Uponor engineering team reviewing PEX manifold assemblies in a test lab

Company heritage

About Uponor — Hydronic Engineering Since 1936

For more than eight decades, Uponor has engineered PEX-a piping, ProPEX expansion fittings, and radiant heating systems trusted by mechanical contractors and design engineers across thirty-plus countries.

Timeline

Milestones That Shaped Our Piping & Radiant Platform

  1. 1936 — Foundations

    Uponor begins manufacturing piping components for building water systems, establishing a culture of dimensional stability and field-serviceable connections.

  2. PEX-a adoption

    Engel-method cross-linked polyethylene becomes the backbone of potable and hydronic circuits, improving freeze resilience versus rigid metal runs in many assemblies.

  3. ProPEX expansion

    Patented cold-expansion fittings create visible, inspectable joints that recover around the fitting body for leak-resistant mechanical bonds.

  4. Radiant & district energy

    Manifold systems, zone valves, and pre-insulated pipes expand the portfolio into underfloor heating, cooling, and campus distribution laterals.

  5. Today — Engineering desk

    Licensed professional engineers provide complimentary design assistance—from radiant layout drawings to hydronic calculations—helping contractors win bids and install with confidence.

Values

Principles That Guide Every Submittal Package

Engineering precision

Flow regulation, operating pressure windows, and loop spacing are published with the same rigor as product photography—so plan reviewers see numbers, not slogans.

Independent listings

NSF/ANSI 61, NSF/ANSI 14, IAPMO, ICC-ES, and PPI pathways keep potable and hydronic claims third-party verified rather than self-declared.

Field partnership

ProPEX tool training, manifold balancing coaching, and warranty documentation travel with the material so O&M teams inherit a usable system, not a mystery box.

People

Technical Leadership Behind the Design Desk

Portrait of Uponor chief engineer

Erik Holmgren

Chief Application Engineer — hydronic load modeling and radiant slab assemblies.

Portrait of Uponor product compliance lead

Amelia Chen

Compliance Lead — NSF/IAPMO listing packages and jurisdiction matrices.

Portrait of Uponor field training director

Luis Ortega

Field Training Director — ProPEX technique and manifold commissioning clinics.

Portrait of Uponor district energy specialist

Sofia Lindqvist

District Energy Specialist — pre-insulated laterals and campus plant tie-ins.

Listings

Certifications & Evaluation Reports

NSF ANSI 61 mark NSF ANSI 14 mark IAPMO listed mark ICC-ES mark PPI listed mark

When project teams weigh natural stone radiant overlays against engineered underfloor panels, our published compressive strength and moisture vapor transmission notes keep the debate quantitative. Prefabricated pod risers versus stick-built manifolds, and domestic versus imported specialty fittings, are documented with lead-time and listing implications so sustainability mandates and budget pragmatism can be scored side by side without rewriting the mechanical narrative.

Talk with Uponor Engineering About Your Next Hydronic Package

Whether you need radiant layout drawings, ProPEX training, or a full documentation binder, our desk responds with pipe-size-level answers.

Contact Our Engineering Team