How to Restore Old Windows

Why Fix Antique Style Windows?

Besides the unique character antique windows give a building, repairing old windows is often more economical and environmentally friendly than you might think and, in most cases, the better choice.

Windows jammed shut, sash cords snapped, pane glass broken, and missing pieces of hardware can all be easily repaired. At Apex Window Werks, we always encourage people to refurbish old windows whenever possible.

Benefits of Historic Wood Windows

Fixing old-time windows preserves a building’s historical integrity. Antique windows typically have craftsmanship and detail modern windows lack; restoring old wood windows enhances your property’s curb appeal and value substantially.

• Improved aesthetics: Historic wood windows lend charm and character to any building;
• Greater comfort: Wooden windows provide natural insulation, helping keep your home more comfortable in winter and summer;
• Reduced energy bills: Some models offer a higher R-value (a measure of thermal resistance) than modern windows;
• Solid and durable: Strong and built to last, historic wood windows have 100-year lifespans. Even with frequent painting, they remain watertight and protect your interiors from the elements;
• Easy maintenance: Rustic windows are simple to clean and maintain, so long as you have a regular maintenance schedule. A wash and wax will keep them looking their best. They also respond well to periodic repairs and painting.

What You’ll Need to Restore Old Wood Windows

Tools and materials you’ll need when rebuilding old windows include:

Tools

• Paintbrushes
• Palm or orbital sander
• Putty knife
• Glass scrape
• Paint scraper
• Heat gun (with a glass protection nozzle) or hair dryer
• Protective gloves
• Pliers

Supplies

• Sandpaper (various grits)
• Window glazing putty
• Glazing pins
• Paint primer
• Window paint or stain
• Painter’s tape (optional)
• Mineral spirits
• Paint stripper
• Wood filler
• Wood glue

How to Prepare for Old Window Restoration

To determine if your existing windows need to be replaced or require repairs, scrutinize them for signs of damage, such as:

• Broken seals along the caulk
• Broken or rotted wood
• Chipped paint
• Cracked glass
• Cloudy glass
• Failing mechanisms, such as windows that are stuck closed or won’t lock
• Separated glazing

You should hire a local window replacement company if you find significant damage. If it’s minor and requires repairs, wait until the spring or summer to fix old windows – the warm weather reduces the chances of warping wood.

You can find the necessary supplies for window restoration at your local hardware store, but it is important to remember that the cost may be higher if you purchase new wood or glass panes.

Antique Window Restoration Steps

Follow these steps to restore an old wooden window frame:

#1. Take Out the Glass

It is suggested that you remove the vintage window panes from your window frame entirely if you need to make intensive repairs, even if it is a risk that it can break.
When heating the window glazing to peel it off, use a heat gun or hair dryer, and then use a putty knife to finish scraping it off the frame. To remove the glazing pins that are located around the glass, use pliers. Exercise caution during the process.
Carefully scrape away the glazing by using a glass scraper. Tap the glass lightly to loosen the pane from the window sash. Gently remove the glass and keep it safe.

#2. Strip the Window Frame Paint

If you want to spruce up your window, you could either strip and repaint it or just touch up certain areas. It all comes down to what condition the window is in and what type of effect you’re aiming for.
Start by taking off any flaking or chipped paint with a scraper. Chemical paint strippers can help eliminate larger areas of paint if it’s been there for a while, but you have to be sure to have proper ventilation and wear protective gear. Be mindful that some older homes could have lead paint, which demands a more delicate removal.

#3. Repair What’s Broken

If you want to restore your old wood windows, it’s not just about making them look nice. It’s also important to make necessary repairs. If the wood has rotted, consider hiring a local carpenter to fabricate a replacement.
You can probably repair minor damages yourself. Fill any cracks or holes with wood filler, use wood glue to fix splintered or broken pieces, and replace any window hardware that has rusted or been broken.

#4. Sand Down the Window Frame

To make your window frame and sash ready for painting, use an orbital or hand sander for sanding them down. Lightly go over the surface and try to sand as little as possible to avoid warping and compromising the fit of the pieces.
Begin with a 40-grit sandpaper to remove the large nicks and imperfections, and then use a finer one to get a smooth and even finish. For windows with intricate designs or detailed areas, sanding by hand is recommended.

#5. Clean the Window

Vacuuming the surface after sanding to eliminate dust particles is necessary before painting. After vacuuming, use mineral spirits to clean the area completely. Always wear protective gloves when handling chemicals, and be aware mineral spirits can potentially weaken latex gloves.

#6. Paint Your Old Window

After cleaning your window, it’s time to paint! Begin using a primer or pre-stain (unless you have a two-in-one paint product), and once it is dried, use either wood stain or enamel paint for windows to help prevent the window from sticking and ensure the paint can survive outdoors.

If you did not remove the glass, use painter’s tape before painting. Allow the paint to dry thoroughly between layers, and lightly sand with 240-grit sandpaper to make the surface smooth and for the paint to stick better.

#7. Put the Glass Back

Once the paint on your window sash is dry, place the original glass pane or a new one in the frame. Fit the pane securely with glazing pins, then use glazing putty to fill any gaps between the frame and the glass. Ensure the seal is airtight, and use a putty knife to remove any extra putty and smooth the surface.

Don’t Forget About Lead Safety!

If your house was built before 1980, there is a good possibility that multiple windows could have been painted with lead-based paint.

To ensure safety during old window revival, take the necessary precautions:

• Contain the area of immediate work, making sure to construct a 5′ perimeter of protection that will collect and contain any dust or debris;
• Working “wet” whenever possible is highly recommended, as misting and wet wiping surfaces can help reduce lead dust;
• Wear protective gear, such as Tyvek slippers, a hat, goggles, and, most importantly, a snug-fitting respirator, as doing so can protect your eyes, hair, and lungs from dust;
• Avoid eating, drinking, or smoking while working;
• When you’re done, change clothing and wash all garments separately from other items.
• Before taking your tools out of the containment area, make sure to really clean them with a damp cloth.

How Much Does It Cost to Restore Old Windows?

The cost of restoring historic windows can vary widely depending on the size, style, and condition. Generally, you can expect to pay anywhere from $200 to $1,000 and more per window, including materials, labor, and installation. Don’t hesitate to contact us – we can provide you with an accurate quote for fixing old windows.

Restoring Old Windows DIY vs. Hiring a Pro

Suppose you want to save money while potentially reducing your energy costs. In that case, it may be a good idea to restore windows in your house rather than replace them. However, this task can be difficult and take a long time, especially if the windows are ancient and not a standard size – restoring wooden windows may require sixteen hours or more!

It could also involve getting help from professionals such as a glazier for glass repairs or a carpenter for repairs to a rotted frame. Additionally, even if the damages are minor, you might still need a professional to upgrade your windows to double or triple panes. Therefore, unless you are highly experienced, in the long run, it’s better to hire skilled restoration specialists who can handle a double pane replacement or replace old wood windows with vinyl, and more.

In conclusion, with improved aesthetics, greater comfort, and reduced energy bills, antique window restoration provides many benefits while preserving the building’s historical integrity.

It is important to take the necessary safety precautions when restoring old windows, and it is recommended to hire a professional if you are inexperienced. Apex Window Werks proudly services Illinois, Wisconsin, and Minnesota.