A higher R 𝑅-value garage door is only worth it if you plan to heat or cool the garage to use it as a workspace, gym, or living area. For a standard, unheated garage in a moderate climate, mid-range insulation (R-6 to R-10) combined with proper weatherstripping is perfectly adequate.
A higher R-value means better temperature control and energy efficiency, which can lead to savings on heating and cooling. If you want the best insulated garage door available, look for higher R-values.
If the insulation and the look of your garage door take a back seat because the price of a quality door is your top concern, we suggest going with an R12 door. Otherwise, if insulation and appearance are very important, an R16 or a fully glazed door could be a better fit to pick the right garage door.
Prices for a standard 9x7 insulated garage door typically range from $𝟔𝟎𝟎 to $𝟑,𝟎𝟎𝟎 for the door itself, and $𝟕𝟓𝟎 to $𝟏,𝟗𝟎𝟎 fully installed. Your exact cost depends on the R-value, construction, and design you choose.
A "good" R-value depends entirely on how you use your garage. Generally, R-values between R-8 and R-12 are ideal for most homes, effectively lowering your utility bills.
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.
Clopay and Amarr are both industry-leading garage door manufacturers, but they cater to slightly different priorities. Choose Clopay for premium design, advanced insulation (up to R-20.4), and high customization. Choose Amarr for budget-friendly reliability, excellent rust resistance, and strong value.
On average, you should plan to budget around $2,171 for a single-car garage door or $3,478 for a two-car garage door. If you're looking to use premium materials, designer styles, or additional features like insulation or automation, you may need as much as $3,498 (single door) or $4,522 (double door).
An insulated garage door costs $750 to $1,900 installed for a single garage door or $1,500 to $3,700+ for a double garage door. Insulated garage door prices are $600 to $3,000+ for the door alone, depending on the size, style, brand, and insulation type.
20×20 Garage Prices
20×20 multiple-car garage prices range from $17,311 to $55,736 and above, depending on building design, style, siding, add-ons, and more. The lowest-priced 20×20 garages are those built in the “Double Wide” style, while our “Legacy” collection and Modern 20×20 garages have the highest price point.
A standard 16x7 garage door typically costs between $750 and $4,000, fully installed. Your final cost will depend heavily on the material, insulation (R-value), windows, and whether you need to add a new motorized opener.
The most insulated residential garage doors feature thick, injected polyurethane foam and achieve R-values between 18.018.018.0 and 20.420.420.4. Leading options include the Clopay Canyon Ridge Collection and the [Clopay Coachman Collection](https://www.homedepot.com/p/Clopay-Coachman-Linear-Design-9-ft-x-7-ft-Insulated-18-4-R-Value-White-Garage-Door-with-SQ24 Windows/300803588), which provide optimal thermal efficiency for harsh climates or living spaces above the garage.
R60 insulation is worth it if you live in a very cold climate (like the northern U.S. or Canada), but it is often considered overkill for mild climates. While it maximizes comfort and thermal efficiency, you will experience diminishing financial returns compared to standard R38 or R49 insulation.
Insulating an unheated garage is generally worthwhile if you plan to spend time there (e.g., as a workshop) or if it shares walls with living spaces. It moderates temperature extremes, dampens noise, and protects stored items, though it will not keep the space perfectly room-temperature without an active heat source.
Average cost to insulate a garage
The cost to insulate a garage is $0.50 to $3.00 per square foot installed, depending on the size, height, and insulation type. Garage insulation costs $800 to $5,100 on average for the walls and ceiling in a 2-car garage. A 2-car garage door insulation kit costs $90 to $530.
4 Residential Garage Door Brands We Recommend
Insulated garage doors are absolutely worth the investment, especially if your garage is attached to your home, used as a workshop, or sits beneath a living space. They enhance temperature regulation, reduce noise, and increase overall structural durability, typically offering a strong return on investment for your home.
A 10x12 insulated garage door typically costs between $𝟏,𝟐𝟎𝟎 and $𝟑,𝟓𝟎𝟎 for the door itself, depending on the material, insulation type (R-value), and brand. When factoring in professional installation, the total price usually ranges from $𝟐,𝟎𝟎𝟎 to $𝟓,𝟎𝟎𝟎+.
For most homes, the average cost to replace a two-car garage door ranges from $1,200 to $3,500. This price includes both the new door and professional installation. Higher-end models, especially those with custom designs or premium materials, can push the price upwards of $5,000 or more.
A standard garage door lasts anywhere from 15 to 30 years, averaging about 20 years. However, the exact lifespan largely depends on the material, your local climate, and how well you maintain it.
It's one thing to see a price range written down, but it makes more sense when you look at real situations: A single garage with a simple steel up-and-over door: around £700 all in. A single insulated roller door with electric operation: roughly £1,500–£1,800.
Technically, it is possible to install a new garage door on old tracks, but it is highly discouraged by professionals. Garage doors and tracks are designed as a single, synchronized system. Reusing old tracks can lead to significant safety risks, alignment issues, and a shorter lifespan for your new door.
Consider Off-Season Purchases: As mentioned earlier, consider purchasing your garage door during the off-season (late fall and winter) to potentially secure lower prices.
1/2 horsepower garage door openers work well with standard aluminum doors in a residential garage. If the garage is the main entrance to your home, or you have a one-piece or oversized door, choose an opener with the lifting power of 3/4- to 1 1/4-horsepower.
Find the highest-quality garage doors and garage door openers at Costco. Stylish Amarr® garage doors come in a wide range of colors and designs, so you're sure to find one to complement your home.