Typical Florida installed cost for whole-house water filter: $1,000–$5,000 — a curated 2026 planning range, not a bid. The most accurate figure for your home comes from a verified local pro (free, below).
A rotten-egg smell in Florida water usually means sulfur — hydrogen sulfide gas, common in well water — which filtration removes; it's a water-quality issue, not usually a health emergency.
Plan it — not an emergency.
Common causes:
• Hydrogen sulfide (sulfur) in well water
• Sulfur bacteria in the well or water heater
• A water heater anode reacting with the water
• Organic matter in the water source
• Masking the smell instead of treating the source
• Assuming it's the well when it's only the hot water
• No water test to identify the cause
• Water-treatment equipment itself isn't a licensed trade, but the plumbing or electrical tie-ins can be — verify a licensed plumber or electrician for those connections
Why does my water smell like rotten eggs?
That sulfur smell is usually hydrogen sulfide gas, common in Florida well water, or sulfur bacteria in the well or water heater. If only the hot water smells, the water heater is often the source. A water test pinpoints it, and filtration or treatment removes it. It's a quality and nuisance issue more than a health emergency.
How do I get rid of the sulfur smell in my water?
Treatment matched to the cause — a whole-house filter or aeration system for hydrogen sulfide in the supply, or servicing the water heater if that's the source. The right fix depends on a water test. Masking the smell doesn't last; addressing where the sulfur comes from is what clears it for good.
Whole-house water filter: $1,000–$5,000 (typical ~$2,500)
Sediment, carbon, or specialty filtration; water quality and system size drive it.
Curated Florida 2026 estimate — installed cost for a typical FL single-family home, not a bid.
This trade spans two license realities in Florida. Drilling, constructing, or repairing a water well is licensed by the regional Water Management District. Installing water-treatment equipment — softeners, filters, reverse-osmosis — is generally not a state-licensed trade on its own, though the plumbing and electrical connections can require a licensed plumber or electrician. Verify the credential for the specific work.
Different scopes here carry different permit and license needs — ask who holds which before work starts.
Basis: FL Stat. 373 (well construction, Water Management District) · treatment equipment largely unregulated.
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Covered: Lee · Pinellas · Sarasota · Charlotte · Hillsborough · Manatee | As of 2026-08-21 | Local numbers appear only when the sample is large enough to protect privacy.