MRI Shielding Services
We Design, Manufacture & Install MRI Shielded Enclosures
- 500+ RF & MRI Shielding Projects Worldwide
- Shielding Specialists With 75+ Years Combined Experience
- Commitment to Customer Satisfaction
- 100% Satisfaction Guarantee
- Unparalleled Quality & Warranty
Our Services
EMI Shield Design
National Shielding provides RF shield and magnetic shield design services for MRI suites, RF test labs, sensitive government facilities, and other applications requiring electromagnetic interference (EMI) protection. Our engineers work with your team from concept through commissioning to ensure your shielded environment meets specification.
RF Shield Fabrication
Our shielded rooms include:
- Galvanized steel or copper panel systems
- RF shielded doors (single and double leaf)
- Shielded observation windows
- Waveguide ventilation panels
- Power line filters and signal penetrations
- Full testing and certification
Shield Room Services
From shield repairs to complete RFI Shielded Enclosures, National Shielding provides the full spectrum of shielded room services. We offer preventive maintenance programs, shield integrity testing, door realignments, filter replacements, and complete room relocations.
RF Shielded Doors
National Shielding manufactures high-performance RF shielded doors for MRI suites, RF test chambers, SCIF rooms, and other shielded enclosures. Our doors are designed for reliable, long-term operation with consistent shielding effectiveness.
Available in single-leaf and double-leaf configurations, our RF doors feature knife-edge contact systems with beryllium copper finger stock for superior conductivity across the full frequency range. Every door is factory-tested before shipment and field-tested after installation.
We also provide door maintenance, realignment, and gasket replacement services for doors from any manufacturer.
2006
Year Established
500+
Projects Completed
Magnetic Shield Design Services
National Shielding offers comprehensive magnetic shielding design and installation services for MRI suites, sensitive research labs, and any environment where stray magnetic fields must be contained or excluded. Our magnetic shielding solutions use high-permeability materials such as silicon steel and mu-metal to redirect magnetic flux lines away from sensitive areas. Whether you need to shield an existing MRI suite from adjacent ferromagnetic interference or contain the 5-gauss line within your facility's property boundary, our engineers will design a solution tailored to your specific field strength, room geometry, and regulatory requirements.
RF Shielded Enclosures
Our RF shielded enclosures provide reliable electromagnetic isolation for MRI systems, EMC testing, secure communications, and sensitive research applications. Each enclosure is custom-designed to meet your specific attenuation requirements and room dimensions.
National Shielding enclosures feature modular galvanized steel or copper panel construction with continuously welded seams for maximum shielding integrity. Standard configurations achieve 100 dB or greater attenuation from 14 kHz to 10 GHz.
Every enclosure includes RF shielded doors, waveguide ventilation, power line filters, and signal penetration panels as needed. We handle the complete project — design, fabrication, delivery, installation, and certification testing.
About National Shielding
National Shielding is a veteran-owned business specializing in the design, fabrication, and installation of RF shielded enclosures and magnetic shielding systems. Founded in 2006, we have completed over 500 shielding projects for hospitals, research institutions, government agencies, and private corporations worldwide.
Our team brings over 75 years of combined experience in electromagnetic shielding. We handle every phase of the project in-house — from initial site surveys and engineering design through fabrication, installation, and final certification testing.
We are committed to delivering shielding solutions that meet or exceed specified attenuation levels, on time and within budget. Our quality management system ensures consistent results across every project, whether it's a single MRI suite or a multi-room shielded facility.
As a veteran-owned small business, we understand the importance of integrity, precision, and accountability. These values guide everything we do, from our initial consultation through post- installation support.
2006
Year Founded
500+
Projects Completed
75+
Years Experience
Our Portfolio
RF Shield Fabrication & Installation Process
Frequently Asked Questions
What is RF shielding and why is it needed?
RF shielding (also called EMI shielding or Faraday shielding) is the practice of enclosing a room or enclosure with conductive materials to block external electromagnetic interference from entering or internal signals from escaping. It is required for MRI suites, RF test labs, SCIF rooms, and any environment where electromagnetic compatibility or signal security is critical.
What materials do you use for RF shielded rooms?
We use galvanized steel panels, copper panels, and aluminum depending on the required attenuation levels and frequency range. Our standard MRI shielding systems use galvanized steel panels with continuously welded seams. For higher-performance applications, we use copper or combination systems. All materials are selected based on the specific shielding requirements of your project.
How much does an RF shielded room cost?
The cost of an RF shielded room depends on the size, required attenuation level, number of penetrations (doors, windows, filters), and site-specific conditions. A typical MRI shielded room ranges from $80,000 to $250,000+. We provide detailed, no-obligation quotes for every project. Contact us with your specifications for an accurate estimate.
How long does installation take?
Installation typically takes 2 to 4 weeks depending on room size and complexity. We coordinate with your general contractor and construction schedule to minimize disruption. Our project managers provide a detailed timeline before work begins and keep you updated throughout the process.
Do you provide shielding effectiveness testing?
Yes. Every shielded room we install undergoes comprehensive shielding effectiveness testing per IEEE 299 or MIL-STD-285 standards. We test at multiple frequencies and locations to verify that the room meets or exceeds the specified attenuation levels. You receive a complete test report with your project documentation.
Can you retrofit or repair an existing shielded room?
Absolutely. We offer retrofit, repair, and upgrade services for existing shielded rooms regardless of the original manufacturer. Common services include door realignment, gasket replacement, filter upgrades, penetration additions, and complete re-testing. We also relocate shielded rooms to new facilities.
What is magnetic shielding and when is it required?
Magnetic shielding uses high-permeability materials (such as silicon steel or mu-metal) to redirect static and low-frequency magnetic fields away from sensitive areas. It is commonly required for MRI suites to contain the 5-gauss fringe field within the facility, and for research environments near sources of magnetic interference such as elevators, transformers, or rail lines.
Do you work with government and military facilities?
Yes. National Shielding has extensive experience with government and military shielded enclosures, including SCIF rooms, TEMPEST facilities, and classified testing environments. We hold appropriate clearances and sign NDAs as required. Our veteran-owned status qualifies us for set-aside contracts.
What warranty do you offer?
We stand behind every project with a comprehensive warranty covering materials, workmanship, and shielding performance. Our standard warranty is 5 years, with extended warranty options available. If your shielded room does not meet the specified attenuation levels at any point during the warranty period, we will repair it at no cost to you.