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
Jonathon SweetI just wanted to let you know that the pergola and railings are installed. Everything came out fabulous. My customers are very happy with what they have now. Thank you very much!
Jonathan SweetThanks Max! I'll send you a picture today once we finish the install. It is truly AMAZING how well everything went together, especially considering the custom nature of the job and the need to build it against an existing structure.
Edwin HydeMax, I like those screws you use, haven't seen them in Home Depot. I will upload a picture of the pergola with me resting underneath. It went together really well and things just dropped in - I kept expecting something to go wrong, but it fit together well from start to finish. Thanks for a quality product!
Troy GordonThe guys just left and the pergola looks great! Thanks so much! ... The guys were great and everything looks super!
Daniel CarmanThe pavers have been laid for the terrace and sidewalks. Almost a year and half has gone into this phase of my yard transformation. Your pergola Fits into the picture just right. Thanks so much for the help! Dan
Charlie NicolaMax - Thanks for the instructions on assembling the pergola - went together nicely and looks great in our small back yard! Regards, Charlie
Anthony MassaI want to thank you folks, again, for doing such a nice job on the pergola. It really adds to the deck, and I'm sure that we'll really enjoy it in the spring and summer. I'll probably be in touch, some time in the future, regarding retractable canopy shades.
Rachel KiskerThe Baldwin Pergola looked great at the Boston Flower Show- I overheard many wonderful compliments from people in the crowd. I just know that you'll get many orders for it- in red! Thanks for designing such a lovely structure for us.
Elba & Edward BorgesThank you so so much for all of the perfect work that you put into our Pergola. Eddy and I love it, it is simply !BEAUTIFUL!, and looks wonderful on our patio. A great reason for wishing for Spring to arrive.
Jeff LauferMax, Thanks for all your help. Installed pergola yesterday. Looks great.
"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.