Usually, the cost of installing a sunroom depends on material cost, labor cost, style, design and flooring system. The price of installing a sunroom starts at $10,000 and can go up to $70,000. Of course, a Do-It-Yourself kit saves you the cost of a professional contractor’s labor, but depending upon your circumstances, you may regard your time as valuable too. Keep in mind that The National Association of the Remodeling Industry (NARI) estimates that a sunroom will repay more than 70% of its investment cost when reselling your home.
Costhelper.com provides a wealth of information about the costs of installing a sunroom. The typical costs of a two-season model with a deck with roof and screens range from $500 - $1,500 for do-it-yourself materials, and averages $5,000 -$15,000 for a custom built version but can go higher for larger spaces, cathedral ceilings or other options. A three-season model adds the cost of wind- and waterproofing. A four-season model that is built on a foundation, heated and fully insulated can go as high as $60,000 to $70,000 for a complete installation with cathedral ceilings, remote-control blinds and other options.
Prefabricated sunrooms with glass walls start at about $10,000 and average between $15,000 and $35,000, including prep and foundation work.
According to a remodeling Web site, nationwide, average prices range from $45,889 -$55,813 to custom-build a 200-square-foot four-season sunroom addition from the ground up, with a slab foundation, post-and-beam framing, insulation, glass windows with screens, window shades, a ceiling fan and a tile floor.
It’s also important to check with your local building department for building codes and permit requirements. Permitting can range from several hundred- to several thousand dollars. Make sure that all required prep and foundation work, and clean up are included in a cost estimate, because these costs can add $2,000 to $4,000 to the bottom line.
Furnishing and decorating a sunroom can range from $500 for the kit-type models, to $10,000 or more, for more elaborate ones.
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