Custom Windows

Custom Windows in St. Louis, Made to Order

Let’s build windows that fit your home—not the other way around. From arches and circles to trapezoids and one‑off sizes, if you can picture it, we’ll craft it to match your exact opening and style. We’ll pair it with energy‑efficient, Low‑E insulated glass so your rooms stay comfortable year‑round and your utility use goes down.

We’re a family‑owned St. Louis dealer of 28+ years. Because we source from multiple trusted brands, you get choices that match your design, performance, and budget. And since we’re a dealer, not a high‑pressure outfit, you won’t get a one‑call close or a commissioned pitch—just clear options, fair pricing, and guidance at The Intersection of Price and Quality®.

How to get started is simple

• Share a rough size or photo (or just your goals) for a quick, no‑pressure conversation.
• We’ll schedule a professional measure to confirm fit and details.
• You’ll receive straightforward, written pricing and options.
• Your windows are built to order and installed with care.

Ready to explore your custom window options?

• Request a Free Quote (no obligation, no pressure)
• Call a window specialist at 314‑353‑8350
• Visit our showroom: 7530 Watson Rd, Shrewsbury, MO 63119 (Mon–Fri, 8:00–4:00). Bring photos or rough measurements if you have them.

See Current Specials

Why Choose Viviano for Custom Windows

Custom windows should hit the right look, performance, and price without a sales chase. For 28+ years, our family team has helped St. Louis homeowners find that balance with practical guidance and made‑to‑order solutions. Start with a quick conversation and a free, itemized quote—no pressure, just options.

• Real value: We keep overhead low (less TV, radio, and billboards) so more of your budget goes into the windows, not advertising. That’s The Intersection of Price and Quality®.
• Dealer advantage: We’re not tied to one brand. We compare options and bring the right fit for your home and budget—no upsell.
• Trusted brands, local sourcing: Options from respected manufacturers like Sunrise and Polaris, many made in the USA and available with ENERGY STAR qualified packages.
• Energy‑smart choices: Low‑E coatings, argon or krypton gas fills, and glass packages tuned to Missouri’s climate.
• No‑pressure process: Clear pricing, straightforward answers, and flexible timelines—never one‑call‑close tactics.
• Measured and installed right: Professional measurements and installation by trained, insured crews, with warranties honored.

Tell us what you’re planning and we’ll show you good‑better‑best solutions you can compare side by side. Call 314‑353‑8350, request a free quote, or stop by our Shrewsbury showroom at 7530 Watson Rd (Mon–Fri, 8–4). Prefer a primer first? See full‑frame vs. insert replacement and how pros prevent leaks and water intrusion.

Common Specialty Shapes and What’s Possible

Custom and specialty windows can echo your home’s architecture or create a focal point. Tell us what you’re envisioning—during a free, no‑pressure consultation, we’ll show you shapes, glass, and frame options that fit your style and budget. We regularly design and source made‑to‑order units in these shapes:

• Round and oval
• Arch/eyebrow, gothic and elliptical arches
• Half‑round and quarter‑round
• Triangle and trapezoid
• Octagon, hexagon, and pentagon

Most specialty shapes are fixed (non‑operable) to preserve clean sightlines and weather‑tight performance. Want airflow? We’ll pair your shape with operable units—casements, awnings, or double‑hungs—so you get ventilation without giving up the look. Ask us about popular combos like a half‑round over double‑hungs or specialty transoms over patio doors. Considering privacy or texture? Explore decorative and obscure glass options.

Where these shine

• Foyers and stairwells for natural light with privacy
• Gables and high walls to follow rooflines and add curb appeal
• Bathrooms with decorative or obscure glass
• Over doors, larger windows, or patio doors as transoms
• In multi‑unit compositions to build a dramatic window wall

Size guidance: Minimums and maximums vary by material, glass package, and structural needs. Because we work with multiple manufacturers, final size limits and mullion requirements are confirmed during your professional measurement. We’ll review what’s feasible and suggest the best way to reach your design and energy goals—without pressure or upsells.

Ready to explore what’s possible in your home? Call 314‑353‑8350, request a free quote, or stop by our Shrewsbury showroom on Watson Rd.

Pairing Shapes with Operable Windows

Custom shapes work best when combined with operable windows for airflow and comfort. Since most specialty shapes are fixed for efficiency and durability, we often add venting units where you need air. Not sure what pairs best in your space? Schedule a quick, no‑pressure design visit—we’ll bring ideas, samples, and clear pricing.

• Eyebrow or half‑round over double‑hung or casement for classic symmetry and airflow. Stack a curved top over a same‑width unit. Double‑hung sashes tilt in for easy cleaning. Casements seal tightly and catch side breezes. Factory mulling or a continuous frame keeps sightlines clean and weather‑tight.
• Trapezoids or triangles flanking a picture window with awnings below for modern gables. In vaulted or A‑frame walls, angled shapes add drama while low awning windows provide ventilation, even during a light rain.
• Circles or ovals as accent windows with nearby casements for cross‑ventilation. Round windows bring in soft, even light. Use privacy or textured glass for baths without losing natural light.
• Arched transoms over patio or French doors to elevate entries. We’ll match proportions, color, and trim so the door and transom read as one unit, with proper flashing to manage water.
• Egress guidance: Decorative shapes generally do not meet bedroom egress on their own. If the room requires egress, we’ll ensure at least one operable unit meets local code.

Practical tips

• Keep widths aligned when stacking a half‑round over a rectangular unit for better proportions and cleaner trim.
• Fixed‑over‑operable setups often outperform two operables stacked together.
• Choose screen styles intentionally: half screens on double‑hung windows preserve the view; full screens on casements and awnings maximize ventilation.
• Plan window coverings. Specialty arches and circles may need custom treatments or grilles‑between‑the‑glass for easy cleaning.
• Sun exposure matters. On hot west or south walls, a higher‑performance Low‑E package helps control heat gain and protects floors and furniture from UV.

Ready to talk through your plan? Call 314‑353‑8350 or request a free quote—appointments are available Monday–Friday, 8:00–4:00.

Design and Customization Options

Every custom window is built to match your home’s style as closely as its opening. From material to glass and hardware, we help you dial in the details—without pressure. Prefer a quick, no‑obligation design consult? We’ll meet at your home or our Shrewsbury showroom, show side‑by‑side samples, and price multiple brands to fit your budget.

Materials at a glance

• Vinyl: Strong value and low maintenance. Welded frames and sashes, solid energy performance, and expanded color/woodgrain choices.
• Fiberglass: High strength and stability for larger or complex shapes with slim sightlines. Durable, paintable exteriors that hold dark colors well. Compare materials.
• Wood‑clad: Real wood inside with protective exterior cladding for low upkeep. Ideal for stain‑grade, historic, or premium looks. Are wood‑clad windows worth it?

Wondering which frame material lasts the longest? See Which Window Frame Material Lasts the Longest? Or if easy upkeep is your priority, check out Best Low‑Maintenance Window Materials.

Colors and finishes

• Exteriors: Whites and beiges, blacks and bronzes, and select custom colors (varies by brand/material).
• Interiors: Factory whites/neutrals, laminated woodgrains, or true wood interiors on clad lines.
• Custom capabilities: Expanded palettes by special order; finish/fade warranties vary by brand.

Grilles and divided lites

• Profiles: flat or contour; placement: GBG for easy cleaning, or SDL for a traditional, dimensional look.
• Patterns: colonial, prairie, craftsman, diamond, and custom layouts shaped to follow arches/circles/eyebrows.

Glass choices for style and privacy

• Decorative/obscure textures like rain, frost, satin/etched, and reed.
• Safety glazing: tempered glass available and required by code in certain locations.

Screens, hardware, and low‑maintenance details

• Screens: standard fiberglass, high‑visibility mesh, or pet‑resistant options with color‑matched frames.
• Hardware: color‑coordinated or metallic finishes; low‑profile locks; multi‑point hardware on casements.

After you pick the look, we’ll help you choose the right glass package so your custom window performs well too—most options meet or exceed ENERGY STAR where applicable, and we’ll explain U‑Factor/SHGC trade‑offs for Missouri’s climate.

Ready to explore your options with zero pressure? Call 314‑353‑8350, request a Free Quote, or visit our showroom at 7530 Watson Rd, Shrewsbury (Mon–Fri, 8–4).

Energy Performance and Glass Packages

Custom and specialty shapes can be just as efficient as standard windows—without sacrificing the look you love. We use the same high‑performance glass packages and tune them for St. Louis homes and exposures.

• Low‑E coatings for Missouri’s climate: Spectrally selective Low‑E helps block summer heat and insulates against winter cold while cutting UV.
• Insulating gas and warm‑edge spacers: Argon is the best value for double‑pane units; krypton can boost performance in tight airspaces or triples. Learn the differences: Argon vs. Krypton.
• Double‑ vs. triple‑pane: Triples can lower U‑factors and quiet rooms (noise reduction); availability varies by shape/material due to weight/curves. Double vs. Triple explained.
• ENERGY STAR and NFRC ratings: We guide by whole‑unit ratings so you know how your window will perform.

Ready to see which glass package delivers the best price‑to‑performance for your home? Call 314‑353‑8350 or request a free, no‑pressure quote.

Pricing, Lead Times, and What Affects Cost

Every custom window is made to your opening, so price depends on design and installation details. We’ll build a transparent, itemized quote tailored to your home—no commissioned sales pressure.

• Size of each unit
• Shape complexity (curves, arches, triangles, multi‑segment designs)
• Material (vinyl, fiberglass/composite, or wood‑clad)
• Glass package (Low‑E, double or triple panes, argon/krypton, laminated/sound‑control)
• Tempered/safety glass requirements
• Finish colors and interior options
• Installation method (insert/pocket vs. full‑frame)
• Site conditions (masonry/stucco, out‑of‑square frames, rot repair, access)
• Accessories (grilles, decorative/obscure glass, screens, hardware)

Accurate measurements are key to avoiding delays and extra costs—see Why Accurate Window Measurements Matter Before You Order and what happens if sizes miss the mark: Wrong‑size window orders.

Lead times for custom shapes vary by manufacturer, material, season, and options. We include the current production ETA in writing with your quote and keep you updated through delivery and installation.

Want a ballpark before we visit? Share rough sizes or photos, and we’ll provide a range—then confirm exact pricing after a no‑pressure in‑home measurement.

Financing and seasonal specials are available. Ask us what’s current. Call 314‑353‑8350 or request a free quote. For a broader overview of local pricing, see our St. Louis guide: How much does window replacement cost in St. Louis?

Codes, HOA, and Historic Considerations

Custom windows should look right and pass inspection. In the St. Louis area, a few code and approval items often apply, and we help you handle them before you order.

• Safety glazing: Windows near doors, in bathrooms, and around stairs or landings often require tempered glass.
• Bedroom egress: If a window serves a sleeping room, it must meet egress rules; most specialty shapes are decorative and not egress‑compliant on their own.
• Historic districts and HOAs: We assist with submittals (specs, cut sheets, NFRC labels, color samples, photos) and coordinate minor design tweaks when needed.
• Permits and structural changes: Adding or enlarging openings may trigger permits and structural planning (headers, load paths, flashing).

Helpful resources

• When do building codes require tempered windows?
• How are HOA approvals and permits handled?
• Can You Add a New Window to an Existing Wall?
• When You Need Structural Planning Before Adding or Enlarging Windows

Have a quick code or HOA question? Call 314‑353‑8350 or stop by our Shrewsbury showroom for friendly, no‑pressure guidance.

How Our Measurement-to-Installation Process Works

We keep your custom‑window project simple, transparent, and on schedule. Here’s what to expect from first conversation to final walkthrough.

1. Free consultation
   • Align on goals: the look you want, shapes you’re considering, ventilation needs, and budget.
   • Discuss materials and glass for Missouri’s climate and whether a specialty unit should be fixed or paired with an operable window.
   • Meet in your home or at our showroom (7530 Watson Rd). No pressure—just straight answers.
2. Professional measurements and site review

   

   • Precise measurements; check wall depth, squareness, and structural conditions. Learn why precision matters: Accurate window measurements.
   • Review code needs (tempered glass near doors, tubs, stairs) and exterior conditions (brick, stone, stucco, siding).
   • Determine whether install happens primarily from the interior or exterior. Learn more: Inside or outside?
3. Written proposal with options, no one‑call close
   • Clear, line‑item proposal with side‑by‑side choices across the brands we carry.
   • Take your time and ask questions. Financing options: Financing. Current specials: Specials.
4. Order placement and timeline updates
   • We order your made‑to‑measure windows and share the factory ETA.
   • Curious about timing? Typical turnaround time.
5. Expert installation, weatherproofing, and clean‑up
   • Protect floors/furnishings; complete insert or full‑frame installation as specified. See: Pocket vs. full‑frame (and a deeper dive: full‑frame vs. insert).
   • Insulate and seal the opening; integrate flashing and drip management; finish trims or capping as planned. How we prevent leaks.
   • Professionally trained and insured crews. Details: Workers’ comp and Training/insurance. Concerned about interiors? Trim/drywall protection.
6. Final walkthrough and operation demo
   • Verify fit and finish, test operation and locks, and show cleaning/care.
   • Review warranty information and who to call if you ever need service.

Ready to begin? Request a Free Quote or call 314‑353‑8350.

Materials and Brands We Carry

As a local dealer—not a one‑brand sales company—we source custom windows from multiple manufacturers so you can match budget, style, and performance without a hard sell. You’ll find options from trusted names like Sunrise and Polaris, many made in the USA and available with ENERGY STAR‑qualifying glass packages.

Why material choice matters

• Vinyl: Strong value and low maintenance with excellent thermal performance.
• Fiberglass: Strength and dimensional stability through St. Louis temperature swings; supports larger openings with slimmer profiles.
• Wood‑clad: Real wood warmth on the interior with durable exterior cladding for low upkeep.

Unsure where to start? Compare composite vs. vinyl, fiberglass, and wood, see which frame material lasts longest, or explore low‑maintenance options. You can also browse Our Products anytime.

Not sure which route is right? Visit our Shrewsbury showroom at 7530 Watson Rd (Mon–Fri, 8:00–4:00) to see and feel samples—or call 314‑353‑8350 for side‑by‑side “good / better / best” pricing.

Warranty Coverage: Product and Workmanship

Every custom window we recommend is backed by the manufacturer’s written product warranty plus our own workmanship warranty. During your quote, we’ll show you side‑by‑side coverage by brand and product line so you know exactly what’s protected.

What’s typically covered

• Manufacturing defects in frames, sashes, and operational hardware
• Insulated glass seal failure that causes fogging or moisture between panes
• Factory‑applied finishes where applicable (per brand terms)

What’s typically excluded

• Glass breakage (unless optional coverage applies)
• Misuse, abuse, or improper maintenance
• Use of unapproved cleaners/solvents or abrasives
• Building movement/settlement, weather events, or acts of nature
• Normal wear items like caulk and weatherstripping
• Condensation on room‑side surfaces caused by indoor humidity

Workmanship warranty

Viviano backs installation with a written workmanship warranty covering issues tied to installation practices. If a warranty issue ever comes up, call us first—we’ll diagnose and coordinate next steps with the manufacturer when applicable.

Transferability and documentation

Many manufacturer warranties are transferable to the next homeowner (often one time and within a stated window). We provide all warranty documents at installation and can help with any required registrations.

More detail: Do replacement windows come with a warranty?

Project Gallery: Custom and Specialty Windows

Explore a few recent projects for ideas. We’ve included short captions and suggested alt text to help you compare shapes, materials, and how specialty windows pair with operable units.

• Before/After: Half‑round arch over twin casements

  Alt text: Half-round vinyl arch window above two casement windows in clay color, full-frame replacement, St. Louis

  Caption: Premium vinyl half‑round over two casements. Exterior clay, interior white. Low‑E/argon glass.

• Before/After: Full circle with flanking awnings

  Alt text: Fixed round specialty window centered over two operable awning windows, fiberglass, Shrewsbury MO

  Caption: Fiberglass circle adds daylight. Small awnings below for airflow without losing the focal point.

• Before/After: Triangle gable with double‑hung below

  Alt text: Fixed triangular gable window paired with two double-hung windows, wood-clad, stained interior

  Caption: Wood‑clad triangle fills the vaulted peak. Matched double‑hung units below for easy cleaning and ventilation.

• Before/After: Trapezoid accent next to casement stack

  Alt text: Trapezoid specialty window alongside stacked casement windows, vinyl, textured black exterior

  Caption: Angled trapezoid mirrors the roofline. Stacked casements keep lines clean and operable. Black exterior, white interior.

• Before/After: Eyebrow arch transom over double‑hung

  Alt text: Eyebrow arch transom installed above double-hung window, fiberglass, simulated divided lites

  Caption: Low‑profile eyebrow transom softens the elevation. Fiberglass frame with grille pattern to match the style.

• Before/After: Octagon bath window with awning

  Alt text: Fixed octagonal window with obscured glass above an operable awning, vinyl, privacy bath application

  Caption: Obscure‑glass octagon brings light and privacy. Small awning adds humidity control.

See more installations: Our Work, Our Work Page, and Galleries. See something similar? Snap a photo of your space and call 314‑353‑8350 or request a free quote.

Reviews from St. Louis Homeowners

• Zero pressure, clear answers, and a fair number. They measured our arched opening, showed glass options, and let us sleep on it. Final price beat two larger companies.

  — Megan L., Webster Groves

• Our eyebrow window over new casements looks original to our 1930s brick home. Installers protected our trim and cleaned up thoroughly. Lead time was exactly what they told us.

  — Daniel R., South City (Tower Grove)

• Loved the showroom on Watson Rd—seeing colors and decorative glass in person made decisions easy. No upsell—just value.

  — Tricia S., Kirkwood

• We chose a custom round unit with a matching picture window. The Low‑E/argon package made an instant difference in winter drafts.

  — Brian W., Maplewood

• Straightforward quote, honest timeline, and a quality install. The specialty shape ties in perfectly with our entry.

  — Carla D., Shrewsbury

Badges and standards you’ll see with our products and showroom

• ENERGY STAR: High‑performance glass packages available—ask us to include this on your quote.
• BBB: View our current standing and reviews on BBB.org.
• Made in USA: Many of our window lines are manufactured in the United States (including options from Sunrise and Polaris).

Custom Windows FAQs

Ready to Get Started? Visit Our Showroom or Request a Quote

Have a project in mind? Getting pricing and options is easy and pressure‑free—just choose what works best for you.

• Request a Free Quote: Share window sizes, style ideas, photos, and goals. We’ll reply with clear, itemized options and pricing—no one‑call‑close tactics, ever.
• Call us: 314‑353‑8350 for quick answers, ballpark pricing, and details on current specials or financing.
• Visit our Showroom: 7530 Watson Rd, Shrewsbury, MO 63119. Hours: Monday–Friday, 8:00 a.m.–4:00 p.m.; closed Saturday and Sunday.
• Why Viviano: Family‑owned and operated in St. Louis for 28+ years. We keep overhead low so more of your budget goes into your windows—not advertising. We carry proven, energy‑efficient brands to match your needs and budget.
• Service area: Greater St. Louis metro. Not sure if we come to you? Call to confirm in a minute.

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