Hill Plastics engineers heavy duty plastic wall mount enclosures built to withstand demanding industrial environments across the U.S. From telecommunications and aerospace to OEM manufacturing, our custom thermoformed and fabricated enclosures are precision-trimmed to your exact specifications—delivered with competitive pricing and quick turnaround times from our 20,000+ sq ft facility in Lewisville, Texas.
From custom thermoforming to precision CNC fabrication, we deliver wall mount enclosures built to your exact specifications.
We vacuum-form heavy gauge plastic enclosure shells using ABS, HDPE, KYDEX, and other industrial materials. Eight forming machines accommodate sizes from small panels to large 5'x9' enclosure housings with consistent dimensional accuracy.
Our two 5'x10' CNC trimming centers precision-cut and finish enclosure parts to drawing specifications. Operations include contour cutting, precision drilling, edge finishing, and fastener preparation for assembly-ready wall mount components.
Our skilled fabrication team assembles enclosure components using heat bending, bonding, riveting, and threaded insert installation. Parts are CNC-trimmed and fabricated to avoid most tooling charges while maintaining tight production tolerances.
We produce custom molds for enclosure production using aluminum, polyurethane, and wood patterns. Low-cost prototype tooling can be completed in just weeks, transitioning seamlessly to production aluminum tooling upon approval.
From concept to physical prototype, we form enclosure samples using low-cost wood or polyurethane tooling machined to print specifications. Prototypes are available for design review or functional evaluation before committing to production runs.
Our 4'x7' rotary thermoforming machine cycles 2.5x faster than standard equipment, enabling cost-effective high-volume enclosure runs. Every production batch is quality-controlled for appearance and dimensional compliance at competitive pricing.
Our sales and engineering team—Brad and Cody Hill—consult with you to evaluate your enclosure requirements. We assess impact resistance, chemical exposure, environmental conditions, and budget to recommend the optimal plastic material and tooling approach for your application.
See how Hill Plastics has delivered precision enclosure solutions for OEMs, aerospace, and telecom customers nationwide.
"Great value, family business, personal attention. Over the years, Cody, Brad, and Aubrey have become valued associates in my small enterprise. Willing to tackle design challenges. Get-her-done communications. Outreach to additional sources of expertise. These folks understand the inventive process. Cody for example is a Kickstarter supporter and is familiar..."
"Hill Plastics did a great job creating a substitute back window for my RV. I have a portable mini-split air conditioner that I use in extremely hot weather to supplement my RV’s own cooling power. The mini-split has an inside unit that blows the cold air and an outside condenser..."
"Great value, family business, personal attention. Over the years, Cody, Brad, and Aubrey have become valued associates in my small enterprise. Willing to tackle design challenges. Get-her-done communications. Outreach to additional sources of expertise. These folks understand the inventive process. Cody for example is a Kickstarter supporter and is familiar..."
"Hill Plastics did a great job creating a substitute back window for my RV. I have a portable mini-split air conditioner that I use in extremely hot weather to supplement my RV’s own cooling power. The mini-split has an inside unit that blows the cold air and an outside condenser..."
"Great value, family business, personal attention. Over the years, Cody, Brad, and Aubrey have become valued associates in my small enterprise. Willing to tackle design challenges. Get-her-done communications. Outreach to additional sources of expertise. These folks understand the inventive process. Cody for example is a Kickstarter supporter and is familiar..."
"Hill Plastics did a great job creating a substitute back window for my RV. I have a portable mini-split air conditioner that I use in extremely hot weather to supplement my RV’s own cooling power. The mini-split has an inside unit that blows the cold air and an outside condenser..."
With over four decades of manufacturing expertise, Hill Plastics brings unmatched capability and reliability to every enclosure project.
Since 1977, we've supplied precision enclosures to OEMs and industrial customers across the United States with proven consistency.
From initial design and low-cost prototyping through high-volume production, we manage every step of your enclosure project in-house.
Our 20,000+ sq ft Lewisville facility houses eight thermoforming machines and two CNC trimming centers—scaled for any production volume.
Low-cost tooling options and our rotary thermoformer's 2.5x faster cycle time keep your enclosure project on budget and on schedule.
Our engineering and sales experts guide every project from concept to completion.
Sales & Engineering Team
Brad Hill brings deep expertise in plastic thermoforming design and materials engineering to every customer project. As a key member of Hill Plastics' sales and engineering team, Brad specializes in helping clients navigate the complexities of material selection—evaluating cost, impact requirements, durability, tensile strength, chemical resistance, and environmental factors to identify the optimal PS or HIPS grade for each unique application. He works closely with customers from initial concept through prototype approval, offering guidance on tooling design, process optimization, and production planning. Brad's hands-on approach ensures that every thermoformed component is engineered for performance, manufacturability, and cost-effectiveness. His commitment to collaborative problem-solving and technical precision has made him a trusted advisor to OEM manufacturers, aerospace clients, and medical device companies nationwide. With a focus on delivering turnkey solutions that meet exact specifications, Brad exemplifies Hill Plastics' dedication to quality, innovation, and customer success.
Sales & Engineering Team
Cody Hill is a skilled plastics engineer and sales professional with a passion for transforming customer ideas into precision-manufactured reality. As part of Hill Plastics' dedicated sales and engineering team, Cody provides expert consultation on product design, material selection, and tooling strategy for custom thermoforming projects. He leverages advanced CAD tools like SolidWorks to collaborate with clients on design refinements, ensuring optimal part geometry, wall thickness distribution, and draft angles for successful vacuum forming. Cody's technical knowledge spans the full spectrum of PS and HIPS materials, enabling him to recommend the best plastic grade based on application-specific demands such as impact resistance, rigidity, clarity, and cost. From rapid prototyping using low-cost tooling to scaling up for high-volume production runs, Cody guides customers through every phase of the manufacturing process with transparency and attention to detail. His proactive communication style and commitment to delivering on-time, on-budget results have earned him the trust of clients across aerospace, telecommunications, industrial equipment, and medical device sectors.
Hill Plastics forms heavy duty enclosures from a range of industrial-grade plastics including ABS, High-Temperature ABS, UV Resistant ASA/ABS, HDPE, PETG, KYDEX, and Polystyrene. Material selection is guided by your application's specific requirements—impact resistance, chemical exposure, temperature range, and environmental conditions—to ensure long-term performance.
Talk to our engineering team for a free consultation on your enclosure project.
Hill Plastics ships custom wall mount enclosures to OEM manufacturers and industrial customers throughout the United States.
Nationwide U.S.
Service Area
20,000+ Sq Ft
Facility Size
Mon–Fri, 7AM–4:30PM
Hours
We deliver custom enclosures to customers across the United States. Contact us to confirm shipping to your area.
Established in 1977 with decades of proven manufacturing excellence.
Advanced CAD and CNC interface for precision enclosure engineering.
High-capacity manufacturing space supporting full production runs.
Share your drawings, specifications, and quantity requirements with our team. We'll respond with material recommendations, tooling options, and a competitive quote tailored to your project.
For immediate assistance, feel free to give us a direct call at +1 972-436-9717. You can also send us a quick email at sales@hillplastics.com.
For immediate assistance, feel free to give us a direct call at +1 972-436-9717. You can also send us a quick email at sales@hillplastics.com.