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Portland drainage and grading services by H&C Design-Build

Portland Drainage & Grading

We correct site drainage and grading problems with targeted repairs that protect structures, improve runoff control, and support future construction work.

Craftsman Warranty Financing Available

“Thomas and his team completely transformed our home. The craftsmanship is exceptional.”

Sarah & Mark J. NW Portland

Our Drainage Approach

Protect the structure. Control the water.

Portland averages over 150 days of measurable rain per year. Poor grading and missing drainage send that water toward foundations, crawlspaces, and retaining walls where it causes damage that compounds over time.

We identify the actual flow path, set correction scope to the minimum reliable fix, and verify function before closeout. No upsells, no guesswork.

Drainage Diagnosis
1
Stage 01

Drainage Diagnosis

We identify water flow issues and define the minimum reliable correction path.

  • 1 Site grading, downspout routing, and subsurface conditions assessed on-site
  • 2 Water flow patterns identified during wet-season conditions where possible
  • 3 Correction options scoped to match severity and budget
Correction Planning
2
Stage 02

Correction Planning

Scope and sequencing are aligned to site constraints and related work.

  • 1 French drain, drywell, or regrading scope set based on site diagnosis
  • 2 Sequencing coordinated with any related landscape or structural work
  • 3 Material and equipment needs confirmed before mobilization
Implementation and Verification
3
Stage 03

Implementation and Verification

Regrading and drainage work are verified for function before closeout.

  • 1 Grading corrections and drainage installation executed per plan
  • 2 Water flow tested and verified before backfill and surface restoration
  • 3 Final site condition documented and reviewed at walkthrough

Portland Drainage & Grading

Recent Drainage & Grading Projects

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N Willis Landscaping remodel
Drainage & Regrading

N Willis Landscaping

N Portland

Drywell integration and site regrading as part of full landscape redesign with paver walkways and sod.

View Project

Project Financing

Finance your project without delaying the work.

H&C Design-Build now offers financing options through U.S. Bank Avvance. If you are evaluating a remodel, you can review pre-approval options before final scope decisions are locked.

  • Apply before design and permit decisions are finalized
  • Get pre-approval visibility before you commit to full scope
  • Keep kitchen, bath, structural, and exterior work on one timeline
Discuss financing options Call (971) 409-5926

Financing is offered through U.S. Bank

U.S. Bank Avvance financing pre-approval banner (gray version, cropped)

Our Guarantee

1-Year Craftsman Warranty

We stand behind our work. Every H&C project includes a written one-year workmanship warranty backed by our Oregon contractor bond and insurance.

Full-Year Workmanship Coverage

Every joint, cut, and connection we make is backed for 12 months from substantial completion. If our work fails, we fix it at no cost to you.

Written Warranty on Every Project

You receive a signed warranty document at closeout. No verbal promises. No fine-print surprises. The scope is clear before you sign off.

Responsive Claim Process

Report a defect in writing or by email within 30 days of discovery. We schedule an inspection, confirm the issue, and handle the repair.

What the Warranty Covers

  • Covers all workmanship performed by our crews under the original contract scope
  • Repair or replacement at our discretion for valid claims
  • Does not cover owner-supplied materials, normal wear, or unauthorized modifications
  • Manufacturer warranties on products and materials remain separate and are passed through to you
  • Oregon CCB dispute resolution available if any disagreement arises
OR CCB #251405 Licensed · Bonded · Insured in Oregon

From Our Crew

We write about
what we build.

Portland remodeling is what we do every day. These guides cover the real decisions homeowners face: permits, costs, materials, and trade coordination.

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Feb 2026 8 min read

Portland Basement Finishing: 2026 Cost and Permit Guide

Portland basement finishing guide from a contractor. Realistic costs, permit requirements, moisture management, and code compliance for 2026.

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Jan 2026 8 min read

Portland Building Permits: What You Need and What It Costs

Portland permit requirements explained by a contractor. What work needs a permit, what is exempt, and why skipping permits costs more long-term.

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