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.
An insulated garage will stay cooler in the summer and warmer in the winter. The first step is to be sure the attic is well ventilated. Check to see how many attic and roof vents you have. A good rule of thumb is a total of 1 sq. ft. (144 sq. in.) of vent opening per 300 sq. ft. of attic divided between the soffit and roof vents. For a typical 20 x 22-ft. garage, you’d need about six 4-in. x 12-in. soffit vents and two standard square roof vents. Make sure your ventilation is effective by installing vent chutes between the trusses. Vent chutes have a channel that prevents blown insulation from blocking the airflow from the soffit vents to the attic space. Plug the area under the vent with wood blocking or plastic and a chunk of fiberglass insulation to prevent wind from blowing up through the insulation or insulation from filling the soffit.
The home office will cost at least $5,000, making it one of the more affordable options when it comes to converting your garage into living space. Like a bedroom, a home office needs all the basic amenities, such as walls, floors, and a ceiling. It needs climate control and a window. This room may also require additional outlets that let you connect computers, printers and charging stations. You'll need internet access and a high-speed connection, as well as lots of storage and organization options.

Waterproof paint (for concrete walls) • Paint (dry wall) • Behr concrete cleaner (2 Gal) • Behr Concrete Etcher (2 Gal) • Behr Concrete Bonding Primer (1 Gal) • Behr 1-Part Epoxy Paint (2 Gal.) • MiscPainting Supplies • Stainless steel light switch/receptical covers • Lumber for cabinet over circuit breakers • Gladiator Garage Works workbench-Wall cabinets-tall cabinet • Hooks for bicycles/tools • Tapcon masonary drill bits • PVC (to run wires for garage door openers


The cost of installing five windows falls somewhere around $5,000, or about $1,000 per window. If your garage doesn't have any windows, plan to add at least one. This is especially important if you want to list it as a bedroom or rent it out. You'll need an egress window big enough for a person to escape through in case of a fire. Egress windows average about $3,500.
There are a few different options when it comes to garage renovation basics, but finishing materials provide the most options and the most flexibility. Flooring alone offers a dozen or so choices, from inexpensive laminate and carpet to elegant hardwood and natural stone. A great discrepancy in quality (and therefore costs) also exists between different types of cabinets, countertops, light fixtures, plumbing fixtures, appliances, wall finishes, ceilings, windows, doors, molding, heating systems, and much more. And of course, depending on your intended use for the room, you'll need to buy furniture, appliances, curtains, decorations, and all the other complimentary odds and ends.
The extras on a garage often get short attention, but those little details can make a big impact. Take lighting and house numbers: Choices more in step with your garage's style can tie together paint, materials, and more. Use proportion as your guide when selecting fixtures: Low-slung styles such as this garage work better with small to medium fixtures.
Your garage remodeling project isn’t necessarily the easiest endeavor. Too often a homeowner will just forge ahead with a great idea and hope it turns our alright. Needless to say, this is not often the case, most remodels do not go easily. Even if you think of a good plan, it probably is missing something. Trust us, unless you are a professional contractor, you haven’t thought of everything. Our tips will make you look like you have done this a thousand times.
If you have an existing garage in place, but no walls, floor, ceiling or finishes in place, the cost to finish your garage will be much less expensive than $10,000. Oftentimes, finished a garage entails adding a few beams or drywall. Contractors can install wooden or steal beams for a few thousand dollars. In addition, according to our drywall installation cost guide, you can purchase drywall for at little as $0.30/sf. If you hire a general contractor to install the drywall, expect to pay another $1,000. Overall, the cost to finish a garage should not exceed $5,000.

If you don’t want to spend $10,000 on a garage remodel, you could partially finish your garage. You can frame a concrete garage the same way you you’d finish a basement. Wooden crossbeams are secured to the floor, and the remainder of the framing is built up from there. Walls of either paneling or sheetrock can then be fastened, making your garage look and feel like another room of the house. Sheetrock is very often used for garage ceilings, allowing you to choose a paint color, and the same can be said for the walls. This is a job any general contractor can accomplish for a few thousand dollars. You could use metal studs, as opposed to wood, when framing to cut down material costs significantly.


Every project comes down to cost, so it only makes sense to start there. According to our garage remodeling cost estimator, the average garage remodel runs $8,582. Keep in mind, this takes the full garage into consideration. That includes the garage door, flooring, windows and plenty of other renovations. For those remodeling one aspect of their garage, of course, expect the final price to be much less. In fact, we have even seen garage remodels cost as low as $900.
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