Steel Window Restoration by Heritage Steel Window Repair
Restoration is the complete version of repair. Each sash is stripped to bare metal, rust is removed, damaged sections are repaired or replaced, and the window is primed, painted and reglazed. When we finish, the window opens, closes and seals the way it did when it was new.
Restoring original steel windows keeps the slim profiles and multi-lite pattern that give older buildings their character. It also uses far less new material than tearing the windows out and replacing them.
Our Restoration Process
We start with a survey of every window, noting broken glass, missing hardware, rust damage and whether each vent operates. You get a written scope with a price per window, so you can restore everything at once or in phases.
Sashes that need bench work come back to our shop. Fixed frames are restored in place. Openings are protected and secured each day, and in occupied homes we work room by room.
What Restoration Includes
Energy Performance
Restored steel windows are tighter than most people expect. New weatherstripping stops the drafts, and where efficiency matters we can glaze with laminated or low-E glass or add interior storm panels that are nearly invisible.
Masonry Around the Windows
Steel windows set in brick and stone often have cracked sills, rusted lintels or failed mortar around the frame. Our crew handles that masonry work as part of the same project, so the window and the wall are sealed together.
We serve Philadelphia, the Main Line, Bucks, Chester and Delaware Counties, South Jersey and Wilmington. Related services: window restoration, historic window restoration, historic preservation.
Restoration Cost and Value
Restoration costs more per window than a simple repair because every sash is stripped, derusted, primed, painted and reglazed. It is still usually a fraction of the price of new custom steel windows, and the original frames will last decades more once they are kept painted.
We price restoration window by window after a survey, so you can restore the most visible elevation first and do the rest later.
Steel Window Restoration Prices in Philadelphia
Starting prices for 2026 in our Philadelphia service area. Your final price depends on the number of windows, their condition and access, and is confirmed in a written estimate after a free on-site visit. No work starts without your approval.
In-Place Refresh
- Loose paint and putty removed
- Rust spots treated
- Reglazed where needed
- Primed and painted
Full Restoration
- Shop stripping and derusting
- Weld repairs as needed
- Full reglazing
- New weatherstripping
Restoration + Glazing Upgrade
- Everything in Full Restoration
- Laminated or low-E glass
- Hardware rebuilt
- Interior storm option
Price List
| Service | Price | Unit |
|---|---|---|
| Window survey with numbered photos | $250 - $600 | per house |
| Strip and derust sash (shop) | $250 - $500 | per sash |
| Complete reglazing | $180 - $400 | per sash |
| Weatherstripping install | $80 - $160 | per vent |
| Masonry repair at sill or jamb | $200 - $600 | per opening |
| Temporary board-up during shop work | $40 - $80 | per opening |
Prices include labor and standard materials. Lead-safe work practices are included on pre-1978 homes. Travel outside our usual service area may add a trip charge, quoted in advance.
Recent Steel Window Restoration Projects
Brick Home Steel Window Restoration · Wilmington, DE
Full restoration of original steel windows in a three-story brick house, with masonry repairs around the openings by our crew.
Sunroom Casements with Stained Glass Transoms · Bryn Mawr, PA
Octagonal sunroom with steel casements under stained glass transoms. Every sash was stripped, repaired, primed and reglazed in place.
Brick Warehouse Sash Restoration · Philadelphia, PA
Boarded steel sashes on a brick warehouse brought back to working order: rust removal, new glass and a durable paint system.
Limestone Building Steel Sash Restoration · Norristown, PA
Industrial steel sashes in a limestone building restored instead of replaced. Broken lites replaced and operable vents freed up.
Steel Window Restoration FAQ
A typical house with 15 to 25 windows takes two to four weeks, depending on how many sashes need shop work.
In most cases, yes. Comparable new steel windows cost several times more than restoration, and they take months to fabricate.
Some frames can accept thin insulated glass. Where they cannot, laminated or low-E glass and interior storms improve comfort without changing the look.
Get a free steel window restoration estimate
Call (215) 555-0163 or send us photos of your windows.