OnSite General Contracting · Serving Chicago, IL · (773) 900-7007Portal sign-inService availability: Service availability varies by location and depends on crew and material availability; there are areas we may not be able to serve.Design-build: OnSite General Contracting is a design-build general contractor. Where architectural or engineering services are required, they are provided by independent licensed architects and professional engineers; we do not offer in-house architecture or engineering services.Trade licensing: Licensed trade work — including roofing, electrical, and plumbing — is performed and permitted by licensed subcontractors and trade partners under their own licenses and insurance.Estimates & pricing: Estimates are subject to on-site verification. Project pricing is provided in writing.