5 Ways to Finish Newly Installed Windows * bigfinish.com

How To Finish Newly Installed Windows

Installing new windows is an excellent way to improve your home’s energy efficiency, curb appeal, and overall comfort. However, the job isn’t finished once the windows are in place. You still need to finish them properly to ensure they function correctly and look their best.

In this article, we’ll guide you through the steps on how to finish newly installed windows like a pro. We’ll cover everything from trimming the windows to caulking and painting. So whether you’re a DIY enthusiast or a professional contractor, read on for all the information you need to get the job done right!

Trimming the Windows

The first step in finishing newly installed windows is to trim them out. This involves attaching molding around the edges of the windows to cover the gaps between the windows and the walls. Trimming not only improves the appearance of your windows but also helps to seal them against air and water infiltration.

Preparing the Window Frame

Preparing the window frame is a crucial step before installing new windows. It ensures that the windows fit properly, are sealed effectively, and operate smoothly. Here are the detailed steps involved in preparing the window frame:

1. Remove Old Windows and Trim

If you’re replacing existing windows, carefully remove them by prying the frames from the exterior and interior. Use a pry bar and hammer to gently loosen the frames, taking care not to damage the surrounding walls or siding. Once the old windows are removed, carefully remove the trim and casing around the openings.

Next, use a measuring tape to verify the dimensions of the openings. Compare the measurements to the new window sizes to ensure a proper fit. Any inconsistencies or variations should be addressed before installing the new windows.

Tools Required:
Pry bar
Hammer
Measuring tape

Make sure to clean the openings thoroughly to remove any debris, dust, or old sealant. This will provide a clean surface for the new windows to adhere to.

Once the window frames are installed, you can proceed with applying exterior trim, such as casing or siding, and interior trim, such as baseboards or window stools, to complete the installation process.

Installing the Casement

Installing the casement is the most crucial step in finishing newly installed windows. Here’s a step-by-step guide:

**Prepare the Window Frame:** Ensure the window frame is level and square by using a level and a square. Adjust the frame’s position as necessary.
**Install the Casement:**
1. Align the casement in the frame and check for a snug fit. Make sure the latching mechanism is working properly.
2. Secure the casement with screws through the pre-drilled holes. Start with the top screws and work your way down.
3. Check the alignment and operation of the casement to ensure it opens and closes smoothly.
**Seal the Casement:** Apply a bead of caulk around the perimeter of the casement, including the corners and edges. Use a caulk gun and a smooth beading tool to achieve a neat and watertight seal.
**Install Trim:** Cut and install window trim around the edges of the casement to cover the raw edges and give the window a finished look. Secure the trim with nails or screws.
**Paint or Stain:** If desired, paint or stain the trim and casement to match the surrounding décor.

Additional Tips:

Use weather-resistant caulk specifically designed for windows.
Choose trim that complements the style of your home and windows.
Allow the caulk to cure completely before painting or staining.

Fitting the Head Sash

Once the jambs are in place, it’s time to fit the head sash. The head sash is the topmost horizontal member of the window frame and houses the upper sash.

To fit the head sash, follow these steps:

1. Measure and Cut the Head Sash

Measure the width of the window opening between the jambs. Cut the head sash to this length, ensuring that it’s square and free of any imperfections.

2. Connect the Jambs to the Head Sash

Place the head sash on top of the jambs, ensuring that it’s centered. Drive screws through the jambs and into the head sash to secure it. Use at least two screws on each side for maximum stability.

3. Check for Level and Square

Using a level and square, check that the head sash is level and square relative to the jambs. Make any necessary adjustments by shimming the head sash or jambs as needed until it’s perfectly aligned.

Below is a table summarizing the steps involved in fitting the head sash:

Step	Action
1	Measure and cut the head sash
2	Connect the jambs to the head sash
3	Check for level and square

Installing the Sills

The sill serves as the support for the window and is typically made from wood or engineered wood products. Here’s a detailed guide on how to install the sills:

1. Measure and Cut the Sills

Measure the width of the window frame and cut the sill to the same length. Ensure that the sill is wide enough to extend slightly beyond the sides of the window frame.

2. Level and Secure the Sills

Place the sill on the bottom of the window frame and level it using a carpenter’s level. Use galvanized screws or nails to secure the sill to the frame.

3. Install the Weep Holes

Weep holes are small openings that allow moisture to drain from the window. Drill weep holes in the bottom of the sill to prevent water damage.

4. Flashing the Sill

Flashing is a waterproof material used to prevent water penetration. Install flashing over the sill and extend it down the exterior wall.

Type of Flashing	Installation Method
Self-Adhesive	Peel and stick the flashing to the sill and exterior wall.
Roll-On	Apply a liquid waterproofing agent to the sill and exterior wall, then cover with a reinforcing fabric.
Metal	Cut metal flashing to size and secure it with screws or nails.

Overlap the flashing sections and seal them with caulk or sealant.

Finishing Newly Installed Windows: Trimming the Jambs

1. Measuring the Jambs

Use a tape measure to determine the height and width of each jamb. Measure from the inside edge of the jamb to the outside edge of the trim.

2. Cutting the Trim to Length

Cut the trim to the measured lengths using a miter saw or a handsaw with a miter box. Miter the ends of the trim at a 45-degree angle to create a seamless joint at the corners.

3. Attaching the Jamb Trim

Apply a bead of construction adhesive to the back of the trim and press it firmly into place against the jamb. Use a nail gun or finishing nails to secure the trim in place.

4. Mitering and Attaching Jamb Extensions

If the jambs are too narrow, you may need to add extensions. Cut the extensions to length and miter the ends. Attach them to the jambs using construction adhesive and nails.

5. Installing Window Stop

Type	Purpose
Regular Stop	Holds the window sash in place and provides a weather seal.
Parting Stop	Separates double-hung windows into upper and lower sections.
Mullion Stop	Joins two or more windows together in a larger frame.

Apply construction adhesive to the back of the stop and press it into place against the jamb. Use nails to secure the stop. Check the operation of the window sash to ensure it fits snugly against the stop.

Fitting the Side Casings

1. Measure the Opening

Determine the width and height of the side casing opening using a tape measure. This measurement should include the quarter-round jamb extension.

2. Cut the Side Casings

Cut the side casings to the measured length using a miter saw or hand saw. Miter the tops of the casings at a 45-degree angle.

3. Attach the Side Casings

Apply a thin bead of caulk to the back of the side casing. Press the casing into the opening and nail it in place using 2-inch finishing nails every 12-16 inches.

4. Fill Nail Holes

Countersink the nails slightly below the surface of the wood using a nail set. Fill the holes with wood filler and allow it to dry.

5. Sand and Prime

Once the wood filler has dried, sand the casings smooth and apply a coat of primer. This will help create a uniform surface for painting.

6. Paint or Stain the Casings

Apply two coats of paint or stain to the side casings. Allow each coat to dry thoroughly before applying the next. Use a brush or roller to ensure an even finish.

Paint Type	Recommended Sheen
Latex Paint	Semi-gloss or Eggshell
Oil-based Paint	Semi-gloss or Satin
Stain	Satin or Semi-gloss

Applying the Apron and Stool

The apron is a piece of trim that covers the gap between the window frame and the exterior siding. The stool is a piece of trim that covers the gap between the window frame and the interior wall.

To apply the apron, first cut it to the desired length. Then, nail it to the window frame using 2-inch galvanized nails. Make sure to countersink the nails so that they are flush with the surface of the apron.

To apply the stool, first cut it to the desired length. Then, nail it to the window frame using 2-inch galvanized nails. Make sure to countersink the nails so that they are flush with the surface of the stool.

Here are the steps to finish installing new windows and applying the apron and stool:

Step	Description
1	Cut the apron to the desired length.
2	Nail the apron to the window frame using 2-inch galvanized nails.
3	Countersink the nails so that they are flush with the surface of the apron.
4	Cut the stool to the desired length.
5	Nail the stool to the window frame using 2-inch galvanized nails.
6	Countersink the nails so that they are flush with the surface of the stool.
7	Caulk the joints between the apron, stool, and window frame. Use a paintable caulk that matches the color of the trim. Once the caulk is dry, paint the apron and stool to match the rest of the trim.

That’s it! You’ve now successfully installed new windows and applied the apron and stool.

Finishing Touches: Caulking and Painting

Caulking

Caulking is essential for sealing gaps around windows and preventing water damage. Here’s a step-by-step guide:

Clean the area around the window thoroughly.
Choose the appropriate caulking material for your application.
Apply the caulk to the gap, using a caulking gun.
Smooth the caulk using a finger or a caulking tool.
Allow the caulk to cure completely before painting.

Painting

Painting your windows not only enhances their appearance but also protects them from the elements. Here’s how to do it:

Prepare the surface by cleaning and sanding it.
Prime the surface with a primer compatible with your paint.
Apply multiple coats of paint, allowing each coat to dry thoroughly before applying the next.
Use a brush or roller for a smooth finish.

Choosing Caulk and Paint

Caulk Material	Advantages	Disadvantages
Silicone	Flexible, waterproof	Can be difficult to remove
Acrylic	Paintable, easy to apply	Less flexible than silicone

Paint Type	Pros	Cons
Latex	Easy to clean, water-based	Not as durable as oil-based
Oil-based	Durable, resistant to moisture	Strong odor, requires thinner

Adding Hardware (Handles and Locks)

Installing Handles

Handles provide a secure and convenient way to open and close windows. Typically, handles come in sets, one for each side of the window.

To install a handle, follow these steps:

Align the handle with the pre-drilled holes on the window frame.
Insert the screws and tighten them securely using a screwdriver.
Check that the handle operates smoothly and securely.

Installing Locks

Locks provide an added level of security to your windows. Different types of locks are available, including keyed locks, lever locks, and tilt latches.

To install a lock, follow these steps:

Determine the type of lock required for your window.
Remove the existing lock (if any) by unscrewing it.
Position the new lock in place and secure it using the provided screws.
Test the lock to ensure it operates smoothly and securely.

Types of Window Locks:

Type of Lock	Description
Keyed Lock	Requires a key to lock and unlock the window. Provides the highest level of security.
Lever Lock	Engages with a lever or handle to lock and unlock the window. Offers moderate security and ease of use.
Tilt Latch	Allows the window to be opened in a tilted position for ventilation. Provides minimal security but can be convenient for airflow.

How to Finish Newly Installed Windows

Once you have installed new windows, there are a few finishing touches you need to add to ensure they are properly sealed and weatherproofed. These steps will help you complete the installation and protect your windows for years to come.

1. Install window trim. Window trim helps to seal the gap between the window frame and the wall, preventing air and water from leaking in. It also gives your windows a finished look.

2. Caulk around the window frame. Caulk is a sealant that helps to waterproof the gap between the window frame and the wall. It is important to apply caulk both inside and outside the window.

3. Paint or stain the window trim. If you are not happy with the natural finish of the window trim, you can paint or stain it to match your decor.

4. Install window screens. Window screens help to keep insects and debris out of your home. They are also important for ventilation, allowing fresh air to circulate.