I just finished "re-modeling" my garage...before I touched it it had just taped drywall and concrete block walls, unfinished cement floor, wires for the garage door openers hanging all over the place, holes in all the walls/ceiling. It was a typical, dirty, dark garage.I painted the concrete walls with Behr waterproof masonry paint and the rest of the walls and ceiling with the same color behr paint (twilight gray-to lighten it up).I did the floor with Behr 1 Part Epoxy, which, takes forever to prep for, but the result is worth it. You first need to sweep very good, then clean/de-grease and etch the concrete using a floor cleaner rented from HD...then let it dry. I let it dry for about 2 weeks. Once I was sure the concrete was dry, I applied 2 coats of concrete bonding primer. I let that dry for about 24 hours, and I was finally ready for the paint. The paint goes on easy, one coat was plenty. I sprinlled in some color flakes and let it dry 24hrs. I then began my first of three coates of low gloss sealer. The finished result was very pleasing...I then re-installed my Gladiator Garage Works 8 foot work bench, wall cabinet and tool chest as well as a second wall cabinet and large gearbox that I purchased for my new garage... I also built a wooden cabinet around the circuit breakers and painted it gray along with the framing for the garage doors, a beam in the middle and the door into the house. I finished with gray vinyl trim molding around the walls.I also mounted the bikes, a shop Vac and misc. brooms, saw horse, etc... on the wall(s). All of the wires from the garage door openers were hanging down and sloppy (prev. owner) so I disconected everything and ran it through PVC for a cleaner look. I then added a few finishing touches, Bud Light neon clock, pictures (NE Patriots Cheerleaders), and mounted my novelty license plate collection as well as a few other items...Moving all of my furniture/tools out of the garage was a big project in itself, and I lost my basement(i.e. Gym) for about a month and a half, but the end result is a very clean, organized garage that is "my" place...

When considering a small garage remodel, you can pay as little as $2,500 to as much as $30,000.  On average, the cost will be around $11,000, if you consider the national average. These costs are not set in stone, though. Your choices on materials will largely determine the overall cost. Your budget will take less of a hit on a smaller garage, which is another bonus, and there are many ways to save. A breakdown of the costs follows.

Conversion: Depending on your circumstances you may want to look into how to convert your garage into a functional room. This is not always the best option, and largely depends on what other houses comparable to yours look like. If other homes in your area have more square feet available, or more bedrooms it may make sense to convert your garage into a bedroom.
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.
Garage floor coatings fail for a number of reasons. First, the floor is usually not clean enough to receive a coating. Years of grime have to be removed using solvents and proprietary cleaners. These are sold at paint stores, hardware stores, home centers and industrial supply houses. If the floor is really filthy, consider pressure washing. Rent a machine that produces at least 1,200 to 2,000 psi. Also, buy some grease-cutting detergent at the rental store. Along similar lines, you might consider a steam cleaner if a pressure washer is unavailable.
Your garage remodeling project is almost always an expensive endeavor. Take the time to find ways to save money on your garage remodel. Every remodel is a unique project. The costs can be something that easily overwhelm your idea. Your garage remodeling project can benefit from some basic ways to save money. There are cost savings that can be found in almost every aspect of your project.
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.
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. 
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