Skip to main content

«  View All Posts

What is a Sunroom? A Complete Guide to This Bright and Beautiful Home Addition

February 13th, 2025 | 5 min read

By Callie Lovejoy

SunroomImagine a space in your home where you can relax with a book, sip your morning coffee, or entertain guests—all while being surrounded by natural light and outdoor views. A sunroom is a perfect way to bring the beauty of the outdoors inside, without dealing with harsh weather, bugs, or temperature extremes.

Sunrooms come in different styles, from three-season rooms to elegant conservatories. But how do you know which one is right for your home?

At JSB Home Solutions, we’ve been building high-quality pre-fabricated sunrooms for 14 years and have been part of the remodeling industry for over 45 years. Our experience has taught us that an informed homeowner is a confident homeowner, which is why we’re committed to educating our customers—not just selling a product. We believe you should have all the facts to make the best decision for your home and lifestyle, and we're here to provide expert guidance every step of the way.

In this guide, we’ll break down what a sunroom is, explore the different types, and discuss the benefits and key considerations before adding one to your space.

Table of Contents:

What is a Sunroom?

What is a SunroomA sunroom is a glass-enclosed space attached to a home, designed to let in an abundance of natural light. It serves as a transitional space between indoor and outdoor living, providing the comfort of an enclosed room while offering panoramic views of your surroundings.

Unlike a patio enclosure, which typically consists of mesh screens, a sunroom features glass windows or walls, making it a more insulated and weather-resistant space. However, it is not the same as a full home addition, as sunrooms often have a lighter structure and may or may not be integrated into the home's main HVAC system.

Many homeowners use sunrooms as a relaxation area, reading nook, home office, or even a dining space. Some even transform them into indoor gardens filled with houseplants that thrive in the natural light.

Types of Sunrooms

Not all sunrooms are built the same. And not all companies build all types of sunrooms. JSB builds three- and four-season sunrooms and screen rooms but not solariums or conservatories. Depending on your budget, climate, and intended use, you may want to consider one of the following options:

Three Season SunroomWhat is a Three-Season Sunroom?

A three-season sunroom is designed for use during spring, summer, and fall. It typically includes minimal to moderate insulation and no climate control, making it too cold to use comfortably in winter. Because of its lighter construction, a three-season sunroom usually costs less than a four-season sunroom, making it a popular choice for homeowners who want an indoor-outdoor retreat without the higher costs. 

Four Season SunroomWhat is a Four-Season Sunroom?

If you want to use your sunroom all year long, a four-season sunroom is the best option. These are fully insulated and often include heating an A/C, making them just as comfortable as any other room in the house. High-quality energy-efficient windows help regulate temperature, keeping the space warm in winter and cool in summer. While more expensive than a three-season room, a four-season sunroom adds greater usability and value to your home.

SolariumWhat is a Solarium?

A solarium is a stunning option for homeowners who want floor-to-ceiling glass walls and a glass ceiling. This design allows for maximum sunlight exposure and breathtaking views, making it a great choice for nature lovers and stargazers alike. However, the extensive glass can lead to overheating in summer and heat loss in winter, so proper insulation, shading, or climate control is often necessary.

ConservatoryWhat is a Conservatory?

A conservatory is similar to a solarium but with a more ornate, architectural design. Popular in Europe, conservatories often feature decorative framing, curved glass panels, or a Victorian-style roof. They are commonly used as greenhouses for growing plants year-round, thanks to their excellent sunlight exposure. While elegant and visually striking, conservatories require more maintenance due to their intricate glasswork and potential temperature fluctuations.

Screened Porch vs. Sunroom: What’s the Difference?

Screen vs Three Season Sunroom

Some homeowners confuse screened porches with sunrooms, but they serve different purposes. A screened porch features mesh panels instead of glass, allowing fresh air to flow through but offering no insulation or protection from rain and cold. In contrast, a sunroom provides a weatherproof space with full glass enclosures, making it usable in a wider range of conditions.

Benefits of Adding a Sunroom

More Natural Light Sunroom WindowsA sunroom isn’t just a beautiful addition to your home—it also brings several practical advantages. Whether you're looking for extra living space, a boost in natural light, or a cozy retreat to enjoy the outdoors year-round, a sunroom offers something for everyone. Here are some of the key benefits:

  • Abundant Natural Light – Enjoy a bright and airy space while reducing the need for artificial lighting.
  • Versatile Living Space – Use it as a lounge area, playroom, or even a home office with a view.
  • Energy Efficiency – Passive solar heating can help naturally warm the space, lowering heating costs in cooler months.
  • Increased Home Value – A well-designed sunroom can enhance your home’s appeal and attract potential buyers.
  • Connection to Nature – Experience the beauty of every season without dealing with bugs, harsh weather, or outdoor exposure.

Whether you're admiring a snowy winter landscape or relaxing in a shaded summer retreat, a sunroom lets you enjoy nature from the comfort of your home.

Things to Consider Before Adding a Sunroom

Before adding a sunroom to your home, it's important to think through a few key factors to ensure it meets your needs and expectations. From choosing the right location and materials to understanding permits and potential costs, careful planning can make all the difference. Here’s what to consider before moving forward with your sunroom project.

Thomas_After-3-scaled1. Sunroom Addition Budget and Costs

The cost of a sunroom varies widely based on size, materials, and features. A three-season sunroom typically costs between $10,000 and $40,000, while a four-season sunroom can range from $25,000 to $80,000 or more. Custom windows, HVAC integration, and electrical wiring are also factors that affect the overall cost of a sunroom.

2. Choosing the Right Sunroom Location

Skybo.2020.ProfessionalPictures-6The positioning of your sunroom plays a crucial role in how comfortable it will be throughout the year.

  • South-facing sunrooms receive the most sunlight but may require shading solutions to prevent overheating.
  • North-facing sunrooms are cooler and receive indirect sunlight, making them ideal for milder climates.
  • East-facing sunrooms capture the morning sun, while west-facing sunrooms offer warm afternoon light.

3. Sunroom Addition Maintenance Requirements

With large glass surfaces, they require regular sunroom window cleaning to maintain visibility and prevent dirt buildup. Solariums and conservatories, in particular, demand more upkeep due to their extensive glass structures. Choosing building materials like aluminum and vinyl helps keep maintenance minimal since they are water-resistant and can be cleaned with a hose and some soapy water.

How to Clean Sunroom Windows

4. Impact of a Sunroom Addition on Resale Value

A well-designed sunroom can increase home value, but a poorly built one may not be as appealing to future buyers. Sunrooms tend to be more desirable in warmer climates, where they can be used year-round without excessive heating costs. Make sure you consider if a sunroom addition is worth it for you.

Is a Sunroom Addition Right for You?

A sunroom is a bright, inviting space that enhances your home while providing a peaceful retreat from the outside world. Whether you prefer a three-season getaway, a cozy four-season sunroom, or a sophisticated conservatory, this addition can transform your home in more ways than one.

  • If you love natural light and want an extra space to relax, entertain, or work in year-round, then a four-season sunroom might be the perfect fit.
  • If you’re looking for an affordable way to enjoy the outdoors without worrying about bugs and weather, then a three-season sunroom could be the ideal solution.
  • If you have limited yard space or prefer a more enclosed, insulated addition, then a sunroom might not be the best option for your home.

Thinking about adding a sunroom? Now is the time to explore your options! Download our free Sunroom Planning Guide to learn more about styles, costs, and features—or schedule a consultation with our team to start designing the perfect sunroom for your home. Click below to get started!

Callie Lovejoy

JSB Home Solutions was founded by my dad. Growing up around the family business means that I've been living and breathing home remodeling for quite literally my entire life. When I'm not at work, you can find me homeschooling my three kids, in the garden, or cheering my kids on at wrestling tournaments.