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Kohler Free-Standing Cast Iron Tub Install in Angwin CA

Finished free-standing cast iron tub with a matte black floor-mount filler against wood-look tile

What was installed?

A Kohler free-standing cast iron tub in Angwin, with a matte black floor-mount tub filler and a hand-held shower attachment.

Why is cast iron different to fit?

It is far heavier than acrylic, so the floor and the setting have to take the load, and there is no flexing it into position once it is placed.

What makes a floor-mount filler demanding?

The supply lines and drain have to be roughed in at precise locations before the floor is finished. There is no adjustment afterwards without opening it back up.

Kohler Free-Standing Cast Iron Tub Install in Angwin CA

What was this bathroom built around?

Some bathrooms are purely functional. And then there are bathrooms built around a completely different idea - one where the whole point is to slow down. That's exactly what we were going for with this install in Angwin, CA.

What was installed?

We put in a Kohler free-standing cast iron tub paired with a matte black floor-mount tub filler and a hand-held shower attachment. Cast iron is a different animal compared to acrylic. It's heavier, it holds heat longer, and it has a solid, substantial feel that you notice the second you step into it. It's the kind of fixture that earns its place in a room.

How does the hardware work with the tile?

The matte black hardware ties everything together without fighting for attention. Against the light gray tile surround and the wood-look floor tile, those black fixtures pop in just the right way. The integrated deck-mount overflow on the tub is clean and minimal - no clutter, nothing out of place.

What makes a free-standing tub install tricky?

Getting a free-standing tub right is more than just setting it in the middle of a room. The supply lines and drain have to be roughed in at precise locations, the floor-mount filler needs to be perfectly positioned relative to the tub, and everything has to be leak-tested before the finish work goes in. That's where the plumbing side of a bathroom remodel really matters.

What other fixture work do you take on?

This is the kind of work we do - fixture installation that's done clean, done right, and built to last. Whether it's a tub, a custom shower setup, or a full bathroom remodel plumbing package, the details are what separate a good install from a great one.

This job is an example of fixture installation (faucets, sinks, toilets & showers) in Angwin.

Kohler Free-Standing Cast Iron Tub Install in Angwin CA — Avanté Plumbing
Kohler Free-Standing Cast Iron Tub Install in Angwin CA — Avanté Plumbing

Common questions

Questions about work like this

What did this job involve?

Some bathrooms are purely functional. And then there are bathrooms built around a completely different idea - one where the whole point is to slow down. That's exactly what we were going for with this install in Angwin, CA.

Why do staged remodels catch people out in Marin?

Because several district thresholds are cumulative rather than per-project. Sanitary District No. 5 counts work over $50,000 within three years, and Sanitary District No. 2 in Corte Madera and Belvedere counts roughly $50,000 over three years. Three separate $20,000 jobs inside that window reach the threshold exactly as a single large one does, which surprises owners who remodel a room at a time.

Does a bathroom remodel need a plumbing permit?

If the piping is altered, moved or extended, yes. And in parts of Marin the remodel itself triggers more than a building permit: Ross Valley Sanitary District's lateral programme is triggered by a remodel over $75,000 or by a remodel that adds a bathroom, and Sanitary District No. 5 in Tiburon by $50,000 of work counted cumulatively over three years.

Last updated: August 2026 · Written by Karl D'Angelo, CSLB #841938 (C-36 Plumbing), plumbing in Sonoma & Marin since 2004.

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