Google Icon

Custom Mold Services & Manufacturing Solutions

From prototype to high-volume production, Hill Plastics delivers precision custom mold services and manufacturing solutions trusted by OEM manufacturers, aerospace, medical, and industrial industries nationwide. With 45+ years of expertise, advanced thermoforming equipment, over 20,000 sq ft of manufacturing space, and a team dedicated to quality and competitive pricing, we take your idea from concept to finished part.

Custom mold making and plastic manufacturing facility with thermoforming machines and tooling equipment

Our Custom Mold Services & Manufacturing Solutions

Comprehensive plastic mold making, thermoforming, fabrication, and production services tailored to your exact specifications and industry requirements.

Mold Making & Tooling

Custom molds and tooling crafted from aluminum, polyurethane, and wood using the latest design software. Supports prototypes through full production runs with low-cost tooling options and precise aluminum production molds.

Thermoforming & Vacuum Forming

Eight thermoforming machines ranging from 2'x3' to 5'x9' deliver custom vacuum and heavy-gauge thermoforming for enclosures, OEM parts, radomes, POP displays, and more — with short lead times and competitive pricing.

Plastic Fabrication

Skilled fabrication services including precision trimming, drilling, heat bending, bonding, fastener installation, and edge finishing for custom enclosures, machine guards, POP displays, and industrial components.

CNC Trimming & Cutting

Advanced CNC router equipment and two 5'x10' trimming centers deliver dimensionally accurate, clean-edged parts to drawing specifications — supporting contour cutting, drilling, and assembly-ready production.

Prototyping

Low-cost wood or polyurethane tooling enables fast, precise prototypes for design review or functional evaluation. Master patterns are CNC-milled to print specifications and ready for production approval in just weeks.

High Volume Production

A 4'x7' rotary thermoforming machine running 2.5x faster than standard single-station equipment powers cost-effective, quality-controlled high-volume runs from thousands of parts to complete fulfillment.

Step-by-step plastic mold manufacturing process from design to finished thermoformed parts

Our 6-Step Process: From Concept to Finished Part

Step 1: Design Review & Requirements Gathering

Our sales and engineering team works directly with you to understand your product requirements, intended application, and industry specifications. We evaluate functional needs and identify the best manufacturing approach for your project.

Step 2: Material Selection & Engineering

Step 3: Low-Cost Tooling & Prototype Production

Step 4: Design Approval & Aluminum Production Tooling

Step 5: Production & Quality Control

Step 6: Secondary Operations & Fulfillment

Trusted By Industry Leaders

Success Stories

See how Hill Plastics has delivered precision mold and manufacturing solutions for leading OEMs, aerospace, and industrial clients.

"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..."

Dan Burns
Dan Burns

"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..."

Stephen Souris
Stephen Souris

"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..."

Dan Burns
Dan Burns

"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..."

Stephen Souris
Stephen Souris

"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..."

Dan Burns
Dan Burns

"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..."

Stephen Souris
Stephen Souris
The Hill Plastics Difference

Why Choose Hill Plastics?

Four decades of precision manufacturing, advanced equipment, and a commitment to quality make Hill Plastics the trusted partner for custom mold and manufacturing solutions.

45 Years of Expertise

Founded in 1977 near Dallas/DFW, our team holds a minimum 20-year industry tenure — bringing deep expertise to every mold and manufacturing project.

Advanced Facility

Over 20,000 sq ft of manufacturing space, eight thermoforming machines, and a 4'x7' rotary former running 2.5x faster than standard equipment — ready for any volume.

Low-Cost Tooling

Wood and polyurethane prototype tooling keeps upfront costs minimal, letting customers validate designs quickly before committing to aluminum production molds.

Nationwide Service

Serving OEM manufacturers, aerospace, telecommunications, medical, and industrial clients across the United States with competitive pricing and quick turnaround times.

Meet the Hill Plastics Team

Experienced engineers and sales professionals dedicated to your manufacturing success.

Brad Hill, Sales & Engineering Team at Hill Plastics

Brad Hill

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.

Cody Hill, Sales & Engineering Team at Hill Plastics

Cody Hill

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.

Frequently Asked Questions

What types of molds does Hill Plastics produce?

Hill Plastics produces molds from several materials depending on your stage of production. Prototypes and pre-production parts use low-cost wood (CNC-milled mahogany or Perfect Plank) or polyurethane tooling. Production parts are formed using aluminum cast molds. The company also provides drill fixtures, trim fixtures, and threaded insert tooling to support the full range of manufacturing requirements.

What is the typical lead time for tooling and prototypes?

What plastic materials can Hill Plastics work with?

Can Hill Plastics handle both small prototype runs and large production volumes?

What secondary operations are available after forming or fabrication?

Which industries does Hill Plastics serve?

Does Hill Plastics offer product design assistance?

Where is Hill Plastics located and does it ship nationally?

Still Have Questions About Our Mold Services?

Talk to our engineering team for a no-obligation consultation on your project requirements.

Proven & Trusted

Awards and Recognition

45 years in business badge for Hill Plastics

45 Years in Business

Established in 1977, a decades-long track record of manufacturing excellence.

SolidWorks certified design badge

SolidWorks Certified Design

SolidWorks software certified for precision CAD design and CNC interface.

Quality controlled production certification badge

Quality Controlled Production

Custom quality control system monitors every production stage for consistency.

Request a Quote for Your Custom Mold or Manufacturing Project

Share your project details and our engineering team will respond with a tailored solution, material recommendations, and competitive pricing — typically within one business day.

Contact Us Today

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.