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Local Landscaping

Drainage Solutions in Portsmouth, NH

Quick answer

Local Landscaping lists 1 business offering drainage solutions in Portsmouth, NH, including Murtha Landscape Construction. Each one lists Portsmouth, NH as a service area.

Based on published listings as of .

Correction of standing water and erosion problems using grading, French drains, channel drains, and downspout extensions tied to site conditions.

Businesses offering drainage solutions in Portsmouth, NH

  • Verified
    Murtha Landscape Construction

    Portsmouth, NH

    Landscape DesignHardscapingIrrigation Installation & Repair+1 more

    Portsmouth landscape construction firm doing stone work, landscape design, irrigation systems, driveways, patios, and drainage for commercial and residential clients.

    CallWebsiteRequest quote

Exterior French drain cost in Portsmouth, NH

New Hampshire state-level estimates. Landscaping labor in New Hampshire pays $21.98/hour on average, 8% above the national average ($20.33), so prices below are national ranges adjusted for that difference. Use them to sanity-check quotes, not as a quote.

JobEstimate in New HampshireUnitUS rangeSource
Exterior French drain$10 - $37per linear ft$10 - $35HomeGuide2026

Cost calculator

Estimated cost in New Hampshire: $520 - $1,830 (50 linear feet at per linear ft)

Planning estimate only. Confirm with written quotes.

How these estimates are made
  1. National price ranges come from the published cost guides linked in each row.
  2. The New Hampshire wage index (1.08) is the state's mean hourly wage for landscaping and groundskeeping workers divided by the national mean, from the U.S. Bureau of Labor Statistics OEWS May 2025 release (source).
  3. Only the labor part of each job is adjusted: estimate = US price × (1 + labor share × (wage index − 1)). Labor shares are our assumptions, for example 55% for exterior french drain.
  4. Real prices also depend on lot size, access, materials and season. Get two or three written quotes.

Estimates compiled . Businesses listed on this site have not set or confirmed these prices.

Frequently asked questions

What is drainage solutions?

Correction of standing water and erosion problems using grading, French drains, channel drains, and downspout extensions tied to site conditions.

How much does drainage solutions cost in Portsmouth, NH?

Estimated $10 - $37 per linear ft in New Hampshire, based on HomeGuide national pricing adjusted for New Hampshire landscaping wages (8% above the national average). Get written quotes for an exact price.

How many drainage solutions providers are listed in Portsmouth, NH?

Local Landscaping lists 1 business offering drainage solutions in Portsmouth, NH.

How do I hire for drainage solutions in Portsmouth, NH?

Compare at least two or three written quotes for the same scope. Check that each business lists your area as a service area, ask about licensing and insurance where your state requires it, and confirm what is included (materials, cleanup, warranty) before you sign. Use the free quote request on Local Landscaping: describe the project once and it is matched only to businesses that list your area as a service area. You can also contact any listed business directly using the phone number or website on its profile.