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.
Homeowners who are used to house paints should have no trouble applying either and cleaning up afterward. First, apply some H&C cleaner degreaser, a mixture of heavy-duty detergent and phosphoric acid. You simply sprinkle it on the garage floor with a watering can, work it in with a broom and let it foam the floor clean. Then, rinse the floor and let it dry. The stain is applied with a roller. It's ready for foot traffic in one hour and car traffic in 72 to 96 hours depending on temperature and humidity.
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.”
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.
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.
Add between $75 and $500 to your budget for the cost of outlet installation. Most garages have electricity of some sort, even if it's just a bare bulb in the ceiling and a few outlets spaced around the walls. If you're trying to convert your garage into living space, you'll need a nearby licensed electrician to add more wiring and outlets for additional electrical devices.
Windows are important features when considering garage remodeling costs. Garage windows should be checked and replaced, if necessary, during any garage remodeling project. Not only are garage windows susceptible to the elements, but they also provide intruders another way into the home. Check for drafts, broken window locks and consider using metal cages around the windows for increased safety.
As the wife and I gear up to make our way back to our hometown here in North Florida, we’re seriously considering building a new house on some acreage, since we can’t find anything that we really are looking to call our last home. Naturally, I’ve already been working on designing my stand-alone dream garage. I mean, as long as we’re building stuff… ?

You may have to drill holes through studs or through the top plate of walls to reroute wires. If so, be sure to center the holes on the stud. If the plastic-sheathed cables are too short to reach the next box when you reroute them, you can add a junction box and splice on a length of cable. The new box must be accessible either in the attic space or through a blank cover on the wall or ceiling.
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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