NNSY DD4 Duct Insulation Replacement
DEPT OF DEFENSE.DEPT OF THE NAVY.NAVFAC.NAVFAC ATLANTIC CMD.NAVFAC MID-ATLANTIC.NAVFACSYSCOM MID-ATLANTIC · Response deadline: Thu, 10 Dec 2026
What the government is buying
The U.S. Navy intends to award a contract for duct insulation replacement work at Norfolk Naval Shipyard (NNSY) under its DD4 designation. This is a construction project falling under NAICS 236210, which covers "Industrial Building Construction." Duct insulation replacement typically involves removing degraded thermal or acoustic insulation from HVAC or industrial ventilation systems and installing new material to meet current energy efficiency, safety, and operational standards. Shipyard environments present specific challenges including confined spaces, active industrial operations, and strict adherence to naval facility standards regarding fire resistance, asbestos abatement protocols where applicable, and system uptime requirements.
This procurement is issued by Naval Facilities Engineering Systems Command (NAVFAC) Mid-Atlantic, the organization responsible for shore infrastructure across Navy and Marine Corps installations in the eastern United States.
Key facts
| Attribute | Value |
|---|---|
| Agency | NAVFAC Mid-Atlantic (Dept. of the Navy) |
| Notice type | Solicitation |
| Solicitation number | N4008527R0036 |
| NAICS | 236210 |
| Set-aside | None specified |
| Response deadline | December 10, 2026 at 2:00 PM ET |
| Place of performance | See the solicitation |
Who can bid
This solicitation carries no set-aside designation, meaning it is open to all responsible sources regardless of size status. However, NAICS 236210 carries a Small Business Administration size standard of $45.0 million in average annual receipts. Firms below this threshold qualify as small businesses for this procurement and may compete against larger contractors.
Given the specialized nature of shipyard construction work, bidders should evaluate whether they possess or can obtain:
- Facility clearance or base access credentials required for Norfolk Naval Shipyard
- Experience with federal construction contracts, particularly NAVFAC or military facility work
- Relevant craft labor certifications for insulation installation in industrial settings
- Past performance in occupied operational facilities where work must coordinate with ongoing ship maintenance schedules
Contractors without prior Navy shipyard experience may still bid but should assess subcontracting or mentor-protégé arrangements to strengthen technical credibility.
How to put together a competitive bid
For industrial building construction at an active shipyard, competitive bids typically emphasize:
Technical approach: Detail your methodology for phased replacement that minimizes disruption to shipyard operations. Address containment strategies, dust and debris control, coordination with shipyard production schedules, and quality assurance for insulation performance specifications. See the solicitation for specific material and installation standards.
Personnel qualifications: Identify project managers, site supervisors, and lead installers with documented experience in federal or industrial HVAC/insulation work. Security clearance requirements, if any, are noted in the full solicitation.
Safety record: Emphasize your Experience Modification Rate (EMR), OSHA incident rates, and any NAVFAC or U.S. Army Corps of Engineers safety awards. Shipyard work demands rigorous safety culture given confined spaces, elevated work, and potential hazardous material exposure.
Small business participation: Even without a set-aside, proposing meaningful small business subcontracting can strengthen evaluation under customary federal socio-economic factors.
Pricing realism: Government construction solicitations often evaluate price reasonableness against independent government estimates. Ensure your takeoff accounts for shipyard-specific access restrictions, extended work hours to accommodate operational windows, and material handling logistics.
Next steps
- Access the full solicitation at SAM.gov using solicitation number N4008527R0036 to obtain the complete statement of work, drawings, specifications, and any amendments
- Note the strict deadline: December 10, 2026 at 2:00 PM Eastern Time—late submissions are inadmissible in federal construction procurements
- Register in SAM.gov if not already active, as registration is mandatory for award
- Analyze place of performance details and any security requirements once available in the full documentation
- Submit questions through the designated Contracting Officer channels identified in the solicitation, observing any Q&A deadline that may precede the response deadline
View the official notice on SAM.gov →