Plenums Plus
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Plenums Plus
We manufacture Round, Rectangular and Flat Oval Ductwork, in a variety of gauges and materials. Our capabilities include the ability to download ductwork from contractor supplied CAD files directly to our CNC plasma cutting system, saving time and minimizing the opportunity for errors. We were the first firm on the west coast to successfully navigate the verification process for our shop standards by SMACNA's Testing & Research Institute.

Our fleet of trucks and trailers deliver our products throughout Southern California, while outside freight companies handle products going to projects from La Paz Mexico to Northern California and out to Arizona and Nevada. We commit to making sure our products arrive on time because your project is as important to us as it is to you.
Services
Our fleet of trucks and trailers deliver our products throughout Southern California. While outside freight companies handle products going to projects from La Paz Mexico to Northern California and out to Arizona and Nevada. As part of our commitment to sustainability, each year we divert more than 85% of our waste from disposal.
Our Production Department is dedicated to maintaining a large inventory of galvanized, low pressure fittings, such as Twyes, Tapers, Elbows, Start Collars, Dampers, and Damper Sections for will-call or delivery, ranging from 4" to 24" round. Our Spiral pipe shop is capable of running these materials in gauges ranging from 28 to 18.
Reviews (7)
JuanPablo Ayala
JuanPablo Ayala
Sep 14, 2021
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Good quality, good people, good environment and most of all
Safety first love this company
Joe J.
Joe J.
Dec 20, 2019
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Large fabrication company that treated me and my nuisance sized job with respect and professionalism. They also got the job done super fast and the price was completely reasonable. 5 stars for Plenums +.
Jeff Farrell
Jeff Farrell
Oct 21, 2019
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I've been doing business with these guys for the past 26 years straight. They fabricate nothing but high quality products from high quality materials made in the USA. They employee at least 100 - 130 union sheet metal workers every day working multiple shifts in their shop alone. Don't take the fact that they are almost always super busy as them being rude. There are guys & gals of every race & color working there. Ask any one of their regular customers, the owners & management are some of the best people you will meet. I don't and wouldn't go anywhere else for the sheet metal ductwork & fittings
Elizabeth Lopez
Elizabeth Lopez
Sep 12, 2019
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Worst customer service! If i could i would give a 0. No customer should be treated bad. They should go out of business.
Brooke D.
Brooke D.
Jun 04, 2019
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Worst CUSTOMER SERVICE ! These guys here are the worst ! Take your business else where . Don't waste your time here.
Jack Green
Jack Green
Nov 12, 2018
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I did work there at place for little bit, the owner is a POS. The owner is a racist!! So please stay away from this place.
Gmg Power
Gmg Power
Sep 30, 2018
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Wow! I’ve never been treated like this before! The owner is a racist! And it was clear to me that that’s at it was! I can’t believe how nasty a person could be as I was just trying to buy some ac material.