Plum orchard mansion gutters and flashing replacem

The Department of the Interior National Park Service Southeast Region seeks proposals for replacement and repair of copper gutters and flashing at Plum Orchard Mansion and roof replacement at Davisville Housing units at Cumberland Island National Seashore, with proposals due August 26, 2026. This is a Total Small Business set-aside.

Place of performance is Cumberland Island National Seashore, Cumberland County, Georgia. Work runs October 5, 2026 through January 8, 2027. The procurement comprises two distinct projects: Plum Orchard requires removal and replacement of approximately 274 linear feet of 20 oz copper gutters (ASTM B370, minimum 0.027-inch thickness) in half-round profile with approximately 191 copper strap hangers spaced 24 inches on center, installation of new copper counterflashing at seven masonry chases, and painting with oil-based primer and two finish coats. Davisville involves installation of concealed-fastener standing seam metal roofing (not less than 24-gauge Galvalume-coated steel) on three housing units totaling approximately 4,776 square feet, with selective plywood sheathing replacement at Phillips House. Both projects must comply with Secretary of Interior Standards for Historic Properties and the International Building Code; Plum Orchard work must meet Sheet Metal and Air Conditioning Contractors' National Association standards. Fabricators and installers must demonstrate three years of experience with similar copper gutter work.

The contract is Firm Fixed Price, project magnitude between $100,000 and $300,000. Davis-Bacon prevailing wages apply. Work must begin within 10 calendar days of notice to proceed and complete within 90 calendar days. The site superintendent must be the prime contractor's employee. Performance and payment bonds are required at 100 percent each. Minimum insurance includes $500,000 workers' compensation/employer's liability, $100,000 general liability per person/$500,000 per occurrence, and $1,000,000 property damage.

Proposals must include completed SF-1442, technical proposal not exceeding 20 pages, past performance questionnaires from at least three previous clients, and detailed cost proposal with prime and subcontractor cost breakouts. Evaluation criteria weight technical approach, past performance/experience/technical capability, and cost reasonableness, with non-cost factors considered significantly more important than cost. An organized site visit is scheduled August 5, 2026 at 12:15 p.m. ET; RSVP required by August 4. Questions due August 10, 2026 at 1:00 p.m. ET. Contracting officer is William Vazquez, william_vazquez@ios.doi.gov.