Contractors & Plumbers

Plumber Sketch

Maintenance and construction projects may require permits from multiple city agencies. The Dept. of Public Works is charged with the oversight of plumbing, driveways, roadway and excavation projects. For a detailed description of which city agency is responsible for the review of plans, the issuance of permits and site inspections, see the Builder Resource Guide.


Excepting necessary repairs and the replacement of fixtures, modifications to a building's plumbing requires a plumbing permit. See the Permitting page for more information  


Digging/excavation permits ensure that engineering and safety standards are met and reduce the risk of damaging buried infrastructure during excavation projects.

The City has records of the location of most but not all of the building sanitary service lines. Property owners and contractors may find the Sewer Service Cards are useful in locating sanitary sewer service lines during the planning stage of a project.

Before you dig: 

  • Notify the Department of Public Works by calling Dave Keets at 528-6379 x309 and
  • Contact Dig Safe by calling (888)344-7233 or by visiting the Dig Safe website.

(The City of Laconia is not a member of the Dig Safe network. To limit the risk of damaging buried infrastructure, both must be notified).