What to Expect When Building a Cleanroom with an EPC Provider

Building a cleanroom or controlled environment is not the same as a typical construction project. It demands accuracy, compliance, and industry knowledge. Whether you work in pharmaceuticals, biotechnology, electronics, or advanced Starting a cleanroom construction project with an EPC provider is not the same as a standard build. Cleanrooms and controlled environments require strict compliance, precision, and expert coordination. Whether your business operates in pharmaceuticals, biotechnology, electronics, or advanced manufacturing, success depends on choosing the right EPC cleanroom partner.

At Cleanroom Catalyst, we specialize in guiding clients through the entire process. This article explains the key stages of cleanroom construction with an EPC provider, helping you plan with confidence and avoid costly mistakes.


1. Initial Consultation and Requirement Gathering

The journey begins with defining your project requirements. A professional EPC provider should review:

  • Business operations and process sensitivities
  • Standards such as ISO 14644, GMP, or EU Annex 1
  • Site conditions, utilities, and space limitations
  • Budget and timeline goals
  • Options for scalability and future growth

A strong EPC partner adds value by suggesting improvements, identifying risks, and shaping a realistic project vision.

For more details, see our Cleanroom EPC Services.


2. Conceptual and Detailed Cleanroom Design

Design is the backbone of every cleanroom construction project. This stage includes:

  • Layout and zoning plans with airflow and pressure cascade strategies
  • Detailed engineering for HVAC, electrical, plumbing, and controls
  • Energy efficiency reviews to lower long-term costs
  • Validation planning integrated early in the design process

Tip: Review the Basis of Design (BoD) document carefully. It will serve as the roadmap for the entire cleanroom project.


3. Permitting and Authority Approvals

Cleanroom facilities must meet local and international codes. Your EPC team typically manages:

  • Submitting permits and drawings to the city
  • Fire protection and life safety compliance
  • Structural load verification and roof penetrations

Some permitting delays are expected. However, experienced providers reduce risks by anticipating objections.

For regulatory background, see ISO 14644 Cleanroom Standards.


4. Procurement and Long-Lead Equipment

Cleanroom construction often requires custom materials and equipment. Key long-lead items include:

  • HEPA filters and terminal units
  • Cleanroom panels, ceilings, and doors
  • Custom air handling units (AHUs) and chillers
  • Building management and control systems (BMS)

A procurement register will help track delivery times and identify critical path equipment.


5. Cleanroom Construction and Site Execution

During this stage, your cleanroom begins to take physical form. Typical work includes:

  • Building partitions, walls, and ceilings
  • Installing ductwork, HVAC, and air balancing
  • Running electrical, controls, and BMS systems
  • Adding flooring, pass-throughs, and gowning rooms
  • Completing fire and life safety systems

With cleanroom projects, the construction process is as important as the final outcome. Clean sites, strict protocols, and clear communication ensure quality.


6. Commissioning, Testing, and Validation

Validation confirms that your cleanroom meets operational standards. Activities include:

  • HVAC testing for airflow and pressure differentials
  • Particle count measurement for ISO or GMP compliance
  • Temperature and humidity control verification
  • Operational readiness checks and SOP reviews
  • Final certification to ISO Class or GMP Grade

At this stage, you should receive full commissioning reports and compliance certificates.


7. Training and Handover

Your team must be ready to manage the facility from day one. Handover includes:

  • Training on cleanroom operation and protocols
  • Maintenance schedules and manuals
  • As-built drawings and project documentation
  • A final project report

Training ensures compliance continues long after project delivery.


8. Aftercare and Ongoing Support

The right EPC partner stays engaged after completion. Post-handover support should cover:

  • Warranty and service agreements
  • Maintenance contracts
  • Help with cleanroom re-certification
  • Audit and inspection support

This long-term partnership protects your investment and ensures continuous compliance.


Defining Success in a Cleanroom Project

A successful cleanroom construction project with an EPC provider should:

  1. Meet ISO 14644 or GMP standards
  2. Stay on schedule and within budget
  3. Operate with efficiency and reliability
  4. Remain scalable, safe, and easy to maintain
  5. Leave your team trained and confident

At Cleanroom Catalyst, we deliver more than cleanrooms. We provide clarity, accountability, and expert guidance throughout the entire journey.

If you are planning a cleanroom project, explore our About Us page and connect with our team to start your project.