Sheet Metal Fabrication in Fresno and Madera, CA

At Purl's Sheet Metal & Air Conditioning, we’ve been a trusted source for professional sheet metal fabrication in Fresno, Madera, and throughout the Central Valley since 1952. Our in-house fabrication shop uses advanced CNC equipment to deliver precise, high-volume production for everything from custom roofing products and irrigation components to stainless steel countertops and copper range hoods.
- We Provide Sheet Metal Fabrication Services
- Quality Is the Cornerstone of Our Success
- Serving the Central Valley Since 1952
Whether you're updating your kitchen, designing a ventilation system, or need specialized ductwork, our experienced team is ready to bring your vision to life. We’re proud to be the name homeowners, contractors, and businesses trust for exceptional craftsmanship and reliable service. Let us turn your ideas into durable, functional, and beautiful metalwork solutions.
Contact us today to schedule sheet metal fabrication service with one of our professional technicians.

How Custom Sheet Metal Improves HVAC Efficiency
When it comes to HVAC performance, efficiency isn’t just about the equipment—it’s also about how well that equipment is integrated into your home or business. One of the most effective ways to improve system efficiency is with custom sheet metal fabrication, designed specifically to fit your building’s layout and your HVAC system’s requirements. At Purl's Sheet Metal & Air Conditioning, we’ve been combining HVAC expertise with in-house sheet metal fabrication since 1952, serving Fresno, Madera, and the entire Central Valley.
Unlike mass-produced ductwork or components that may not fit perfectly, custom-fabricated pieces eliminate gaps, air leaks, and poor airflow that can result from off-the-shelf parts. This tight, tailored fit ensures that your heating and cooling systems operate more smoothly and use less energy to maintain your desired comfort level.
Here’s how custom sheet metal improves HVAC efficiency:
- Precise airflow control: Custom ductwork minimizes airflow restrictions and ensures balanced temperature distribution.
- Reduced energy waste: Properly sealed and insulated duct systems prevent air leakage, which helps lower energy bills.
- Optimized system performance: Correctly sized fittings and transitions reduce strain on your HVAC equipment.
- Extended equipment lifespan: With less wear and tear due to inefficient airflow, your system lasts longer and requires fewer repairs.
- Improved indoor air quality: Custom ductwork helps reduce dust, allergens, and contaminants entering the air stream.
At Purl's Sheet Metal & Air Conditioning, our fabrication team works closely with our HVAC technicians to ensure every custom component—from ducts to vent fittings—is made with precision and installed with care. Whether you’re outfitting a new system or upgrading an existing one, custom metalwork ensures a more efficient, more reliable result.
We’re proud to offer our own in-house fabrication services using advanced CNC equipment, giving us total quality control over every project. From residential comfort systems to larger commercial builds, we design solutions that improve performance from the inside out.
Contact Purl's Sheet Metal & Air Conditioning today to learn how our custom sheet metal fabrication can boost your HVAC system’s efficiency and comfort.
What Materials Are Best for Sheet Metal Fabrication?
Choosing the right material is one of the most important decisions in any sheet metal fabrication project. At Purl's Sheet Metal & Air Conditioning, we offer expert custom fabrication services in Fresno, Madera, and throughout the Central Valley—built on more than 70 years of experience working with a wide range of high-quality metals. The best material for your project depends on factors like durability, corrosion resistance, aesthetics, and the specific application, whether it’s for HVAC components, roofing products, or custom kitchen features.
Here are some of the most commonly used and recommended materials in sheet metal fabrication:
- Galvanized Steel: Known for its corrosion resistance and strength, galvanized steel is ideal for ductwork, roofing, and structural applications. It’s durable, cost-effective, and easy to form.
- Stainless Steel: This metal offers excellent corrosion resistance, making it ideal for countertops, backsplashes, and range hoods. It’s easy to clean, visually striking, and holds up well in high-moisture environments.
- Aluminum: Lightweight and resistant to rust, aluminum is a smart choice for outdoor and architectural applications. It’s also highly malleable, which makes it versatile for custom shapes and designs.
- Copper: Valued for its appearance and natural antimicrobial properties, copper is commonly used for custom hoods, flashing, and decorative finishes. Though it’s more costly, its longevity and style make it a premium choice.
- Mild Steel: Often used in agricultural and industrial fabrication, mild steel is strong, easy to weld, and affordable—ideal for projects where strength matters more than corrosion resistance.
At Purl's Sheet Metal & Air Conditioning, we take pride in offering personalized guidance to help you choose the material that best suits your vision and functional needs. Our team uses CNC equipment to ensure precision, efficiency, and consistency on every job, whether you’re requesting a one-off part or a high-volume production run.
Contact Purl's Sheet Metal & Air Conditioning today to speak with our fabrication specialists and find the best material for your next custom sheet metal project.
Why Precision Matters in Custom Metalwork
In custom metal fabrication, precision isn’t a luxury—it’s a necessity. Whether you’re creating ductwork for an HVAC system, a stainless steel countertop, or agricultural components, exact measurements and clean cuts are essential for safety, efficiency, and long-term performance. At Purl's Sheet Metal & Air Conditioning, we’ve been delivering precision-driven sheet metal solutions to Fresno, Madera, and the Central Valley for more than 70 years, using advanced equipment and expert craftsmanship to ensure every project meets the highest standards.
Precision in custom metalwork begins with proper design and planning. Even a minor miscalculation can result in poor fit, airflow issues, or performance failures. That’s why our team uses CNC (Computer Numerical Controlled) machines to create accurate, repeatable parts for residential, commercial, and agricultural applications. This technology allows us to work to exact specifications and maintain consistency from one piece to the next, even in large production runs.
Here’s why precision matters:
- Better HVAC performance: Custom ductwork and fittings that are precisely fabricated reduce air leakage, ensure balanced airflow, and improve energy efficiency.
- Fewer installation issues: When components are cut and formed accurately, they fit perfectly the first time, saving time and labor during installation.
- Increased durability: Precision fabrication ensures that joints, seams, and connections are strong and properly aligned, leading to longer-lasting products.
- Aesthetically superior results: For projects like range hoods, backsplashes, and countertops, precise fabrication ensures a clean, seamless appearance.
- Cost savings: Eliminating waste, reducing errors, and minimizing rework all contribute to a more affordable and efficient fabrication process.
At Purl's Sheet Metal & Air Conditioning, we pride ourselves on delivering metalwork that’s not only functional, but finely crafted. Every job, no matter how simple or complex, is completed with care, accuracy, and attention to detail. That commitment to precision is what sets our work apart—and what ensures lasting value for our customers.
Contact Purl's Sheet Metal & Air Conditioning today to learn how our precision-driven fabrication can bring your metalwork project to life with confidence.
How Long Does Custom Sheet Metal Fabrication Take?
One of the most common questions customers ask about custom sheet metal work is, "How long will it take?" The answer depends on the complexity of the project, the materials involved, and how quickly approvals and design specifications are finalized. At Purl's Sheet Metal & Air Conditioning, we strive to balance precision and efficiency, delivering high-quality results on a realistic timeline for our customers in Fresno, Madera, and the surrounding Central Valley.
Simple fabrication jobs—like basic ductwork fittings or standard flashings—can often be completed in just a few days. More complex projects such as custom range hoods, stainless steel countertops, or agricultural equipment components may take a few weeks, depending on the level of detail, the volume of parts required, and material availability.
At Purl's Sheet Metal & Air Conditioning, we follow a proven process to keep projects on track:
- Initial consultation and design: We meet with you to understand your goals and gather measurements or specifications.
- Material selection and approval: Once the design is finalized, we help you choose the best materials for performance and appearance.
- Fabrication: Our in-house team uses advanced CNC machines to cut and form the metal with precision.
- Finishing and quality checks: We inspect each item carefully to ensure it meets our high standards before delivery or installation.
While we always aim to complete work quickly, we never compromise on accuracy or quality. Because we handle all fabrication in-house, we maintain full control over each step of the process—helping avoid delays and allowing for flexible scheduling.
Our experienced team at Purl's Sheet Metal & Air Conditioning is happy to provide an estimated timeline based on the specific needs of your project. We believe in open communication, timely updates, and delivering on our promises.
Contact Purl's Sheet Metal & Air Conditioning today to get a timeline estimate for your custom sheet metal project and experience our commitment to craftsmanship and reliability.

Custom Sheet Metal Fabrication for Any Project
No two projects are alike—and that’s exactly why custom sheet metal fabrication is so valuable. At Purl's Sheet Metal & Air Conditioning, we specialize in providing high-quality, precision-fabricated metal components for a wide range of residential, commercial, and agricultural needs throughout Fresno, Madera, and the Central Valley. Whether you’re updating your home, outfitting a business, or working in agriculture, our expert team has the tools and experience to bring your ideas to life.
Our in-house fabrication shop uses advanced CNC machinery to deliver consistent, accurate results across small- and large-scale projects. From ductwork and flashings to stainless steel countertops, irrigation products, and racing components, we craft each piece to exact specifications using high-quality materials such as galvanized steel, aluminum, stainless steel, and copper.
We regularly fabricate:
- HVAC components, including duct systems and spiral ductwork
- Roofing products like chimney flashings, roof curbs, and vent covers
- Stainless steel kitchen features, including countertops and backsplashes
- Copper and stainless steel range hoods
- Agricultural products like irrigation hydrants and ventilation systems
- Decorative or functional custom metal pieces for homes and businesses
At Purl's Sheet Metal & Air Conditioning, our fabrication process is collaborative and focused on your goals. We start with a detailed consultation, design each component to your unique specifications, and follow through with expert craftsmanship and a commitment to quality. Whether it’s a one-off custom item or a high-volume production order, we apply the same level of care, precision, and professionalism.
We’ve been providing trusted sheet metal services since 1952 and continue to serve the Central Valley with the same customer-first values that built our reputation. Our fabrication shop is equipped to handle any challenge—and our friendly team is here to help guide you every step of the way.
Contact Purl's Sheet Metal & Air Conditioning today to discuss your custom sheet metal needs and discover what we can create for your next project.