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When it comes to reducing air leakage, improving airflow, aesthetics and ease of installation, spiral is superior.

Your # 1 Source for HVAC metal components.

Industrial air ducts ventilation made of

Square Duct

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Construction Trades

No job is to big or to small for MPI; and no matter what size your job is, you can expect the highest quality and dependable service. 

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Why Choose MPI


When you choose MPI as a supplier you are not just getting a vendor, you are becoming a partner.  MPI has superior service to any competitor, we are with you from the first large order to the last couple pieces you need to finish the job.  We currently service both residential and commercial mechanical contractors.  So we understand how large lead times can affect your bottom line. MPI can help save you time and money, by getting you what you need when you need it most.

Spiral pipe combines the economies of light gauge metal with a spiral lock seam construction that assures maximum strength and rigidity. As a result of its superior structural strength, spiral requires fewer joints and hangers. Four ply's of metal form a continuous interlocked reinforcing rib on the outside which allows making different lengths of pipe in various diameters from strip stock of specified gauge.


Standard Elbows and Angles are fabricated from 24 gauge galvanized material.  Other diameters, throats radiuses and gauges are available.


52" and larger in diameter 90-degree elbows are fabricated using two 45 degree angles unless otherwise specified. 


MPI believes in hard work and we take pride in everything we make.  MPI is a partner that you can trust.  With over 20 years experience in metal fabrication, we can help you with custom fabrication.  MPI works with most metals available; Kynar finish, stainless, copper, aluminum, and steel.  All products can be fabricated in a Kynar finish with a 20 year guarantee color finish.    


Quick & Easy Pick Up

MPI understands your time is valuable, so we make it our mission to be here early for you.  Pickup is fast and easy.


Great and reliable service!  In business it is important to reign in costs without sacrificing service.  We use GPS routing to ensure efficiency.

Competitive Pricing

We know you have other options for your metal needs.  So we offer the best pricing possible upfront to save you time when you are estimating.