Construction
Services
Full-scope construction from ground-breaking to final walkthrough. Licensed, bonded, and insured. CCB# 259188.
Residential Construction
From raw ground to move-in ready, Martinsen Construction manages every phase of new residential builds. We handle site prep, foundation, framing, systems, and finish work — coordinating all trades so you don't have to juggle a dozen contractors.
- Custom home construction
- Production & spec builds
- Foundation to finish
- Full trade coordination
- Permitting support
Additions
Whether you need a master suite, a garage conversion, or a full second story, we design and build additions that integrate seamlessly with your existing structure. No mismatched materials. No awkward transitions.
- Room additions
- Master suite expansions
- Covered patios & entries
- Garage additions
- Structural modifications
ADUs
Accessory Dwelling Units built to Oregon code requirements — detached, attached, or garage conversions — finished to the same standard as any primary residence. We handle permitting, construction, and final inspection.
- Detached ADUs
- Attached ADUs
- Garage conversions
- Oregon code compliance
- Permitting assistance
Siding
Central Oregon's climate is demanding. We install siding systems built to handle the heat, cold, and UV exposure of the high desert — using proven products installed with precision and flashed correctly.
- Fiber cement siding
- Lap siding
- Board & batten
- Full replacement or repair
- Moisture barrier & flashing
Remodeling
Kitchen gut renovations to complete interior overhauls. We strip to the studs where needed, address what's underneath, and rebuild with quality materials and clean execution. Minimal disruption, maximum quality.
- Kitchen remodels
- Bathroom renovations
- Whole-home renovations
- Structural modifications
- Interior finish work
Excavation
Ground-up construction starts with the ground itself. Our excavation work is precise, efficient, and timed to keep your project on schedule. We handle residential and light commercial excavation throughout Central Oregon.
- Foundation excavation
- Site grading & leveling
- Trenching
- Septic system excavation
- Utility trenching
Site Development
Site development is where projects begin — and where shortcuts show up later as problems. We clear, grade, and prepare land the right way: proper drainage, stable subgrade, and compliant access before a single wall goes up.
- Land clearing
- Access road construction
- Drainage & grading
- Erosion control
- Utility infrastructure prep
General Construction
Outbuildings, shops, garages, barns, commercial tenant improvements — if it's a construction project, we have the crew and equipment for it. Same quality standards. Every job.
- Detached garages & shops
- Agricultural structures
- Commercial tenant improvements
- Decks & outdoor structures
- Specialty builds
Not Sure What You Need?
Call or fill out the estimate form. We'll help you figure out the right scope for your project.