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Uponor hydronic system installation in commercial building

Building Systems Engineering

Uponor PEX Systems — Engineered for Every Water Challenge

From AquaPEX plumbing to hydronic radiant heating and pre-insulated district energy networks, Uponor delivers the industry's most reliable piping systems backed by 80+ years of engineering expertise.

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NSF/ANSI 61 Certified
IAPMO Listed — UPC & IPC
25-Year Warranty on PEX-a
Free Engineering Design Support
Available in 30+ Countries

Product Systems

Complete Uponor Building System Solutions

Three integrated product platforms — designed to work together and engineered to last the life of your structure.

PEX-a Plumbing Systems

AquaPEX PEX-a Tubing

AquaPEX PEX-a Tubing

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ProPEX Expansion Fittings

ProPEX Expansion Fittings

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Uponor Plumbing Manifold

Plumbing Manifolds

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Uponor Ball Valves

Ball Valves & Shut-offs

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Hydronic Radiant Heating & Cooling

Radiant Floor Heating System

Radiant Floor Systems

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Radiant Manifold with Actuators

Radiant Manifolds & Actuators

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Uponor Thermostat Control

Thermostats & Controls

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Zone Valves for Hydronic Zoning

Zone Valves & Zoning

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1936
Founded
30+
Countries Served
25yr
PEX-a Warranty
NSF 61
Certified Safe
PE
Engineers On Staff

Applications

Built for the Professionals Who Build

Uponor systems are specified by design engineers and installed by mechanical contractors across every sector of the built environment.

Residential plumbing and radiant heating

Residential Construction

PEX-a plumbing and radiant heating for new homes and multifamily projects

Commercial building mechanical systems

Commercial & Institutional

Engineered hydronic systems for offices, schools, hospitals, and mixed-use buildings

District energy pre-insulated piping

District Energy

Pre-insulated pipe systems for district heating and cooling networks

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Sustainability

PEX-a: The More Sustainable Choice in Piping

PEX-a pipe requires no soldering, no flux, and no torch — eliminating lead and chemical contamination risks. Its flexibility means fewer fittings, fewer potential leak points, and less material waste on every installation. Uponor's AquaPEX is manufactured without plasticizers and is fully recyclable at end of service life.

Our Sustainability Commitment
0
Lead Solder Required
40%
Fewer Fittings vs Copper
100%
Recyclable PEX-a Pipe

What Contractors Say

Trusted by Mechanical Professionals

"The ProPEX expansion system is the fastest, most reliable rough-in I've ever installed. We switched our entire plumbing division to Uponor AquaPEX three years ago and haven't had a single leak-back call."

Marcus T.
Master Plumber, Trident Mechanical, Houston TX

"Their engineering team designed our entire radiant system — slab layouts, manifold schedule, mixing valve sizing — at no charge. That level of technical support is unmatched in this industry."

Sarah K.
PE, Meridian Building Systems, Denver CO

"We specified Uponor pre-insulated pipe for a district heating expansion covering 11 city blocks. Installation was clean, the insulation performance exceeded spec, and the 25-year warranty gave our client confidence."

Erik L.
Project Engineer, Nordic Energy Infrastructure Group

Common Questions

Everything You Need to Know About Uponor PEX

Our engineering team answers the questions contractors and specifiers ask most often.

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PEX-a (Uponor AquaPEX) uses the Engel peroxide method during manufacturing, producing the highest degree of crosslinking (min. 75%) and the most flexible, kink-resistant pipe. Unlike PEX-b or PEX-c, PEX-a has shape memory — kinks can be repaired with a heat gun. PEX-b uses moisture-cure crosslinking and is stiffer; PEX-c uses electron beam radiation. ProPEX connections are exclusive to PEX-a and create a stronger bond than crimp or clamp methods used with PEX-b/c.

The ProPEX tool expands the end of the AquaPEX pipe and the ProPEX expansion ring simultaneously. The fitting is inserted, and the pipe's memory causes it to contract back toward its original diameter — creating a compression seal that gets tighter over time. No crimping tool torque variation. No clamp positioning errors. Independent testing confirms ProPEX connections exceed the burst pressure of the pipe itself.

Yes. Uponor's engineering services team — staffed by licensed professional engineers — provides complimentary radiant system design assistance including slab layout drawings, manifold sizing, tubing schedules, and thermal load verification. Submit your project drawings through our System Design page or contact your regional sales engineer.

Uponor AquaPEX and ProPEX fittings are listed by IAPMO to ASTM F876/F877 standards for both UPC and IPC compliance. All potable water products meet NSF/ANSI 61 for drinking water safety and NSF/ANSI 14 for material performance. Products are also ICC-ES evaluated and listed by the Plastics Pipe Institute (PPI). All certifications are from independent, accredited third-party bodies.

Uponor offers a 25-year limited warranty on AquaPEX PEX-a tubing against manufacturing defects when installed in accordance with Uponor's installation guidelines and applicable plumbing codes. The warranty covers the pipe, ProPEX fittings, and brass valves when used as a complete Uponor system. Full warranty terms are available on the product documentation page.

Ready to Specify Uponor for Your Next Project?

Our engineering team can review your project drawings and deliver a complete Uponor system design — pipe layouts, manifold schedule, and specifications — at no cost to you.

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