Window Repair & Restoration in Chicagoland

Rotten wood, damaged sashes and sills, foggy glass, broken hardware or windows that no longer open properly? We repair existing windows whenever possible — and recommend full replacement only when it truly makes more sense.

Repair First. Replace When Necessary.

4.9

Wood • Glass • Sashes • Sills • Frames • Hardware

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10+ years of experience

10-Year Woodwork Warranty

20-Year Thermal Seal Warranty

Free In-Home Estimates

Repair First. Replace When Necessary.

Not every damaged window needs to be replaced. We first determine what can be repaired or restored — and recommend replacement only when it truly makes more sense.

OUR FIRST CHOICE

Repair

The better option when the main window structure is still sound and the damage is limited to individual components.

Rotten wood, sills & sashes Localized frame damage Foggy or broken glass Hardware & alignment

Explore Window Repair →

WHEN IT MAKES MORE SENSE

Replace

Replacement may be the better long-term solution when damage is extensive or several major window components have failed.

Severe structural damage Extensive frame rot Major deformation Multiple failed components

New Windows & Doors →

Window Repair Services

Wood Window Repair

Rotten frames, trim, joints and damaged wood.

Window Sill Repair

Soft, cracked or rotten window sills.

Window Sash Repair

Damaged, sticking or deteriorated sashes.

Window Glass Replacement

Foggy, cracked and broken glass.

Window Hardware Repair

Locks, balances, operators and adjustments.

Patio & Sliding Door Repair

Glass, rotten frame, and hardware

How Much Does Window Repair Cost?

Many window problems can be repaired without replacing the entire window. These typical Chicagoland ranges help you plan before your free in-home inspection.

Service	Typical Range
Window Hardware & Alignment	$150–$500
Window Sill Repair	$200–$700
Window Sash Repair	$400–$700
Standard Glass Replacement	$300–$800
Specialty Glass	$500–$1,500

These are typical project ranges, not fixed quotes. Final pricing depends on damage, materials, window size and accessibility.

View Full Window Repair Cost Guide Get a Free Estimate

What’s Wrong With Your Window?

You don’t need to know the technical name of the repair you need. Start with the problem you can see.

Rotten or Soft Wood

Peeling paint, soft wood, cracks or visible decay around the frame, sash or sill.

See Wood Repair Options →

Fog or Condensation Between Panes

Moisture trapped between glass panes usually indicates a failed insulated glass seal.

Foggy Glass Replacement →

Cracked or Broken Glass

Damaged glass can often be replaced without replacing the complete window.

Glass Replacement →

Window Won’t Open or Close

Problems with balances, operators, hinges, locks or alignment can often be repaired.

Hardware & Window Repair →

Rotten Sill or Sash

Localized rot in the sill or sash may be repairable before the damage spreads.

Sill & Sash Repair →

Recent Window Repair Projects

See how we repair damaged windows across Chicagoland — from rotten wood and failed glass to sash, sill and frame restoration.

Rotten sash repair in Orland Park, IL

Alexandra 07/21/2026

Sash repair in Naperville, IL

Alexandra 07/18/2026

Arch glass bottom support reconstruction in Western Springs, IL

Alexandra 07/21/2026

Professional cracked window glass repair in Shorewood IL

Cracked Window Glass Replacement in Shorewood, IL

Eugenia 06/25/2026

Window Repair Specialists Serving Chicagoland

Rotten Window Repair has spent more than 10 years restoring windows that other companies may simply recommend replacing.

Our technicians work with wood windows, insulated glass, sashes, sills, frames, hardware and patio doors. We focus on repairing the damaged component whenever a reliable repair is possible.

When replacement truly is the better long-term solution, we can also help with new window and door installation.

Repairs Backed by Long-Term Warranty

We stand behind the materials and repair methods we use. Qualifying woodwork repairs and insulated glass units are backed by long-term warranty coverage.

Learn About Our Warranty →

10 YEARS

Woodwork Warranty

Qualifying wood window repair and restoration work is backed by our 10-year warranty.

20 YEARS

Thermal Seal Warranty

Qualifying insulated glass units are backed by a 20-year thermal seal warranty.

TRUSTED GLASS SUPPLIER

Cardinal Insulated Glass

We work with Cardinal Glass Industries for high-performance insulated glass units designed for long-term clarity, durability and reliable thermal performance.

Warranty Details

What Chicagoland Homeowners Say

Rotten Window Repair- Window Repair Company

4.9

Based on 60 reviews

review us on

Tom Brzyski

7 months ago

Absolutely fantastic service. They replaced one of my cracked, custom shaped windows. Easy and quick process from quoting to installation. No pushy sales tactics like I have received in the past from other installers. Also, a fantastic crew doing the installation. Will definitely use again and recommend to anyone.

Tim

7 months ago

These guys were absolutely great to work with replacing a bunch of different windows throughout my house including my sliding door. Very professional and friendly during the entire process. Affordable as well! Will definitely use them again in the future cause they were the absolute best!

Kelli Wasielewski

7 months ago

Exceptional service! The repair of our windows was seamless from start to finish! From the quote appointment to the repair appointment! Professional and knowledgeable repair men! They even cleaned up after themselves! Thank you so much! Highly recommend!!

Joseph Fluder

7 months ago

Extremely responsive, good technician, and fair price. I appreciate the support in a pinch.

Jennifer Vojvoda

8 months ago

Had a good experience with this company. They got us an appointment in 2 days and were able to replace the glass in our window in a hour. The price was reasonable too.

Samantha Rutyna

8 months ago

Rotten Window Repair did an excellent job repairing my basement window. High quality workers, and very fair pricing. Excellent costumer service. I would recommend this company to others and I would use them again myself.

Ramie Hamdan

9 months ago

professional, clean, and timely. did a great job repairing my sash I would highly recommend them.

Ambrie Gordon-Carroll

10 months ago

Great work!

Debbie Grzonka

11 months ago

I love Tony and his crew. They are very honest and pleasant to work with. Awesome job and knowledgeable of windows and fixing them to look new. Saved lots of money and got to the root of the problem. Yes the windows were bad, but insulation of the home is my main problem. Thank you Tony and and crew. Love my new repaired windows. They all open and close. Now.

Mike Baron

1 year ago

I highly recommend this company. Quick response to initial request and they came out and quoted the same day. Work was completed ahead of schedule and very well done and clean. Great job.

Anthony Alsip

1 year ago

These guys are amazing the work that was completed was beyond my expectations. The professionalism and explanation that they offer and have is hands down the best I have had with a window company. Thank you guys so much for your hard work and dedication to the job

How Our Window Repair Process Works

See how we repair damaged windows across Chicagoland — from rotten wood and failed glass to sash, sill and frame restoration.

Multiple Window Savings

Repairing Several Windows?

If several windows in your home need wood repair, glass replacement or other service, ask about special project pricing when multiple units are completed together.

✓ Multiple windows in one project ✓ Repair & glass replacement ✓ Project-based savings

Planning a larger project?

Tell us how many windows need work and we'll include available project savings in your estimate.

Get a Free Estimate Savings depend on project size, service type and scope of work.

ready to work with us?

Hours of Operation:

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Window Repair Across Chicagoland

Window Repair FAQ

Is it worth repairing old wood windows?

Often, yes. If the main window structure is still sound, damaged wood, glass, sashes, sills and hardware can frequently be repaired individually. Repair can preserve the original window and avoid unnecessary full replacement.

Can rotten window frames be repaired?

Localized wood rot can often be removed and rebuilt. Full replacement may be recommended when structural deterioration is extensive or affects multiple major sections of the window.

Can you replace only the glass?

Yes. If the existing frame and sash remain in good condition, cracked, broken or failed insulated glass can often be replaced without replacing the complete window.

How much does window repair cost?

Pricing depends on the type of repair, materials, window size and accessibility. Common projects may range from a few hundred dollars for hardware or sill repairs to higher amounts for sash restoration, specialty glass or extensive wood damage.

How do I know if I should repair or replace my window?

Repair usually makes sense when the damage is limited to specific components. Replacement may be better when the window has severe structural deterioration, major deformation or multiple failed components.

Do you repair foggy double-pane windows?

Yes. Condensation between panes usually indicates a failed insulated glass seal. We can replace the failed insulated glass unit while keeping the existing frame whenever possible.

What warranty do you provide?

Qualifying woodwork repairs are backed by a 10-year warranty, while qualifying insulated glass units may include a 20-year thermal seal warranty.

Window Repair Advice From Our Specialists

How Poor Sealing Accelerates Window Decay

Repair and Save Money with Rotten Window Repair! We only recommend replacement when necessary, offering cost-effective solutions.

Window Repair & Restoration in Chicagoland