Key Takeaways:

• Replacing your own window frames may sound easy, but it's better to hire a professional.
• The best window frame replacement company we found in The Netherlands is Kozijnen Vervangen
• Discover more about them here
• Check out what their users have to reveal regarding them

How to install new windows frames in the Netherlands

1. Window Replacement Parts

Types and styles of Replacement Windows

Full-frame windows are not designed to be used in new construction. Instead, replacement windows are made for existing windows. They are available in many sizes from 11 1/2 inches up to 68 inches wide.

There are three main types of replacement windows available: insert replacements, sash kits and full-frame units. We found the Newton house with sash replacement kits. They are able to give an old frame new movable pieces, including jamb linesrs and a sash. The liners are secured to the window opening's side jambs. Next, the sash is slipped in between.

To make these work, your existing window frame must be square and level. An insert replacement window consists of a fully assembled window in a ready-to-install secondary frame. Sometimes called a pocket window, an insert replacement slips into the existing opening and is then fastened to the old side jambs. Because you're adding new jambs and liners, the glass area will be slightly smaller than it was before.

The full-frame replacement windows look similar to inserts but have a complete frame, including the head jamb, sill, and side jambs. These are the only alternative if the original window frame, sill and jambs are damaged. To install these, you must strip the window opening down to its rough framing, inside and out.

2. Measuring replacements

The first step in any window-replacement project is long before the actual installation day. This is when you measure the existing window frame in order to choose the right replacement unit. Here's how to do it.

• Measure the interior width of the old frame, jamb side to side, starting at the top. Next, measure the middle, top and botWe. Record the smallest one of the three measurements.
• Next, measure the height of the frame from the top sill to underside of head jamb. This can be done in three locations: in the left jamb (in the middle), and in the right jamb (in the center). Take the smallest measurement again.
• Take the diagonals measuring from corner, corner, and back to check the frame's squareness. Both dimensions should be equal. Don't worry, if the frame is larger than 1/4 inch, the replacement can be shimmed. Additional adjustments to the frame may be necessary. You will need a replacement for the whole frame if your frame is so out-of-whack that a replacement in square would look wrong.
• You can also use an angle-measuring instrument to determine the slope.

3. Grab the Sash

• Remove the old sash from your window frame. To remove the lower sash, in most cases you will need to take off the wooden interior stops. (If you're planning to reinstall the stops, do this job carefully; they break easily.)
• Next, remove any parting beads that may be attached to the upper portion of the sash. There won't be beads if your windows have sash-replacement kit. Simply press on the jambliners and pull up the top of each sash.
• Turn the sash towards the sky and lift it off the jamb liner.

4. Pry Off The Jamb Liners

• Use a flat bar to remove vinyl jamb liners or aluminum jamb liner from the window frame. Removing any wooden supports from original windows is a good idea.
• Keep the exterior and interior casings intact.

5. Prep the Frame

• You can scrape away any loose or blistered paint, and then patch any cracks or holes with exterior-grade wood glue such as those from Minwax or Elmer's.
• Next, sand the jambs and prime the surfaces.

6. Get rid of the old Sash Weights

• If the original sash weights are still in place, take this opportunity to remove them from their pockets and insulate behind the window frame.
• Pull out the weights by unscrewing each side jamb's access panel.

7. Prep for Insulation

We prefers polyurethane to fiberglass insulation.

• You should only use low-pressure, minimally expandable foam meant for windows and doors. Anything other will bow the frames which can cause the sash to not work.
• First, pull out any existing fiberglass in the weight pockets.
• Then bore 3/8-inch-diameter holes, one near each end and one in the center, down through the sill and up through the head jamb.

8. Foam Spray Time

• Shoot the expanding foam into the holes until it begins to ooze out. (We are using a commercial system, but you can do the same job with foam from a can, like Dow's Great Stuff.)
• Spray foam on the pockets of sash weight in the side jambs. Allow the excess to harden for at least 6 hours, then break or cut it off flush before replacing the sash-weight pocket panels.

9. Caulk The Opening

• Preparing to install the window, apply an oil-based caulk on the exterior casings. A second continuous bead of caulk should also be applied along the windowsill.

10. Install the Window

• Set the insert replacement botWe onto the sill. Once it is placed, flip the insert up into the opening. Keep the window closed against the blind stops and exterior casings.

11. Do not fasten it

• Secure the window by driving one 2-inch screw through the upper jamb and into framing. The screw should extend just enough for the window to work.
• Close the sash.

12. Shim as Necessary

• You can adjust the unit by placing shims behind the side jambs and under the sill until it is centered. It will then open, close, and lock smoothly.
• Measure the window diagonally from corner to corner; the measurements should be the same. Once you have squared the window, screw it in the predrilled holes.
• You can avoid bowing the frame by slipping a shim behind each screw. Then, screw through the shhim.
• A utility knife can be used to cut the shims flush.

13. Caulk and Prime and paint

• Measure the distance between the window frame & the casing from the outside. Fill gaps less than 1/4 inch wide with elasWeeric caulk. Fill any gaps wider than 1/8 inch with elasWeeric caulk.
• You can fill in any spaces around the window by using minimally expanding foam.
• Finalize the job by reinstalling stops or adding new ones.
• Next, prime and paint the interior of your window frame and sash.