Do-It-Yourself Double Glazing Repairs

Double glazing can keep a home warm but it is susceptible to problems over time. Problems such as leaking glass, broken glass or foggy windows could result in a decrease in energy efficiency, expensive repairs, and health problems.

FENSA certified installers can help you maintain and repair your double-glazed windows to meet energy efficiency requirements for legal compliance and potential resale value.

Broken Panes

A broken window can create a lot of problems, as it can hinder airflow, light, and even pests. You can employ a professional to repair the broken pane but you can also fix it yourself for a fraction of what a professional would charge.

You'll have to remove the old window. To shield yourself from lead and glass dust shards, put on protective glasses as well as gloves and a mask. Set up a level surface that is well ventilated. Place a dropcloth on the work surface to take any glass that falls as you remove it. You should keep a HEPA vacuum close by to remove dust, debris, and hazardous waste while you work.

Make use of a utility knife to scrape the old glass putty off once the old window has been removed. Be careful not damage the wooden frame of the window. If the old putty seems particularly stubborn, try using a heat gun to soften it prior to scraping it away with a knife. Wear safety goggles and be careful to avoid getting hot wood or glass fragments in your eyes while using a heatgun.

Next, make Emergency Glazier sheffield Links to an external site. to receive the new pane. Measure the opening, and subtract 1/16 inch both ways to allow for expansion and contraction of the wood. Then, let the local hardware store cut you a piece double-strength plastic that fits the opening precisely. Dry-fit the glass to ensure it fits perfectly before putting it in.

After you have the glass in place, apply a tiny amount of caulk made from latex around the edges of the opening to create a good weather seal. Then, you can install the glazing points to hold the new pane in the proper position. For standard window glass sizes, you will only need to put in two points for each edge.

After the new glaze is dry and dried, you can paint over it to match the frame. If you're worried about the potential for cracks you can use a sturdy strip of masking tape to prevent superficial cracks from getting worse.

Frames that are damaged

The first thing to do is look over the frame. You'll need to have it professionally repaired if there are cracks or corrosion or rust, or if the frame is broken into two pieces. Metal frames can't be glued together and attempting to weld or solder them by yourself will cause permanent damage.

If the frame is not damaged, you may apply a small amount of brush and some conservation detergent or water to clean the frame with care. This will remove any grease, dust or dirt that may have accumulated over time. Cleaning old frames using intricate carvings or gesso may reveal the original finish beneath the dust.

If the frame is damaged, you'll require a pair needle-nosed pliers, wood putty and sandpaper, aswell with a small clamp. Remove the back of the frame, the photo, and the glass of the frame. The frame should be removed at the corners, where you'll see the nails or brads. If possible, you can open the joints and scrape out any glue that is old and apply new glue.

Loose Compound

The glazing compound used to hold the glass panes in their wooden frames is an essential component of the energy efficiency of any historical building. It seals wood, bonds glass to frame and sheds water to protect it caused by water over time. The compound may break or have gaps that allow air to get in the frame, reducing insulation values and increasing utility bills. Keeping up with repair work on your double-glazed windows helps keep them running smoothly and efficiently.


If you see drafts at the edges of your window frames the weatherstripping seal could be worn out or loose. Replacing this seal reduces the cost of energy and increases the comfort of your home. If you hear loud sounds from outside, such as traffic and machinery it could be a sign that the glazing tape is damaged or has gone missing.

Remove the old tape from around the edge of the frame and scrub the area thoroughly. Apply a new piece of tape to the frame's edge and press firmly. This tape can be found at any hardware store and is an inexpensive option to enhance your double-glazed window's performance.

Standard super glues are excellent for metal, wood, and other common materials. However, they're not ideal for glass surfaces. Look for a glass-based adhesive, such as Loctite Extreme Glue Gel. This type of adhesive is made to resist moisture and UV light which makes it a great alternative for fixing double-glazed windows.

You'll need to use a degreaser to clean the surface of your window frame and sash before you begin repairing it. This will ensure that the new adhesive sticks properly. Prepare the area that will be glazed by using an oil-based primer. Be sure to prime the entire area, including the back of the sash, where it is positioned in the frame.

You can repair most double-glazed window problems However, when windows are badly damaged or are no longer able to provide sufficient insulation, replacing them could be the best choice. Talk to a glazier who is experienced or handyperson to help you make the right choice. Regular inspection and repair of your windows will ensure they appear their best and operate smoothly for many years to come.

Foggy Panes

Foggy windows occur when the window seal is damaged. This allows air to get in and slowly accumulate moisture between the glass panes. Foggy windows may cause many issues, from calcium deposits and condensation to black stains or fungus. It's not just unsightly but also results in lower energy efficiency and increased heating or cooling costs. Fortunately, the issue can be fixed. Foggy windows are often caused by a simple buildup of moisture which is why the first step is remove as much moisture as you can. This can be done by applying a defogging spray or using shaving cream. If none of these solutions work, it's time to get a professional.

The reason double pane windows function is because they have a space between them. The space is typically filled with argon or krypton which are non-toxic gases that are more dense than air, and can hinder heat transfer even more. If the gas is escaping this means that your windows aren't well-insulated as they should be. The replacement of your windows with new IGUs will not only stop the fogging, but also improve your home's energy efficiency as well.

Many homeowners believe that they have to replace their entire window if it starts to get foggy, however this isn't always the case. In fact some glass shops offer to replace only the insulating glass unit (IGU) without replacing the entire frame or sash. This is a less expensive option and could be equally efficient in fixing your windows.

Although there are a few DIY solutions for window condensation, such as shaving cream or defogging spray, it is best to consult a professional ensure that the job is done correctly and safely. A window repair specialist will first cut holes into the glass, and then inject cleaning solution between the panes. The window repair specialist will scrub the surface and dry the inside, restoring the appearance and function of the window. Contact a local window replacement or repair expert to learn more about the process and arrange a no-pressure consultation at home today.