United Rock Products

United Rock Products A construction aggregate supplier in the greater Los Angeles Basin At United Rock Products, customer commitment comes first.

United Rock Products began mining aggregates in 1916. Our 300-acre site is located in Irwindale - just 25 miles east of Los Angeles. Virgin aggregate material is processed into sand and gravel through cutting-edge crushing and screening operations. Whether making custom blends or creating new products, we have the knowledge and commitment to meet even the most specialized customer needs. A Plant D

esigned For Efficiency
Our automated truck loadout system consists of twelve bins situated above truck scales. This state-of-the-art system can load, weigh, and ticket in as little as one minute. What's more, close freeway access allows our customers to be on the road and delivering material to their job in a matter of minutes. Commitment to the Community
Our goal is to reclaim the depleted quarries after the reserves have been exhausted. This will allow the land to be reused for commercial or residential development projects. This process is important because it enables our participation in the revitalization of Irwindale and surrounding communities.

Hosting the 2026 Summer Interns from Blue Diamond and Sully‑Miller reminded us why this work matters.Their curiosity, en...
06/10/2026

Hosting the 2026 Summer Interns from Blue Diamond and Sully‑Miller reminded us why this work matters.

Their curiosity, energy, and thoughtful questions turned a simple “Day at the Quarry” into something bigger — a chance to share the purpose behind what we do, the pride in how we do it, and the legacy we’re building for the next generation.

The future of our industry is in good hands.

Congratulations to Liam Fuqua for achieving his Unmanned Aircraft Systems Pilot Certification.By deepening his expertise...
06/10/2026

Congratulations to Liam Fuqua for achieving his Unmanned Aircraft Systems Pilot Certification.

By deepening his expertise in unmanned aircraft operations, Liam is not only investing in his own growth — he’s strengthening the tools, talent, and technical reach of our entire organization.

This is how we build capability: one dedicated professional at a time.

This past weekend, United Rock completed our second Heavy Equipment Underwater Egress Training.This program supports ope...
04/30/2026

This past weekend, United Rock completed our second Heavy Equipment Underwater Egress Training.

This program supports operators working near the leading edge of our inert fill operation, where situational awareness and rapid response are critical.

Our geotechnical partners led a focused classroom session on recognizing ground‑sloughing indicators and understanding the conditions that can compromise stability.

The team then moved to a local pool for hands‑on work with professional rescue scuba instructors, practicing how to properly don self‑purging masks, deploy spare‑air canisters, and make a controlled ascent to the surface.

Proud of our operators for committing to this level of preparedness. Safety is a skill we train, not a box we check.

Last week, we proudly went orange across Sully-Miller in support of National Work Zone Awareness Week and “Go Orange Day...
04/26/2026

Last week, we proudly went orange across Sully-Miller in support of National Work Zone Awareness Week and “Go Orange Day.” 🦺🧡

At United Rock Products, we’re proud to stand behind our Construction Division and support initiatives that promote safer work zones for our employees, our partners, and the traveling public.

Safety is more than a priority—it’s a core value

New iron is always appreciated at United Rock Products — giving our team the tools they need to work safer, smarter, and...
04/25/2026

New iron is always appreciated at United Rock Products — giving our team the tools they need to work safer, smarter, and more efficiently every day.

Our team at United Rock Products showed up and showed out for Twins Day—proving great minds really do dress alike!
04/25/2026

Our team at United Rock Products showed up and showed out for Twins Day—proving great minds really do dress alike!

Last week, Sully-Miller went orange in recognition of National Work Zone Awareness Week’s “Go Orange Day.”Across Souther...
04/25/2026

Last week, Sully-Miller went orange in recognition of National Work Zone Awareness Week’s “Go Orange Day.”

Across Southern California, our teams proudly showed their support for NWZAW and reinforced a shared commitment to work zone safety in our industry.

Thank you to all United work teams who participated and helped spread this important message—safety starts with awareness, and awareness starts with us.

Rising water table - no problem - just develop a plan and execute
04/25/2026

Rising water table - no problem - just develop a plan and execute

At United Rock Products, our annual Hearing Conservation Audiometric Testing helps protect the long-term health and well...
04/25/2026

At United Rock Products, our annual Hearing Conservation Audiometric Testing helps protect the long-term health and well-being of our employees. Because safety isn’t just about today—it’s about every tomorrow ahead.

Thank you to Chad Ouellette and Krystle Barraza for organizing the session.

Congratulations to Alex Escobedo on earning his white hard hat!This transition represents more than a change in gear — i...
03/03/2026

Congratulations to Alex Escobedo on earning his white hard hat!

This transition represents more than a change in gear — it reflects growth, trust, and the leadership he’s demonstrated on our night shift. As our Aggregate Scale Master, Alex plays a key role in keeping the trucks running smoothly and ensuring our customers are taken care of.

We’re proud of the progress he’s made and excited to see him continue to grow with our team. Well deserved, Alex — congratulations!

Address

1245 Arrow Highway
Irwindale, CA
91706

Opening Hours

Monday 4am - 4pm
Tuesday 4am - 4pm
Wednesday 4am - 4pm
Thursday 4am - 4pm
Friday 4am - 4pm

Telephone

+16263584558

Website

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