Completed drainage project • Stratham, New Hampshire

Downspout Drainage & Patio Restoration in Stratham, NH

A new buried downspout connection gave roof runoff an alternate route through an existing drainage system, while the patio grate drain remained in place at the basement slider.

The drainage concern

At this Stratham property, the homeowner reported that an existing drywell was underperforming. Broman Basement Solutions had previously installed a grate drain at the patio slider to intercept surface water before it reached the doorway. This follow-up project focused on giving gutter runoff a different path while keeping that patio drain in service.

How we connected the downspout

• Selectively lifted pavers and opened access at the downspout, beneath the patio, and along the lawn edge.
• Staged excavated material on plastic sheeting and marked the active work area with cones and caution tape.
• Installed a buried branch from the downspout and connected it to the existing downstream drainage line.
• Fitted an accessible leaf diverter at the downspout to help keep leaves and larger debris out of the buried piping.
• Backfilled the opened route, reinstated the patio pavers, and cleaned up the work area.

Keeping the slider drain in place

The roof downspout and patio grate remain separate collection points. The new branch joins the existing discharge route downstream, rather than directing roof runoff into the grate at the doorway. The original slider drain was retained as part of the layout.

From excavation to finished connection

Restoration and ongoing care

The final photographs show the pavers reinstated, the leaf diverter accessible at the wall, and the original grate still visible at the slider. Regular care includes clearing leaves from the diverter and grate and keeping the discharge outlet accessible. After substantial rainfall, check both inlets and the outlet for pooling, backup, or settlement.