Green Construction Multi Services in Baltimore: Commercial and Residential Roofing with In-House Materials
Green Construction Multi Services is a full-service roofing contractor licensed and insured in Maryland, operating in the Baltimore area with the capacity to handle both residential replacement and commercial flat-roof systems, from initial inspection through warranty support.
What Green Construction Multi Services actually is
The company operates as a general contractor with roofing as its primary service line, distinguishing itself from single-trade roofing shops by offering concurrent interior and exterior work on larger projects. The business carries Maryland Home Improvement Commission (MHIC) licensing, required for any roofing work in the state. Crews handle asphalt shingle replacement on homes, TPO and EPDM membrane systems on commercial buildings, and partial repair work on both property types. The company also maintains an in-house materials warehouse, which means shorter lead times on component sourcing compared to contractors who order materials per project.
Materials, warranty, and the estimate process
Residential work centers on architectural asphalt shingles, typically 25- to 30-year products from manufacturers like Owens Corning or GAF, with labor-and-materials warranties running 10 years through the contractor and the manufacturer's own coverage lasting the stated shingle lifespan. Commercial flat roofing uses TPO single-ply membrane, common in the Baltimore region because it resists UV and temperature swings; warranties here are 15 to 20 years depending on membrane thickness and installation method.
Estimates are free and include a rooftop inspection. The company photographs existing conditions and provides a written scope that lists materials, labor, debris removal, and permit fees separately. For a typical Baltimore residential roof (1,500 to 2,000 square feet), labor plus materials for asphalt shingle replacement runs $8,000 to $14,000; larger commercial flat roofs or reroofing over existing membrane systems cost significantly more and require site-specific quotes. Permits in Baltimore City average $300 to $500 and are handled by the contractor.
How it compares to other Baltimore roofing options
Most Baltimore roofers fall into two camps: small, owner-operator crews that bid individual projects and larger commercial contractors that rarely touch residential work. Green Construction sits in the middle, accepting both home and business clients, which means homeowners get the benefit of a company that understands commercial code compliance (useful for multi-unit buildings) and businesses can work with a firm not overwhelmed by residential call volume. Smaller independent roofers may quote lower on basic shingle jobs, but they often charge for estimates and lack the materials inventory that Green Construction maintains. Larger commercial roofing firms typically refuse residential under 5,000 square feet and quote 40- to 50-day lead times. Green Construction's turnaround for residential work is typically 2 to 3 weeks from estimate to completion.
Insurance and licensing differ in consequence. Every Maryland roofing contractor must carry general liability and workers' compensation; verify that any bid includes proof of both. Green Construction carries both; many smaller operations do not, which shifts liability risk to the homeowner if an injury occurs during the job.
Who suits this contractor and who does not
Choose Green Construction for mid-to-large residential replacements, multi-unit residential buildings, or commercial flat-roof systems where you want a single point of contact managing both roofing and related structural or interior work. The company is also appropriate if you own a property with roof damage from storm and need documentation-ready estimates for insurance claims; the photography and written breakdowns satisfy adjuster requirements. The firm is less suitable for small repairs (one or two shingles, a single flashing leak) where a local handyman or smaller roofer will move faster and cost less.
The inspection and first visit
Call to schedule the free estimate. A crew member arrives with a ladder and camera; the visit lasts 20 to 40 minutes depending on roof pitch and accessibility. They walk the ridge, check for ponding on flat roofs, photograph damaged flashing, and examine interior evidence of leaks (staining, mold, sagging drywall). The written estimate arrives within 5 business days and includes a timeline. If you decide to proceed, you sign a contract that specifies start date, daily work hours, payment schedule (often 50 percent down, 50 percent upon completion), and the warranty terms.
Licensing, logistics, and scheduling
Maryland roofing contractors must renew MHIC licensing annually; ask for the current certificate. The company operates year-round in Baltimore, though autumn and spring book faster than winter. Permit timelines in Baltimore City range from 3 to 7 business days; Green Construction secures these after you sign the contract. Parking and staging happen on-site; crews typically work 7 a.m. to 4 p.m. on residential jobs to minimize neighborhood impact, and debris removal is included in the quoted price.
Green Construction's combination of Maryland licensing, in-house materials, and dual residential-commercial experience makes it a reliable choice for Baltimore homeowners and property managers who need a roofing contractor with accountability and documented compliance.

