Vanguard Windows

Vanguard Windows - Industry Leading Performance, Exceptional Design, Superior Construction, Comprehensive Warranty... There Is No Equal


Prestige Products is the Exclusive Authorized Vanguard Dealer for the Denver-metro market.

If product innovation, high-quality performance and exemplary customer service are most important to you when making a window purchasing decision, then you'll love the product strength, beauty and craftsmanship of Vanguard Windows - the finest replacement window systems for your home.


Our exquisitely designed Vanguard replacement window systems are backed by our TotalCare Warranty, which is a comprehensive warranty package that covers any material defects (including all vinyl frame components), seal failure of the Insulated Glass Unit (IGU) for any reason, and any accidental glass breakage or screen tears, for as long as you live in your home. Plus, it is fully transferrable (not just 1 transfer like everyone else). Compare our warranty to the "Limited Lifetime" warranties other vinyl manufacturers offer and you will see the difference. Better yet, compare Vanguard's true lifetime warranty to the "10-year" frame, hardware and moving parts warranties of non-vinyl product manufacturers and you'll begin to understand why this superiorly crafted window leads the industry in performance, looks, return on investment (ROI) and overall VALUE! There is no better product in the replacement window industry... period.

And there is no better company to trust with the purchase and installation of your new windows than Prestige Products Windows & Siding.

Are Vanguard Windows REALLY Better?

You bet they are! Here's why:

Fully Insulated Frames

Vanguard injects all of the chambers in their mainframes (a true 100% fill) and one chamber in their sash frames with UltraCore, a proprietary, closed-cell Polyurethane Foam that gives the Vanguard window frame an industry leading 7.14 R-Value. When you insulate the frame, you increase the overall ability of a window to halt energy transfer and ultimately keep the interior pane of glass warmer in the winter and cooler in the summer.

Fiberglass Reinforced Sash Frames

Vanguard is the only vinyl frame window on the market that inserts a fiberglass reinforcement bar into the frames of the operational sashes to increase strength and rigidity. The FiberCore fiberglass reinforcement rod infuses the best aspect of the fiberglass and composite framed windows (strength and rigidity) into the vinyl frame to give Vanguard a "best of both worlds" approach. Our vinyl frames can still be fusion welded (melted together at the corners), can still be totally maintenance free, can still be 100% foam insulation injected, and can still be much more affordable than the fiberglass and composite frame competitors, and yet have the strength no other vinyl window offers.

VG12 Glass w/Argon Gas & Glass Guard Spacer

Advancements in glass coating technology have allowed glass manufacturers to continually increase the number of layers of Low-E coating they apply to interior surfaces of residential window glass, thus increasing the overall effectiveness and energy efficiency of the Insulated Glass Units (IGUs) they produce. Vanguard has taken this technology to the limit by introducing VG12 glass as a standard feature in all their windows. VG12 (also referred to as Omega12) is a 12-layer glass coating system, complete with Argon Gas fill and the industry's highest performing spacer, the Glass Guard stainless steel continuous spacer system (no breaks, cuts or notched corners in the entire spacer circumference). This amazing Low-E coating and IGU system allows for maximum UV protection, maximum energy transfer protection (VG12 has a 1% energy transfer rating) and maximum strength and durability, while still allowing maximum ambient sunlight into your rooms.

Incredibly Low Air Infiltration Rates

Most window manufacturers (and salespeople) don't talk about air infiltration in regards to trying to get you to buy their window. Why? Because most replacement window products on the market today don't have very good air infiltration ratings. Vanguard Windows have the best air infiltration (also referred to as air leakage) rating of any window by any manufacturer, period.

The maximum allowable air infiltration rating suitable for residential installation (and to get an NFRC ratings sticker) is 0.3. The only three ratings the NFRC gives are 0.3, .02, or 0.1. Any window with an air infiltration rating BELOW 0.1 still gets that blanket number assigned to it's certification sticker. That's OK for most windows, since they fall at or above a 0.1 anyway. But for Vanguard, it is unfortunate that the number on the ratings sticker doesn't accurately reflect the true rating and it doesn't tell the whole story.
Vanguard Windows have a 0.03 Air Infiltration Rating. That's right - far closer to a 0.0 than a 0.1. Since Vanguard Windows have better weatherstripping than most other windows, and have NO sash slop (the movement back and forth in a closed and locked double operational window), the result is the best air infiltration rating on the planet.
It makes a big difference!

Opti-View "Invisible" Screens

Screens on windows are just part of life. We all have widows and all operational windows have screens. We want to open our windows and look out our windows, but if we could we would all probably ditch the screens so we didn't have to look through them and so we could get the most airflow possible. But the bugs... those nasty little bugs. So we put up with heavy screens (which, before now are all that have been available) so the bugs stay outside when we open our windows. NOT ANYMORE!
Behold the OptiView Screen from Vanguard -
a breakthrough in window & patio door screen technology. OptiView screen mesh is significantly less dense (much more fine) than traditional fiberglass screen mesh. Consequently, the OptiView Screen from Vanguard is up to 50% easier to look through
(it virtually disappears) and it lets roughly 40% more air flow through the screen, optimizing ventilation. This revolutionary screen gives you what you really need in a window or patio door screen - bug coverage; yet it minimizes what you don't like about your screens - having to look through them and having airflow restricted by them. The OptiView Screen from Vanguard Windows is the closest you can come to not having a screen on an operational window at all!

Low Profile, Beveled "Wood Look" Interior & Exterior Frame Design

Many homeowners realize the benefits of vinyl as the frame material of choice for their new windows (fusion welded corners, high efficiency, maintenance freedom, lifetime warranties, etc.), but some of them just don't like the look of "typical" vinyl windows. If this describes you, Vanguard couldn't agree with you more. The aesthetic appearance of the Vanguard frames (both main frames and sash frames) are unlike anything else in the vinyl window industry, and they bring a design concept to the table that no other window manufacturer offers. Vanguard is quite simply the best looking window on the market. The main frame is narrow and has a 45o chamfer on the inside edge of the interior that gives the frame a designer look and feel. On the exterior, the main frame has a double contour that really sets it apart from the crowd. The sash frames are also very narrow (low profile) and have a beveled edge that looks like a routered wood window sash. The Vanguard window was designed to emulate a painted wood window look, with more "flair" and "designer aesthetic" than a traditional vinyl window that consists of squared off 90o corners and very basic lines. By the way, even though the Vanguard frame lineals are low profile, they are still super energy efficient (due to 100% fill foam insulation) and super strong (due to the fiberglass reinforcement bar) - the best of all worlds. Looks aren't everything, and Vanguard knows that if you have a great looking window that is just an average performer, you still won't lead the pack. But to combine the best looks in the biz with the highest performance is what makes a Vangaurd window a Vanguard window.

Recessed Locks & Top Quality Components 

ARGON IS DEAD... At Least After a Few Years
S2210x To The Rescue

20 or so years ago, some science-y type guy figured out how to put an inert gas, called ARGON, in between 2 panes of glass for a residential replacment window and it changed the window industry as we knew it. Argon gas between 2 panes of glass greatly slows the movement of air inside the air space, and it considerably slows the transfer of energy through the dual pane unit. But there are several problems with Argon that, up unitl now, we've just had to deal with since the potential benefit outweighed the fairly substantial drawbacks. The problems are:

  • You can't see it... you're taking the mfg's word it's in there
  • You never know if you have a 99% fill, or if it is less than full
  • You cannot have a capillary/breather tube with Argon fill
  • You cannot take an Argon filled unit over 7,500 ft of elevation, period
  • Although largely false, some mfg's claim that pressure equalization isses can arise in elevations under 6,000 ft
  • And most importantly, ARGON DISSIPATES OVER TIME 


If Argon gas dissipates over time (and all experts agree that it does), then what does that mean for the homeowner that buys high-efficiency replacement windows that have Argon inside and have U-Factor numbers that are based partly on the Argon fill? Exactly, it means that 10, 12, 15 years from now, after the Argon is ALL-GONE, that window that had a .28 U-Factor in 2015 when it was installed now has a .30, .31, .32, etc in 2030. That's a bad deal.

Unfortunately, almost all replacement window mfg's are stuck in the past, still using 20-year old Argon technology to acheive industry leading U-Factor numbers, knowing that it dissipates and will leave every single homeoner that buys a window with Argon in a situation to have a LESS EFFICIENT window 10-15 years from now. So what's the answer? How do we get the same or better efficiency and U-Factors while geting rid of the problematic issue of Argon? Is there a way to provide a window product that will have the SAME efficiency and U-Factor 30 years from now, which is certaily what most folks expect when they spend big bucks on new windows? 

The answer is YES, and it is achieved through a revolutionary new glass coating that aguments the existing Low-E coatings that all good windows have. It is the material and the placement of this new coating that is the magic. The coating is compriosed of Iridium (the same kind of coating your iPhone or Android smartphone have on the screen) and the placement is on the inside surface of the inside pane of glass. This is a cutting-edge technology that has been invented and implemented by a joint effort of Vanguard and their IGU (Insulated Glass Unit) mfg Cardinal Glass. Add 1 layer of Iridium coating to the inside surface of the inside pane of glass, omit the Argon fill entirely, and keep the other 12 layers of soft-coat Low-E on the inside of the glass unit where they already are, and you now have a .26 U-Factor (instead of a .28 for the same unit with Argon instead of Iridium) that will be a .26 FOREVER. This is what the awesome new S2210x glass package from Vanguard is all about. Highest efficiency, no dissipation... it's about time.

H.A.A.R.T. Valve* - Altitude Is NOT A Problem
(HAART Valve no longer available due to S2210x being more effective)

If you are shopping for replacement windows in the Dener metro market, and you happen to talk to salespeople that represent "local manufacture" (meaning windows manufactured in Denver or surrounding areas) you have undoubtedly heard the horror stories of windows manufactured at a lower altitude performing poorly and even "exploding" at higher altitudes like here in Denver (we are, after all, the "Mile High City"). Dealers who sell locally made windows will very often use scare tactics to try and lead homeowners to believe that a window made in the midwest US (Ohio, Michigan, Illinios, etc.) will suffer from seal failure, Argon gas leakage, bowed-out glass units (from non-equalized pressure), or even explosions... oh my! NOTHING COULD BE FURTHER FROM THE TRUTH. Please do not believe salespeople (who's main motivation is a paycheck) when they tell you these half truths and scary, albeit fictitious, stories. Prestige Products has installed tens of thousands of Argon-filled windows manufactured in the midwest right here in Denver (at roughly 5,800-6,000 ft of elevation) and we have NEVER had a problem with seal failure, Argon leakage or bowed-out glass units. It is not until over 7,000 ft of elevation that this would realistically become an issue of concern. ENTER THE HAART (High Altitude Argon Retention Technology) VALVE from Vanguard Windows*. The HAART Valve* is a one-way valve that was invented by (and patented by) the manufacturer of the Vanguard window that equalizes pressure in an Argon-filled IGU at ANY elevation up to 13,500 ft. So, it is absolutely clear that our Vanguard windows, manufactured in Temperance Michigan, with the proprietary one-way HAART Valve*, will perform as well as (and in most cases far better than) any window manufactured in Denver. We have scientific proof... they have scare tactics. You decide.

* The HAART Valve is no longer in production/use and has been replaced with the brand new, revolutionary S2210x glass system, whcih has NO Argon and acheieves an even better U-Factor through Iridium coating on the inside of the internal pane of glass.