About us
Business highlights
10 years of trusted experience
Amenities
Free Estimates
YesWarranties
YesAccepted payment methods
Reviews
4.927 Reviews
Showing 51-27 of 27 reviews
Contact information
1640 Boro Place, Fourth Floor, Mclean, VA 22102
https://cosmobuilders.com/Service hours
Monday:
9:00 AM - 6:00 PMTuesday:
9:00 AM - 7:00 PMWednesday:
9:00 AM - 7:00 PMThursday:
9:00 AM - 6:00 PMFriday:
10:00 AM - 5:00 PMSaturday:
1:00 AM - 4:00 PMSunday:
ClosedLicensing
Licensed*
Trade License Number
2705171011
Trade License Locale
VA
Trade License Expiration
03/31/2026
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
patio builder,
home builder,
garage builder,
home remodeling contractor,
basement contractor,
deck company,
room remodeling
FAQ
Monday: 9:00 AM - 6:00 PM
Tuesday: 9:00 AM - 7:00 PM
Wednesday: 9:00 AM - 7:00 PM
Thursday: 9:00 AM - 6:00 PM
Friday: 10:00 AM - 5:00 PM
Saturday: 1:00 AM - 4:00 PM
Sunday: Closed
Cosmo Builders, LLC accepts the following forms of payment: CreditCard
Yes, Cosmo Builders, LLC offers free project estimates.
No, Cosmo Builders, LLC does not offer eco-friendly accreditations.
No, Cosmo Builders, LLC does not offer a senior discount.
No, Cosmo Builders, LLC does not offer emergency services.
Yes, Cosmo Builders, LLC offers warranties.
Contact information
1640 Boro Place, Fourth Floor, Mclean, VA 22102
https://cosmobuilders.com/Service hours
Monday:
9:00 AM - 6:00 PMTuesday:
9:00 AM - 7:00 PMWednesday:
9:00 AM - 7:00 PMThursday:
9:00 AM - 6:00 PMFriday:
10:00 AM - 5:00 PMSaturday:
1:00 AM - 4:00 PMSunday:
Closed