Water in the house in Ellicott City: first steps
Ellicott City is an unincorporated community in Howard County and the county seat. At the 2020 census its census-designated place held 75,947 people. Those homes range from rowhouses on Main Street to subdivisions along US 40, and the water problems vary just as widely.
If water is coming in right now, close the main valve if a pipe is the cause, keep out of the water if it reaches outlets and call the 24/7 line. Describe the street, the source and which rooms are wet. Many Ellicott City calls begin with a basement, since the town sits in a valley.
A valley town that floods fast
The Patapsco River borders Ellicott City on the east and north and forms the Baltimore County line. The Tiber River forms the valley that Main Street follows. Water from the hills above arrives in the valley quickly, which is why the town is known for flash floods.
The National Weather Service reported that more than 6 inches of rain fell near Ellicott City in 90 minutes or less on July 30, 2016, and that the Patapsco rose just over 13 feet in 100 minutes. On May 27, 2018, 9 inches or more fell near and southwest of Old Town Ellicott City. These are the events that shape how residents here think about water.
| Where in town. | Typical water problem. | Page that covers it. |
|---|---|---|
| Main Street and the Historic District. | Flash flooding, groundwater, old plumbing. | Flood damage cleanup. |
| Hillside subdivisions. | Basement seepage, sump pump failures. | Basement cleanup. |
| US 40 and MD 100 corridor businesses. | Roof leaks, supply lines, sprinkler failures. | Commercial restoration. |
| Older homes anywhere. | Corroded supply lines and drain failures. | Burst pipe damage. |
Before we arrive in Ellicott City
Stop the source.
Close the main or the fixture valve. If the source is outside water, stay clear of the entry point.
Mind the electrical.
Keep out of water near outlets or the panel, and cut power only from a dry spot.
Lift what you can.
Raise furniture, rugs, electronics and paper onto blocks or counters.
Photograph first.
Take photos and video of the water and damaged items before moving them.
Note the access.
Tell the dispatcher about steep driveways, parking limits and stairs to the basement.
Keep the line free.
Stay reachable by phone so the crew can confirm timing.
What the work looks like here
Remove what cannot be saved.
Contaminated carpet, pad and drywall come out, especially after outside water.
Clean and sanitize.
Surfaces touched by floodwater or sewage are treated.
For flash-flood water, the ANSI/IICRC S500 standard calls for Category 3 handling, which means protective gear, removal of porous materials and cleaning before drying. That sets the pace of an Ellicott City flood job.
In Ellicott City and need help?
Call the 24/7 line and give your street and what is wet.
Howard County permits and utilities
Ellicott City is in Howard County, not Baltimore County. Howard County's Licenses and Permits Division handles building permits. If you are on public sewer, Howard County says to call its Bureau of Utilities before a plumber. The rules differ from the Baltimore County ones used for Catonsville, so confirm which office applies to your address.
Howard County has also been building flood mitigation. Its North Tunnel is under construction with substantial completion expected in Fall 2027, and the H-7, Quaker Mill and H-4 ponds are complete. The Maryland Avenue culvert is in final permitting and design. These projects do not remove the need to protect your own property.
Older buildings, newer subdivisions
Ellicott City's Historic District was designated in 1973, and the B and O station dates from 1830. Buildings that old often have stone foundations, original plumbing and shallow cellars. Newer houses use poured foundations and finished basements. Tell the dispatcher which kind of building you have, since it changes the drying plan.
The town has about 27,657 housing units, and our work covers nearby Oella, Ilchester and Daniels as well, which share the 21043 ZIP code. Neighbors we can also reach include Halethorpe, Windsor Mill, Gwynn Oak and Pikesville, though those are outside the ZIP codes listed above.
Ellicott City on the map
Cost and insurance
- Water category, since flood and sewage water cost more to clean.
- Rooms and floors affected.
- Materials removed and disposed of.
- Drying days and equipment.
- Rebuild scope after readings pass.
The Maryland Insurance Administration says homeowners policies generally do not cover flooding and that flood needs a separate policy. A suddenly burst pipe is generally covered for the water damage. Ask your insurer about your own policy. Your neighbor in Elkridge faces the same Howard County rules, and you can call the line for a real number.
Ellicott City questions
We list 21043, 21042 and 21041 above. 21043 also serves Oella, Ilchester and Daniels. If your address falls near a boundary, give it on the call and the dispatcher will confirm.
Yes. The line is open 24/7, and a dispatcher can plan a same-day response when a crew is available. Describe your street, the source and what is wet.
Howard County. Ellicott City is the Howard County seat, and the Patapsco River forms the Baltimore County line along its edge. Permits and sewer calls go to Howard County offices.
Stay out of the water if power is on, shut off what you can reach safely and call. Floodwater is usually treated as contaminated, so porous materials are normally removed.
Yes, within the ZIP codes listed. Tell the dispatcher about stone foundations, old plumbing or limited access when you call.