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.
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.
On the exterior we remove the siding on the front of the garage and installed new hardboard siding that matched the original on the building. Electrically we removed and relocated existing lights and added a ceiling fan as well as recessed lighting. Some additional outlets and network wiring was installed then connected to the home and panel box. The interior was insulated in areas such as the ceiling, stairwell and miscellaneous sections of the walls. We laminated (overlay) the existing sheetrock with 3/8″ wallboard on the sidewalls and stairwell and 1/2″ for the ceiling.
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.
Look for a contractor who specializes in garage remodels - or at least one who has experience remodeling garages. Ask to see pictures of previous jobs such as the before and after garage conversion picture shown here. A good contractor should be able to show you garage conversion designs and you can also get some inspiration from looking online at garage remodeling ideas. Remodeling a garage is different than remodeling other areas of the home, and it helps to have a contractor who understands that.

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.
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.
Have a ballpark figure in mind. Determine what you can comfortably afford to spend on your garage remodeling or building project. Where does it fall in your list of home improvement priorities? Will you be spending 100% of your remodeling and construction budget on it? Having a clear idea of your price ceiling will help you avoid making choices that are too expensive or elaborate and having to scale back in the process.
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.
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.

Purge: Look at your pictures, think of them in terms of a small space. Purge anything that doesn’t work in a small space. With minimal square feet to work with, you don’t need a spa bathroom. While a game room sounds great, the space needed for a pool table is probably not there. Take out anything from your plan that doesn’t fit in a smaller space.
Like wood stains, masonry stains are less viscous than paints. They soak into the masonry and don't form a film the way paint does. Unlike film-forming coatings, stains won't make your garage floor feel like the deck of an aircraft carrier. Because of this, stains are somewhat more forgiving and easier to apply and reapply as they wear off and become dirty. One of the oldest (perhaps the oldest) masonry stains available is H&C, now owned by Sherwin-Williams and sold at local paint stores. This venerable brand has been used in the Southern U.S. for many years. It's available in a wide range of colors and it can be tinted to any color you prefer. It's available in two formulations: a solvent-base (that is unavailable in California) and a waterborne acrylic available nationwide. The solvent-based formulation is the tougher one, so if you have both available, choose the stronger route unless you're very sensitive to solvent fumes.
Garages have minimal insulation, so if you’re renovating your garage to turn it into an office or family room, you’ll certainly need to add insulation and HVAC. Your insulation pro will start with the ceilings and floors. Beyond that, they may or may not choose to add insulated garage doors (if doors are being kept). All in all, adding new HVAC and insulation can add $2,000 to $3,000 to your garage remodel cost.

If the concrete slab in the garage is the problem, there are more cost-effective solutions than a concrete mason. Most cracking, flaking, stains, pitting or wear can be easily fixed by calling a concrete specialist to apply either an inexpensive epoxy or polyurethane-based coating. These seals are very durable and can make your garage floor look brand new.

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