How much does it cost to convert a three-season sunroom to four-season?

Conversion costs typically range from $15,000 to $40,000 depending on the size of the room and what needs upgrading. You're paying for insulation, window replacement, HVAC integration, and any structural improvements required. This is usually 40-60% less than building a new four-season sunroom from scratch while giving you similar end results.

Can you convert a screen room to a glass sunroom?

Yes, but it depends on the existing structure. Screen rooms are built lighter than glass sunrooms because screens weigh much less than glass panels. We need to evaluate whether the foundation and framing can handle the additional weight and wind loads. In many cases, we can reinforce the existing structure and install glass panels. In other cases, partial rebuilding is necessary.

How long does a typical conversion project take?

Most conversion projects take 2-6 weeks depending on scope and complexity. Simple upgrades like window replacement or adding insulation take less time. Full conversions that include structural reinforcement, HVAC integration, and interior finishing take longer. We provide a detailed timeline as part of your project proposal so you know what to expect.

Sunroom Conversions & Upgrades

Transform your existing sunroom, patio, or porch into a more comfortable and functional space.

(512) 729-9017

Screen room conversion with modern white framing in Cedar Park, TX

If you already have a sunroom, porch, or patio, you might not need to build something new from scratch. Often, we can upgrade your existing space to make it more comfortable, energy-efficient, or better suited to how you actually use it. Converting or upgrading saves money compared to full demolition and rebuilding while still giving you significant improvements.

Common conversion projects include turning three-season sunrooms into four-season spaces, enclosing open patios with screens or glass, adding climate control to existing structures, or modernizing older sunrooms with better windows and insulation. Whatever your situation, we'll evaluate what you have and recommend the most cost-effective way to get the improvements you want.

Common Conversion Projects

Here are the conversion and upgrade projects we handle most often:

•Three-season to four-season conversion: Adding insulation, upgrading windows, and integrating HVAC for year-round use
•Screen room to glass enclosure: Replacing screens with insulated glass panels for better weather protection
•Open patio conversion: Enclosing an existing covered patio with screens or glass
•Window replacement: Upgrading old single-pane windows to energy-efficient insulated glass
•Roof upgrades: Replacing worn roofing, adding insulation, or switching to more durable materials
•Climate control additions: Installing HVAC, ceiling fans, or heating systems

Each project starts with an assessment of your existing structure. We look at the foundation, framing, roof, and current condition to determine what's salvageable and what needs replacement. Sometimes the existing structure is solid and just needs updated components. Other times, partial rebuilding makes more sense.

When to Convert vs Build New

Not every sunroom or patio is a good candidate for conversion. Here's how we help you decide whether upgrading makes sense or if starting with a new sunroom installation is the better choice.

Good Candidates for Conversion

Your existing structure is a good fit for conversion if the foundation and framing are solid, the roof is in decent shape, and the overall layout works for your needs. If you just want better windows, improved insulation, or added climate control, conversion usually costs 40-60% less than demolishing and rebuilding.

Newer structures that were built to code but just lack certain features are excellent conversion candidates. For example, a ten-year-old three-season sunroom with good bones can often be upgraded to four-season comfort without major structural work.

When Building New Makes More Sense

If your existing sunroom has foundation problems, structural damage, or was poorly built originally, starting over might be more cost-effective. We also recommend new construction if you want to change the size, layout, or location of the space. Sometimes the cost of working around existing problems approaches the cost of building fresh.

Very old structures that predate modern building codes often need so much work that rebuilding makes more financial sense. We'll be honest about which approach gives you the best value.

Upgrading to Four-Season Comfort

One of the most popular conversions is turning a three-season sunroom into a space you can use all year. This involves several upgrades that work together to create a climate-controlled environment.

First, we address insulation. Three-season rooms typically have minimal or no insulation in walls and ceiling. We add proper R-value insulation that matches or exceeds your home's existing standards. This might mean opening up wall cavities and ceiling spaces to install foam or batt insulation.

Next, we upgrade the windows. Single-pane or basic double-pane glass gets replaced with high-performance insulated glass. These windows have low-E coatings that block UV rays while letting visible light through. They also feature thermally broken frames that prevent heat transfer.

Finally, we integrate climate control. This usually means extending your home's existing HVAC system into the sunroom or installing a mini-split system that heats and cools independently. We also seal all gaps and add proper weatherstripping to prevent air leaks.

The result is a room that stays comfortable year-round and doesn't drive up your energy bills. You can use it as living space, a home office, or anything else that requires consistent temperature control.

Aesthetic and Functional Upgrades

Sometimes conversions aren't about changing the season rating. You might want to modernize an outdated sunroom, improve functionality, or update the look to match your home's current style.

Common aesthetic upgrades include replacing old aluminum frames with modern vinyl or composite materials, updating interior finishes like flooring and ceiling treatments, adding recessed lighting or ceiling fans, and installing new doors with better hardware and glass options.

Functional upgrades might include adding electrical outlets for better device charging, installing built-in storage or seating, upgrading to automated blinds or shades, or adding smart home controls for lighting and climate.

If you're also considering improvements to other outdoor areas, you might want to explore pergolas and patio covers to complete your outdoor living setup.

The Conversion Process

Every conversion project starts with a detailed assessment. We visit your property, inspect the existing structure, and discuss what you want to improve. We'll take measurements, check for any structural issues, and evaluate what components can be reused versus what needs replacement.

Then we provide a detailed proposal that outlines the work required, materials we'll use, timeline, and cost. We explain why we're recommending certain approaches and give you options where they exist. If permits are required, we handle that paperwork.

During construction, we work to minimize disruption to your daily life. Many conversion projects can be completed while you continue using other parts of your home. Timeline varies based on the scope of work, but most conversions take 2-6 weeks from start to finish.

After completion, you'll have an upgraded space that better meets your needs. We clean up thoroughly and make sure everything works as intended before we consider the job finished.

Ready to Upgrade Your Sunroom?

Let's evaluate your existing space and discuss how we can make it work better for you.

Call (512) 729-9017