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OR CCB# 214445

971-800-0150
Tortoise Construction LLC logo

On Budget. On Schedule. No Surprises.

About Tortoise Construction LLC

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Most builders focus on construction. We focus on construction and risk management.

Tortoise Construction LLC is a fully licensed, bonded, and insured design-build remodeling firm based in Milwaukie, Oregon, serving SE Portland, NE Portland, Lake Oswego, and the Portland Metro.

We specialize in the projects with the most at stake: home additions, second-story additions, ADUs, kitchen remodels, and whole-home transformations. Projects where the wrong contractor means a blown budget, a stalled schedule, and months of stress.

Our owner Mike Jeske spent ten years in IT before construction. He builds systems, not just rooms. That background is why Tortoise has a 5-step pre-construction process that locks every trade price, every finish, and every scope detail before demolition begins, and why we can offer a No Change Order Guarantee that no other Portland-area remodeler makes credibly.

BuildZoom score 106, top 7% of 62,733 Oregon contractors. 5.0 Angi rating. Oregon CCB #214445. $1M general liability through Lloyds of London.

Want to see how we work? Check out our latest projects or get your free Project Risk Snapshot™, a 30-minute call that identifies the biggest risks to your remodel budget and timeline before you commit.

Why Tortoise Exists

74% of homeowners have renovation regrets (Houzz 2026). The reasons are always the same: costs came in higher than expected, timelines ran long, decisions couldn't be undone. We built Tortoise to solve that problem, and we structured the whole company around three commitments.

Budget Control
We lock every number, every trade price, every finish, every scope detail, before demo begins. You know the exact cost of your remodel before we touch a wall.
Schedule Integrity
Nationally, only 25% of remodels finish on schedule (Houzz 2026). We don't start construction until the plan is complete, that's why our timelines hold.
Equity Protection
We protect your equity, not just your square footage. Every recommendation is filtered through your home's long-term value, neighborhood fit, and resale potential.
The No Change Order Guarantee
A fixed price before we break ground. Not an estimate, a guarantee, in writing, backed by our 5-step pre-construction process.
Get Your Project Risk Snapshot™

How We Eliminate Budget Risk Before We Break Ground

The Tortoise 5-Step Pre-Construction Process

Most contractors give you a rough number and start construction. We spend the weeks before demo locking every variable, so by Step 5, you have a fixed price backed by a written guarantee. Know the numbers before demo. That's how the No Change Order Guarantee works.

SEE OUR FULL PROCESS

  1. 1. Measure Meeting

    We document every dimension of your space. Accurate measurements are the foundation of an accurate price.

  2. 2. Scope & Layout Meetings

    We define exactly what your project includes, and what it doesn't. Scope creep stops here, before it starts.

  3. 3. Selections

    Every finish, fixture, and material is chosen before construction begins. No mid-project decisions that blow the budget.

  4. 4. Trades Day Confirmation

    Every subcontractor price is locked before we break ground. This is the step most contractors skip. We don't.

  5. 5. Final Review & Fixed Price

    You approve the complete plan and receive a fixed price in writing, backed by our No Change Order Guarantee.

Know the exact cost of your remodel before we break ground.

Book Your Project Risk Snapshot™