Fiberglass showers are popular because they’re durable, lightweight, and affordable. But over time, soap scum, hard water stains, and mildew can make them look dull and dirty. The good news is that with the right techniques and products, you can restore your shower to a sparkling clean finish. In this guide, you’ll learn how to clean a fiberglass shower step by step, what cleaning products to use (and avoid), and how to keep it shining longer.
What You’ll Need
- Soft sponge or microfiber cloth
- Non-abrasive scrub brush
- Baking soda
- White vinegar
- Dawn dish soap or mild cleaner
- Spray bottle
- Bucket of warm water
- Rubber gloves
Step-by-Step: How to Clean a Fiberglass Shower
- Rinse the surface
Start by rinsing the shower walls and floor with warm water to loosen soap and dirt. - Apply a cleaning solution
Mix equal parts vinegar and warm water in a spray bottle. Spray generously over walls, floor, and fixtures. Let sit for 10–15 minutes to dissolve soap scum. - Scrub with baking soda
Sprinkle baking soda on a damp sponge and gently scrub the fiberglass. Focus on stains, corners, and textured areas. Avoid abrasive pads that can scratch the surface. - Rinse thoroughly
Use warm water to rinse away loosened dirt and residue. A detachable shower head makes this step easier. - Tackle stubborn stains
For tough spots, make a paste with baking soda and dish soap. Apply, let sit for 15 minutes, then scrub with a soft brush. - Dry the surface
Wipe down with a microfiber cloth to prevent water spots and streaks.
What Cleaners to Avoid on Fiberglass
Fiberglass is durable but prone to scratches if cleaned with harsh tools. Avoid:
- Steel wool or abrasive scouring pads
- Powdered cleansers with grit
- Bleach (can cause yellowing over time)
- Harsh chemical drain cleaners near the fiberglass surface
How to Prevent Build-Up in Fiberglass Showers
- Rinse the shower after every use to wash away soap residue.
- Wipe walls with a squeegee or microfiber cloth to prevent water spots.
- Use a daily shower spray with diluted vinegar or commercial no-rinse cleaners.
- Ventilate the bathroom with a fan or open window to reduce mildew.
- Clean thoroughly once a week to prevent buildup from becoming stubborn.
Deep Cleaning Fiberglass Showers
Every few months, perform a deeper clean:
- Soak Shower Doors: Use vinegar to break down hard water deposits.
- Clean Grout and Caulk: Scrub gently with a toothbrush and mild cleaner to prevent mold growth.
- Polish Fiberglass: Apply a fiberglass-safe polish to restore shine and protect from staining.
Recommended Cleaning Products
Here are some high-quality cleaners and tools ($300+ premium kits and bundles for durability and convenience):
1. Rejuvenate Soap Scum Remover Kit
Non-abrasive cleaner designed for fiberglass, restores shine without scrubbing.
2. Drillbrush Fiberglass Shower Cleaning Kit
Drill-powered soft brushes make scrubbing large fiberglass surfaces fast and efficient.
3. Method Daily Shower Spray + Microfiber Bundle
Eco-friendly daily spray and microfiber cloths help prevent buildup.
4. Scrubbing Bubbles Mega Foamer
Effective foaming action lifts away soap scum without scratching fiberglass.
5. Mr. Clean Magic Eraser Bath Edition (Multi-Pack)
Safe for fiberglass, removes stains and grime with minimal effort.
Comparison Table
| Product | Type | Key Feature | Price Link |
|---|---|---|---|
| Rejuvenate Soap Scum Remover | Cleaner | Non-abrasive, shine-restoring | View |
| Drillbrush Kit | Brush Set | Drill-powered scrubbing | View |
| Method Daily Spray Bundle | Cleaner + Cloth | Eco-friendly daily cleaning | View |
| Scrubbing Bubbles Mega Foamer | Spray Cleaner | Foaming soap scum removal | View |
| Mr. Clean Magic Eraser Bath | Sponge | Gentle stain removal | View |
FAQ Section
- Can I use bleach on fiberglass showers?
It’s not recommended, as bleach may discolor fiberglass over time. - What is the easiest way to keep fiberglass clean?
Wipe down after each use and apply a daily shower spray to prevent buildup. - How do I remove yellow stains from fiberglass?
Use a paste of baking soda and dish soap, let sit, then scrub gently with a soft brush. - Can vinegar damage fiberglass?
No—diluted vinegar is safe and effective for soap scum and mineral deposits. - How often should I deep clean my fiberglass shower?
Once a month for best results, though daily maintenance can reduce deep cleaning needs.
Conclusion
Learning how to clean a fiberglass shower is simple when you use the right methods. Stick to non-abrasive cleaners, natural options like vinegar and baking soda, and soft tools to avoid scratching. A regular routine of rinsing, wiping, and weekly cleaning will keep your shower bright and fresh for years.
If you want to make the job even easier, consider premium cleaning kits like the Drillbrush system or Rejuvenate Soap Scum Remover. With consistent care, your fiberglass shower will stay sparkling clean and inviting every day.