Window Restoration: What to Expect
The following blog post is targeted for Double Hung Windows. However, some of the content is applicable for other uses as well:
Step 1 — Assess & Document
We begin by inspecting the window and documenting existing conditions before work begins. Measurements and the condition of the sash, frame, and hardware are recorded.
Step 2 — Removal & Opening Protection
The window sash is carefully removed from the frame. A fitted temporary plywood panel with a plexiglass window is installed in the opening to protect the interior while allowing natural light to pass through.
Step 3 — Sash Restoration
Each sash is restored off site in a controlled shop environment, allowing careful repairs and proper finishing.
Glass is removed, cleaned, and reused when possible
Old paint and glazing putty are removed
Cracks, rot, or missing wood are repaired using epoxy or custom-milled wood
Sash is primed and painted (two coats interior, three coats exterior)
Edges of the sash are oiled for smooth movement
Glass is reset with new glazing compound and painted after curing
Step 4 — Frame Restoration
The surrounding frame is inspected and serviced. Rot, paint buildup, or deteriorated material is removed. Pulleys and counterweights are cleaned, lubricated, and adjusted
Step 5 — Reinstallation & Fine Tuning
The restored sash is reinstalled and adjusted for smooth operation. Locks, pulleys, and hardware are cleaned, repaired, or replaced as needed. The window will open smoothly, seal properly, and maintain its original character.
Optional Upgrades
Hardware Restoration — clean, polish, re-plate, or reproduce original hardware
Weatherstripping — bronze, silicone bulb, or brush seals
Maintenance Program — periodic inspection and service to keep windows operating smoothly
Classic Door
Classic Door works with builders, architects, and homeowners to develop restoration solutions for doors and windows.
Visit our showroom to explore doors, hardware, and working displays that help bring ideas to life.
Showroom:
300 Coddington Hwy, Unit 101Middletown, RI 02842
Learn more about our design approach:theclassicdoor.com/project-design
New Outlook Window Restoration
For historic window restoration, Classic Door partners with New Outlook Window Restoration, a company specializing in the repair and restoration of traditional wood windows.
Providing restoration services since 1999, their team focuses on preserving historic windows while improving durability and long-term performance. Restoration work is completed off site in a controlled shop environment, allowing detailed repairs and consistent finishing standards.
Learn more: newoutlookwindowrestoration.com
