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Sunroom Contractor in Portland, ME –
Custom Sunrooms by Sunrise Sunrooms

Sunspace by Sunrise Sunrooms is Portland, Maine’s premier sunroom contractor, specializing in high-quality, custom-built sunrooms that transform your outdoor space into a comfortable living area you can enjoy all year. Serving Portland, Scarborough, South Portland, Falmouth, and surrounding areas, we offer complete design, manufacturing, and installation services. Whether you envision a breezy screen room, a versatile three-season vinyl sunroom, or a fully insulated four-season glass sunroom, we’ll help you create the perfect retreat that matches your lifestyle, home architecture, and budget.

Our Sunroom Models

Enjoy the fresh air without the bugs. The Model 100 offers a low-maintenance aluminum frame and high-quality screening, making it ideal for seasonal outdoor living. Optional upgrades include WeatherMaster™ windows for added versatility.

Custom-built sunroom with a sleek aluminum frame, featuring large glass panels and a cozy seating area, enhancing outdoor living space.

Our most popular three-season solution, the Model 200 features flexible vinyl glazing that’s 10 times stronger than glass. Panels can be stacked up or down for customizable airflow. Perfect for extending your outdoor enjoyment through spring, summer, and fall.

Bright and airy sunroom featuring a spacious layout, comfortable seating, and large glass panels, ideal for seasonal outdoor living and enhancing home architecture.

Bring more natural light into your home with tempered glass panels. The Model 300 offers a stylish, insulated aluminum frame and protection from wind and rain while maintaining an open, airy feel.

Bright and airy sunroom featuring large windows, lush indoor plants, stylish furniture, and a scenic view of trees and a pool, illustrating the Model 300's design for natural light and outdoor enjoyment.

Designed for year-round comfort, the Model 400 features double-pane insulated glass, thermally broken aluminum framing, and energy-efficient construction — allowing you to heat or cool the space for all-season use.For more information about energy-efficient window technology, visit the U.S. Department of Energy’s Energy Saver guide.

Our Installation Process

We visit your home to discuss your vision, measure your space, and recommend the right model.

Every sunroom is made to order using Sunspace’s high-quality materials.You can explore the full product line at the official Sunspace Sunrooms website.

Our trained installers handle everything from the foundation to finishing touches.

We ensure your new space meets our quality standards and your expectations.

Why Choose Sunspace by Sunrise Sunrooms

Over 40 years of sunroom design & installation experience

Locally owned and operated in southern Maine

Full range of models for every season and budget

Professional, licensed installation team

Industry-leading warranties

Custom sunroom with glass windows and door, surrounded by wooden steps and deck, showcasing Sunspace branding, designed for outdoor living enhancement in Portland, ME.

Service Areas

We proudly install sunrooms in:

Frequently Asked Questions

How much does it cost to build a sunroom in Portland, ME?

 The cost depends on the size, model, and features. Three-season sunrooms start around $10,000

Do I need a permit to build a sunroom in Portland, ME?

 Yes, most sunroom projects require a building permit. We handle all permitting for you as part of our installation service.

What’s the difference between a three-season and a four-season sunroom?

Three-season sunrooms are designed for spring through fall use, while four-season sunrooms are insulated and can be heated or cooled for year-round comfort.

How long does sunroom installation take?

Most projects are completed within 2–4 weeks after permits and materials are ready.

Get Started Today

Ready to bring more light, space, and comfort to your home? Contact Sunspace by Sunrise Sunrooms today for a free design consultation and estimate.