Mr. Glass vs PGT vs ESW Impact Windows — 2026 Comparison

When homeowners in South Florida start researching impact windows, three names come up consistently: PGT, ESW (ES Windows), and Mr. Glass. All three are legitimate, Florida-approved manufacturers with products installed in thousands of homes across Miami-Dade, Broward, and Palm Beach counties. But they are not the same, and the differences matter depending on your home, your budget, and what you prioritize.

This guide breaks down exactly how PGT, ESW, and Mr. Glass compare across every category that matters — so you can make an informed decision instead of just taking a contractor's word for it.

About Each Brand

PGT Windows

PGT (PGT Innovations) was founded in 1959 in Venice, Florida and is widely considered the original pioneer of impact-resistant windows in the state. For decades, PGT has been the most recognized impact window brand in Florida and is deeply integrated into the local contractor and dealer network.

PGT's flagship product line for residential use is WinGuard, which includes single hung, horizontal roller, casement, and sliding glass door configurations. They also offer EnergyVue and PremierVue lines at higher price points with enhanced energy performance.

PGT is a publicly traded company (NYSE: PGTI) with manufacturing in Florida and a large distribution network across the state.

ESW — ES Windows (Tecnoglass)

ESW is manufactured by Tecnoglass, a Colombian company listed on NASDAQ (TGLS) that operates one of the largest glass manufacturing facilities in the Americas — over 3.6 million square feet of production capacity. ES Windows entered the Florida market aggressively in the mid-2010s and quickly gained market share by offering more standard features at lower prices than domestic competitors.

ESW's minimum design pressure of +/-80 PSF exceeds the baseline requirements for most Florida residential applications and is approximately 10 percent stronger than many competing brands at the same price point. The brand includes stainless steel hardware and Low-E glass as standard, features that other manufacturers charge extra for.

Mr. Glass

Mr. Glass is a Miami-based manufacturer that produces impact windows and doors for residential and commercial applications across South Florida. Their MG product line covers single hung windows, horizontal rollers, French doors, and sliding glass doors.

Mr. Glass is a regional manufacturer rather than a national or international brand. They are positioned as a value-oriented option for homeowners who want Florida-approved impact products at competitive prices. All Mr. Glass products carry the required Miami-Dade NOA and Florida Product Approval certifications.

How They Compare: Category by Category

Hurricane Protection and Design Pressure

All three brands meet Florida Building Code requirements and are approved for installation in High-Velocity Hurricane Zones (HVHZ), including Miami-Dade and Broward counties. For standard residential applications, any of the three will provide legally compliant hurricane protection.

Where they differ is in baseline performance. ESW's standard products are rated at +/-80 PSF design pressure. PGT and Mr. Glass standard products typically start at +/-50 PSF, which is the code minimum for many applications, with higher-rated configurations available at additional cost.

For most South Florida homes, a +/-50 PSF design pressure meets code requirements. However, homes in higher-exposure locations, on upper floors, or in coastal areas may benefit from ESW's higher standard ratings.

Glass Quality and Options

All three brands use laminated impact glass with a PVB or SGP interlayer. The glass holds together when broken rather than shattering, which is the defining characteristic of impact-rated glazing.

ESW has earned a strong reputation for optical clarity on their laminated units and offers a broader range of glass configurations including tinted, Low-E, and combination tint-with-Low-E packages, all included as standard on most configurations. PGT and Mr. Glass offer these upgrades as add-ons at additional cost.

For homes near the ocean where UV protection and heat reduction are priorities, ESW's standard Low-E inclusion is a meaningful advantage.

Frame Materials

PGT offers both aluminum and vinyl frames. Their vinyl WinGuard line comes with a limited lifetime warranty, which is one of PGT's most competitive advantages for homeowners who prioritize longevity guarantees.

ESW and Mr. Glass primarily use aluminum frames. Aluminum provides higher design pressures and is the standard for high-rise and coastal construction in Florida. Vinyl is generally more energy-efficient in terms of thermal conductivity, but aluminum is better suited for large openings and high-wind-zone applications.

Pricing

Based on contractor pricing in South Florida in 2026:

• Mr. Glass is typically the most affordable option for standard configurations. Suitable for budget-conscious projects where code compliance is the primary goal.
• ESW offers competitive pricing with more features included as standard. The value-per-dollar ratio is strong because hardware, Low-E glass, and coatings that cost extra from other brands come included.
• PGT is generally the most expensive of the three for equivalent configurations. The premium reflects brand recognition, the domestic manufacturing network, and certain premium series options.

Prices vary significantly by window size, style, and installation complexity. Always compare quotes based on identical specifications.

Lead Times and Availability

All three brands experience variable lead times depending on demand and season. In general:

• Mr. Glass: 4 to 6 weeks from order
• ESW: 4 to 8 weeks from order
• PGT: 6 to 10 weeks from order, longer during peak season

This is for new factory orders. If you find any of these brands in stock through Windows Stock Market, you can skip the wait entirely and have windows available for pickup same-day or next-day.

Warranties

• PGT: Limited lifetime warranty on vinyl frames. Glass and hardware warranties vary by product line.
• ESW: 10 to 25 year warranty depending on the product line. Kynar and Dynar coatings extend the frame finish warranty, particularly important for homes within 3 miles of saltwater.
• Mr. Glass: 10-year warranty on frames and hardware. Covers manufacturing defects under normal use.

Resale Value and Insurance

All three brands carry full Florida approvals, meaning they qualify for wind mitigation insurance discounts when professionally installed with permits. The brand itself does not affect the insurance discount — what matters is that the products hold the required NOA or Florida Product Approval and are installed correctly.

For resale value, PGT's brand recognition may carry a slight marketing advantage in listings. However, ESW and Mr. Glass are equally recognized by building inspectors, insurance companies, and appraisers as fully compliant products.

ES Windows vs Mr. Glass — which is better?

ESW (ES Windows) is the stronger product; Mr. Glass is the cheaper one. Both carry full Miami-Dade NOA and are legally interchangeable for HVHZ compliance, so the question is purely about performance and price.

ESW ships from Tecnoglass with a standard +/-80 PSF design pressure, Low-E glass, and stainless-steel hardware included at no extra cost — a package that adds up on any other brand. Mr. Glass hits the +/-50 PSF code minimum with basic hardware, and charges for Low-E as an add-on. Installed pricing in South Florida in 2026: ESW $500–$800 per window, Mr. Glass $400–$650.

Bottom line: pick ESW if you want more performance per dollar (especially for coastal or upper-floor homes where the standard Low-E and stainless hardware matter). Pick Mr. Glass if the lowest fully-code-compliant price is the priority. Both are honest choices — this is a value trade, not a quality trade.

Mr. Glass vs PGT

This is the matchup homeowners ask about most, so here is the direct comparison. Both Mr. Glass and PGT are fully Miami-Dade NOA certified and pass the same HVHZ impact tests — so for legal hurricane protection, they are equivalent. The real differences come down to price, frame options, and warranty.

• Price: Mr. Glass is typically 20-35% cheaper than PGT for an equivalent aluminum window. Installed in South Florida, Mr. Glass runs about $400-$650 per window versus $650-$1,100 for PGT.
• Frame options: PGT offers both aluminum and vinyl (vinyl WinGuard carries a limited lifetime warranty). Mr. Glass is aluminum only.
• Warranty: PGT vinyl frames are warrantied for life; Mr. Glass offers a 10-year warranty on frames and hardware.
• Brand recognition: PGT is the most recognized impact brand in Florida, which can be a slight advantage at resale. Mr. Glass is a respected regional Miami manufacturer.
• Bottom line: For a standard residential replacement where the goal is code-compliant protection at the lowest cost, Mr. Glass wins on value. For coastal homes, large openings, vinyl frames, or a lifetime warranty, PGT is worth the premium.

If you want the strongest standard performance of the three regardless of this matchup, ESW's +/-80 PSF rating and included Low-E glass make it the value leader — see the full table above.

PGT vs ESW

PGT and ESW sit at the top of the South Florida impact-window market, but they compete on very different strengths. PGT is the domestic incumbent — 65+ years in Florida, publicly traded, the widest dealer and warranty-service network in the state, and the only one of the three offering vinyl frames with a limited lifetime warranty (the WinGuard vinyl line).

ESW, made by Tecnoglass in Colombia, undercuts PGT on price by roughly $150–$300 per window installed ($500–$800 vs $650–$1,100) while shipping with a higher standard +/-80 PSF design pressure, Low-E glass, tint, and stainless-steel hardware all included at no extra cost. On paper, ESW gives you more window for less money.

Bottom line: choose PGT if brand recognition, vinyl-frame options, or the lifetime warranty matter for resale or peace of mind. Choose ESW if you want the strongest standard performance and best feature-set per dollar — especially for coastal or high-exposure homes where the standard Low-E and Kynar coatings pay off.

Which Brand Is Right for You?

Choose PGT if: You want the most widely recognized brand in Florida, you are comfortable paying a premium for name recognition and the domestic dealer network, or you specifically want vinyl frame options with a lifetime warranty.

Choose ESW if: You want the most features per dollar, you prioritize design pressure performance, you need Low-E glass or tinting included without extra cost, or you have a larger home where better glass performance and coatings matter for energy savings.

Choose Mr. Glass if: You have a defined budget and need code-compliant impact protection at the lowest cost, or you are doing a straightforward residential replacement in a standard-exposure South Florida location.

The In-Stock Advantage

Regardless of which brand you choose, buying in-stock inventory through Windows Stock Market can reduce your material cost by 30 to 60 percent compared to a new factory order. All PGT, ESW, and Mr. Glass windows available through the marketplace carry full Florida approvals and NOA certifications, and qualify for the same insurance discounts as new factory orders.

You can search available inventory by exact size, filter by brand, and reserve windows with no upfront payment. Professional installation is available through Vieser Construction across all of South Florida.

Browse in-stock PGT, ESW, and Mr. Glass windows at Windows Stock Market, or call Vieser Construction at (754) 303-7130 for a free estimate.

Frequently Asked Questions

Related Guides

• Vinyl vs Aluminum Impact Windows — which frame material is right for your home
• PGT WinGuard Review — deep dive on the PGT flagship line
• ESW Impact Windows Review — full breakdown of the Tecnoglass line
• Mr. Glass Impact Windows Review — the value brand examined
• Full-service impact windows (in-stock + install + permit) — buy any of the three brands at wholesale with installation and permit included
• Impact Window Costs in South Florida 2026 — full pricing guide
• Are Impact Windows Worth It? — the ROI math
• Impact windows in Broward County — local inventory & installation
• Impact entry doors in Florida — matched entry systems