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
Jamie DunstI just want to tell you working with you and putting up the pergola was a pleasure. It went together like a dream and you have obviously put a lot of thought into the design and the way everything fits so well. I must admit, before my neighbor approached me about this project I didn't know what a pergola was, at least not by name. Now I know and it has been great to be part of this project. Thanks for answering all my questions along the way.
Tim, Cathy, and Elizabeth.The Pergola looks wonderful! The arches came out great. This is exactly what we were looking for. We spent most of the day yesterday putting it together and finished late afternoon. It went together smoothly and everyone helped. We had fun setting it up. Thanks for spending the day with us and working with us through all of this. We love it!
Lynn and JimFirstly, the pergola is the focus of our garden and patio area. It succeeded in bringing it all together as we had hoped. The shade is more than ample. I do not believe that I would change any of the specs or proportions if I had a chance to alter the order. As you can see by the shot of our boys sitting on the steps, that it worked out marvelously... All in all, we have received tons of compliments. Your attention to detail and quality construction is to be commended. Given the intricacies of this project and the need for it to be assembled, areas which were tight and snug needed squeezing here and there, but that is all. I'll be in touch soon.
Mitch DavisDear Mr. Baldwin, The Pergola is everything I had hoped for and exactly what I ordered. You did an AWESOME Job and the masons are almost finished with the stone work. I will send pictures when the setting is complete. You may post them on your website. My hearty thanks. it was right on time and my project is continuing as scheduled.
David PetersonI am very happy with your product and now know where to go when I need a pergola. It was a pleasure speaking with you and I wish you much success with your growing business.
Jeff VeasmanThank you my friend, we just got done with the big pergola, it took longer to run the wires than it did to put the pergola together. It is freakin sweet Max, oh and by the way Deana Martin, Dean's daughter lives next door. We did a three story add on for them but she said it looks spectacular. Thanks again Max, I'll be sending some pics.
Bill SchlaepferMax I want to thank you for the promptness with which you handled this problem. The way you have handled this speaks volumes about the quaility of your company. I would not hesitate doing business with you again. Thanks again.
Ellen BowenWe love our beautiful pergola! It's exactly what we wanted and we're really enjoying it. We've planted yellow Leverkusen roses and pink lemonade honeysuckle around the posts.
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.
Tony NakelskiWell it's up, took about 7 hours with my wife helping, it probably would have been faster without her. What can I say? Know I'm only kidding she was a big help. She really loves it. It is much nicer then we imagined. It was a very simple project everything went together perfectly. Thanks 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.