Fiberglass vs Plastic Pergolas
Both fiberglass and plastic pergolas offer the benefit of a low maintenance outdoor structure. There are two types of plastic pergolas currently available, the first and most common is constucted from vinyl(also known as PVC). The second type of plastic pergola is constructed from a material similar to composite decking(Azek or Palite). These are low maintenance materials, however they differ significantly in terms of quality, lifetime and finish. Below is a detailed comparision of these materials.
Fiberglass
* Maintenance free
* Available in any color
* Structural material with free-spans of up to 20'
* Will not mildew, mold or yellow
* One piece CNC rafter tails
Vinyl
* Low maintenance but will mildew and yellow over time
* Non-structural vinyl tubes
* Pressure treated lumber is inserted into the vinyl and can sag, twist and rot
* Available in a limited number of colors
* Snap-on rafter tails
Azek
* Requires bi-annual painting
* Yellows and mildews over time
* Sheets of Azek are glued to either aluminum or lumber for structural support
* Azek will delaminate and fall of over time
* High cost of ownership
Comparison Chart
| Fiberglass | PVC(Vinyl fencing) | C-PVC(Azek) | |
|---|---|---|---|
| Maintenance: | Maintenance free. | Maintenance free. Will yellow & mildew. | Requires bi-annual painting. Will yellow & mildew. |
| Finish: | Available in any color | Limited color options | Limited color options |
| Durability: | Hard industrial coatings. Durable cast fiberglass column bases. | Scratches easily. Plastic post bases break easily | Azek delaminates and fall off over time |
| Lifespan: | Designed to last a minimum of 15 years | Minimum of 5 years | Minimum of 5 years |
| Structural Properties: | Structural fiberglass pultrusions will not sag or warp. | Structural pressure treated core. Prone to sagging and warping. | Structural pressure treated core. Prone to sagging and warping. |
Azek Pergola Fail
Mildew
This Azek pergola was poorly constructed. It experienced yellowing, excessive rot and sagging as a result of the manufacturer cutting corners.
Beams
This what the main structural support beam looked like when the Azek fell off and the remainder was removed.
Baldwin to the rescue!
The client's contractor reached out to us and we replaced the existing structure with a fiberglass pergola that will last for years to come.
Testimonials
Kelly SpencerThe pergola looks beautiful and is getting rave reviews. It took about 7 hours to erect with 2 fairly good hands to help me. Thanks Max, I think I will have more work for you in the future.
Susan HallHey Max, I thought you would enjoy these. Feel free to use them. Anytime you have someone in the area that would like to see a pergola. I am happy to show them ours. Thanks so much it is absolutely beautiful!!! I just added it to HGTV. I am sending you a link so you can see. Enjoy!
Terry McKinneyMax, I wanted to drop you a line on the pergola. I have received nothing but rave reviews on this "magnificent structure". All of our expectations have been meet and exceeded - your shop has done a great job. We are celebrating an engagement and it will get a lot of usage during that party. Thanks again for your commitment on getting it here as you promised. We will look forward to many years of enjoyment.
SteveThanks so much, Matt. The craftsmanship of your Pergola is outstanding. My wife and I love it. Thanks again!
Jeff LauferMax, Thanks for all your help. Installed pergola yesterday. Looks great.
Charlie NicolaMax - Thanks for the instructions on assembling the pergola - went together nicely and looks great in our small back yard! Regards, Charlie
Glenn Scott of ArizonaAgain I would like to say thanks, dealing with you has been a distinct pleasure. In my line of work it is really refreshing to know there are honest reputable people still around.
Joe and Pat PifkoYou are wonderful! The pergola is spectacular, and we are thrilled. We promise to send pictures of wedding guests enjoying our new "outside room." Thanks again.
John GribokWant you and your staff to know how pleased we are with the entire process and product delivered. Your techs were not only professional but very concerned with every detail of delivering a perfect product. We will consider other products in the near future. You should take great pride in the product and staff your developed. Thanks again!
Eric BarberioOur pergola looks remarkably good, the site, the positioning, the strength, the aesthetics, the measurements are all essentially perfect. My wife doesn't just like the pergola, she loves it! Thank you again.
"First, man defines his architecture. Forever after, his architecture defines him."
It's been a tremendous honor to design and build these fantastic structures for our customers. We look forward to upcoming challenges and the beauty they bless us with.
© 2025 Baldwin Pergolas, Baldwin Lawn Furniture.