Company · CS1 Construction · Est. 2018

Built at scale.
Since 2018.

CS1 Construction is a multifamily, commercial and residential general contractor serving the Mid-Atlantic.

Who we are

CS1 Construction was founded in 2018 on a simple standard: do the work right, document everything, and never make a client chase their contractor. Eighteen years later, that standard has carried us through more than 2,400 projects — 5,000+ unit turns, 2,000+ roofing systems, and portfolios spanning Maryland, Virginia and Washington D.C.

How we work

Every project runs on the CS1 Method: five stages, written sign-offs at each gate, and one project manager from contract to keys. Every crew member is a background-checked, insured CS1 employee — no day labor, no anonymous subs.

  • 18 years in business · est. 2018
  • 2,400+ projects completed
  • Licensed and insured in eight states
  • GAF, IKO and CertainTeed certified
  • BBB A+ accredited · EPA Lead-Safe certified
  • 4.9★ average across 312 reviews

Whether you manage a 250-unit community or own a single-family home, you get the same crews, the same documentation, and the same promise — signed and dated.

Tell us about your project.

Four questions. Ninety seconds. A project manager responds within five business hours.

Step 1 of 4

What do you need?

  • No obligation, no pressure
  • PM responds within 5 hours
  • Free on-site assessment

What type of project?

RoofingReplace · Repair · Inspect
ExteriorSiding · Windows · Gutters
InteriorUnit Turns · Painting · Flooring
Something ElseHVAC · Solar · Multi-trade

Estimated budget?

Under $10KSingle-trade repair
$10K – $25KRoof, gutter, window package
$25K – $75KFull envelope or multi-room
$75K+Whole-property renovation

When do you want to start?

ASAPInside 30 days
1 – 3 MonthsPlanning ahead
3 – 6 MonthsBudgeting first
Just ExploringResearch phase

Your contact info

Request received.

A CS1 Construction project manager will reach out within five business hours. Check your inbox.

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