and space-saving. Picture windows don’t open but offer wide, clear views. You’ll want to pick a combination that looks good and works well for your layout. Good windows are an investment, but they make the room much more usable year-round.
5. Choose Flooring That Can Handle It All
The flooring you choose for your sunroom needs to hold up well. It should handle temperature changes, sunlight, and moisture. Carpet won’t work in most sunrooms, especially in areas where it rains or snows often. Instead, go for something sturdy and easy to clean.
Luxury vinyl planks are a smart pick. They’re water-resistant, come in different looks, and feel warmer than tile. Tile is also a good option, especially if you plan to install heated floors. Engineered wood works too, but make sure it’s made for rooms that aren’t climate-controlled year-round. Whatever you pick, avoid materials that fade or warp in the sun.
6. Think About Heating and Cooling Early
If your goal is to use the sunroom throughout the year, you’ll need a way to keep it comfortable. A ceiling fan might be enough for a three-season room in a mild climate, but you’ll need more than that for a four-season upgrade.
Some people connect the sunroom to their home’s HVAC system. Others use a ductless mini-split, which can heat and cool without changing the rest of your system. You can also add electric baseboard heaters, portable units, or even heated flooring. Pick a system based on your local weather, the size of the room, and how often you plan to use the space.
7. Don’t Skip the Permit Process
A sunroom isn’t just another room—it’s an addition to your house. That means you may need building permits or inspections. Requirements vary by city and county. Some areas have rules about electrical work, structural changes, or even how much space you can add to your home.
Before you begin any work, contact your local building department. Ask about permits, fees, and timelines. If you’re hiring a contractor, make sure they’re familiar with local rules. A project done without permits can lead to fines or problems when you try to sell your home.
8. Add Smart Finishing Touches
Small choices make a big difference in how useful your sunroom becomes. Think about where to place outlets so you can plug in lights or charge devices. Plan lighting that works both during the day and after sunset. Recessed lights or slim wall fixtures work well in smaller rooms.
You may want to wire the room for speakers or add dimmer switches for better control. If the room will double as a workspace or reading area, plan for extra outlets and strong Wi-Fi. These details are easy to overlook but can improve how you use the room every day.
Turning a screened-in porch into a year-round sunroom is a smart way to add space and function to your home. But to get the results you want, you need more than just an idea—you need a clear plan. From choosing the right windows and flooring to sorting out permits and comfort systems, each step plays a role in the final outcome.
When done right, a sunroom becomes one of the most used and loved spaces in the house. Whether you’re planning to relax, entertain, or work from your new room, the key is to think through the details. With smart choices and the right help, your dream sunroom can be more than just an upgrade—it can be the best room in your home.