Bathroom with a walk-in shower and light wood vanity
Hawaiʻi C-5 License CT-37515

Bathroom Renovation on Oʻahu — Your Private Sanctuary.

Our bathroom renovations turn aging bathrooms across Oʻahu into spacious, timeless, highly functional spaces — walk-in showers, primary-bath configurations, and moisture-smart material choices for the island climate.

Hawaiʻi C-5 License CT-37515 BBB Rating: A+ Kapolei Design Showroom Weekdays · 8 a.m.–3 p.m. Veteran-Owned & Operated

Luxury or necessity?

More than an eyesore — moisture and safety matter.

For mature Oʻahu homes, a neglected bathroom hides silent liabilities behind aging walls and old floor tiles. A professional renovation resolves them.

  • Moisture, mold & bacteria. Failed waterproofing and deteriorated grout in Hawaii's humid climate.
  • Water waste. Outdated fixtures replaced with modern eco-conscious infrastructure.
  • Slip & fall safety. Slip-resistant porcelain and zero-threshold transitions.
White vanity, quartz counter, round mirror, and slat-wood wallExample B
Oak vanity with a tile counterExample A

Design secrets for Oʻahu layouts

Maximizing space, light, and flow.

Color & space psychology

Light, nude tones to open small baths; deep gray-green and natural wood for spa-calm master suites.

Precision lighting

Engineered to 250–300 lumens per square meter, balanced with natural light for safe, clear wet rooms.

Moisture-resistant walls

Anti-microbial backing boards, premium tile, and tile-over-tile techniques on stable substrates.

A predictable construction timeline

No surprises. Just disciplined progress.

Standard baths · 7–15 days

Coordinated fixture replacement, clean tiling, and straightforward updates.

Complex master suites · 3–4 weeks

Full teardowns to framing, subfloor remediation, and custom tiling configurations.

Final inspection

Turnkey walkthrough confirming waterproofing, fit, and finish.

Questions, answered

Bathroom renovation questions, answered

How much does a bathroom remodel cost on Oʻahu?

Bathroom remodels start at $25,000 and run through the same three tiers — Beautiful, Impressive, Exquisite — so the scope is clear from the first conversation. The $250 on-site consultation is credited back to your project on contract.

Do you do tub-to-shower conversions?

Yes — a tub-to-shower conversion is one of our most common bathroom projects. We remove the old tub, rebuild and waterproof the wet area, and set a walk-in shower sized to your space. It's a strong upgrade for daily use and for making a bathroom work better for every age in the household.

How long does a bathroom remodel take?

A single bathroom typically takes a couple of weeks to a few, depending on your tier and whether we're relocating plumbing or reframing the wet wall. As with every job, you get a real start date that we hold — no vague "we'll get to it eventually."

How do you handle moisture and waterproofing in Hawaiʻi's humidity?

Island humidity punishes shortcuts. The wet-area plan calls for the right waterproofing system, drainage approach, and moisture-resistant materials for the specific room. Any regulated plumbing or electrical work is assigned to the appropriately licensed trade.

Can you build a curbless or aging-in-place bathroom?

Yes. We build curbless walk-in showers, add blocking for grab bars, and widen access so a bathroom stays safe and usable for kupuna or anyone planning to age in place. We design it to look like a clean, modern bathroom — not a hospital room.

Start your project

Tell us about your project.

Kitchen, bathroom, or whole-home remodel — fill out the short form and a project lead will follow up. Our C-5 remodeling team respects your home and keeps the plan clear, with regulated trades and permit responsibilities documented before work begins.

Follow-up during showroom hours
  • Hawaiʻi C-5 License CT-37515
  • BBB Rating: A+
  • Kapolei Design Showroom
  • Insured · Veteran-Owned

Tell us about your remodel.

No long application and no budget gate. Share the basics and the team will follow up.

Prefer to talk? Call (808) 900-7540 — showroom hours are Monday–Friday, 8:00 a.m.–3:00 p.m.

Call a Project Lead: (808) 900-7540