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Historic Window Restoration in Los Angeles Save Your Original Wood and Steel Windows
The windows in a 1915 Pasadena Craftsman or a 1928 Glendale Spanish Revival were built from dense old wood and handmade glass you can’t buy new. PaneRight LA connects you with local contractors who restore original wood sash and steel casement windows so they open, lock, and seal again, and keep the look that makes your home worth owning. Our window restoration services cover Pasadena, Altadena, Glendale, Beverly Hills, Santa Monica, and the rest of our service area. Call (424) 230-8336 for a free assessment.
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What Old Window Problems Can Restoration Fix?
Painted shut sashes, broken cords, drafts, rattles, loose glass, and rotted sills can all be fixed in the original window. Restoration keeps the sash and frame and repairs the parts that wore out.
01
Are Your Wood Windows Painted Shut or Hard to Open?
Decades of paint glue the sash to the stops and parting bead. Forcing it cracks the glass or splits the wood. Contractors cut the paint lines, remove the stops, free the sash, and strip the built-up paint from the edges so it slides again. Swollen wood gets planed and sealed so it doesn’t stick next winter.
02
Why Won’t Your Sash Window Stay Up?
Double-hung windows in older LA homes use hidden weights on cotton cords that run over pulleys in the jamb. When a cord breaks or rots, the sash drops. Contractors open the weight pocket, fish out the weight, and hang a new cord or chain. The sash stays wherever you leave it, just as it did when the house was built.
03
Are Your Old Windows Drafty, Rattling or Rotting at the Sill?
Gaps around the sash let in drafts and rattle in Santa Ana winds. Bare wood at the sill soaks up rain and starts to rot. Contractors add hidden weatherstripping, reset loose stops, and repair soft wood with epoxy consolidant or a Dutchman, a patch of matching wood cut into the damaged spot. Sill rot that hasn’t spread through the wood can be repaired without replacing the whole sill.
What’s Included in Our Historic Window Restoration Service?
Every window restoration and repair job starts with a window-by-window assessment and a written scope. The work can include freeing painted sashes, new cords, glazing, wood repair, weatherstripping, hardware cleaning, and a primed finish ready for paint.
01
Can You Rebuild Wood Sashes, Sash Cords and Weights?
Yes. Contractors take sashes out, repair loose joints at the rails and stiles, replace broken muntins, and rehang them on new cord or chain. The original weights stay in the wall. Parting beads and stops that crack on removal get replaced with matching millwork.
02
Can You Restore Original Steel Casement Windows?
Yes. Steel casements are common in 1920s and 1930s Spanish Revival and Mediterranean homes in Glendale, Beverly Hills, and Pasadena. Contractors free-seize hinges and operators, remove rust, treat the steel against corrosion, reglaze the glass, and repaint. Only sections rusted through need new steel welded in.
03
Can You Save Old Wavy Glass and Replace Glazing Putty?
Yes. Old cylinder glass has a slight wave that new glass can’t copy, so contractors remove it carefully and save every pane they can. Dried, cracked glazing putty is removed and the glass is reset with fresh glazing compound, then primed and painted to seal it. Broken panes can be replaced with salvaged or restoration glass.
How Much Does Historic Window Restoration Cost in Los Angeles?
Angi puts professional window restoration at $300 to $550 per window, with an average job cost of $400. Angi also notes that homes over 50 years old can see prices double or triple, which covers most historic LA homes.
01
How Much Does It Cost to Restore a Double-Hung Sash Window?
The price follows how deep the work goes. A Virginia restoration shop, Gepetto Millworks, cites Atlanta survey prices of $180 to $450 for a tune-up, $450 to $850 for a standard restoration, and $1,100 to $1,800 for a full glass-out rebuild. Lead containment can add $75 to $250 per window, and sill rot can add another $150 to $300. A quote of $1,800 per window is at the top of that range, fair only for a full rebuild.
02
What’s the Most Affordable Way to Fix Old Windows?
Match the work to each window. Some only need a tune-up: free the sash, new cords, fresh weatherstripping. Save the full rebuild for the ones with loose glass and rot. Angi notes a labor discount of about 5 to 10% when many windows are done at once. Do the street-facing windows first if cost is tight, since those matter most for historic review.
Should You Restore or Replace Your Original Windows?
Restore when the wood is solid and the look matters. Replace only when rot runs through the frame or the window was already swapped out years ago. Homes with original metal windows can also read our page on steel casement window restoration.
| Restore | Replace | |
|---|---|---|
| Cost per window | $300 to $1,800 | Similar or higher for matching wood replicas |
| Original look | Kept, including wavy glass | Lost, unless a custom replica is made |
| Historic district approval | Easier | Harder, may be denied |
| Energy | Improved with weatherstripping and storms | Dual-pane glass built in |
| Lifespan | Wood windows last 30+ years with care | Vinyl lasts 20 to 40 years |
InterNACHI lists wood windows at 30 years or more and vinyl at 20 to 40. The National Park Service makes the case for repairing historic wood windows before replacing them.
How Can Restored Windows Be Made Energy Efficient?
Weatherstripping, tight glazing, and storm windows close most of the gap. The U.S. Department of Energy says low-E storm windows, installed inside or outside, can save 12% to 33% on heating and cooling costs, based on the type of window already in the home.
| Upgrade | What it does |
|---|---|
| Hidden weatherstripping | Stops drafts around the sash |
| New glazing putty | Seals loose glass |
| Interior storm windows | Adds a second layer, invisible from the street |
| Low-E storm windows | Cuts heat gain on sunny walls |
Interior storms suit landmark homes in Pasadena and Glendale, since nothing changes on the outside.
How Does the Restoration Process Work, Step by Step?
- Assess. Contractors inspect each window and test paint for lead.
- Scope and quote. You get a written plan and price for each window.
- Approvals. For HPOZ or landmark homes, contractors help prepare what the review board needs.
- Remove. Sashes come out, and the openings are covered for security.
- Restore. Paint stripping, wood repair, reglazing, new cords, and weatherstripping.
- Reinstall. Sashes go back in, balanced and tested.
- Finish. Prime and paint, clean up, and a final walkthrough with you.
What Should LA Homeowners Know Before Restoring Historic Windows?
Historic rules, lead paint, and tax savings all affect your plan.
01
Do Historic District Rules Apply to Your Windows?
If your home is in one of LA’s 35 Historic Preservation Overlay Zones, window work on the outside gets design review before it starts. Pasadena and Glendale run their own landmark district programs, and Pasadena’s Bungalow Heaven is one of the best-known. Repair in kind, which keeps the same material and look, is the easiest path to approval. Swapping wood for vinyl is the hardest.
02
How Is Lead Paint Handled on Pre-1978 Windows?
Paint used before 1978 can contain lead, and historic windows carry many old layers. For homes built before 1978, the EPA requires lead-safe certified renovators, which means sealed work areas, no dry sanding or open-flame burning, and HEPA cleanup. Ask to see the firm’s RRP certificate.
03
Can the Mills Act Lower Property Taxes on a Historic Home?
It can. The Mills Act lets owners of Los Angeles Historic-Cultural Monuments and contributing homes in an HPOZ “receive a potential property tax reduction to help offset the costs of substantial rehabilitation and restoration”. Pasadena runs its own Mills Act program, where owners agree to restore and maintain their homes to the Secretary of the Interior’s Standards. Window restoration is a common part of those plans.
Why Do LA Homeowners Choose PaneRight LA for Historic Window Restoration?
Homeowners pick us for things they can check:
- Repair before replace. Contractors save every original part they can.
- Lead-safe work. Ask to see the firm’s EPA RRP certificate on pre-1978 homes.
- Help with approvals. Scope and photos for HPOZ and landmark review.
- Written scope per window. Tune-up or full rebuild, priced one window at a time.
- Warranty in writing. Ask for a written labor warranty on top of the manufacturer’s warranty.
Where Do Contractors Offer Historic Window Restoration in Los Angeles?
Contractors provide wood window restoration and steel window work in Pasadena, Altadena, Glendale, Beverly Hills, Santa Monica, Pacific Palisades, Burbank, the San Fernando Valley, the South Bay, and Long Beach. Historic Window Restoration services are in demand in Pasadena’s Craftsman neighborhoods and Glendale’s 1920s Spanish homes.
Historic Window Restoration FAQs
How Long Do Restored Wood Windows Last?
InterNACHI lists wood windows at 30 years or more. With paint every few years and glazing touched up when it cracks, restored windows can keep working for decades longer. Upkeep matters more than age.
Are Your Windows Old Enough to Be Worth Restoring?
Windows made before World War II were built from dense old wood and are worth saving when the frame is solid. Mid-century steel casements are worth restoring too. Aluminum sliders from the 1960s and later aren’t restoration candidates; those are better replaced.
Where Can You Find Vintage Windows or Replacement Parts?
Architectural salvage yards in Southern California stock old sashes, glass, and hardware. Sash cords, pulleys, weatherstripping, and glazing compound are sold new. Missing sashes can be built as exact replicas by a millwork shop.
How Long Does Window Restoration Take?
Gepetto Millworks puts labor at 4 to 12 hours per window. A whole house can take one to several weeks, and historic review adds time before work starts. Openings are covered while sashes are out.
Can You Restore Wood Windows Yourself?
Yes, with patience. Homeowners on Reddit restore their own sashes, and many say it takes far longer than expected. Lead paint is the big risk: dry sanding and heat guns spread lead dust. If your home was built before 1978, test first and follow lead-safe steps.
Ready for Your Free Historic Window Restoration Quote?
Call (424) 230-8336 or send photos of your windows through the form. Tell us the age of your home and what’s wrong, and a local contractor will give you a written scope and price for each window. The restoration of old windows starts with knowing which ones can be saved.
PaneRight LA is an advertising and referral service, not a contractor. We connect you with independent local window contractors who may pay us for referrals. Calls may be recorded.