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Märzen Group commercial office building, constructed by Nash Construction in southern New Hampshire

Commercial Construction

Commercial space, built around a business that has to keep running.

Most of our commercial work happens in buildings that are already occupied, next to tenants who are already trading. Sequencing that properly is the job — and after 50 years in southern New Hampshire, it is the part we are best at.

What we take on

From a single storefront fit-up to a full building renovation, carried under one contract so the trades coordinate with each other rather than with you.

See commercial projects

Tenant Fit-Ups

Taking a shell or a former tenant’s space and turning it into somewhere your business can open — on the schedule your lease commits you to.

New Commercial Construction

Ground-up builds managed from consultation through closeout, with one contractor accountable for the whole thing.

Renovations & Alterations

Reworking space that is already occupied, phased so the rest of the building keeps operating around us.

Building Maintenance

Ongoing upkeep and repairs for clients who would rather call one number than manage six trades.

Who we build for

Sectors we work in

We have worked for retail chains, independent restaurants, nonprofits and public clients — including the City of Nashua. The common thread is a client who needs the space open on a date they have already committed to.

  • Retail
  • Restaurant & food service
  • Office & professional
  • Nonprofit & community
  • Institutional
  • Municipal & public

Building commercially in southern New Hampshire since 1976.

Based in Nashua, working across Greater Nashua, Manchester Area, Souhegan Valley, I-93 Corridor, and Northern Massachusetts.