Finishing a garage is highly worthwhile if you want to expand your usable square footage for a home gym, workshop, or living space. It typically costs between $ 4 , 000 to $ 10 , 000 but yields a strong resale return of 65 % to 80 % while drastically improving comfort and energy efficiency.
The short answer
Builders leave most garages at a low drywall level because it meets code, saves money, and avoids paint callbacks. Taxes rarely change for paint alone.
It might seem like an odd part of the house to spend money on, but there are several reasons to consider making finishing the garage a priority project. These include: Thermal protection for energy efficiency. Fire protection, especially when the garage is attached to the house.
The national average cost range for a garage remodel is between $7,000 and $15,000, with most homeowners spending around $11,000 on a full 2-car garage remodel with new cabinet storage and floor coating. This project's lowest cost is around $3,000 for a cosmetic update with floor and wall paint and shelving.
A well-executed garage conversion can boost your home's resale value by as much as 10-20%, depending on the local housing market and the quality of the renovation. Factors such as insulation, flooring, lighting, and heating/cooling systems play a crucial role in determining how much a garage is worth post-conversion.
Factors that decrease property value the most fall into three main categories: location issues, structural damage, and poor neighborhood conditions. These factors can collectively slash a property’s value by 5% to 30% or more.
A 24×24 garage is one of the best value sizes for homeowners needing two-car storage. In 2026, prefab garages typically start around the mid-$10,000s, while custom-built garages can range from the mid-$20,000s to $40,000+ depending on upgrades, materials, and site conditions.
The cheapest way to finish a garage depends on your end goal: simply making the space look clean and dust-free, or fully insulating and paneling it for a functional workshop.
Building a 20x20 garage (400 sq. ft.) costs between $𝟔,𝟎𝟎𝟎 and $𝟒𝟓,𝟎𝟎𝟎+ depending on the construction type. Prefabricated metal garages are the most affordable, while custom stick-built (wood frame) garages with electrical, plumbing, and finished interiors sit at the higher end of the spectrum.
You'll likely need a permit since this project may require soil grading to avoid drainage issues. Repairing your floor may be more cost-efficient than replacing it if grading is necessary. No permit may be required to hang drywall on exposed wooden wall studs in your garage.
An uninsulated garage door is perhaps the biggest culprit for heat loss in your garage, as there is no barrier to slow the heat transfer out of your garage. In order to protect your garage from heat loss, you need a door with insulation.
Certain home improvements do increase property taxes, but only when they add permanent value or require a building permit. Room additions, finished basements, new bathrooms, and garages typically trigger reassessments. Cosmetic updates like painting or replacing carpet generally do not.
On garage walls, semi gloss remains the top choice due to its resistance to moisture, mold and everyday wear. It also makes wiping down workbenches or dirty handprints much easier. If your garage sees a lot of activity, your finish should be ready for it. Garage wall paint doesn't have to be an afterthought.
The 10 year rule applies to any breach of use of land or buildings (excluding dwellings) which has not been challenged by enforcement action for the period of at least ten years. A garage conversion changes the use from a non dwelling (garage) to a dwelling (somewhere you will live).
Here are ten important things to consider when building your new garage.
What makes a garage “finished?” A garage is considered finished if it's drywalled, has epoxy-like flooring, has central heating and cooling, and has no open or exposed beams. Finished garages are also typically painted.
Recognize the high price of skipping the process: Building without a permit can lead to expensive fines, stop-work orders, and denied insurance claims. It also creates major complications when you try to sell, potentially lowering your home's value and deterring buyers.
If you drywall your garage yourself, you'll pay $0.30 to $2 per square foot in materials, depending on the size of your garage, the thickness of the material, and whether you decide to add texture. If you hire a drywalling pro, you'll pay an additional $1.20 to $1.50 per square foot in labor fees.
Yes, in most cases, council approval is required. This can include planning permits, building permits, and meeting certain zoning or setback requirements. At Clinic Maintenance, we manage the entire approval process for you to ensure compliance with all local regulations.
Yes, you can fit two cars in a 20x20 garage, but it will be a tight squeeze. A 20x20 footprint provides 400 square feet, which is widely considered the minimum acceptable space for a two-car garage.
One of the biggest mistakes people make when building a garage is failing to plan; underestimating the complexities involved with building a garage can lead to delays, higher costs, and frustration.
A concrete slab is the best choice for long-term durability and stability, especially for larger garages.
If you want to skip the traditional drywall finishing—like mudding, taping, and sanding—the top alternative is PVC wall panels (such as Trusscore Wall&CeilingBoard). They are lightweight, 100% waterproof, snap together, and don't require painting.
Garages are highly vulnerable to extreme temperature fluctuations, high humidity, and pest infestations. For safety and preservation, never store the following items in your garage:
The majority seem to agree that insulated, unheated garages, should be allowed to breathe. If the garage is heated, you will need a vapor barrier, otherwise you will get frost and mold.