A full-scale apartment or guest house will take you to the top of your budget and beyond at an average between $15,000 to $30,000. You'll need to make all the upgrades mentioned for a family room, along with a separate bath and kitchen. You'll need to run a gas line or a 220 outlet for the stove. You'll also want a private entrance for your apartment, which usually entails adding a fire door.
One of the biggest impacts you can make to a refreshed garage has little to do with the garage itself: Add containers potted with pretty blooms. The planters help to soften the edges between structure and landscape and add pops of visual interest to what is often a neutral facade. Here, miniature trellises up the columns add even more growing spots, with delicate vines that clamor up toward the pergola. Another idea: Use hanging baskets on either side of a garage’s door.
One of the biggest impacts you can make to a refreshed garage has little to do with the garage itself: Add containers potted with pretty blooms. The planters help to soften the edges between structure and landscape and add pops of visual interest to what is often a neutral facade. Here, miniature trellises up the columns add even more growing spots, with delicate vines that clamor up toward the pergola. Another idea: Use hanging baskets on either side of a garage’s door.
A garage remodel is usually much cheaper than a home renovation because the foundation, roof, and walls are already built. Many garages also have electrical and plumbing installed to some extent. The actual cost of a garage remodeling project, however, depends on what the renovated space will be used for. While a new home gym won't require much in the way of amenities, converting a garage to an office, apartment, or bedroom requires adding significantly more creature comforts.
Leaky doors and windows let in uncomfortable drafts and increase heating and cooling costs. Check your garage service door to be sure it has good weather stripping and a threshold that seals tightly to the bottom of the door. In most cases, if your service door is missing a threshold and weather stripping, it’s more efficient to replace the door with a new, weather-tight version. You can buy an inexpensive prehung metal exterior door at home centers and lumberyards.

Although many people use it as the catch-all of the house, the garage offers valuable storage and potential living space that can often be more effectively used with a remodel. Some people remodel the garage to turn it into an extra bedroom or living space, while others remodel it to make it more functional as a storage and workspace. Total cost depends on the size of the garage, age of the house, and the remodel purpose, but you can plan to spend an average of $6500 for a garage remodel with a common 600 square foot garage into a more functional space. Although it is possible to remodel a garage yourself, especially for smaller projects, hiring a professional contractor is always recommended.


When it comes to garage insulation, homeowners have two options. Foil insulation (pictured above), tends to look like foil, but the inside is usually laced with heavy-duty polyethylene. The polyethylene is usually used in rigid sheets that are placed inside the cavities of your garage door. Once placed onto the garage, the polyethylene expands to fit into place.
Flooring: Concrete slabs are cold, hard, and not very pretty to the eyes. Even if you’re on a tight budget, installing new floors during your garage conversion could be worth your while in terms of comfort and aesthetics. Vinyl flooring is one of the more cost-effective options and is available in many different designs made to look like wood, tile, or natural stone. If the space is framed in and moisture isn’t a concern, carpet is also a viable option for softer flooring as long as insulation occurs beforehand.
A full-scale apartment or guest house will take you to the top of your budget and beyond at an average between $15,000 to $30,000. You'll need to make all the upgrades mentioned for a family room, along with a separate bath and kitchen. You'll need to run a gas line or a 220 outlet for the stove. You'll also want a private entrance for your apartment, which usually entails adding a fire door.
Paint manufacturers have recognized these problems and have come to the rescue with new solutions. But a word of advice: If your garage floor sees heavy water leakage, if it's badly cracked or if it's damp and slimy all summer, don't apply any coating. In those cases, you're better off simply keeping it as clean as you can and then calling it quits.
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