Federal-Ready Construction, Built to Endure
Sierra Line Construction is a mission-driven construction firm delivering civil, federal, commercial, and emergency projects across California with clarity, speed, and zero compromise.

ABOUT SIERRA
Civil Work. Moral Structure. Zero Compromise.
Sierra Line Construction delivers public and private infrastructure projects with purpose and precision. Founded by Serge Zhilko—a first-generation builder with grit, faith, and field-tested leadership—we exist to raise the standard of California construction.
From sidewalks and sewer systems to federal builds and emergency work, our crews show up, finish strong, and never disappear when it gets hard.
We serve clients who are done gambling on flaky crews—and ready for a contractor who takes the mission personally.
Sierra Line Construction specializes in five categories of work—all built to spec, on schedule, and with the accountability high-stakes jobs demand.


We build private residences with the same rigor we bring to federal jobs. From concrete pads to luxury interiors, we construct custom homes for clients who expect clean craftsmanship, scheduling discipline, and a builder who treats the project like their own legacy.
Sidewalks, sewers, storm drains, roadways, grading, and underground utilities — we handle end-to-end scopes with crews trained in compliance, safety, and spec-perfect delivery. Whether you're managing a city upgrade or supporting a prime bid, our work is clean, accountable, and built to last.


We support government-funded developments, infrastructure scopes, and public works projects that demand documentation, discipline, and zero rework. From multi-home builds to sub-utility tie-ins, we bring bonded crews and bulletproof process to every federal job site.
Interior and exterior improvements for retail, office, and institutional facilities. We deliver build-outs, ADA upgrades, code compliance scopes, and infrastructure retrofits — all with professional staging, after-hours scheduling, and zero disruption to your operation.


When infrastructure fails or disaster strikes, Sierra steps in. We provide rapid-response repairs, site stabilization, barricades, board-ups, flood recovery, and urgent safety remediation to restore function — and protect public safety — fast.

Sidewalks, sewers, storm drains, roadways, grading, and underground utilities — we handle end-to-end scopes with crews trained in compliance, safety, and spec-perfect delivery. Whether you're managing a city upgrade or supporting a prime bid, our work is clean, accountable, and built to last.

We support government-funded developments, infrastructure scopes, and public works projects that demand documentation, discipline, and zero rework. From multi-home builds to sub-utility tie-ins, we bring bonded crews and bulletproof process to every federal job site.

Interior and exterior improvements for retail, office, and institutional facilities. We deliver build-outs, ADA upgrades, code compliance scopes, and infrastructure retrofits — all with professional staging, after-hours scheduling, and zero disruption to your operation.

When infrastructure fails or disaster strikes, Sierra steps in. We provide rapid-response repairs, site stabilization, barricades, board-ups, flood recovery, and urgent safety remediation to restore function — and protect public safety — fast.

We build private residences with the same rigor we bring to federal jobs. From concrete pads to luxury interiors, we construct custom homes for clients who expect clean craftsmanship, scheduling discipline, and a builder who treats the project like their own legacy.
WHY CLIENTS CHOOSE SIERRA
We Don’t Just Finish the Job—We Take Ownership.





More Than a Job Site. A Legacy in the Making.

Sierra isn’t just hiring workers—we’re building a crew of future leaders. We invest in your growth, train you right, and expect you to take pride in every pour, trench, or finish.
Laborers
Concrete Finishers
Pipe Layers
Equipment Operato
Competitive pay + per diem
Paid certifications & mentorship
Tools + PPE provided
No-nonsense, faith-driven culture
Sierra is prepped, licensed, and federally ready. Want to review our bonding, licensure, insurance, or federal qualifications? Get our latest capabilities packet delivered to your inbox.
CONTACT US
Let’s Build It Right—The First Time.
Have a project in mind? Submit your request below and our estimating team will reach out.

Whether you're managing public infrastructure, planning a federal bid, or scoping your next commercial job—we’re the crew that shows up and delivers.
We focus on five core areas: commercial construction, federal projects, civil infrastructure, emergency service work, and high-end custom homes. Each service is backed by licensed crews, bonded compliance, and an uncompromising commitment to doing things right.
Yes. We are CSLB licensed, bonded, and fully insured. Our crews are OSHA-certified, ID-badged, and trained for both public and federal job sites.
Absolutely. Our emergency service division is built for high-speed deployment — from securing damaged sites to accelerated infrastructure work where timelines are critical.
Yes. We often serve as a trusted subcontractor or scope lead for primes, GCs, and developers—especially when schedules are tight and reliability matters most.
We operate across California, with active coverage in Sacramento, San Joaquin, Contra Costa, Alameda, the Central Valley, and the Inland Empire including San Bernardino and Riverside counties.
Yes, but selectively. We take on custom homes and private infrastructure projects on a case-by-case basis—based on alignment with our schedule, scope, and quality standards.
Use the quick contact form on this page to submit your information, or click “Request a Quote.” Our estimating team will follow up within 24–48 hours.
Visit the “Careers” section above and click “Apply to Join the Crew.” We’re always looking for skilled, driven professionals ready to grow with us.
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