Cast iron sump pump replacement for KC metro homes: old pump out, cast iron unit set in your existing pit with a new check valve, full test cycle before we leave. $1,500–$2,800 installed, battery backup option available. Pair it with a buried discharge line ($300–$700) so the new pump stops recycling the same water — the #1 thing that kills KC sump pumps early.
The pump is half the fix. Where the water goes is the other half.
Most sump pumps in Kansas City die young for one reason: they never stop running. The discharge dumps beside the foundation, clay sends the water right back to the pit, and a pump built for occasional duty cycles thousands of extra times a season. Premier Gutters KC replaces failed pumps with cast iron units built for that workload — and because we're a drainage contractor, we fix the water path at the same time, so the new pump gets to rest.
Builder-grade plastic pumps overheat and die in Kansas City's wet springs. We replace them with cast iron — the housing wicks heat off the motor — and test the whole system before we leave.
We don't sell pumps to people who need pipe. Before quoting a replacement, we look at why the old pump failed — because if the discharge recycles water back to the pit, a new pump inherits the same death sentence.
Cast iron sump pump replacement runs $1,500–$2,800 installed — old pump removed, cast iron unit set and connected in your existing pit, new check valve, full test cycle. Battery backup option quoted with the job. Add a buried exterior discharge line for $300–$700 — run 5–30 feet to a daylight outlet or pop-up emitter at continuous downhill slope — and the new pump stops recycling water on day one. Free assessments.
Our published price is $1,500-$2,800 to replace a failed pump with a cast iron unit, including removal of the old pump, the new pump set and connected in your existing pit, a new check valve, and a full test cycle. A battery backup option is available and quoted with the job. Pairing it with a buried exterior discharge line ($300-$700) is the single best thing you can do for the new pump's lifespan.
Heat. A sump pump dies by overheating, and cast iron wicks heat away from the motor far better than the thermoplastic housings on builder-grade pumps. In KC clay, where pumps cycle constantly through wet springs, the housing material is often the difference between a 3-year pump and a 10-year pump.
Typically 7-10 years - much less if the pump short-cycles. The biggest lifespan killer we see in Kansas City isn't the pump at all: it's a discharge line that dumps water right beside the foundation, so the same water returns to the pit and the pump runs on a loop, thousands of extra cycles a season.
Maybe not. If the discharge dumps within a few feet of the house, the pump may be recycling the same water - fix the discharge path and a healthy pump's runtime drops dramatically. If the pump is also old, rattling, or tripping the breaker, replace it and bury the discharge line in the same visit. The free assessment tells you which case you have; we don't sell pumps to people who need pipe.
For a finished basement, almost always yes. KC's worst rain arrives with the storms most likely to knock out power - exactly when the pit fills fastest. A battery backup keeps the pit pumping through an outage. We quote it as an option with every replacement, and it's your call.
The buried run that keeps the new pump from recycling water — the natural pairing.
When the sump runs constantly, the yard usually needs collection too.
Roof water at the foundation is often why the pit fills in the first place.
The full menu — one design, one crew, one warranty.
Free assessments across the KC metro. If the pump's fine and the pipe's the problem, we'll tell you — that fix is cheaper anyway.
