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FIBERGLASS WINDOWS

The Ideal Choice of Replacement Windows
for Valley of the Sun Homes

Fiberglass windows are a popular choice in Arizona, with thin frames that allow ample light and visibility into the home. While more costly than vinyl, fiberglass windows are impervious to rot and termites, and have a longer lifespan than vinyl windows. Their impressive durability withstands decade after decade of Arizona sun.

They are slightly more energy efficient than vinyl, depending on the specific window and energy efficiency features or upgrades chosen, and can mimic the look of wood—a design feature important to some homeowners. Options are also available in a wide variety of style choices, including finished wood interiors.

DunRite Windows & Doors offers a selection of fiberglass window and door products from multiple manufacturers, and would be happy to come out to your home to provide a free estimate. We’ll share the pros and cons of different window materials, and suggest options that fit your home and budget. Contact us today!

fiberglass windows, Phoenix AZ

A Few Fiberglass Window & Door Brands We Carry…

Milgard windows
Andersen Windows logo
Pella Certified Contractor logo

“We would recommend him to friends and family in the future. We didn’t require his services for this particular job but his customer care is outstanding!

We called him to replace a window in our home on a Sunday. Not only did he get back to us immediately, he let us know that we contacted the wrong company and referred us to a company that could help us. He explained that if he did come out and do the job he would replace the entire window and what we actually needed was just a glass replacement, saving us a lot of money. He was professional and very easy to deal with.

Even though we didn’t use him – based on his integrity, professionalism and customer care, we would recommend him in the future.”

Common questions about fiberglass windows

Fiberglass windows are made from a blend of polyester resin and glass fibers that can be shaped and molded, even stamped to look like wood.

Made from approximately 60% glass and recyclable when removed, fiberglass windows are an environmentally friendly choice. A strong, durable material that won’t bend or dent, fiberglass windows resist termites, water damage, corrosion and rotting. It also has minimal expansion or contractions from weather, and can withstand even the most extreme heat.

Options range from basic fiberglass windows, where the entire window or door frame is extruded fiberglass, to mid-range doors and windows that have a thin layer of fiberglass wrapped around a wood core, and higher-end windows that have the glass fiber pulled through a resin bath and a heated die, then topped (or clad) with an exterior thin layer of another material, such as aluminum, Fibrex or vinyl.

Many manufacturers include proprietary compounds in their fiberglass mix to extend durability and/or energy efficiency.

DunRite Windows & Doors installs Andersen®, Pella® and Milgard® fiberglass windows, and they’re absolutely the best window option for Scottsdale and Phoenix area homes. They’re the strongest material, with thin frames that shows the most possible amount of glass. Depending on the product and the options you select, they can also be exceptionally energy efficient… the best choice for intense heat. They also expand and contract less than most other materials, and require no maintenance.

So why are they less popular than other options? The amount of labor it takes to manufacture a fiberglass window is more intensive than other window frame materials, and the source materials are also a bit more costly, leading to a product that can be pricey. In our opinion, thought? They are worth every penny. We particularly install quite a bit of Pella Impervia® fiberglass windows, which is one of our favorite products.

Yes, fiberglass windows are better than vinyl windows. They are stronger, they last longer, they have thin profiles (similar to aluminum windows, but far more energy efficient) that many homeowners appreciate, and they are the most energy efficient option available, especially in extreme climates. They handle heat exceptionally well.

They aren’t suited to all budgets, though, as they are considerably more expensive than vinyl. If it’s out of range for your budget, Andersen Fibrex is the second most energy efficient window option, followed by vinyl. Aluminum and wood are last.

All of that being said, fiberglass is ideal for those who prefer to invest in the best, but it’s important to note that vinyl is our #1 most popular product, both here in the Phoenix metro area and nationwide. It provides a long lasting, durable product at a very attractive price point. Good quality vinyl is an excellent choice.

Some brands of fiberglass windows can have the frames painted, and some cannot. Milgard confirms their fiberglass windows can be painted on their website, but Andersen and Pella generally state that painting will void the warranty, and don’t address the topic further in their website.

Before painting any window product, be sure to confirm it’s paintable by contacting the manufacturer of the window, or by checking its specifications on their website. This will also tell you if painting the product impacts the warranty.

One lovely thing about fiberglass windows is that most baked-on factory paint will never need repainting, although it can fade a bit after a decade or two. Depending on the color and manufacturer, it can last as long as the window, which can be forty, fifty years or longer. Zero maintenance is a wonderful thing, isn’t it?

If you’d like to change the color, however, we recommend using a paint professional to ensure the best results. It’s very important to not seal drainage holes, and paint in a way that doesn’t impact how the hardware and window operates. The last thing anyone wants is to paint a window shut so it can never be opened. After all, winter weather can be a fabulous time to leave them open in Scottsdale to enjoy the 70-80 degree days!

DunRite Windows & Doors sells Pella® Impervia®, Andersen A-Series and Milgard® Ultra-Series of fiberglass windows and doors.

Fiberglass windows are more expensive than aluminum windows; but for that price difference, you’ll get improved lifespan, durability and strength, and best-in-class energy efficiency. If budget allows, they are an ideal choice.

How do they compare to another popular choice for high-end homes, aluminum-clad wood windows? The biggest benefit of clad wood is the ability to have the look of wood inside the home, where it can add a lovely warmth to rooms. The compromise? Because it’s a wood window on the exterior with a very thin layer of aluminum over the wood to protect it from the elements, that wood window is less energy efficient. It also requires a certain amount of maintenance and has a shorter lifespan than a fiberglass window. Some fiberglass window manufacturers do offer an embossed wood-grain look, but in our opinion, it falls short when compared to actual wood. If you aren’t particularly attached to the look of wood, or if you plan to paint them instead of using a stain, then fiberglass might be something to consider.

If budget doesn’t allow a purchase of fiberglass or aluminum clad wood, Andersen® fibrex® windows are excellent, and a nice entry into the high-end window category at a more budget-friendly price. They last longer than a vinyl window, although some don’t care for the thicker width of frame.

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Here’s What Our Customers Say…

DunRite Windows & Doors
4.8
Based on 193 reviews
We used DunRite years ago on our condo. Great experience! Now we needed all new windows and arcadia door in our house. I did alot of research and got quotes for quality, materials, reputation and service. Hands down went with DunRite (again). I highly recommend! The crew is Amazing!
Excellent window installation by DunRite. Did our whole house and all the staff were professional and nice. Cleaned up well. Management was very responsive to any questions or concerns. Would respond within 12 hours!
Noreen Pogue
Noreen Pogue
1695844102
We used DunRite Windows and doors to complete a window and door project that another company had started. Now that the project is finished we can honestly say that DunRite won in every category: price (comparing same exact product), follow up and follow through, quality control (what arrived was free from damage unlike the previous company), and overall experience. We will use DunRite for any future needs!
Michelle
Michelle
1695150091
Chris, Jason, and Brian replaced 4 large windows, in my kitchen on September 5th. They arrived on time and clearly knew what they were doing. They were very professional and nice! There was no mess left but most of all they look great! Thanks again to them !
Debbie Wentrup
Debbie Wentrup
1694129889
Dunrite was a great choice to install our window. Even though we only replaced our large front window, they treated us like we were valued customers. The process from purchase to installation went exactly as planned and we were kept informed even when our window arrived broke from the factory. The window looks great and increased the curb appeal of our house. Job well done.
Ti Talleri
Ti Talleri
1693019412
I will say if you want something done call the owner Sal of DunRite directly. Leaving a message with his staff will not expedite a repair. While they the...
Bonnie M.
Bonnie M.
1691762548
My new door is beautiful. It arrived early. Installation was very well done.
Debbie Gallett
Debbie Gallett
1690834443
Replace a patio window & bedroom window with windows that have sound dampening features. They did a professional & clean job. Visited the house, measured & gave quote, sent another tech to ensure measurements are accurate, arrived when they said they would, educated me along the way, including window rail maintenance using pledge lemon spray, NOT WD 40. Cleaned up their mess, & I will now use them for the remainder of my home. Great work!!
Steve Pish
Steve Pish
1686440194
Incredibly professional, reliable, competitive and knowledgeable company. I had a million questions about the window installation process and they were...
Katya B.
Katya B.
1685964820
Finally decided to upgrade my windows and they guys did an amazing job.
After interviewing 6 window companies I settled on DunRite. The team was excellent. Very knowledgeable, respectful , hard working. I was amazed .
jane turock
jane turock
1680905885
I shopped about 20 companies for our whole house window replacement project, and from the sales process with Rick Ritivoy, to working with the office to schedule my project in stages (bathroom windows had to go in first as a shower remodel was contingent on having those in before it could begin) to the actual work being performed, my entire experience was excellent. A lot of companies out there tried the hard sell, which fell flat, but DunRite was happy to work with me over email first and I went went them because of the double lifetime warranty on the windows, and the lifetime labor warranty, on top of having the best price for the types of windows I wanted.Chris, Matt, Jason, and the rest of the crew that did my install were all very professional and accommodating to all requests. They were a pleasure to work with!I’ve had a lot of contractors in and out of my house that last couple months, and DunRite far exceeded all other companies. I would definitely use them again!!!
I shopped about 20 companies for our whole house window replacement project, and from the sales process with Rick Ritivoy, to working with the office to...
Greg G.
Greg G.
1677678779
Absolutely impressed with DunRite from start to finish. We got quotes from many companies who gave us a lot of great information but DunRite was by far the most informative. They weren’t pressuring us at all and spent quite a bit of time with us going over all of our options and answering any questions we had. They actually gave us multiple ballpark quotes on site for different configurations we were considering which helped us choose what was right for us. They weren’t the cheapest quote we got but I still feel we got way more value than we would have with another company. The wait time was not bad considering how backed up the industry is right now, and when it came time for install both of the install teams sent out to install our windows were incredibly professional. They moved and covered items in the area to keep them from getting too dirty or breaking anything, they were quick and respectful of our time and space. The installed windows look fantastic and we couldn’t be happier with the outcome.I would absolutely recommend DunRite to anyone looking for window replacements, they are fantastic to work with and I do not think you’ll be disappointed!
Ray Dunn
Ray Dunn
1676990468
DunRite gave a great price for a high quality front door. Installers were on time, worked efficiently and cleaned up afterwards. We had a perfect new front door!
Jenny Cho
Jenny Cho
1674421080
They showed up on time did the work with professional courtesy and quality. They even fixed a couple minor issues with no hesitation. They offered before I could ask. Highly recommended. Colin and Matt were the install team and Jan was my initial contact. All get my highest recommendation.
Peter DeFalco
Peter DeFalco
1673558835
We used DunRite about 3 years ago when we had a new sliding door installed; it's been beautiful and functional ever since. Our kids got something jammed in the mechanism recently that called for a service visit from Tyler who was so professional and so kind. The issue proved to be more complex and called for back up from his boss JJ, who was just as professional and kind. They fixed the issue quickly, they were so personable, and made my day with their kind service!
Erika Nielsen
Erika Nielsen
1673549021
We used DunRite about 3 years ago when we had a new sliding door installed; it's been beautiful and functional ever since. Our kids got something jammed in...
Erika N.
Erika N.
1673520266
I would give DunRite Windows and doors a 10 if I could. I am a very particular person when it comes to the home. I had been looking for windows for awhile but got tired of looking at this window company and that window company so looked up windows and doors and DunRite came up. I did read their reviews and was impressed. I called them and made an appointment. Daniel Phelps came out to my house and explained the different types of windows and which ones would be good for my home. I bought 7 windows plus French door. George came out to measure a few weeks later and answered my questions. I got a call in December to set up my appointment for installation. Nathan and Jason came out on Monday and worked till 5:00 pm that day and then came back on Tuesday and worked through their lunch to complete my installations. They were hard working, job focused, detailed oriented, professional, particular, organized, quiet, nice, and answered my questions as needed. I was thoroughly impressed and would call DunRite again. Their customer service was excellent from the ordering, measuring to the installation. I am very pleased with the windows and door. They look great.Thank you,Cassandra
Cassandra Nolan
Cassandra Nolan
1673468925
DunRite Windows & Doors recently replacedour windows, seventeen in all, in our two story home. Obviously not an easy job, however, the installers were...
Ruthann S.
Ruthann S.
1673272133
The people at DunRite Windows and Doors are amazing. We purchased windows for a new addition and decided to upgrade some existing windows. Unfortunately, supply chain issues caused one of the replacement windows to be placed on backorder which threatened the totally derail the timeline for the remodel. Sal and his team arranged to have the windows for the remodel installed to keep us on track.
Ted Anderson
Ted Anderson
1672024772
Installation took about 6 hours start to finish for 4 windows in my condo, and I couldn't be happier. There's an art to knowing how many crew members it will take to do the job, and it was amazing to watch them work in such efficient harmony. The finished product is incredible...not just the quality of the windows, you can get great windows elsewhere, but the quality of each installed window, including the framing fit and finish is impressive, and proves the quality of their craftsmanship. I've been singing their praises and will continue to do so. Thanks for the great work, DunRite!
Good window installation companies are hard to come by. Other have very high pressure sales tactics and use third parties to do the actual install. These windows were installed right on schedule, without making any false promises. The crew took their time ti make sure the install was perfect. We will be using them in the future.
Good window installation companies are hard to come by. Other have very high pressure sales tactics and use third parties to do the actual install. These...
Brandon R.
Brandon R.
1669106914
These guys are very professional and their workmanship is outstanding. I'm so happy that I chose them to do my commercial doors and windows for my house. I...
Lana W.
Lana W.
1668536204
Excellent company! Great communication and they did a great installation. Very clean and highly recommended.
Sam
Sam
1666369916
We had 11 new windows and 4 custom doors installed throughout the house. Sal and the team were incredible to work with. They came out several times to ensure we had the right order with the correct measurements. Then on installation day the crew came out and were professional, cleaned up afterward, and did a great installation overall.I couldn't recommend this company more! Windows and doors are an expensive investment and having a company really take the time and effort to ensure we made sound decisions made a huge difference for us.
Jason Edwards
Jason Edwards
1666288058
I was very impressed with the windows. There was some problems after the work, but they came back and handled it professionally. The price, what can I say, awesome.
Purchased windows from them a couple of years ago and very happy with the windows and install.We are now purchasing a new patio door and another window. Looking forward to seeing install when completed.
Mike Terry
Mike Terry
1650508672
If you're considering having new windows installed, do yourself a huge favor and give Sal a call. The guy's been in the biz for years and years and know his...
Rl R.
Rl R.
1589401391
I am very happy to say that my experience with DunRite Windows was excellent. Colin and Jesse were great. Friendly , courteous , neat and clean. Did I...
Patricia C.
Patricia C.
1585726543
We used Dunrite based on customer high ratings and the company did not disappoint. We had a custom made window and custom made door and frame with a security screen installed the house we just recently purchased.

The installers were efficient and cleaned everything up nicely. Our salesman, Sal, was awesome. He was very accommodating. He answered some questions for me about other windows and doors in my house. He offered my advice on some screen installation. He actually recommended a different type of company to complete the work I wanted done. (just like the movie Miracle on 34th Street). We were not happy with one of the choices we made with the door installation. We thought we would like our choice of framework but did not like the selection once it was up. Even though it was DunRite’s fault, they exchanged the section we were not happy with and did not charge us extra money for their time or the new materials.

I would highly recommend the company.
Yvette Speers
Yvette Speers
1464285541
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