New Hampshire’s oldest & largest preservation firm

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“Historic preservation is about caring for the physical reminders of our past, which give meaning to our present and dreams to our future.”

William J. Murtagh

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  • A talented group of architectural historians and related professionals “keep company” to together find solutions to preservation issues. Since its founding, Preservation Company has emerged as New Hampshire’s leading preservation consulting firm with a reputation for excellence and consistently thorough and detailed work.

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  • Preservation Company has partnered with architectural and engineering firms, government agencies, non-profits and private owners on hundreds of successful projects throughout New England.

    We also assist communities and local heritage commissions on diverse projects including the documentation of individual resources, town-wide surveys and planning efforts.

    Finally, Preservation Company has been involved in many projects with developers, helping them to utilize the Secretary of the Interior’s Standards to obtain historic tax credits for certified rehabilitations. A number of these projects have won state-wide awards for excellence.

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We are listed as a certified woman-owned DBE in Maine, Massachusetts, New Hampshire and Vermont.

As New Hampshire's top preservation consulting firm, we help agencies meet historic preservation obligations, identifying and understanding resources to mitigate project effects.

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Preserving our past and shaping a vibrant future