Permit-Ready Civil &
Structural Engineering
Built to Last
For builders, developers, and property owners across Washington, Idaho, and California. Established 1996. Based in Moses Lake since 2002.
Engineering Services
Structural and civil engineering under one roof. From foundation design to permit-ready drawings, we handle the full technical scope so your project moves forward.
Residential Engineering
Best for: Homes, additions, remodels, ADUs, and custom builds.
Practical engineering for foundations, framing, lateral systems, retaining walls, and permit-ready residential drawings.
Common Needs
- Foundation design
- Framing plans and beam sizing
- Lateral and seismic design
- Remodel or addition assessments
Commercial Engineering
Best for: Office, retail, restaurant, auto, industrial, and mixed-use buildings.
Structural and civil engineering for commercial projects that need clear drawings, buildable details, and permit-ready coordination.
Common Needs
- Structural system design
- Tenant improvement support
- Site development and grading
- Stormwater and erosion control
Multifamily Engineering
Best for: Apartments, mixed-use buildings, and multi-unit housing.
Coordinated structural and civil engineering for multifamily projects, including multi-story wood-frame construction and site infrastructure.
Common Needs
- Multi-story wood framing
- Shear wall and lateral design
- Foundation systems
- Site grading and stormwater planning
Not sure what type of engineering your project needs? Send us the plans and we will help define the scope, timeline, and fee estimate at no charge.
Send Your PlansLicensed Professional Engineer
All drawings are stamped and signed by John S. Lovrovich, PE, licensed in Washington, Idaho, and California.
Permit-Ready Drawing Sets
We deliver clear, stamped drawing sets with the detail building departments and contractors need to move your project forward.
Direct Team Coordination
We work directly with owners, architects, contractors, and building departments throughout the project lifecycle.
Local Grant County Experience
Based in Moses Lake since 2002, with deep regional knowledge of Grant County soils, local building departments, and the contractors who build throughout Central Washington.
Featured Projects
Civil and structural engineering across residential, commercial, industrial, and multifamily project types throughout Washington, Idaho, and California.
Crouse Street Apartments
Moses Lake, WAMulti-story wood-frame apartment building with structural and lateral system design.
Woodinville Whiskey Warehouse
Washington StateBarrel aging warehouse structural design supporting heavy stacked storage loads.
Moses Lake Honda
Moses Lake, WAAuto dealership showroom and service facility with structural design for large open spans.
Best Human Resource Solutions
Moses Lake, WAProfessional office building structural design with tenant improvement coordination.
Quincy Public Market
Quincy, WARetail and market hall building with structural and site civil engineering.
Michael's on the Lake
Moses Lake, WALakeside restaurant with stone facade, mixed-material structural design, and outdoor dining area.
Rock Top Burgers and Brew
Moses Lake, WAQuick-service restaurant building with kitchen, dining, and site planning support.
Beezly Vista Apartments
Quincy, WAMultifamily housing complex with wood-frame structural design and on-site amenities.
Storm Seeds Processing Facility
Grant County, WAAgricultural seed processing facility with structural design for heavy equipment loads.
Interstate Self Storage
Grant County, WAMulti-building self-storage facility with structural design and site civil engineering.
Vandal Healing Garden and Memorial
University of Idaho, Moscow, IDMemorial gazebo structural design for a campus healing garden honoring lost students.
Cacchiotti Orthodontics
Moses Lake, WAModern orthodontic office with curved roofline requiring custom structural detailing.
Family Auto
Moses Lake, WAAuto dealership building with structural design and site planning.
The JSL Difference
Four reasons clients in Moses Lake, Grant County, and across the Pacific Northwest trust JSL Engineering for their most important projects.
Experience-Led Engineering
With nearly 30 years of practice across Central and Eastern Washington, our team brings field-tested judgment built from decades of work on residential, commercial, and multifamily projects.
Structural and Civil Under One Roof
Most projects need both structural and civil expertise. JSL provides integrated engineering from foundation design to site grading, which reduces coordination complexity and keeps your project moving forward.
Practical, Buildable Designs
We engineer for real-world construction, not just paper calculations. Our drawings are clear, dimensioned, and built around the questions contractors actually ask in the field.
Clear Communication Throughout
You'll know where your project stands. We work directly with project owners, general contractors, architects, and building departments so communication stays clear throughout the project.
The Process
From your first inquiry to final permit-ready drawings. Here is what to expect when working with JSL Engineering.
Share Your Project Details
Call, email, or fill out the form below. Describe your project scope, location, and goals. Share any plans, sketches, or documents you have.
Define Scope and Timeline
We review your project and provide a clear proposal with engineering scope, estimated fee, and project schedule. Clear terms up front.
Engineering Design
We develop the engineering design, coordinate with your architect or contractor, and keep you informed at each key milestone.
Permit-Ready Drawings
You receive a stamped, permit-ready drawing set. We stay available to respond to any building department plan review comments.
The People Behind the Work
A focused, experienced team that treats every project with the care and attention it deserves.
John S. Lovrovich, PE
John established JSL Engineering in 1996. The firm has been based in Moses Lake since 2002. Licensed in WA, ID, and CA, he leads all engineering design and brings 30+ years of experience to every residential, commercial, and multifamily project.
Roger Chamberlain
Through Pen and Compass, Roger supports JSL Engineering with precise drafting and documentation services. He helps turn engineering designs into clear, permit-ready drawing sets for residential, commercial, and multifamily projects.
Nicholas Lovrovich
Nicholas manages financial operations, client billing, and business development for JSL. His finance background helps the firm run efficiently so the engineering team stays focused on delivering quality work.
Tom Lovrovich
Tom supports JSL's daily operations and client communications, helping maintain the reliable, responsive experience clients have come to expect from a firm with nearly three decades of engineering practice in Central Washington.
What Clients Say
"We've had the pleasure of working with JSL Engineering LLC, and we can't say enough good things about the experience… Looking forward to more projects together!"
"I recently purchased a commercial property that I'm developing in Moses Lake, and I can't recommend JSL Engineering LLC enough! The city had a lot of requirements, which could have been overwhelming, but JSL made the entire design process incredibly smooth and easy."
Common Questions
Everything you need to know about working with JSL Engineering. Have a question not listed here? Call or email us directly.
Call 509-989-4890JSL works on a wide range of projects including single-family homes, additions and remodels, apartment complexes, commercial buildings, office and retail spaces, restaurants, automotive dealerships, industrial and agricultural facilities, storage facilities, and civic structures across Washington, Idaho, and California.
JSL Engineering is licensed in Washington State, Idaho, and California. The majority of our work is in Central and Eastern Washington, including Moses Lake, Grant County, the Columbia Basin, and the Tri-Cities area. We also regularly serve clients in North Idaho and have completed projects in California.
Yes. While headquartered in Moses Lake, we regularly serve clients throughout Grant County, Eastern Washington, the Wenatchee Valley, the Tri-Cities region, and beyond. We are licensed in Washington, Idaho, and California and work with clients across all three states.
The process starts with a conversation about your project. We review the scope and provide a proposal with engineering scope, fee, and timeline. After authorization, we develop the engineering design and coordinate with your team. The deliverable is a complete set of stamped, permit-ready drawings. We stay available for plan review responses during the permit process.
Structural engineering focuses on the building itself: foundations, framing, beams, columns, shear walls, and the load-bearing systems that keep a structure safe. Civil engineering addresses the site: grading, drainage, utilities, access, and stormwater management. Many projects need both, and JSL provides both disciplines in-house.
Many projects need both. Architects handle design, floor plans, and occupancy-related building codes. Structural engineers handle the technical systems that make the structure safe. We work alongside architects regularly and can help coordinate the right team for your project.
Yes. Structural assessments are a regular part of our work. Whether you are adding to an existing home, converting a commercial space, or need a structural letter for a real estate transaction, we can evaluate existing conditions and provide the documentation you need.
Absolutely. We work directly with general contractors and construction teams on a regular basis. We respond to RFIs and field questions promptly, and we understand that contractors need practical, buildable drawings, not just calculations on paper.
Fill out the contact form below, call us at 509-989-4890, or email jslengineeringllc@outlook.com. Share a brief description of your project, location, and any plans or documents you have. We will follow up to discuss scope and provide a fee proposal.
We are available Monday through Friday, 9:00 AM to 5:00 PM Pacific Time. You can reach us by phone at 509-989-4890 or by email at jslengineeringllc@outlook.com. We aim to respond to all inquiries within one business day.
Ready to Start Your Project?
Tell us about your project and we will get back to you with next steps.
Send plans, sketches, or project details and we will follow up within one business day.
Tell Us About Your Project
Share your project details below. Send plans, sketches, or documents and we will follow up with next steps and a fee estimate.