Few upgrades make as dramatic an impact as a new bay or bow window. These elegant, outward-projecting windows flood your home with light, create beautiful architectural detail, and even expand your living space.
At Boston Doors & Windows, we design and install custom bay and bow windows that combine timeless style with exceptional performance — crafted and installed by local experts who care about every detail.
What Are Bay and Bow Windows?
Bay and bow windows both extend outward from your home’s exterior, creating extra interior space and panoramic views — but they differ in shape and style.
Bay Windows feature three panels — a large center picture window flanked by two operable windows set at an angle. This creates a crisp, architectural look and adds depth to your home’s façade.
Bow Windows use four or more panels in a graceful, curved configuration. The result is a softer, more rounded appearance and a wider, sweeping view.
At a glance:
- Bay Windows: 3 sections, angular design, more projection
- Bow Windows: 4+ sections, curved shape, gentle contour
Both: Brighten interiors, add space, enhance curb appeal
Benefits of Bay & Bow Windows
Bay and bow windows are not only stunning — they add comfort, value, and personality to your space.
Why Homeowners Love Them:
Capture natural light from multiple angles.
Extend your room outward — perfect for a reading nook, breakfast area, or window seat.
Elegant exterior projection enhances your home’s architecture.
Modern insulated glass and tight seals maintain comfort through Boston’s seasons.
Enjoy expansive sightlines and a stronger connection to the outdoors.
Choose angles, sizes, and finishes to match your home perfectly.
Key Features of Our Bay & Bow Windows
At Boston Doors & Windows, we install windows built for durability, performance, and efficiency — all tailored to your home’s specifications.
Performance Highlights:
- ENERGY STAR® Certified Glass Packages: Low-E coatings and argon gas insulation for superior comfort and efficiency.
- Reinforced Frame Construction: Structural integrity that supports the extended window projection safely and securely.
- Warm-Edge Spacer System: Keeps glass-edge temperatures stable and reduces condensation.
- Multi-Chambered Vinyl Frames: Improve insulation and sound reduction.
- Custom Roof & Seat Options: Choose insulated seat boards, decorative roofs, and interior trim finishes.
- Operable Side Windows: Casement or double-hung flankers for fresh air and ventilation.
- Low-Maintenance Materials: Vinyl or fiberglass frames resist peeling, warping, and cracking.
Energy Efficiency That Performs
Our bay and bow windows are engineered to handle Boston’s changing weather with ease — from icy winters to humid summers.
Energy Performance Features:
- Dual or triple-pane insulated glass for maximum thermal control
- Low-E coatings to block heat and harmful UV rays
- Argon or krypton gas fills for superior insulation
- Airtight compression seals to prevent drafts
Meets or exceeds ENERGY STAR® standards
Materials & Customization Options
Your home is unique, and your windows should be too. We offer a variety of materials, finishes, and options to make your bay or bow window perfectly match your style.
Frame Materials
- Vinyl: Affordable, durable, and energy-efficient.
- Fiberglass: Premium strength and insulation with minimal expansion.
- Wood-Clad: Warm, natural interior appearance with a protective exterior shell.
Design & Aesthetic Options
- Custom angles and projection depths
- Hip, concave, or flat roof styles
- Interior finishes: paint, stain, or simulated woodgrain
- Decorative grilles and trim profiles
- Hardware finishes: brushed nickel, bronze, or matte black
- Optional insulated seat boards for extra comfort
- Lighting upgrades for cozy, built-in window seating areas
Our Simple, Stress-Free Process
We’ve simplified the process to make your home improvement experience smooth and stress-free.
Tell us about your window project — we’ll answer your questions and schedule your on-site consultation.
Joe, our owner and lead installer, will visit your home, take precise measurements, and help design the perfect configuration for your space.
You’ll receive a clear, fair estimate with transparent pricing and no sales pressure.
Why Choose Boston Doors & Windows
At Boston Doors & Windows, every project is personal. You won’t deal with call centers or subcontractors — just Joe and his dedicated local team.
Why Homeowners Trust Us:
- Locally owned & operated
- Expert, hands-on installation — no subcontractors
- Licensed, insured, and experienced
- Honest pricing — no hidden fees
- Dozens of 5-star Google reviews from happy Boston homeowners
Frequently Asked Questions
Bay windows have three panels set at sharp angles, while bow windows have four or more panels arranged in a gentle curve.
Yes! They project outward, creating additional floor or seating space.
Absolutely. Our insulated, airtight designs meet or exceed ENERGY STAR® efficiency standards.
Yes — all bay and bow windows are custom-built for your home’s architecture and design goals.
Yes. Our experienced installers manage all structural modifications and insulation to ensure safety and performance.
Hear It From Our Customers
When it comes to choosing a doors and windows installer, nothing speaks louder than the experiences of satisfied customers in the Boston area. Our countless positive reviews and testimonials are a testament to our commitment to quality workmanship, reliable service, and customer satisfaction.
