Built on trust. Proven for mission-critical work.
Long-term partnerships built on trust, transparency, and results.
Award-winning safety practices that protect every person on every job.
More than a century of mission-critical mechanical construction across the DMV.
Design assist, BIM coordination, and planning that reduce risk before ground breaks.
Client Portfolio
Heffron has delivered mechanical construction, process piping, and validated-environment work across AstraZeneca’s Gaithersburg and Frederick campuses for decades — from first-of-its-kind cryogenic systems to ongoing tenant fit-outs inside occupied production space.
The work reflects the standard the client expects on these campuses: precise execution in active life-sciences environments, with safety and quality treated as non-negotiable.
Gaithersburg, MD · 1,000,000+ SF campus
AstraZeneca | MedImmune Way
View Project
Gaithersburg, MD
AstraZeneca | 200 Orchard
View Project
Gaithersburg, MD · 197,645 SF
AstraZeneca | 700 Progress Way
View Project
Frederick, MD
AstraZeneca | Frederick | Cooling Tower & Pipe Installation
Across the AstraZeneca Portfolio
Partner with Heffron
From early design assist through startup and commissioning, Heffron self-performs the mechanical scope your team can build a schedule around.