Best Window Replacement in Poway CA
ENHANCE YOUR CURB APPEAL WITH ULTREX WINDOW REPLACEMENT
Reduce your energy bills, enhance your curb appeal, and protect your home with elegant, Infinity from Marvin ULTREX® window replacement, your Poway window replacement professionals.
There is no better way to improve your curb appeal and open up your home to the sunlight than with new picture windows, bay windows, bow windows, casement windows, or double-hung windows with the preferred Del Mar replacement experts. We also offer an array of high-quality windows with our fixed windows and specialty windows. We also offer an array of high-quality windows with our fixed windows and specialty windows.
New ULTREX® windows replacement will give your home the facelift it needs, making your home look like new again, with fresh seals and a clean finish.
Infinity from Marvin has been manufacturing the highest quality windows for over a hundred years focusing all their efforts on building the best windows with the highest quality materials to provide the best possible window replacement for your investment.
Our prime focus has always been to manufacture the highest quality most elegant window with the thinnest frames. Our thin ULTREX® frames are designed to provide more viewable glass and less bulky frames in order to open your home for a better view of the outside while letting in more light to the beautiful homes in Poway.
MATERIAL MATTERS ONLY COMPANY TO ACHIEVE AMMA 624 VERIFICATION
All composite window replacements are not created equal! The material that your window frames are manufactured with MATTERS. The ULTREX® frames is an innovative material pioneered over 20 years ago, making it one of the first premium composites on the market.
There are a lot of companies that manufacture windows today but none of them compare to the manufacturing process of Infinity from Marvin.
Combining the strength of ULTREX® patented pultruded process with Infinity's patented proprietary co-extruded acrylic finish gives ULTREX® the strength of steel and makes it 8 times stronger than vinyl windows and 3 times stronger than other composite windows.
Infinity from Marvin takes the manufacturing of windows to the next level with ULTREX. The Proprietary ULTREX® finish is the highest rated in the industry the first and the only one to have achieved AAMA 624 verification. ULTREX® is the perfect fit for all of Poway's window replacement needs.
Explore by Window Type
Select an option to view more information about its features and details.
PERFORMANCE
Window Glass Options
Choosing energy-efficient glass options can have a big
impact on your home's comfort. Your Infinity window replacement consultant can
talk you through your options and specific climate needs to find the right
glass for your home.
WINDOW OPERATION
Window Functionality
Windows can crank open, glide open or lift open — so think
about functionality for your specific room. Since window styles offer a varying
amount of ventilation, be sure to consider just how much airflow you need in
your space.
WINDOW CLEANING
Easy Cleaning
Let's be honest, window cleaning
isn't always the first priority around the house, but when company is expected
it can rise to the top of the list. Infinity offers features that allow you to
easily clean the exterior of your casement or double-hung style windows from
inside your home — saving you time on a ladder.
WOOD WINDOWS
Love the Look of Wooden Windows
EXPLORE YOUR OPTIONS
Schedule a Consultation
Call today and explore all your options. Whether in-home or
through a virtual consultation, local Infinity experts are here to help make
your window replacement experience stress-free.


Window Features
Aesthetically Pleasing
Beautiful design and appearance. Fine architectural details, clean lines, and narrow frames. Traditional and Contemporary style choices to match almost any home.
Exterior Color Options
Smooth matte finishes in a variety of colors - Stone White, Sierra, Cashmere, Pebble Gray, Bahama Brown, Bronze, and Ebony. Ultrex fiberglass is also easily paintable in any custom color.
Tough Durability
Ultrex® is stable. Infinity’s windows have one of the lowest thermal expansion rates in the industry. Coupled with the commercial grade finish this window is ideal for the sun drenched, hot, dry and corrosive Southern California communities. No paint or buffing is ever needed. Ultrex® protects against the effects of wind, weather, and time.
Interior Color Options
Available in Stone White, Sierra, and EverWood interiors. EverWood is an engineered Wood Grain Finish that is easily stained to match the color of a home's existing woodwork, but needs zero maintenance and will never rot.
Low Thermal Expansion
This means Infinity windows have a stronger seal that resists sticking, swelling, and warping, providing easy operation for the life of the window.
Easy Maintenance
Easy to clean features with tilt-in and/or removable sash to help you keep your windows looking sharp.
Features and Benefits
- 8x stronger than any vinyl - protects the integrity of your home
- 3.5x stronger than Vinyl/Wood Composites (Fibrex®)
- Expands 87% less than vinyl - resists expanding and contracting in any climate
- Resistant to leaks, seal failures, and stress cracks - all things that can affect energy efficiency
- More Glass with less bulky frames, Ultrex's strength delivers narrow window and door profiles for expanded views and more natural daylight
- Only Infinity from Marvin adds a proprietary acrylic finish that prevents our window from ever fading, cracking, or peeling and remains free of maintenance for a lifetime.
- Sound reduction glass to keep your home secure and free from outside noise.
- Lifetime Warranty
MORE OPTIONS TO CHOOSE
- Choose from 7 exterior colors and 5 interior colors that are factory finish, or you can choose your own custom color.
- Our Everwood finish looks, feels, and acts just like a beautiful wood window without all the repainting and heavy maintenance of a wood window. Match's the look of a wood frame window perfectly.
- Our Ultrex fiberglass construction replicates the look of traditional wood windows with the choice of 8 different wood stain options. Even though it has the look of wood, it has the strength of steel and has great energy efficiency. Making Infinity from Marvin the ultimate window replacement for your Southern California home!
- Choose from a variety of hardware colors. We offer a complete collection of styles, features, and options to complement any home window replacement.
Window Options
Compare Infinity
Weather Tightness
Learn More
Ultrex® fiberglass has the lowest thermal expansion rate, which keeps the window weathertight, reducing the risk of seal failures and air leakage.
Durability
Learn More
While many windows can distort in extreme heat or crack in fluctuating temperatures, Infinity's Ultrex fiberglass windows hold true.
Appearance
Learn More
Drawing on the decades of experience from Marvin Windows and Doors, Infinity products incorporate the details of traditional wood windows without the maintenance.
Low Maintenance
Learn More
The patented acrylic finish and low expansion rate of Ultrex keep Infinity windows looking new and virtually maintenance free.
Maximum View
Learn More
The superior strength of Ultrex fiberglass allows for a truly narrower profile than both vinyl and Fibrex® allowing more glass area, giving you more daylight and better views.
Color Choices & Performance
Learn More
Ultrex's patented, mechanically bonded inline acrylic finish is up to 3x thicker than competitive finishes, providing superior resistance to discoloring, scratching, and denting.
Reputable Manufacturer
Learn More
Marvin Windows and Doors is family-owned with a legacy of innovation and uncompromising performance. We use the finest materials to create exceptional products, backed by first rate service.
Lifetime Warranty
Learn More
With Infinity's Limited Lifetime Warranty you'll have piece of mind.
Infinity's (Ultrex®) Fiberglass
Best
Best
Best
Best
Yes
Best
Yes
Yes
Vinyl/Wood Composites (Fibrex®)
Better
Better
Better
Better
No
Better
Yes
No
Vinyl
Good
Good
Good
Good
Varies
Poor
Varies
No
OUR FOCUS IS ON BEING THE BEST WINDOW COMPANY
Timeless Design
Your home reflects your style and taste. Infinity offers a complete spectrum of styles, colors, and features so you can customize your new windows and doors to get the exact look you want.
Evaluating window material options
The best products are made from the best materials. Here is a list of common materials for replacement windows and doors.
Infinity's ULTREX® Fiberglass
Our proprietary ULTREX® Fiberglass is an innovative material pioneered over 20 years ago, making it one of the first premium composites on the market. ULTREX® fiberglass replacement windows and doors continue to deliver strength, stability, and durability. Our proprietary acrylic finish is three times thicker than the competition.
Other fiberglass windows
The strength and durability of fiberglass make it a good option for replacement windows and doors. Not all fiberglass materials are the same — and finishes can vary across manufacturers. Some have poor mat finish's and others are made very brittle and none have the strength durability and high quality of ULTREX®.
Infinity from Marvin is the only window manufacturers with the state of the art patented pultruded fiberglass process combined with the patented acrylic finish. The proprietary ULTREX® finish is the highest rated in the industry the first and the only one to have achieved AAMA 624 verification. That is why ULTREX® is the best choice for Poway window replacement.
Timeless Design & Timeless Performance
Vinyl
While vinyl is frequently the cheapest option, vinyl windows and doors can warp, peel, shift, and crack under everyday conditions. Vinyl has the lowest ratings for Flexural Modulus and highest ratings for expansion and contraction. Vinyl will expand 8 times more than the glass that it surrounds which can lead to seal failure.
Wood
Wood windows offer more strength, stability, and beauty than vinyl, but they tend to require more maintenance than other window materials.
Vinyl/wood composites
Vinyl/wood composites like Fibrex® are made from vinyl infused with wood fibers (sawdust). Fibrex® isn't fiberglass. Fibrex® is a registered trademark of Andersen Corporation.
Aluminum
Aluminum is stronger than most other materials used to manufacture windows except ULTREX® Aluminum does not crack or peel like vinyl and is paintable. There is not a lot of maintenance with aluminum windows. The challenge with an aluminum window replacement is it is not very attractive, it is a soft metal so it still expands 3 times more than the glass which can lead to seal failure and aluminum can also transfer the heat and cold which can defeat the purpose of effective energy efficiency. Click here to see how ULTREX compares to vinyl and other composite window materials.
Premium Quality
Infinity® products are designed to replicate the look of traditional wood windows and doors while providing modern features and low-maintenance performance. Made out of Ultrex®, Infinity®windows and doors are customized to meet your house's needs of replacement windows while giving you the longevity and toughness to withstand the harsh California weather. All vinyl products distort in extreme heat or eventually chalk and crack in California's sunny fluctuating temperatures. Infinity® window and door products offer the highest level of performance and are virtually maintenance-free due the patented Ultrex®material allowing you to do your replacement window project once.
Details Matter
Infinity® products incorporate the
details of traditional wood windows without all the usual maintenance and
failures of wood materials. The advanced design of Infinity® products combine
easy cleaning features and effortless operation, making them an easy choice for
busy homeowners! Our patented, co-adhesive bonded finish is up to 3x thicker
than competitive painted finishes, and the Ultrex®coating system is AAMA 624-10
verified, meaning our commercial grade finish resists the harshest weather
conditions Mother Nature offers; a claim our competitors can't match.