We correct site drainage and grading problems with targeted repairs that protect structures, improve runoff control, and support future construction work.
“Thomas and his team completely transformed our home. The craftsmanship is exceptional.”
Free consultation & estimate
Our Drainage Approach
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.
We identify water flow issues and define the minimum reliable correction path.
Scope and sequencing are aligned to site constraints and related work.
Regrading and drainage work are verified for function before closeout.
Portland Drainage & Grading
N Portland
Drywell integration and site regrading as part of full landscape redesign with paver walkways and sod.
SE Portland
Site grading and drainage prep coordinated with large-scale hardscape and paver installation.
SW Portland
Drainage corrections and yard grading completed alongside whole-home renovation scope.
Our Guarantee
We stand behind our work. Every H&C project includes a written one-year workmanship warranty backed by our Oregon contractor bond and insurance.
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.
You receive a signed warranty document at closeout. No verbal promises. No fine-print surprises. The scope is clear before you sign off.
Report a defect in writing or by email within 30 days of discovery. We schedule an inspection, confirm the issue, and handle the repair.
Project Financing
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.
Financing is offered through U.S. Bank
Common Questions
Yes. Water pooling near foundations saturates soil, enters crawlspaces, and damages interior finishes. Fixing drainage before or during remodels prevents recurring repair costs.
Yes. Grading and drainage correction happen before surface hardscape installation. We coordinate both scopes on one timeline to avoid rework.
Stormwater management permits may be required for projects that change site drainage patterns or connect to the public system. We check requirements during scoping.
A French drain is a perforated pipe in a gravel trench that redirects subsurface water. It is used when surface regrading alone cannot control water near foundations or retaining walls.
Simple regrading runs $2,000 to $5,000. French drain systems with drywells typically range from $5,000 to $15,000 depending on site size and soil conditions.
From Our Crew
Portland remodeling is what we do every day. These guides cover the real decisions homeowners face: permits, costs, materials, and trade coordination.
All guides
Portland basement finishing guide from a contractor. Realistic costs, permit requirements, moisture management, and code compliance for 2026.
Read guide
Portland permit requirements explained by a contractor. What work needs a permit, what is exempt, and why skipping permits costs more long-term.
Read guide