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

The cost depends on the size of your sunroom and what upgrades are needed. Most conversions range from $10,000 to $30,000. This includes adding insulation, upgrading windows, and connecting the space to your HVAC system. We provide detailed quotes after inspecting your existing sunroom.

Can you upgrade just the windows in my sunroom?

Yes. If your sunroom structure is in good condition but the windows are outdated or damaged, we can replace them with new, energy-efficient windows. This is a cost-effective way to improve comfort and reduce energy costs without a full conversion.

How long does a sunroom upgrade take?

Most upgrades and conversions take 2 to 6 weeks, depending on the scope of work. Simple upgrades like window replacement may take just a week or two, while full conversions with insulation and HVAC integration take longer. We will provide a timeline during your consultation.

Sunroom Conversions & Upgrades

Transform your existing sunroom or patio into a more comfortable, functional space with professional upgrades and conversions.

Upgraded sunroom with modern features in Glendale, CA

Upgrade Your Existing Sunroom in Glendale, CA

If you already have a sunroom but it is not meeting your needs, you do not necessarily need to start from scratch. Sunroom conversions and upgrades allow you to improve what you already have without the cost and hassle of a complete rebuild. Whether your sunroom is too hot in the summer, too cold in the winter, or just outdated, we can help you transform it into a space you will love.

We specialize in converting three-season sunrooms into four-season rooms, upgrading old windows and doors, adding insulation, and integrating HVAC systems. We also help homeowners convert screen rooms or patios into fully enclosed sunrooms. Every project is customized based on your goals, your budget, and the condition of your existing structure.

Types of Sunroom Conversions and Upgrades

Here are the most common upgrades and conversions we perform:

Three-season to four-season conversion: Add insulation, upgrade to high-performance glass, and connect your sunroom to your HVAC system for year-round comfort.
Window and door replacement: Swap old, drafty windows and doors for modern, energy-efficient models that improve insulation and reduce noise.
Screen room to sunroom conversion: Enclose your screen room with glass panels and add a solid or insulated roof for better weather protection.
Insulation upgrades: Add or improve insulation in the walls, ceiling, and floor to make your sunroom more comfortable and energy-efficient.
HVAC integration: Connect your sunroom to your home heating and cooling system or add a ductless mini-split for independent climate control.

Why Upgrade Your Sunroom

There are plenty of reasons to upgrade an existing sunroom. The most common reason is comfort. If your sunroom is too hot in the summer or too cold in the winter, you are not getting full use out of the space. Adding insulation and HVAC can solve that problem and let you enjoy your sunroom all year long. Another reason is energy efficiency. Older sunrooms often have single-pane windows and poor insulation, which means they waste energy and drive up your utility bills. Upgrading to modern materials can save you money in the long run.

Some homeowners also upgrade their sunrooms for aesthetic reasons. If your sunroom looks dated or does not match the rest of your home, we can update the finishes, replace outdated fixtures, and give the space a fresh, modern look. If you are planning to sell your home, a well-maintained and upgraded sunroom can increase your property value and appeal to buyers. For more outdoor improvement ideas, check out our patio enclosure services.

Our Conversion and Upgrade Process

We start every conversion or upgrade project with a thorough inspection of your existing sunroom. We assess the structure, windows, insulation, and any other features to determine what needs to be improved. Then we provide a detailed proposal that outlines the work, materials, and costs. Once you approve the plan, we handle all the construction work and make sure everything is done to code. Our goal is to give you a sunroom that meets your needs and exceeds your expectations. If you are also interested in building a new sunroom, explore our sunroom installation services.

(747) 609-3881