If you’re looking at Viwinco windows while planning your replacement window project, you’ve probably noticed they don’t get as much attention as bigger national brands like Simonton, ProVia, or Soft-Lite. But that’s actually part of their appeal. Viwinco is a privately owned, U.S.-based window manufacturer with a focus on consistent quality, fair pricing, and dependable performance.
In this 2025 Viwinco Windows Review, we’ll take a close look at prices, energy efficiency, build quality, warranty coverage, design options, and how Viwinco compares to other well-known window brands.
Whether you’re getting quotes for 10 windows or 40, this guide will help you understand if Viwinco is the right fit — and how to avoid overpaying for your project.
🏆 Quick Verdict
Viwinco Windows are a solid, American-made choice for homeowners who want quality and efficiency without the high-end markup.
Their 600 and 800 Series vinyl windows offer excellent thermal performance and strong warranties. They’re not luxury products, but they deliver consistent value for the price.
Best for: Homeowners who want dependable vinyl windows at a fair price
Not ideal for: Those wanting custom color palettes, luxury finishes, or a national dealer network
Viwinco Windows 2025 Ratings
| Category | Score (out of 100) |
|---|---|
| Quality | 83 |
| Efficiency | 86 |
| Options | 78 |
| Warranty | 88 |
| Price | 91 |
| Overall | 85 (Grade B+) |
Summary: Viwinco sits comfortably in the upper mid-range vinyl window category, right alongside Simonton, Wincore, and Polaris. They won’t dazzle you with luxury design options, but their craftsmanship, warranty, and price-to-value ratio make them a standout in their class.
About Viwinco
Founded in 1982 and based in Morgantown, Pennsylvania, Viwinco Windows & Doors remains a family-owned manufacturer — which is increasingly rare in this industry.
They design and manufacture vinyl replacement and new-construction windows and patio doors at their 100% U.S.-based facility, including their own insulated glass units. That vertical integration gives Viwinco control over quality and supply chain — two things many larger brands outsource.
Their lineup includes:
- Replacement windows (600 and 800 Series)
- New-construction models
- Sliding and hinged patio doors
- Specialty and impact-rated windows (OceanView line)
If you’re comparing Viwinco to similar brands, check out our detailed reviews of
👉 Simonton Windows,
👉 ProVia Windows,
👉 Polaris Windows,
👉 Soft-Lite Windows, and
👉 Wincore Windows.
Build Quality: 83/100
Viwinco doesn’t try to be fancy — they focus on well-engineered vinyl construction that holds up for decades.
Each window includes:
- Fusion-welded frames and sashes for rigidity
- Multi-chamber profiles for strength and insulation
- Dual weatherstripping and interlocking sashes to block drafts
- Low-maintenance vinyl that resists fading and warping
Their manufacturing consistency has improved significantly in recent years, and many installers we’ve spoken to report fewer adjustment issues or air leaks compared to big-box store brands like American Craftsman or Jeld-Wen.
If you want a deeper dive into how air infiltration affects comfort, check our guide to
👉 window efficiency ratings explained.
Energy Efficiency: 86/100
Energy performance is one of Viwinco’s biggest strengths. Their windows feature Low-E coatings, argon gas fills, and warm-edge spacers for solid U-factor and SHGC performance.
| Series | U-Factor | SHGC | ENERGY STAR 7.0 Compliant |
|---|---|---|---|
| 600 Series | 0.28 | 0.27 | Yes |
| 800 Series | 0.27 | 0.25 | Yes |
| OceanView Impact | 0.29 | 0.23 | Yes |
For homeowners pursuing the Federal Energy Efficient Home Improvement Credit (IRS 25C), Viwinco’s ENERGY STAR–qualified configurations will meet the eligibility requirements. You can verify by checking each model’s NFRC label, or by visiting the ENERGY STAR window criteria page.
Options & Design: 78/100
Viwinco offers practical configurations, not showroom extravagance. You’ll find:
- Frame colors: white, tan, and clay
- Grids/muntins: colonial, prairie, and perimeter styles
- Glass options: clear, tinted, obscure, and tempered
- Styles: double-hung, slider, casement, awning, picture, bay, bow, and patio doors
Customization isn’t Viwinco’s selling point — durability and efficiency are. But most homeowners find the available designs perfectly adequate for modern remodels and replacements.
Warranty: 88/100
Viwinco’s Limited Lifetime Warranty covers:
- Vinyl frame and sash materials
- Insulated glass seal failure
- Hardware components
It’s transferable once, which adds resale value for homeowners planning to move within 10–15 years.
For a breakdown of what’s covered (and what’s not), check out our explainer on
👉 replacement window warranties.
Price: 91/100
One of the best things about Viwinco is their pricing consistency. You’ll rarely find sales tricks or “today-only” discounts — just straightforward, fair quotes.
Here’s what you can expect for installed costs in 2025:
| Region | Double-Hung | Slider | Casement | Bay/Bow | Patio Door |
|---|---|---|---|---|---|
| Northeast | $725–$1,050 | $700–$975 | $800–$1,200 | $3,500–$6,000 | $2,000–$3,800 |
| Midwest | $875–$1,300 | $650–$925 | $775–$1,150 | $3,200–$5,500 | $1,900–$3,500 |
| South | $750–$950 | $725–$900 | $750–$1,075 | $3,000–$5,200 | $1,800–$3,400 |
| West | $800–$1,125 | $775–$950 | $775–$1,100 | $3,400–$5,800 | $1,900–$3,700 |
Tip: Always insist on itemized quotes. If you get a quote that says “10 windows – $11,000” with no breakdown, you can’t compare value accurately. For more, see
👉 window sales tactics to avoid.
Viwinco vs Competitors
| Brand | Strengths | Weaknesses | Ideal Buyer |
|---|---|---|---|
| Viwinco | Affordable, ENERGY STAR 7.0 certified, U.S.-made | Limited customization | Homeowners wanting durable mid-range vinyl |
| Simonton | Nationwide availability, solid warranty | Varies by dealer | Shoppers wanting a big-name option |
| ProVia | Premium build, best hardware | Higher prices | Homeowners seeking high-end vinyl |
| Polaris | Excellent thermal performance | Harder to source | Efficiency-first buyers |
| Soft-Lite | Extremely tight air infiltration | Expensive | Buyers prioritizing performance |
| Wincore | Balanced value | Limited color options | Cost-conscious buyers |
| Alside | Widely distributed | Quality depends on dealer | Budget-oriented shoppers |
Real Homeowner Feedback Snapshot
| Reviewer | Location | Feedback |
|---|---|---|
| Michelle L. | Pennsylvania | “Installer recommended Viwinco 800 Series — great in winter, solid warranty.” |
| Aaron P. | Ohio | “Happy so far, no drafts, smooth sash operation.” |
| Brenda K. | North Carolina | “Less expensive than Simonton, looks great.” |
| Tom H. | Oregon | “Had to wait six weeks for custom clay color, but love the finish.” |
These quotes reflect what we hear consistently: good quality, fair price, and reliable local service.
FAQs: Viwinco Windows 2025
Are Viwinco windows good quality?
Yes. Viwinco’s windows are sturdy, energy-efficient, and well-built. They’re not luxury products, but they’re reliable and backed by a strong warranty.
Where are Viwinco windows made?
All Viwinco products are manufactured in Morgantown, Pennsylvania.
Do Viwinco windows qualify for energy tax credits?
Yes, most Viwinco models that meet ENERGY STAR 7.0 qualify for the IRS 25C Energy Efficient Home Improvement Credit.
How much do Viwinco windows cost installed?
Depending on your region and installer, you’ll typically pay $575–$1,100 per window installed.
What’s covered under the Viwinco warranty?
The Limited Lifetime Warranty covers vinyl, glass seal failure, and hardware. Labor coverage varies by installer.
Who sells Viwinco windows?
They’re available through independent dealers and contractors, not big-box stores.
How do Viwinco windows compare to ProVia or Simonton?
They offer similar efficiency to Simonton at a slightly lower cost, and while ProVia’s fit and finish are more premium, Viwinco delivers better value per dollar.
The Window Dog’s Expert Take 🐾
“Viwinco might not have a national showroom presence, but their windows hold up really well in the real world. They’re a reliable, American-made vinyl option with good thermal performance and a fair price tag. The risks of working with a smaller manufacturer like this are real. Lots of great products have been made by companies that later went out of business. It’s a risk people don’t always appreciate. In addition, the key to a good result is always your installer — great windows can’t fix poor installation.”
What about the tilt-n-lock hardware?
This is a feature that I’ve never been a huge fan of. It integrates the lock with the tilt latches so you can tilt in the windows by turning the lock mechanism. It can sound fancy and salespeople love it. When you see someone using it in their house the drawbacks become clear. it’s just not that easy to use.
I’ve been in customers houses while they’re trying to show me a problem with their windows and they just can’t get it to tilt in. The problem isn’t that the hardware failed it’s just that it’s not as easy to use if you don’t use if very often.
In my opinion this option is solving a problem that doesn’t exist. Tilt latches are easy, why reinvent the wheel?
Want a Great Window Company?
Before you sign with anyone, check our updated list of
👉 the best replacement window companies across the country.
These are honest, professional installers who use transparent pricing and solid communication — exactly the kind of company that makes a Viwinco purchase go smoothly.
Final Thoughts
If you’re shopping for vinyl replacement windows made in the USA, Viwinco belongs on your bid list. They don’t promise luxury; they deliver value, durability, and efficiency — and that’s what most homeowners actually want.
Compare quotes side-by-side with Simonton, Wincore, or ProVia, read the fine print on labor coverage, and pick the company you trust most. You’ll save money, avoid the high-pressure sales tactics, and end up with a project you’re proud of.
Transparency & Accuracy Matter
At The Window Dog, we strive for 100% accuracy in every review. If you believe anything in this post is outdated or inaccurate, please contact us with the specific facts and we’ll review and update it after verification.
Real homeowner feedback helps us keep this site fair, honest, and useful for everyone.
The warranty for Viwinco insulated glass is only 1 year.
Regards,
Matthew Eggleston
Thanks Matthew, that’s a pretty short warranty. I’m sure anyone considering buying Viwinco windows would be interested to know that.
This is inaccurate. Insulated glass warranty is lifetime. Labor is only 1 year.
What are the levels of Titanium Dioxide blended into the vinyl in the Viwinco windows?
Hi Carol, that’s an interesting one. I’d love to hear what a salesperson told you about that. Did they tell you they had a way to measure that or that the products they were selling were better than another in that regard?
Hi I’m getting ready to replace two windows and this is the manufacturer i was quoted with. Are the windows worth the value?
Hi Mark, do you have any details on what was quoted? And, the price that was quoted?
Yes $2280.00 for two windows. One fixed approx 35w by 46.5h
The other about twice the size but it slides open. Bronze color outside, white inside. New construction install with outside capping, reset exterior stops, caulking and sealing inside and out.
At todays prices that doesn’t sound unreasonable to me. The bronze exterior adds a decent amount to any order and in general labor costs, on a per window basis, will be higher for a small project like that.
The installed I am looking at said he just switched from Harvey to Viwinco. He said the last few Harvey orders he received were not the best quality. I wanted Provia but reading your reviews it looks like you would put Provia over Viwinco. My question to you is what year was your review of Viwinco done? Curious how recent it was and then the same for Provia.