Round windows and specialty-shaped windows transform ordinary spaces into architectural focal points. Whether you’re drawn to the classic elegance of arched windows or the modern simplicity of circle windows, these distinctive window styles can enhance your Mid-Atlantic home’s curb appeal while improving natural light.
At Thompson Creek, we custom-manufacture specialty windows at our Upper Marlboro, Maryland facility to fit your home’s exact specifications. With more than 40 years of experience serving homeowners throughout Maryland, Virginia, and Washington DC, we understand which window styles work best for our region’s unique climate challenges, from humid summers to freezing winters.
What Are Round Windows?
Round windows, also called specialty-shaped windows or architectural windows, feature curved designs that break up the straight lines typical of traditional rectangular windows. These distinctive windows include arched windows, full-circle windows, half-round windows, elliptical windows, and quarter-round variations. Each style offers unique benefits for both aesthetics and functionality.
Unlike standard double-hung windows or casement windows, most round windows are fixed (non-operable), meaning they don’t open for ventilation. This fixed design, though, provides strong energy efficiency since there are no moving parts where air can leak through. Our guide on why window panes are made of glass covers more about the material science behind modern window glass.
Types of Round Windows for Your Home
Arched Windows
Arched windows feature a distinctive curved top that rises above a rectangular base, creating a dramatic focal point. These windows evoke classical architecture and work beautifully in entryways, great rooms, and above patio doors to add height and grandeur.
Best for: Homes with cathedral ceilings, traditional or Mediterranean architecture, or spaces where you want to create a sense of vertical space. Arched windows are particularly popular in Mid-Atlantic homes with colonial or Georgian architectural styles.
Energy efficiency: Thompson Creek’s custom arched windows feature advanced Low-E glass coatings that block UV rays while allowing natural light to enter, protecting your furniture from fading while keeping your home comfortable year-round.
Circle Windows
Circle windows (also called porthole windows or full-circle windows) bring natural light into spaces where traditional rectangular windows won’t fit. These symmetrical windows work exceptionally well in bathrooms, stairway landings, and closets and as accent windows in gables.
Best for: Small spaces requiring privacy and light, contemporary home designs, and creating visual interest on exterior facades.
Design tip: Circle windows pair beautifully with other window styles. Consider placing a circle window above a bank of casement windows or flanking entry doors for balanced symmetry.
Half-Round Windows
Half-round windows (also called half-circle or semicircle windows) are created by cutting a full circle in half horizontally. These elegant windows commonly appear above entry doors, large picture windows, or as transom windows to bring additional light into rooms with high ceilings.
Best for: Traditional homes, above entryways, and complementing other rectangular window combinations. Half-round windows with decorative grilles create a fan-like pattern well suited to colonial and Victorian architecture common throughout the Washington, D.C. metro area.
Custom manufacturing advantage: Because Thompson Creek manufactures windows at our Maryland facility, we can create half-round windows in virtually any size to fit your home’s existing architecture.
Quarter-Round Windows
Quarter-round windows take half-round designs and cut them in half again, creating a distinctive quarter-circle shape. These compact windows fit into tight architectural spaces and create interesting combinations when paired with other window styles.
Best for: Corner installations, dormer windows, and unique architectural details. Quarter-round windows work well for maximizing light in attic conversions or second-story additions while maintaining the home’s architectural integrity.
Elliptical Windows
Elliptical windows resemble half-round windows but feature a wider, more gently curved arch. This elongated design works particularly well above wide patio doors, picture windows, or entryways with sidelights, creating an elegant umbrella effect.
Best for: Homes with wide window openings, above French doors, and contemporary architectural styles.
Weather performance: All Thompson Creek specialty windows are AAMA-tested to withstand winds up to 146 mph, meaningful protection for Mid-Atlantic homeowners who face severe weather, including hurricanes, nor’easters, and strong summer thunderstorms.
Benefits of Round Windows
Enhanced Natural Light: Round windows positioned high on walls or above other windows capture sunlight throughout the day without sacrificing privacy. This clerestory-style placement brightens interior spaces naturally, reducing your reliance on artificial lighting.
Improved Curb Appeal and Home Value: Specialty-shaped windows create distinctive architectural character that sets your home apart, and window replacement projects are widely recognized as one of the stronger home improvements for return on investment, with unique architectural windows often commanding premium appeal from buyers.
Strong Energy Efficiency: Because most round windows are fixed installations without operable components, they provide excellent energy efficiency. Thompson Creek’s custom specialty windows feature multi-chamber vinyl frames that resist heat transfer, advanced Low-E glass coatings, argon gas fills between panes for additional insulation, and installation by our professional teams to help eliminate air leakage.
Architectural Flexibility: Round windows complement virtually any home style, from half-round windows with traditional grilles in colonial and Georgian homes to ornate elliptical windows with decorative glass in Victorian architecture to clean-lined circle windows without grilles in contemporary designs.
Where to Install Round Windows in Your Home
Above Entry Doors: Half-round or elliptical windows above front doors create a welcoming focal point while flooding your foyer with natural light.
Stairway Landings: Circle or half-round windows on stairway landings brighten what’s typically a dark transitional space.
Bathroom Windows: Circle windows offer privacy while introducing natural light, well suited to bathrooms where wall space is limited.
Gable Ends: Round windows in gable ends add character to your home’s exterior profile while bringing light into attic spaces or second-floor rooms.
Great Rooms and Living Spaces: Large arched windows or combinations of round windows with bay windows create dramatic focal points in great rooms, living rooms, and dining areas.
Planning Your Round Window Project
Because the cost of specialty-shaped windows varies widely based on size, style, complexity, and installation requirements, general cost figures aren’t a reliable way to plan your specific project. Thompson Creek offers a free, no-obligation consultation to provide an accurate assessment based on your home’s architecture and the round window styles you’re considering. Because Thompson Creek designs, manufactures, and installs all our windows, you avoid the markup typically charged by companies that outsource these functions, and our 50-Year No-Hassle Warranty provides strong long-term value. If your existing windows are showing wear alongside your interest in adding a specialty window, our guide on 10 clear signs you need a window replacement can help you plan a more comprehensive project.
Round Windows vs. Traditional Window Styles
| Feature | Round/Specialty Windows | Traditional Rectangular Windows |
| Ventilation | Most are fixed (non-operable) | Can be operable or fixed |
| Energy Efficiency | Excellent (no moving parts) | Very good (when quality construction) |
| Natural Light | Strong for high placements | Good for eye-level views |
| Architectural Impact | High, creates focal points | Moderate, traditional appearance |
| Maintenance | Low (fixed windows) | Low to moderate (depending on type) |
| Best Uses | Accent windows, high walls, entryways | Primary room windows, ventilation |
Choosing the Right Round Windows for Your Home
Architectural Style: Match your window choices to your home’s architectural period. Colonial homes pair beautifully with half-round windows featuring traditional grilles, while contemporary homes shine with clean-lined circle windows.
Interior Space Function: High-traffic areas benefit from fixed round windows that won’t interfere with furniture placement. Bedrooms and living spaces typically need operable windows for ventilation, so consider combining specialty windows with casement or double-hung windows.
Light Direction and Privacy: South-facing round windows maximize winter sunlight but may cause summer overheating, so select appropriate Low-E glass coatings. Higher placements provide privacy while still delivering natural light. Our guide on solar heat gain explains this trade-off in more detail.
Climate Considerations: Mid-Atlantic weather demands windows that can handle humidity, temperature extremes, and severe storms. Thompson Creek’s vinyl windows won’t warp, rot, or require painting, and they’re tested to withstand hurricane-force winds up to 146 mph.
Installation Considerations for Specialty Windows
Professional installation is crucial for specialty-shaped windows. Improper installation can lead to air and water infiltration, reduced energy efficiency, structural damage to surrounding walls, voided warranties, and premature window failure.
Thompson Creek’s installation process: precise measurement of existing openings or new installation planning, custom manufacturing to your exact specifications at our Maryland facility, professional installation completed efficiently, typically within one day, quality inspection of every installation, and warranty activation upon completion.
Unlike companies that outsource installation to third-party contractors, Thompson Creek maintains complete accountability from design through warranty service.
Frequently Asked Questions About Round Windows
Can round windows be opened for ventilation?
Most round and specialty-shaped windows are fixed because their curved designs make opening mechanisms impractical. Some arch-top windows include operable bottom sections. For ventilation, combine specialty windows with nearby operable windows like casement or double-hung styles.
Are round windows energy efficient?
Yes. Fixed round windows are often more energy efficient than operable windows because they have no moving parts where air can leak. Thompson Creek’s specialty windows feature advanced Low-E glass, argon gas fills, and multi-chamber vinyl frames engineered for the Mid-Atlantic climate.
Will specialty windows fit my home’s style?
Round windows complement virtually all architectural styles when properly selected. Traditional homes benefit from half-round windows with grilles, while contemporary homes shine with clean-lined circle windows. Thompson Creek’s design specialists help match window styles to your home’s architecture.
How long does it take to install round windows?
Most specialty window installations are completed within one day. The timeline depends on the number of windows, installation location, and whether structural modifications are needed.
Do round windows increase home value?
Yes, in many cases meaningfully. Specialty windows improve curb appeal and natural lighting, both factors that support home value, with unique architectural windows often commanding premium appeal from buyers.
Are round windows harder to clean?
No. Fixed round windows are easier to clean than operable windows since they have no screens or moving parts. For high installations, consider accessibility during installation planning.
Can round windows withstand severe weather?
Thompson Creek’s specialty windows are AAMA-tested to withstand winds up to 146 mph, exceeding requirements for hurricane zones and specifically engineered for Mid-Atlantic weather extremes.
Why Choose Thompson Creek for Custom Round Windows
When you choose Thompson Creek for specialty window replacement, you work with a single company accountable for every step: custom manufacturing, with every window built to your home’s exact specifications at our Maryland facility; a 50-Year No-Hassle Warranty covering both product and installation, serviced by our local team, not third-party contractors; weather-tested durability, AAMA-tested to withstand 146 mph winds; complete accountability, since we design it, build it, install it, and service it; more than 40 years of local experience, family-owned since 1980; and professional installation, with our installers as employees, not subcontractors, ensuring consistent quality and accountability.
Ready to enhance your home with custom round windows? Schedule your free consultation today and discover why Mid-Atlantic homeowners have trusted Thompson Creek for over 40 years. Our custom-manufactured specialty windows come with a 50-Year No-Hassle Warranty and professional installation you can count on.
