
Construction
Services
Home remodeling, additions, and new construction from planning through 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 as your Central Oregon home builder. 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
- New home builds from the ground up
- Production & spec builds
- Foundation to finish
- Full trade coordination
- Permitting support

Remodeling
Kitchen and bathroom renovations through whole-home remodels. We open walls when the scope requires it, fix what is behind the finishes, and rebuild with materials suited to the job.
- Kitchen remodels
- Bathroom renovations
- Whole-home renovations
- Structural modifications
- Interior finish work

Additions
Room additions, master suites, second-story expansions, and covered entries tied into the existing structure. Materials, roof lines, and finishes are planned so new work reads as one home.
- Room additions
- Master suite expansions
- Second-story additions
- Covered entries
- Structural tie-ins

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

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.
