Basement flooding in Lexington: what came in, and from where
A wet basement is three different problems that look the same at first. Rain through the walls, a sump that quit, or sewage up the floor drain. The source decides who you call and how the cleanup is done.
Referral service, not a contractor. Your request goes to an independent Lexington-area restoration company. We do not do the drying or repairs.
Three sources, three different jobs
Likely sourceGroundwater or surface runoff. In karst ground, the water table can rise fast after a soaking rain, especially when the soil was already wet.
Who firstNobody official. The city says water entering through basement walls, windows, sump pumps or gutters is usually a private-property issue. A restoration company handles the drying.
Likely sourcePump failure, a power cut, a stuck float, or a discharge line frozen or blocked outside.
Who firstIf the power is out, KU at 800-981-0600. Then a plumber for the pump and a restoration crew for the water.
Likely sourceA sewer backup, either a blockage in your own lateral or an overloaded public main.
Who firstLexCall 311, so the city can check its line. Then see the sewer backup page before you touch anything.
Your sump pump and Lexington's two sewers
Lexington runs two separate sewer systems. The city's sump pump page says rainwater should only go to the storm sewer. Sump pumps, downspouts, foundation drains, outside stairwell drains and driveway drains all count as rainwater.
Some older houses have a sump pump piped into the sanitary sewer instead. The city's point is blunt: it takes only four improperly connected sump pumps in a neighborhood to cause sewer overflows. Under its sump pump redirect program, if an inspection finds a pump tied to the sanitary line, the city will pay up to $3,000 for a plumber to disconnect it. If your basement has flooded more than once in heavy rain, it is worth asking LexCall about the program.
The redirect program fixes the pipe, not the water damage. Drying the basement, removing wet carpet and cleaning anything sewage reached is still a job for a restoration company.
What a basement cleanup usually involves
Pumping comes first when the water is deep; the water removal page explains the equipment. HomeAdvisor's national figures put removing one inch of clean water from a basement at around $500 to $1,500. Two feet of sewage backup starts around $2,800. After that comes the slow part: pulling up carpet and pad, cutting out the bottom of finished walls, and drying the slab. Concrete holds water for a long time. A basement slab can look dry on top and still read wet underneath. Expect several days of equipment in a finished basement, and ask that the crew confirm dryness with readings before anything new goes down.
If the basement is finished, ask about the insulation behind the drywall. Fiberglass batts that soaked up water are usually replaced. Rigid foam board against the foundation can often stay. Houses with a crawlspace under part of the floor need that space dried too; see water under the floor.
Why some basements flood when the creek is low
A University of Kentucky research note on a Kentucky Geological Survey project quotes hydrogeologist Charles Taylor: "Groundwater and surface water are highly interconnected in most parts of the Inner Bluegrass region and the role that karst plays in flood occurrence and severity has not been widely recognized or studied here." The three-year, $218,887 project is mapping where sinkhole and groundwater-induced flooding are most likely.
A KGS study of the Sinking Creek karst valley south of Lexington found that flooding was more likely, and higher, when the soil was already near saturation before a storm. In plain terms, the second big rain of a wet week is the dangerous one, and the flash flood page covers what that water does inside a house. February 2025 was the tenth wettest February on record at Lexington, according to the National Weather Service, and two months later the April 1 to 6 storms dropped 8.14 inches at Blue Grass Airport.
Low-effort fixes worth asking about
- Downspouts that empty right at the foundation. Extensions cost little.
- A sump with no battery backup. Power cuts and heavy rain often arrive together.
- A sump discharge line that freezes in January or ends next to the house.
- Window wells without covers that fill like buckets.
- For sewage, a backflow valve on the waste line. Lexington's preparedness site suggests consulting a plumber about one.
For bigger fixes like drainage tile or waterproofing, HomeGuide's national range for basement waterproofing is $6,000 to $18,000. Get more than one estimate in writing.
Basement questions
Is basement water from rain covered by my homeowners policy?
This site cannot answer that for your policy, and the referral line does not handle claims. FloodSmart, the federal flood insurance site, says most homeowners insurance does not cover flood damage, and Lexington's preparedness site notes that sewer overflow coverage usually is not part of regular homeowners insurance. Read your declarations page and ask your agent. For general questions, the Kentucky Department of Insurance takes calls at 800-595-6053. Whatever the answer, a record of photos, receipts and readings helps.
Should I pull up the wet carpet myself?
If the water was clean and you can do it safely, pulling up wet pad and getting it outside helps. Take photos first. If the water came from a floor drain or smells of sewage, leave it for a crew with protective gear.