Looking for a cast iron pipe plumber in Webster Groves, MO? Describe your project once and up to three licensed plumbers who work in Webster Groves and St. Louis County get back to you with a quote. It's free and there is no obligation.
Webster Groves is home to about 23,525 people (2024 Census Bureau estimate), a shrinking community (−2.0% since 2020). With 3,978 people per sq mi, it is a densely built-up area. Homes built before the mid-1970s often still have cast iron drains reaching the end of their life.
Webster Groves at a glance
- Population (Census Bureau estimate, 2024)
- 23,525 (−2.0% since 2020)
- Rank in Missouri
- 31st of 938 cities and towns
- Land area
- 5.9 sq mi
- Population density
- 3,978 people per sq mi (densely built-up)
- Type
- City (Webster Groves city)
- Main county
- St. Louis County
What to check before hiring in Webster Groves
- Camera first: a video inspection shows where and how badly the pipe is damaged.
- License and permit: in Missouri, drain work is done by a licensed plumber under a permit.
- Method: ask for both lining and replacement options when possible.
- Price drivers: length, slab access, tunneling, method and restoration.
Useful official resources
-
IAPMO: plumbing codes
Official information and guidance.
-
NASSCO: pipeline rehabilitation
Official information and guidance.
Services available in Webster Groves
-
Cast iron drain replacement
Replacement of cast iron drain lines with PVC, including under-slab work where needed.
-
Cast iron pipe lining
Rehabilitation of cast iron drains with an epoxy or cured-in-place liner.
Frequently asked questions in Webster Groves
How much does cast iron replacement cost in Webster Groves, MO?
It depends on the length, the slab and the method. Describe your home: plumbers who serve Webster Groves reply with a quote.
How long does it take?
From a few days for lining to a week or more with tunneling.
Can I stay at home?
Often yes, with limited plumbing use during the work.
Which licensed plumbers will contact me?
Up to three independent licensed plumbers who serve Webster Groves and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.