How Much Does It Cost to Install Window Trim?

Low
$50
Average Cost
$125
High
$250
(painted cedar exterior trim for a double-hung window)

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How Much Does It Cost to Install Window Trim?

Low
$50
Average Cost
$125
High
$250
(painted cedar exterior trim for a double-hung window)

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Reviewed by Laura Madrigal. Written by Fixr.com.

Windows play an important role in your home’s look and function. But your window itself is not the only piece of the puzzle. Windows need the right trim to help cover gaps and provide a finished appearance, and they enhance your house’s curb appeal and your interior design.

Window trim is the finish molding installed around your windows both inside and out. It comes in several styles and materials, so it has a wide range of associated costs. The national average range for installing trim is between $80 and $200 per window, with most people paying around $125 per window for painted cedar exterior trim. At the low end, you can install MDF interior trim for around $50. At the high end, you can install exterior pre-primed, laminated wood trim in a layered, decorative style for $250.

Window Trim Prices

Window Trim Installation Costs
National average cost$125
Average range$80-$200
Minimum cost$50
Maximum cost$250


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Window Trim Cost by Project Range

Low
$50
Basic MDF interior trim around a casement window
Average Cost
$125
Painted cedar exterior trim for a double-hung window
High
$250
Pre-primed laminated wood exterior trim in a layered, decorative style

Window Trim Cost by Type

Window trim is installed on both the interior and exterior of your home. They have many similarities, but they can be made of different materials. For example, it is common to match your exterior trim to your siding, so vinyl trim would be used with vinyl siding. However, it is more common to use wood or MDF indoors.

Installation is also slightly different, with exterior trim being used to cover the gap where the siding ends at the windows. Interior trim is used to give the windows a decorative appearance. There can be some overlap in costs, depending on the window material, style, and size:


Window Trim Cost


Window Trim TypeAverage Cost Range per Window
Interior trim$50 - $150
Exterior trim$80 - $250


Interior Window Trim

Interior window trim is usually more decorative and designed to match other trim in the room, such as baseboards or crown moldings. It can be made of many materials, including inexpensive MDF and polystyrene to more expensive hardwoods. The average cost range per window is $50 to $150, depending on the window’s material and size.

Exterior Window Trim Cost

Exterior window trim is usually less decorative but needs to be strong and durable to withstand the elements. For this reason, it is more common to use things like laminated wood, insect-resistant wood like cedar, or man-made materials like vinyl or aluminum that hold up well long term. This trim is usually matched to the rest of your exterior trim, and it is installed at the same time as your siding. Expect costs to range from $80 to $250 per window, depending on the window’s material and size.


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Window Trim Cost by Material

Window trims come in a wide range of materials, and all have different attributes and price points. Some materials can be used both indoors and out, but other materials are best suited to one area. In general, if you can use a specific material outside, it can be used indoors, but it may not be available in the styles and sizes you want for interior use. If a material is designed for interior use, it should not be used outdoors unless specified by the manufacturer.

Interior Window Trim Materials

Interior materials tend to be more decorative and come in a range of durabilities. They also have a range of maintenance levels and styles. Keep in mind that even though these are all rated for indoor use, some are best used in dry areas, while others can be used in places like kitchens and bathrooms.


Window Trim Prices
Window Trim Prices



MaterialAverage Cost per Linear Foot
MDF$1 - $3/linear foot
Paint-grade wood$1 - $3/linear foot
Polystyrene$1 - $3/linear foot
Polyurethane$2 - $6/linear foot
Hardwoods$3 - $10/linear foot


MDF Trim

MDF makes a great choice for interior windows. It is inexpensive, easy to cut, and takes paint very well. It creates a smooth surface with no grain, so it is good for building decorative trim for modern homes. It is heavy and cannot be used near moisture. Prices range from $1 to $3 a linear foot.

Paint-Grade Wood Trim Around Windows

Paint-grade wood trim is a less expensive wood designed to be given a paint coat, and it is sometimes called builder-grade wood trim. It is lightweight, usually made of pine, and takes paint well. You can use it in a variety of ways, including some decorative applications. Expect to pay $1 to $3 a linear foot.

Polystyrene Window Trim

Polystyrene is a good choice for windows in kitchens, bathrooms, and showers. It does well in damp or wet areas. It is made from extruded polystyrene - a type of plastic. It does not require paint, but it is limited in style because it cannot be built out like MDF or wood. It costs $1 to $3 a linear foot.

Polyurethane Window Trim

Polyurethane is a great material if you need something that holds up in damp areas, while giving you the ability to create detailed and built-up designs. This dense material handles and cuts like wood, but it needs to be painted during installation, so it can be more expensive to install. Prices range from $2 to $6 a linear foot.

Hardwood Trim Around Windows

Hardwood is a beautiful material for interior trim on windows. This is the choice if you want to stain your trim or let the natural color and grain of the wood shine. Many hardwoods can be used for window trim, and like all woods, they can be used to create a variety of different styles. Hardwood trim costs $3 to $10 a linear foot, depending on the wood species.

Exterior Window Trim Materials

Exterior trims have a bigger focus on durability and are more likely to match or coordinate with your siding. Since exterior trim is installed at the same time as your siding or just after the siding installation, it is common to use trim in the same material. It is possible to mix and match if you want a specific look unattainable in the siding material you are using.

Exterior Window Trim Material Costs

Exterior Window Trim Material Costs


Exterior Trim MaterialAverage Cost per Linear Foot
Wood$1 - $5/linear foot
Engineered/laminated wood$2 - $6/linear foot
Aluminum$2 - $6/linear foot
Brick trim$2 - $8/linear foot
Vinyl (PVC)$5 - $8/linear foot
Fiber cement$5 - $8/linear foot


Wood Trim Around Exterior Windows

Wood trim for exterior use is almost always either pine or cedar, although redwood is sometimes an option. Pine is the lowest cost material but is not rot or insect-resistant, so it needs to be maintained carefully. Cedar and redwood are more expensive, but they resist rot and insect activity. Both must be primed before painting to prevent “cedar bleed” from staining the trim. Wood trim costs $1 to $5 a linear foot on average.

Engineered/Laminated Trim Around Windows

If you like the look of wood, but want something lower in maintenance, then engineered or laminated trim makes a good choice. Engineered wood and laminated wood are made from real wood, but they usually have resins or fillers to help make them more durable. They come pre-primed, making installation easier and cost $2 - $6 a linear foot on average.

Aluminum Trim Around Windows

If you have aluminum siding, you may want to use aluminum trim to match. Aluminum trim is usually color-matched to the siding, and it is highly durable, flame-retardant, and insect-resistant. It can dent and fade, so it needs a lot of maintenance. Expect costs to range from $2 to $6 a linear foot on average.

Brick Trim Around Windows

Brick trim is something of a misnomer. It is not made of brick, but trim used with brick siding. Brick trim can be wood, vinyl-wrapped wood, or solid vinyl. It has a distinct thickness and shape that allows it to inlay into the brick properly because it cannot install over the edge of the brick the way that other trims can overlap the edge of lap siding. Brick trim prices range from $2 to $8 a linear foot on average.

Vinyl Siding Trim Around Windows

If you have vinyl siding, then you likely have vinyl or PVC trim installed. PVC or polyvinyl chloride trim is a plastic molded to look like wood. It is lower in maintenance than wood and does not require painting, but it is susceptible to hot and cold temperatures and may warp or crack over time. Vinyl siding trim installed around windows is usually matched to the vinyl trim used elsewhere on the home. It costs $5 to $8 a linear foot on average.

Fiber Cement Trim Around Windows

Like aluminum and vinyl, fiber cement trim is designed to match fiber cement siding. This blend of cellulose fiber, sand, silica, and Portland cement creates a very dense, durable material that looks like wood, stucco, or simply smooth boards. It comes primed and painted in many sizes and styles, and it can be built into decorative moldings. Prices range from $5 to $8 a linear foot on average. 


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Window Trim Prices by Type of Window

Windows come in many shapes, sizes, and styles, and they can all be trimmed both inside and out. The trim itself does not change costs much for most windows, but the window’s size dictates the project’s cost. Larger windows cost more to trim than smaller windows. The one difference is rounded or curved windows, which need a specialty trim that can be more expensive than square or rectangular windows. Below are some of the average costs for various window types, assuming the most common sizes for each window.


Window Trim Prices Chart

Window Trim Prices Chart


Window TypeAverage Cost to Trim
Casement window$60 - $100
Sash window$60 - $100
Picture window$120 - $200
Bay window$150 - $225
Bow window$175 - $250
Rounded window$175 - $250


Casement Window Trim

Casement windows are tall, thin windows trimmed individually. Because of their shape, they are easy to trim and do not have substantial or thick moldings. They cost $60 to $100 a window to trim on average, depending on the material and size.

Sash Window Trim

Sash windows, including single-hung and double-hung, are also fairly easy to trim. They are rectangular or square and do not have substantial or thick moldings. Expect to pay $60 to $100 a window to trim, depending on the material and size.

Picture Window Trim

Picture windows are larger sized windows that are trimmed individually. While bigger, they are still usually square or rectangular, so they are easy to trim. They may have wider trim to complement their larger size and cost $120 to $200 a window to trim.

Bay Window Trim

Bay windows may need more trim, depending on how they are formed. They can be made of several panels, each with its own trim, or trimmed out at once. They can have very elaborate trim at times to help complement their appearance and cost $150 to $225 to trim.

Bow Window Trim

A bow window is a curved bay window, requiring more trim and a more difficult installation than a standard bay. The panels can be trimmed individually or have a single surrounding trim. They are often given very decorative or elaborate trim to complement their appearance, which can be more expensive to install. Trim costs $175 to $250 on average for a bow window.

Rounded Window Trim

Rounded windows or curved windows need specialty trim designed to match the curve of the window. This can be more expensive both for the trim and installation, so even if the window is smaller, the costs are usually higher. Expect costs of between $175 and $250 per window on average.

Window Trim Prices by Style

Like other types of house trim, window trim can be created in many styles. Some of these can be achieved by layering one molding over another, while others are created using decorative fillets and other elements. Some styles are more expensive to create than others, particularly as you get more decorative or elaborate.


Window Trim Price Chart
Window Trim Price Chart


Trim StyleAverage Cost
Flat stock$1 - $8/linear foot
Colonial$1 - $8/linear foot
Craftsman$1 - $15/linear foot
Ranch$2 - $10/linear foot
Provincial$2 - $10/linear foot


Flat Stock Window Trim

Flat stock is the plainest, most basic type of window trim. It is completely flat and smooth and works well in modern and contemporary homes and some transitional settings. It comes in many materials and costs $1 to $8 per linear foot, depending on the material.

Colonial Window Trim

Colonial window trim is one of the most common styles, and it is found in many homes. It has subtle details with a rounded center, although you can find more decorative types with fluting. Expect costs of $1 to $8 per linear foot, depending on the material.

Craftsman Window Trim

Craftsman trim is slightly wider at the top than on the sides. It is not mitered, so the side trim dies straight into the top. It is normally flat, but you can find more decorative versions with fillets at the top and bottom. It costs between $1 and $15 per linear foot, depending on the material and style.

Ranch Window Trim

Ranch window trim is another popular style that is fairly plain in profile. It starts flat, then gently rounds outward into a curve. It works well in ranch-style houses and many other settings. Expect costs to range from $2 to $10 per linear foot, depending on the material.

Provincial Trim

Provincial trim is a more decorative and channeled trim. It is slightly wider than the colonial, with a more pronounced fluting to the channels. It has an elegant appearance and works well in formal settings. It costs $2 to $10 per linear foot, depending on the material.


Beautiful living room with wooden window trim

Labor Cost to Install Window Trim

The labor cost to install window trim varies from window to window, depending on the window’s style and material. It also varies for indoor and outdoor trim.

Indoor trim installation costs between $30 and $50 a window, depending on the material and how involved the installation is. The most common labor charge per window is $40. Exterior window trim installation costs start around $60 a window and can go to $80 a window for second-story windows, large windows, and elaborate trim. 

Trim can be installed by a handyman or carpenter indoors, but it is most likely installed by your siding installer on the exterior. The different professionals involved are part of what makes the labor costs different between the interior and exterior trims.


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Cost to Replace Window Trim

Window trim on the inside of your home does not need to be replaced unless you want to update your interior’s look and style. In this case, expect to add another $20 to $30 to remove and dispose of the old trim to the project’s cost. Expect an average range of $70 to $180 per window.

Cost to Replace Rotten Window Trim

For the exterior of your home, your most common times to replace the trim are when you replace your siding or when the trim is rotten. The costs for removing and disposing of the rotten trim are between $20 and $30 per window, making the cost of replacing your rotten window trim between $100 and $280 on average.


Open living room with vinyl window trimming

Window Capping Cost

If you have an exterior window with trim that is high-maintenance or rotting, you can have it capped, rather than replacing the window and trim. Capping wraps the frame and trim in another material like vinyl or aluminum to help reduce damage. It can lower the maintenance of your exterior windows and trim, but it detracts from the appearance because it can cover up the natural wood grain.

The average cost to cap a window is around $75, but it can be as high as $150 for larger windows.

Aluminum Window Capping Cost

Aluminum is one of the materials frequently used for capping. It costs between $1 and $2 a linear foot and can be painted to match the rest of your home. Aluminum capping may also be made of an aluminum core with a vinyl exterior, with a higher cost of $3 to $4 a linear foot.

Vinyl Wrap Window Trim Cost

Vinyl is the other material commonly used for wrapping or capping. It does not need to be painted, but it can warp in hot weather and crack in cold weather. It does not tend to last as long and is slightly more expensive at $2 to $3 a linear foot on average.

Window Sill Replacement Cost

Window sills usually need replacement before the rest of the trim. This is the flat ledge that sits at the base of the window, and its placement means that moisture may collect there. It can also be used to set items, but this causes it to stain and wear out. Replacing a sill is more expensive than replacing the trim because it requires more labor. It has an average replacement cost of $150 to $200 per window on average.

Rotten Window Sill Replacement Cost

Rotten window sills are common outdoors, particularly if they are made of wood or not installed properly. They are easy to remove but can mean removing and replacing the trim and siding around them. They have an average cost of $175 to $225 to replace outdoors on average.


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Enhancements and Improvement Costs

Cost to Paint Window Trim

Some window trim arrives primed and painted, and others do not require painting at all. If you have trim that needs painting, expect to add another $15 to $20 per window to the project.

Crown Molding Around Windows

Crown molding is the large, substantial molding used where the walls meet the ceiling. While it is not suitable for windows, you can get the same look using a larger and more substantial window molding, which costs between $5 and $15 a linear foot.

Rosettes

Rosettes can be installed on the corners of the window trim for a more formal or decorative look. These cost $5 to $30 a piece, depending on the material and style.

Additional Considerations and Costs

  • Capping on windows can be dented or damaged easily. If you replace your siding, make sure the installers work carefully around the capping.
  • Most contractors offer discounts on larger jobs, so getting all of your windows trimmed at once costs less per window than doing them piecemeal.
  • Window installation does not normally include the trim. Exterior trim is installed with siding, while interior trim is purely decorative and installed later.
  • While the trim throughout a house does not need to match, it creates a cohesive and unified appearance if it matches or coordinates in style or finish.
  • Wood trim is popular for the home’s interior, but it is used less frequently these days on the exterior, where more durable materials can now be used.

FAQs

  • How do you know when you need window trim replacement?

For the interior, this is a style decision, while on the exterior, the trim should be replaced with the siding or when it softens and begins to rot. If you can push a screwdriver into your trim, it should be replaced.

  • What does wrapping a window mean?

Wrapping means covering the window frame and/or trim in a covering of aluminum or vinyl to protect it from the elements.

  • How much does window framing cost?

The cost to frame out a window opening can be $150 to $300 per window, depending on size and placement.

  • Does a window need a sill?

Yes, this is part of the window’s frame and structure. It holds the window in place and provides stability.

  • Is window trim necessary?

On the exterior of your home, it is necessary to cover the gap between the siding and your window. On the interior of your home, this is purely a style choice.

Cost to install window trim varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.

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The information provided by our cost guides comes from a great variety of sources, including specialized publications and websites, cost studies, U.S. associations, reports from the U.S. government, contractors and subcontractors, material suppliers, material price services, and other vendor websites. For more information, read our Methodology and sources
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Cost to install window trim varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.

The information provided by our cost guides comes from a great variety of sources, including specialized publications and websites, cost studies, U.S. associations, reports from the U.S. government, contractors and subcontractors, material suppliers, material price services, and other vendor websites. For more information, read our Methodology and sources