Casement Window Replacement in Geneva IL

Double Hung Window Replacement

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DOUBLE HUNG WINDOWS

Professional Double Hung Window Replacement for Chicago Suburb Homeowners

If your windows are drafty, difficult to open, or cause high energy bills, it may be time for double-hung window replacement in the Chicago suburbs. At Window Concepts, we install high-quality, energy-efficient double-hung windows designed to improve your home’s comfort, appearance, and long-term value.

With decades of experience and a reputation for reliable service, we help homeowners throughout the Chicago suburbs find the right window solutions—backed by expert installation and strong warranties.

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Standard Double-Hung Window Sizes

Learn about typical double-hung window dimensions, which generally range from 32 to 35 inches in width and 53 to 71 inches in height

What Is a Double Hung Window?

A double-hung window features two vertically sliding sashes that can both open independently. This allows you to control airflow by opening the top sash, bottom sash, or both at the same time.

Double-hung windows are one of the most popular window styles because they combine classic design with modern performance. Many models include tilt-in sashes for easy cleaning, making them a practical choice for homeowners throughout Chicagoland.

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Why Homeowners CHOOSE Double Hung Windows…

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Benefits of Installing Double-Hung Windows in Chicago

Easy to Clean: Both sashes tilt inward for effortless cleaning from inside your home.

Flexible Ventilation: Open the top, bottom, or both for customizable airflow and comfort.

Classic Look: A traditional design that complements everything from heritage homes to modern builds.

Low Maintenance: Built with high-quality materials that resist warping, cracking, and fading.

Energy Efficient: Tight seals and insulated glass keep your home comfortable year-round while reducing energy costs.

Signs You Need to Replace Your Double-Hung Windows

You may need to replace your windows if you notice:

  • Drafts or uneven indoor temperatures

     

  • Rising heating and cooling costs

     

  • Windows that stick or won’t stay open

     

  • Condensation between glass panes

     

  • Visible damage, rot, or warping

     

  • Outdated or worn appearance

Double-Hung vs. Single-Hung Windows

Not sure which option is right for your home? Here’s a side-by-side comparison:

Feature

Double-Hung Windows

Single-Hung Windows

Operation

Both top and bottom sashes open

Only the bottom sash opens

Ventilation

Better airflow and control

Limited airflow

Cleaning

Easier with tilt-in sashes

More difficult to clean exterior

Flexibility

More versatile for different needs

Basic functionality

Cost

Higher upfront investment

Lower upfront cost

For many homeowners, double-hung windows offer better functionality, easier maintenance, and long-term value, especially in the Chicago suburbs.

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Why Choose Window Concepts?

For double-hung window replacement in the Chicago suburbs, Window Concepts focuses on proper installation, durable products, and long-term performance.

  • Decades of industry experience – Established in 2003, with a long track record of successful window replacement projects

  • Proven installation process – Consistent methods that reduce drafts, improve efficiency, and ensure long-term performance. Check out our window projects!

  • Strong local reputation – Hundreds of completed projects and positive reviews across the Chicago suburbs

  • Transparent pricing – Detailed estimates with no hidden costs, plus financing options for qualified homeowners

  • Clean, professional work sites – We protect your home and complete a full cleanup after installation 
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Double-Hung Window Replacement FAQs

Are double-hung windows a good choice for Chicago-area homes?

Yes. Their insulation options and ventilation flexibility make them ideal for handling seasonal temperature changes.

Yes. Energy-efficient features like Low-E glass and insulated frames help reduce energy loss year-round.

Costs vary depending on your home and window choices. Contact us for a free estimate.

We can replace as many or as few windows as you need.

Yes. We offer fully customized windows designed to fit your home’s style and performance needs.

Most projects can be completed in a single day, depending on the scope.

The cost varies based on several factors, including the number and size of windows, the frame material (vinyl, wood, or fiberglass), glass packages and energy-efficient upgrades, and the complexity of installation.

Key factors include:

  • Number and size of windows
  • Frame material
  • Energy-efficient glass options
  • Installation requirements

The best way is to schedule a free in-home consultation. A professional will assess your needs and provide a detailed, accurate quote.

Modern double-hung windows hold up well in Chicagoland area when they carry a Performance Grade of PG30 or higher (PG40–PG50 for lakefront or high-rise exposure), air leakage of 0.10 cfm/ft² or less, and a U-factor of 0.30 or lower. Most winter failures come from older or poorly installed units with worn seals and slipping sashes.

Winter performance

Chicago suburbs sit in IECC Climate Zone 5A, where the Illinois energy code caps window U-factor at 0.30. Design heating temperatures fall near -4°F, and the January 2019 polar vortex pushed O’Hare to -23°F. At those extremes, three factors decide how a double-hung window performs:

  • Glazing: Dual-pane low-E glass with argon meets code. Triple-pane units reach U-factors of roughly 0.20 or lower, which keeps interior glass warmer and reduces condensation.
  • Condensation Resistance (CR): A CR rating of 55 or higher helps prevent frost and moisture buildup on sashes during sub-zero stretches.
  • Frame stability: Vinyl contracts in deep cold, so fusion-welded corners and reinforced meeting rails matter. Fiberglass expands at nearly the same rate as glass, which keeps seals tighter through freeze-thaw cycles.

Wind load performance

Chicago’s building code sets wind design by ASCE 7, with ultimate design wind speeds of roughly 105–115 mph depending on building risk category. The Performance Grade on a window’s AAMA/WDMA/CSA 101/I.S.2/A440 label shows how much pressure it resists:

  • PG30: Tested to 30 psf design pressure, with water penetration resistance at 4.5 psf. This is adequate for most sheltered single-family homes.
  • PG40–PG50: Recommended for homes facing open lakefront wind, corner lots, or upper floors of multi-unit buildings.

Double-hung windows rely on sliding seals rather than the compression seal of a casement, so they typically allow more air through under sustained wind. Units with interlocking meeting rails, full-perimeter weatherstripping, and dual sash locks on windows wider than about 30 inches close most of that gap.

Older windows

Many Chicago area bungalows and two-flats still have weight-and-pulley double-hungs with no modern balance system. These commonly leak air at the meeting rail, and their upper sashes drift downward. Replacement units with constant-force or block-and-tackle balances eliminate sash slippage.

A premium double-hung window can be airtight enough to prevent noticeable drafts, but a comparable casement usually seals tighter because it uses compression seals instead of sliding seals. The deciding factor is the published air-leakage (AL) rating: a double-hung rated 0.08 cfm/ft² outperforms a casement rated 0.20 cfm/ft².

Why casements have the design advantage

A casement sash is pulled into the frame by its locks, compressing continuous weatherstripping the way a door gasket seals. A double-hung has two sliding sashes, side tracks, and a meeting rail where the sashes overlap, which creates more potential leakage paths. Quality double-hungs manage those joints with interlocking rails, multiple weatherstrips, and tight locks. Among operable styles, casements with multi-point locks are the most air-resistant, and only fixed windows perform better.

Compare ratings, not window styles

Air leakage is measured in cubic feet of air per minute per square foot of window area (cfm/ft²), and lower is better.

  • 0.30 cfm/ft² is the ENERGY STAR and common code maximum. Treat it as a ceiling, not a target.
  • 0.10 cfm/ft² or lower is a strong target for Chicago homes.
  • Check the rating for the exact product line and size you’re buying. Claims like “draft-free” or “energy efficient” are not a substitute for a certified AL number.

Installation often causes the draft

A window can test tight at the factory and still feel drafty in your home. Air frequently enters through the gap between the frame and rough opening, poorly sealed trim, unsealed jamb-adjuster holes, or siding joints rather than through the sash. On a cold, windy day, hold an incense stick or smoke pencil near:

  • The meeting rail and side tracks
  • The inside edge of the frame and trim
  • The lower corners and sill
  • Nearby outlet boxes

Smoke moving at the sash points to weatherstripping, lock adjustment, or the window design itself. Movement at the trim or frame perimeter points to installation or wall air sealing.

Which to choose in the Chicagoland area

  • Double-hung: Best when you want a traditional look for a bungalow or two-flat, top-and-bottom ventilation, and tilt-in cleaning. Specify a low AL rating and get perimeter air sealing written into the installation contract.
  • Casement: Best for north- and west-facing façades exposed to prevailing winter winds, upper stories, lakefront or open-terrain homes, and rooms where comfort matters most.
  • Fixed plus casement: The tightest option combines fixed glass where ventilation isn’t needed with smaller operable casements where it is.

Get a Free Double-Hung Window Replacement Quote

Upgrade your home with double-hung window replacement in the Chicago suburbs from Window Concepts.

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FROM QUOTE TO INSTALLATION — WE MAKE GETTING NEW WINDOWS EFFORTLESS

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Step 01

CONTACT US BELOW OR GIVE US A CALL

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Step 02

GET A QUOTE & RECEIVE CONTRACT

After receiving the quote and contract our installers will come to your home to take precise measurements.

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Step 03

ENJOY YOUR NEW WINDOWS

We will professionaly install your new windows once production is completed.

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