# Horizon Services (MD) LLC

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: Horizon Services (MD) LLC
- Alternative and DBA names: Shanahan's Heating and Cooling (Arlington Co); Shanahan's Heating and Cooling (Fairfax Co); Shanahan's Heating and Cooling (Loudoun Co); Snell Heating & Air Conditioning (Alexandria Ci); Snell Heating & Air Conditioning (Arlington Co); Snell Heating & Air Conditioning (Fairfax Co); Snell Heating & Air Conditioning (Loudoun Co); Snell Heating & Air Conditioning (Prince William Co)
- Entity type: LLC
- Original incorporation date: March 13, 2015
- Time in business: 11 years and 7 months
- Jurisdiction count: 3

## All known addresses

- 2607 N Rolling Rd Ste 201, Windsor Mill, MD 21244 (listed in Maryland)
- 320 Century Blvd, Wilmington, DE 19808 (listed in Virginia)

## Registered states

- [Delaware](https://index.baselayer.com/de/8050ea1b11664bf4)
- [Maryland](https://index.baselayer.com/md/4055c41b15b910a8): Foreign registration
- [Virginia](https://index.baselayer.com/va/6f5e216cf5356abd): Foreign registration

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/8050ea1b11664bf4)