The first step is often fixing a cracked floor or leveling it, and sometimes even staining it to make it look more attractive; the repairs cost $500-$12,500, and stains range from $2 to $10 per square foot. Drywall is typically put up, which costs from $1 to $2 per square foot. Adding boards for a storage space above the garage typically costs about $2 per square foot.

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
Additions & RemodelsAcoustic CeilingsArchitectureCarpentryCarpet CleaningCleaningDecks & PatiosDemolitionDesignersDoorsDrywall & InsulationElectricalEngineeringFencingFlooringGaragesGlass & MirrorsGuttersHandymanHome SecurityHome TheaterHome BuilderHome InspectorsJunk RemovalHVACLandscapingMasonryPainting & StainingPavingPest RemovalPlumbingRoofingSidingSnow RemovalSolarSwimming PoolsTesting & AbatementTile & StoneTree RemovalWindows

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 certain garage remodel facts that apply to almost every project. Rather than you spending your day digging them out of the corners of the internet, we have put them together for you. These quick facts will let you make some informed decisions. Even if these facts don’t help you make decisions, they will give you a better knowledge base as you begin.
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.