Doors & Windows
Upgrading doors and windows is one of the most impactful improvements a Chicago homeowner can make for energy efficiency, curb appeal, and security. Partner suppliers in our network offer interior and exterior doors in wood, fiberglass, and steel, along with energy-efficient replacement windows, including prehung and slab doors, sliding and French patio doors, and window styles from double-hung to casement. Ask suppliers for products suited to Chicago's climate, and confirm current energy code requirements. Many suppliers can help you measure, select, and order the right products for your openings.
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Exterior Entry Doors
Your entry door is the focal point of your home's facade and a critical component of its weather barrier. Partner suppliers in our network offer steel, fiberglass, and wood exterior doors that combine security, energy efficiency, and curb appeal. When you request a quote, ask for doors suited to Chicago's climate and confirm they meet current energy code requirements.
Steel entry doors are a popular, budget-friendly option for Chicago homes. They provide excellent security with a heavy 20-gauge or 24-gauge steel skin over an insulated polyurethane foam core, delivering R-values as high as R-8. Magnetic weatherstripping creates a tight seal that blocks cold air infiltration on the coldest winter nights, and the adjustable threshold compensates for settling and seasonal movement. Steel doors are available in smooth, textured, and wood-grain embossed surfaces that accept paint beautifully.
Fiberglass entry doors offer the realistic look of natural wood with none of wood's vulnerabilities to moisture, warping, and rot. Fiberglass is dimensionally stable across Chicago's wide temperature range, which means the door maintains its fit and weatherseal integrity year-round. Premium fiberglass doors with decorative glass inserts create a striking entrance while still providing solid energy performance and security. Both prehung and slab configurations are commonly available for new construction and replacement applications.
Interior Doors
Interior doors define the character of a home's living spaces. Suppliers in our network offer a range of interior door styles from the classic six-panel colonial to clean, modern flat-panel and shaker designs. Hollow-core doors are the most affordable option and are standard for bedrooms, closets, and hallways. Solid-core doors provide superior sound dampening between rooms and a heavier, more substantial feel that homeowners notice immediately.
Interior doors are typically available as prehung units with a primed jamb and hinges already installed for fast, accurate hanging, or as slab-only doors for installation into existing jambs. Standard widths of 24, 28, 30, 32, and 36 inches are common, and many suppliers can special-order widths and heights for the non-standard openings common in older Chicago homes.
For Chicago's classic bungalows, greystones, and Victorians, describe the original doors in your quote request and ask partner suppliers about historically appropriate panel configurations. Solid core doors are recommended for bathrooms, bedrooms facing busy streets, and home offices where sound privacy is important. Partner suppliers can often help you choose the right door style and core type for each room in your home.
Patio Doors & Storm Doors
Sliding patio doors and French patio doors connect indoor living spaces to decks, patios, and backyards. Both styles are widely available with dual-pane Low-E glass and multi-point locking hardware that provides both energy performance and security. Sliding doors are ideal for rooms with limited floor space because the panels glide along the track rather than swinging inward. French doors open wide to create a dramatic connection between inside and outside and add an elegant, traditional feel to any room.
Storm doors are a practical addition to any exterior door in Chicago. A quality storm door adds an extra air barrier that reduces heat loss during winter, protects the primary door from direct weather exposure, and provides ventilation through an interchangeable screen panel in warmer months. Full-view storm doors with retractable screens maximize light and visibility while still offering weather protection when the glass panel is in place.
Replacement & New Construction Windows
Windows have a massive impact on a home's energy efficiency, comfort, and appearance. Older single-pane windows, which are still common in many Chicago neighborhoods, can account for a significant share of a home's heat loss. Replacing them with modern double-pane Low-E windows can reduce heat loss, block drafts, and quiet outside noise.
Vinyl double-hung windows are one of the most popular replacement styles in Chicago. Double-hung windows feature two operable sashes that tilt inward for easy cleaning from inside the home, which is especially appreciated in multi-story Chicago homes. Casement windows crank open outward to provide maximum ventilation and an unobstructed view. Awning windows hinge at the top and are ideal for placement above kitchen counters and in bathrooms where ventilation during light rain is desired.
Replacement windows for Chicago typically feature dual-pane insulated glass with Low-E coating and argon gas fill. For homeowners who want the highest energy performance, many suppliers can special-order triple-pane windows, some with krypton gas fill, that reach even lower U-factors. Custom sizes are often available to fit the non-standard openings frequently found in older Chicago construction; ask about lead times when you request a quote.
Energy Efficiency for Chicago Winters
Chicago's winters push doors and windows to their limits. With temperatures regularly dropping below zero and harsh wind chills, even small gaps in the weather seal can result in noticeable drafts and increased heating costs. That is why it pays to choose products engineered for cold-climate performance rather than general-purpose products that may not hold up to local conditions.
Key energy performance metrics to look for when selecting doors and windows for a Chicago home include U-factor (the lower the number, the better the insulation), Solar Heat Gain Coefficient (SHGC, which indicates how much solar heat the glass transmits), and air leakage rating (lower means fewer drafts). ENERGY STAR certification for the Northern climate zone indicates the product meets a defined performance standard, and some products exceed that threshold; compare the NFRC labels on the units you are quoted.
Proper installation is just as important as product quality. The best window in the world will underperform if it is installed without proper shimming, insulation around the frame, and integration with the wall's weather-resistant barrier. Many partner suppliers can refer you to installers in the Chicago area and offer guidance on best practices for door and window installation in existing openings.
Door & Window Products Available Through Our Network
Steel Entry Door 36" Prehung
Insulated steel entry door with magnetic weatherstrip and adjustable threshold for a tight, energy-efficient seal.
Fiberglass Entry Door with Glass
Fiberglass door with decorative glass insert, offering the look of wood with superior weather resistance.
6-Panel Interior Door Prehung
Classic six-panel hollow-core interior door, prehung in a primed jamb for quick and easy installation.
Solid Core Interior Door Slab
Heavy-duty solid core interior door slab providing sound dampening and a substantial feel.
Sliding Patio Door 72x80
Dual-pane sliding patio door with Low-E glass for thermal performance.
French Patio Door 60x80
Hinged French patio door set with divided light grilles and multi-point locking system.
Double-Hung Replacement Window
Vinyl double-hung replacement window with tilt-in sashes for easy cleaning and double Low-E glass.
Casement Window 24x48
Crank-out casement window providing maximum ventilation and an unobstructed view with Low-E glass.
Entry Door Hardware Set - Satin Nickel
Handleset with deadbolt in satin nickel finish, keyed alike for convenient single-key entry.
Door Weatherstrip Kit
Complete weatherstripping replacement kit for exterior doors including head, jamb, and door sweep components.
What You Can Request a Quote On
- ✓Steel, fiberglass, and wood exterior entry doors
- ✓Interior panel doors in multiple styles and wood species
- ✓Sliding glass and French patio door systems
- ✓Double-hung, casement, awning, and picture windows
- ✓Low-E glass options for superior energy performance
- ✓Prehung and slab door configurations
- ✓Custom sizing on many door and window lines (ask the supplier)
- ✓Door hardware sets, locksets, and deadbolts
- ✓Weatherstripping, thresholds, and door sweeps
- ✓Energy-efficient options for Chicago's climate (confirm code requirements for your project)
Energy Efficiency Ratings Explained
When shopping for doors and windows, you will encounter several energy performance metrics on the NFRC (National Fenestration Rating Council) label. Understanding what these numbers mean helps you select products that will keep your home comfortable and your energy bills manageable through harsh winters and hot summers.
| Rating | What It Measures | Range | Look For |
|---|---|---|---|
| U-Factor | Rate of heat transfer (insulation value) | 0.15 – 1.20 | Lower is better |
| SHGC | Solar Heat Gain Coefficient — solar heat transmitted | 0 – 1 | Lower = less summer heat gain; balance with passive solar |
| VT | Visible Transmittance — amount of visible light | 0 – 1 | Higher = more natural light |
| Air Leakage | Air infiltration rate through the unit | 0.1 – 0.3+ cfm/sf | Lower = fewer drafts |
ENERGY STAR: Windows earning the ENERGY STAR label for the Northern climate zone meet defined U-factor and SHGC limits. The criteria are updated periodically, so check energystar.gov for the current values. Homeowners investing in a full window replacement may also benefit from targeting even lower U-factors with triple-pane glass for maximum comfort on Chicago's coldest days, when temperatures can remain below zero for extended periods.
Door Material Comparison: Steel vs. Fiberglass vs. Wood
Choosing the right entry door material affects energy efficiency, security, maintenance, and the overall look of your home's entrance. All three materials can perform well in Chicago when properly selected and installed, but each has distinct strengths and tradeoffs. Here is a detailed comparison to help you decide.
| Feature | Steel | Fiberglass | Wood |
|---|---|---|---|
| R-Value (insulated core) | R-6 to R-8 | R-5 to R-7 | R-2 to R-3 (solid wood) |
| Security | Excellent — 20-24 gauge steel resists forced entry | Very Good — impact-resistant composite shell | Good — solid wood is strong but can be pried |
| Maintenance | Repaint every 5–10 years; dents cannot be easily repaired | Repaint or restain every 5–10 years; very durable surface | Refinish every 2–4 years; sand and reseal exposed surfaces |
| Relative Cost | Usually the most affordable | Mid-range to premium | Often the most expensive |
| Dimensional Stability | Good in cold but can transmit cold through frame | Excellent — does not expand/contract with temperature | Fair — swells in humidity, shrinks in dry cold; can stick or gap |
| Appearance | Smooth or wood-grain embossed; paintable | Realistic wood grain; stainable or paintable | Authentic warmth and character of real wood |
Best for Chicago: Fiberglass entry doors offer the best all-around performance for Chicago's climate because they combine good insulation, excellent dimensional stability through the city's wide seasonal temperature swings, and minimal maintenance. Steel doors are the best value for budget-conscious homeowners who prioritize security and energy efficiency. Wood doors are best reserved for protected entries (with a storm door) or historic restorations where authentic materials are important.
Signs It's Time to Replace Your Windows
Windows do not last forever, and in Chicago's demanding climate they may degrade faster than in milder regions. Knowing when to repair versus replace saves money in the long run and prevents costly damage from water infiltration and energy loss. Here are the key indicators that replacement is warranted.
Condensation Between Panes
Fog or moisture trapped between the glass panes means the insulated glass unit (IGU) seal has failed. The argon gas has escaped, and the window has lost a significant portion of its insulating value. IGU replacement is possible on some windows, but full unit replacement is often more cost-effective.
Drafts Near Windows
If you feel cold air around closed, locked windows, the weatherstripping has deteriorated, the sash no longer seats properly, or the frame has warped. While weatherstripping can be replaced, persistent drafts after re-weatherstripping indicate the window unit itself is worn out and should be replaced.
Difficulty Operating
Windows that are hard to open, close, or lock may have swollen or warped frames, failed balance mechanisms, or frame rot. In older Chicago homes, painted-shut windows and broken sash cords are common. If the frames are structurally compromised, replacement is the better long-term investment.
Visible Wood Decay
Soft, spongy, or discolored wood on the sill, sash, or frame indicates rot has taken hold. Minor surface rot can sometimes be repaired with epoxy consolidants, but if the decay has reached the structural parts of the frame, replacement is necessary. Chicago's wet springs and freeze-thaw cycles accelerate wood decay in unprotected window frames.
High Energy Bills
Old single-pane windows lose far more heat than modern double-pane Low-E windows. If your heating bills are consistently higher than neighbors with similar-sized homes, your windows may be a major culprit. Upgrading to modern windows can noticeably reduce heating costs, though actual savings depend on the home and the rest of the envelope.
Outside Noise
If you hear every passing car, airplane, or conversation through your windows, they are not providing adequate sound insulation. Modern double-pane and triple-pane windows with laminated glass options can substantially reduce outdoor noise, a significant quality-of-life improvement for homes on busy Chicago streets.
The Chicago Window: History & Architecture
Few cities have a window style named after them, but Chicago does. If you own an older building in or near the Loop, you may already have a version of this classic configuration.
The Chicago Window emerged in the late 1800s from the Chicago School of architecture and became a defining feature of the city's commercial and residential buildings. It consists of a large fixed center pane flanked by two narrow operable sashes (typically double-hung). This configuration maximized daylight penetration into deep floor plates while providing ventilation through the smaller side panels. The design was a direct response to the narrow urban lots and deep building footprints common in Chicago's rapidly growing downtown.
You can still see Chicago Windows throughout the Loop, along Michigan Avenue, and on many residential buildings from the early 1900s. The design principle — maximizing light while maintaining ventilation — remains relevant today. Modern homeowners choosing replacement windows for these classic openings can replicate the three-part configuration with energy-efficient double-pane units that honor the original architectural intent while improving thermal performance.
Modern Connection: If your home features the classic Chicago Window configuration, describe it in your quote request and ask partner suppliers about replacement windows that match the original proportions — a large fixed center unit with operable flanking sashes — using modern Low-E glass and insulated frames. This preserves the architectural character while improving energy performance.
Frequently Asked Questions About Doors & Windows
Upgrade Your Doors & Windows
Tell us about your openings and project, and we'll pass your request to partner suppliers in the Chicago area who can quote doors and windows suited to your home.