Hardie Board Soft Wash
Hardie board (fiber cement) siding is increasingly common on newer Tampa Bay construction — durable against Florida weather, but the caulked seams between boards and around trim are a real weak point under high pressure. From $400.
Hardie board (fiber cement) siding is increasingly common on newer Tampa Bay construction — durable against Florida weather, but the caulked seams between boards and around trim are a real weak point under high pressure. Manufacturer care guidance for fiber cement siding specifically recommends low-pressure cleaning; high-PSI water can force its way past caulking and behind the boards.
Our approach: We run our standard biodegradable soft wash chemistry, which is gentle enough for the caulked seams and factory finish while still lifting mildew and algae at the root. It's the same reasoning as vinyl and stucco — the seams are the vulnerability, not the board material itself.
Our 3-step process
Within 24 hours of your call. We walk the exterior, give you an exact written quote. No high-pressure sales — just a real number.
Low-pressure, under 500 PSI, with SoftWash Systems biodegradable solutions. Plants, pets, and pools protected with our rinse-before-and-after protocol. Most hardie board jobs take 2–5 hours.
Written guarantee — if anything isn't right after your cleaning, we come back and touch it up free. No hassle, no hard sell, just clean.
Other Siding Types
Stucco is the most common exterior finish in Tampa Bay, and its texture is exactly why it stays dirty — mildew and algae root down inside the porous surface instead of sitting on top where a rinse could lift them off.
From $400Vinyl siding is common across Tampa Bay's ranch-style and manufactured-home neighborhoods, and it fails a specific way under pressure: high-PSI water finds the seams between panels and forces its way behind the siding, where it sits against the wall sheathing and causes rot nobody notices until it's an expensive repair.
From $400See the full house washing service page with pricing breakdown, FAQs, and Tampa Bay coverage.
Main page →Questions
We don't recommend it, and it's not what fiber cement manufacturers advise either — high-pressure water can force its way past the caulking at board seams and around trim, leading to moisture behind the siding. Soft wash cleans effectively without that risk.
The same mildew and algae that grow on any exterior surface in Florida humidity — Hardie board just shows it clearly against its factory finish. Our biocide solution kills the growth at the root rather than just rinsing the surface.
No — that's specifically why we use low pressure. High-PSI water is what compromises caulked seams; our method cleans without driving water past them.
Most Hardie board homes run $400–$950 depending on square footage, since newer construction with this siding tends to run larger. Free instant quote within 24 hours.
Every 18–24 months for most homes, similar to vinyl. Homes under heavy tree canopy or facing north walls that stay shaded may need it closer to annually.
Every answer above is backed by our written Service Terms & 48-Hour Guarantee — the same terms on every estimate and invoice.
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Free 24-hour instant quote. Fully insured. 48-Hour Satisfaction Guarantee.
Insured · Payment due at time of service · Written Service Terms & 48-Hour Guarantee
