The cost to finish a garage is often less than the cost of a remodel, coming in at an average of about $5,000. Finishes should factor high on your list of materials before you ever begin your garage conversion. The answers to the following questions will go far in determining your budget. Low-end finishes will save you big bucks at the time of renovation, but high-end finishes will help recoup your ROI when it comes time to sell.
When it comes to design, nothing provides more a boost than the actual garage door. Not only can they match the architecture of your home, but they come in a wide range of sizes, styles and components. Chances are, you already have a garage door, but years of opening and closing, along with general wear and tear, can bring about a fair share of issues.

The overhead garage door can be a big source of drafts and heat loss. Recently installed doors usually include a weather-stripped stop around the perimeter. But older doors may be lacking a weather strip. Luckily, it’s an easy fix. Garage door weather stripping is available at home centers and hardware stores, and installation is straightforward. If your overhead door is uninsulated, search online for “garage door insulating kits.”
If you decide to expand your garage to make more room for tools or storage, this is considered adding on to your home, and costs will typically go up. Home addition costs fall between $20,000 and $70,000 for most homeowners, depending on the size and type of space built. Your contractor will frame out new walls and expand the room's foundation. If you intend to keep the space the same only reorganizing it, you may have only the costs associated with purchasing and installing shelving and cabinetry.
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.
If you decide to expand your garage to make more room for tools or storage, this is considered adding on to your home, and costs will typically go up. Home addition costs fall between $20,000 and $70,000 for most homeowners, depending on the size and type of space built. Your contractor will frame out new walls and expand the room's foundation. If you intend to keep the space the same only reorganizing it, you may have only the costs associated with purchasing and installing shelving and cabinetry.
Every parent whose living room is drowning in a sea of toys has probably tried to think of a convenient storage solution at least once or twice. Although you might lack a method for keeping the endless piles of books, blocks, Barbie’s, and balls organized for more than 30 minutes, you might be able to exile them from your living room into a room of their own.
Heating & AC ($1000-$5000): Adding central heat and air into your garage can either be simple or difficult. If you have a robust heating and air conditioning system in place it is as simple as expanding your existing ducting. If the additional square footage is more than your system can handle you will need to add in a new unit. Luckily, a small garage usually is able to be fit into your existing system.

The floors of your new space are a unique issue. Your garage is built with drainage in mind. Code requirements mandate that the concrete slab has a slope built into it to ensure water drains away from the home. The installation of the subfloor will correct the slope issue of your floor. Using a subfloor allows your new space to be converted back into a garage should the next home owner wish to do so.
But about those new formulations, one is Epoxy Shield garage floor paint. It's a waterborne coating consisting of epoxy and acrylic resins with color chips that you sprinkle over while the coating is wet. Its manufacturer says it’s specifically formulated to withstand hot-tire pickup, moisture vapor and attack by solvents and chemicals that drip from a car or come in on the car's tires. It comes as a kit that consists of a cleaner-degreaser, two paint components that you mix together and nonskid color chips. To apply, first clean and degrease the floor. Then mix the two-part coating together and roll it on. Finish up by broadcasting the nonskid chips onto the coating while it’s still wet. You should be able to walk on the surface in four hours and drive on it after seven days when it’s fully cured. The kit costs about $60.
So if you are in need of a garage but don’t have a lot of money then consider this option. It could still be used as a great protector of your vehicles and other items. And would certainly make a great workspace as well. The only thing I wouldn’t be certain about would be the storage of personal items. But that could be worked around if this project could be done on a budget that works for you.
Every city has certain building codes all homes must follow. One popular item many homeowners have to add when they convert their garage into a living area or bedroom is a new window. Building codes require living spaces to have a window large enough for a person to crawl out of in case of an emergency. Single window installation costs start at $1,200.
And you really need your investments protected, but you just don’t have the funds to build some of these other options. Well, don’t give up hope. This video shows you how to build a pretty decent structure that will do what you need it to do for basically no money. And honestly, if you have the materials on hand it could actually be built for free.
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