Excavation/Site Work
MTZ Construction provides professional excavation and site work services for residential, commercial, and civil projects throughout the Yakima Valley, Central Washington, the Tri-Cities, and the Seattle metropolitan area for qualifying projects. From site preparation and grading to trenching, utilities, and land clearing, we deliver dependable solutions that prepare your property.

General Excavation
MTZ Construction provides professional excavation services for residential, commercial, and civil projects. Whether preparing for a new foundation, removing soil, or excavating for utilities and other improvements, we use professional equipment to complete every project safely, efficiently, and with attention to detail.
Our Services Include:
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Foundation Excavation
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Basement Excavation
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Footing Excavation
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General Earthwork
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Rock & Boulder Removal
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Land Clearing
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Demolition Excavation
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Material Hauling
Site Preparation & Grading
Proper site preparation is the foundation of every successful construction project. MTZ Construction provides grading, soil preparation, and building pad construction to create stable, properly prepared sites ready for homes, shops, commercial buildings, parking lots, and other improvements.
Our Services Include:
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Building Pad Preparation
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Rough Grading
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Finish Grading
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Soil Compaction
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Land Clearing
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Gravel Base Installation
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Import & Export of Fill
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Site Cleanup


Utility Trenching
MTZ Construction provides excavation and trenching services for underground utility installations on residential, commercial, and civil projects. We excavate with precision to help prepare sites for utility systems while maintaining proper trench depths, grades, and safe working conditions.
Our Services Include:
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Water Line Trenching
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Sewer Line Trenching
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Storm Drain Trenching
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Electrical Conduit Trenching
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Gas Line Trenching
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Communication Conduit
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Utility Crossings
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Backfilling & Compaction
Drainage & Erosion Control
Effective drainage and erosion control help protect your property from water damage while improving long-term site performance. MTZ Construction installs drainage systems and erosion control solutions designed to properly manage runoff and help preserve the integrity of your property.
Our Services Include:
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French Drains
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Catch Basins
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Culvert Installation
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Dry Wells
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Swales
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Drainage Improvements
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Erosion Control
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Surface Water Management

Why choose us?
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Experienced Excavation & Site Work Specialists – From land clearing and site preparation to excavation, grading, utility trenching, and drainage solutions, we provide complete site work services for residential, commercial, and civil projects.
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Licensed, Bonded & Insured – MTZ Construction is a Washington licensed contractor committed to protecting our customers, employees, and every project we undertake.
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Project Management From Start to Finish – We coordinate every phase of your project, from planning and permitting to construction and final walkthrough, keeping you informed every step of the way.
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Quality Workmanship – We take pride in delivering durable, professionally constructed foundations backed by careful planning, quality materials, and attention to detail.
Service Areas
MTZ Construction proudly provides Asphalt services throughout the Yakima Valley and Central Washington, including Yakima, Selah, Union Gap, West Valley, Terrace Heights, Moxee, Zillah, Sunnyside, Ellensburg, Cle Elum, the Tri-Cities, and the Seattle metropolitan area for qualifying projects.
View our service areas →
Our Process
📞 Consultation & Free Estimate
We discuss your project, answer your questions, and evaluate the site to understand your goals and project requirements.
📋 Detailed Proposal
You'll receive a clear written proposal outlining the scope of work, materials, pricing, and project expectations.
📅 Planning & Scheduling
Once approved, we coordinate permits (when required), order materials, and schedule your project to keep everything on track.
🏗️ Construction
Our team completes the work using quality materials, proven construction practices, and clear communication throughout the project.
✅ Final Walkthrough
Before we consider the project complete, we perform a final walkthrough to ensure the work meets our quality standards and your expectations.
Quality Assurance - Warranty
MTZ Construction is committed to delivering foundations built for long-term performance and structural integrity. Every project is completed using quality materials, proven construction practices, and careful attention to detail. We stand behind our workmanship and address any workmanship-related concerns in accordance with our warranty terms. Manufacturer warranties remain the responsibility of the respective product manufacturers where applicable.
Financing Available
Flexible financing options are available for qualified customers. Contact us to learn more or visit our Financing page.
