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About Plastilock Electrical

Electrical Boxes for Foam Forms

Insulated Concrete Formed  buildings tend to last a long time due to the system’s durability and  strength. However, the needs of the people in the structure will change over time.

The Plastilock ICF system electrical box is designed for builders to install inside the walls before they pour the concrete.  Instead of using a knife or chainsaw to cut the material afterward, just  take care of it ahead of time.


Plastilock is easier, faster, and  cleaner to install, and it allows for effortless electrical wiring  upgrades later, which your clients will love.

Not only does  Plastilock make your job and the electrician’s job easier, but our  electrical boxes for ICF structures also make buildings safer.  Inspectors are huge fans of Plastilock since the system is designed  specifically for ICF, making the boxes safe and secure.


Use Plastilock,  and you can count on everybody involved in your project being happy.

Many of the methods, retrofits and materials now being used to install electrical services are labor intensive  and not well suited for code compliant installations. Once these wiring schemes get covered with stucco or drywall, no additions or upgrades can easily be made.

Our Experience

With over 40 years of experience in the construction and building materials industry, Plastilock Electrical has the knowledge and expertise to provide high-quality products and services to our clients. We have a proven track record of success, and we are committed to continuing to improve and innovate.

Fast. Easy. Legal.

"Absolutely the best way to wire an ICF house. Period."

Harley Lyons - ICF homeowner


•      Neat & Clean

      UL Tested for ICFs


      Fast & Easy to Install

      Fits 1/2" to 3/4" Conduit

      Secure Mounting in Walls

      No Slow Cutting for Wiring

•      Chase for Future Upgrades

      Fits All ICF Systems

      Single, Double & Triple Gang Sizes



Hear From Real Clients


Breck - Longhorn Electric

"Night and day does not describe the difference between using the Plastilock boxes with conduit verses cutting the wiring in. Never again will I cut in my wiring on an ICF job. I'm a believer!"

Rodger Horton - Homeowner

"It was a pleasure actually having the electrician give me a discount on my electrical rough-in because the Plastilock boxes were already installed. Even after figuring in all the materials and labor costs the ICF installers charged to set the boxes, I came out saving over $500 on the electrical."

Dave VanMatre - Builder

"I do 8-10 complete homes per year. We use Plastilock boxes and conduit in every home we do. It's cleaner, neater and it sets us apart from out competition. Plus, the customers love it because their options are left open. They can easily upgrade phone and data lines later on without major expense of having to tear out drywall."

Chris Chop - Structural Engineer

"Why retrofit your electrical system when there is an advanced technology in the industry? We have our ICF clients use conduit in the walls and Plastilock boxes."

"T" - T's Electric

"These boxes are slick! No cutting mess! And no having to screw the boxes to concrete! It fan be a problem nailing or screwing retro-fitted boxes to the concrete, as they can loosen up over time, especially on outlets that get used a lot."

Brian Catalucci - Homeowner/Pilot

"I love electronics and the possibilities of home automation. I have my home fully installed with the Plastilock boxes and a conduit system in my ICF walls so I can have features added as needed."

Brad Hebig - Builder

"I have been doing ICFs for 25 years. I have chain sawed, hot knifed and roto-zipped. There is nothing cleaner, faster or better than setting the electrical boxes as I build. The total cost of the boxes, conduit and installation labor are less than 1% of the total building costs, bottom line. I spec in as many Plastilock boxes as possible on every job. And my customers thank me. "
Electrical for insulated concrete forms
Plastilock ICF Testimonial

Chad Fillwebber, ICF builder - Colorado

Q: You specialized only in ICF construction, why is that?

A: Well, I guess because I really believe in them and the demand has become so strong. I easily stay busy year round installing only ICF systems. I can't believe how popular they have become! But once people learn about all of the advantages, I guess it really is a no brainer.

Completes 24+ ICF projects per year

Q: Do you see any problems still facing the ICF industry?

Q: How do you handle the electrical installation on your jobs?

A: I user the Plastilock electrical boxes combined with a conduit based system that gets installed inside the walls before the pour. It's a faster, cleaner, easier way of doing the electrical on my ICF jobs, and it provides additional benefits for the homeowner. But man, I have seen it all! Some guys still insist on having the boxes and wiring "cut in" the finished foam walls. I guess so it becomes the electrician's problem. Let him hack through all that foam with a hot knife, router, chainsaw or whatever, right? That's crazy! Hot knives are slow, and chainsaws? Well, that just creates a heck of a mess, and totally chews up the finished foam. I've seen homeowners get real upset with that. Why cut away all that valuable insulation and lower the R-value when there's a better way?

A: Yeah. homeowners need to be selective when choosing an ICF contractor. Most of the problems you hear about usually result from poor workmanship on the part or some ICF installers, or the trades people who put the mechanical systems in the foam once the walls go up, like the electrical boxes and wiring. Even though ICFs have been around for a long time, it still seems like some guys are making it up as they go along, especially when it comes to the electrical system, which is really a shame.

Q: What advantages do the Plastilock boxes offer the homeowner?

A: First of all, your wiring paths are upgradeable. When faxes and computers first stated showing up in people's homes, a lot of them wanted to upgrade to CAT-3 or CAT-5 wiring. Then came cable modems for high speed internet access and the need to post a coaxial. Putting in a home theatre? Don't forget to run the good stuff, like RG6. Not to mention these new "smart homes" with all kinds of automation circuits for climate control, lighting, security, you name it. What's next? Fiber optic? Triaxial? You name it.  The point is, wiring technologies will continue to improve. You want to be able to upgrade these circuits for climate control.

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