Metal Finishing in Menomonee Falls, WI
Fast, Reliable, and Precision-Driven Metal Finishing for Industrial and Commercial Applications
Welcome to L & L Metal Finishing, where we’ve proudly specialized in metal finishing in Menomonee Falls, WI, for three decades. As a family-owned and operated business serving southeast Wisconsin and beyond, we’ve earned our reputation by consistently delivering quality finishes, quick turnaround times, and responsive customer service for industrial and commercial clients. So whether you’re in aerospace, automotive, manufacturing, or machining, we’re here to enhance the strength, appearance, and performance of your metal parts with precision.
And located in the heart of Menomonee Falls, we understand the needs of regional manufacturers and suppliers. We also work closely with businesses of all sizes — from small production runs to high-volume orders — to ensure your parts are finished on time and to exact specifications.
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Nearly 30 Years of Expertise in Industrial Metal Finishing
Since 1995, we’ve served as a trusted provider of industrial metal finishing in Menomonee Falls, WI, bringing specialized techniques and superior results to industries across the region. Our longevity speaks to the quality of our work, the dedication of our team, and our consistent ability to meet urgent delivery schedules without compromising on precision.
We work with a wide variety of metals and components and have deep experience in finishing parts used in high-performance industries like aerospace, automotive, heavy equipment, and commercial electronics. No matter your industry, we’re equipped to meet your demands and exceed your expectations.
Our Metal Finishing Services
At L & L Metal Finishing, we offer a focused range of metal finishing services designed to strengthen your products, protect against corrosion, and improve their longevity and appearance. Our processes are tailored for functionality and endurance.
Black Oxide Finishing
We are proud to be recognized as the leading black oxide plating shop in southeastern Wisconsin. Known for its sleek appearance and added corrosion resistance, black oxide is an ideal treatment for ferrous metals used in tools, fasteners, and precision parts. We’ve streamlined our process to offer one of the fastest turnaround times in the industry — often within 24 hours — without sacrificing the quality or uniformity of the finish.
Passivating Stainless Steel
Our passivation services remove contaminants and free iron from stainless steel surfaces to restore corrosion resistance and extend product life. Using controlled chemical treatments, we enhance the natural properties of stainless steel, leaving a clean, passive surface that resists rust and is ready for demanding environments. Whether you’re preparing parts for medical equipment, food processing, or industrial machinery, our passivation services ensure your materials meet rigorous performance standards.
Barrel Plating
When speed and volume are essential, barrel plating is the cost-effective solution. Our barrel processing lines handle high volumes of small parts efficiently, making this technique perfect for bulk finishing applications. From electrical components to fasteners and small hardware, barrel plating delivers a consistent and durable finish across a wide range of materials.

Our Commitment to Quality and Speed
We understand that when you’re sending parts out for finishing, you’re on a schedule — and often a tight one. That’s why we’ve built our operations around speed and consistency. We are known for the fastest turnaround in the industry when it comes to black oxide and electroless nickel plating. We also maintain high-capacity processing equipment to support both small and large production runs without compromising efficiency or quality.
Our facilities are optimized for rack and barrel processing, giving us flexibility to meet a variety of finishing needs. Every item that comes through our doors is handled with care and precision — because we know your final product depends on our finish.
Why Choose L & L Metal Finishing?
We’ve spent nearly 30 years fine-tuning our processes, training our staff, and investing in equipment that helps us maintain the highest standards of excellence. Here’s what sets us apart:
- Fastest Turnaround for Black Oxide Finishing: Typically within 24 hours
- Experienced, Reliable Staff: With deep knowledge of plating and finishing processes
- Flexible Capabilities: High-volume and small-batch production capabilities
- Industry-Trusted: Serving leading companies across aerospace, automotive, and commercial manufacturing
- Competitive Pricing: Without cutting corners on quality or precision
- Customer-Focused: Quick responses, personalized service, and attention to every detail
At L & L, we don’t just finish your parts — we support your operation by delivering finishes that meet technical requirements, stand up to wear, and arrive when you need them.
Serving Menomonee Falls and the Greater Milwaukee Area
Being based in Menomonee Falls means we’re right in the center of Wisconsin’s manufacturing heartland. We understand the regional supply chain, the fast-paced nature of the work, and the importance of partnering with vendors you can rely on. From our convenient location, we proudly serve clients in Milwaukee, Waukesha, Germantown, and throughout southeast Wisconsin.
Whether you’re a small machine shop just around the corner or a large manufacturer with a facility across the state line, we’re ready to help you meet your finishing goals with dependable service and top-tier results.
Frequently Asked Questions
What is your typical turnaround time for black oxide?
Can you handle large volume orders?
Do you offer custom finishes or special requirements?
Is L & L Metal Finishing ISO certified?
Do you work with materials other than stainless steel?

Take the Next Step
Ready to Finish Your Project the Right Way?
At L & L Metal Finishing, we bring precision, speed, and three decades of experience to each and every order. So whether you’re seeking reliable metal finishing in Menomonee Falls, WI, or you need a trusted partner for industrial metal finishing that meets high-performance demands, we’re ready to get to work for you. Just be sure to reach out today for a quote, schedule a pickup, or stop by to learn more about how we can support your next job. Let’s bring your parts to the finish line — on time, every time.