Renovation service
Grouting & Regrouting
Black, crumbling or missing grout is not just ugly — it's where water gets behind your tiles. Regrouting cuts the old grout out and replaces it, so the bathroom reads as new for a fraction of a retile.
Signs it's due
Noticing any of these?
You don't need to diagnose it — that's our job. Send a photo or a short video on LINE or WhatsApp and a crew lead will tell you what you're dealing with before you book.

- Black or orange grout lines that cleaning no longer fixes
- Grout crumbling or missing between tiles, especially the shower floor
- Silicone around the bath, basin or shower peeling or mouldy
- A damp smell or stain on the wall or ceiling of the room below
- Tiles that sound hollow or a floor that stays wet for hours
How we do it
The RenoRova way
Cut out the old grout
Oscillating tool and hand rakes take every joint back to the tile edge — never grouting over the old, which fails within months.
Clean & check
Joints vacuumed and washed, loose or hollow tiles re-fixed, the shower floor fall and drain checked while everything is open.
Regrout & reseal
Cement grout with mould inhibitor as standard, or epoxy grout that never stains. Corners and fixtures resealed with sanitary silicone.
Cure & report
Grout sponged and polished, room cleaned, 12-hour cure before the shower is used. Before/after photos sent on LINE.
What's included
- Old grout fully cut out, not overlaid
- Loose tiles re-fixed, floor fall and drain checked
- Mould-resistant cement grout (epoxy upgrade available)
- All silicone joints cut out and resealed
- Photo report · 2-year guarantee against lifting or cracking
Every bathroom, plus the kitchen
The Regrout & Reseal home price covers every bathroom and the kitchen splashback in one visit — from ฿6,900 for a studio.
See home pricesGood to know
Common questions
Regrout or retile?
If the tiles are sound and you like them, regrout — a day and from ฿4,900 versus a week and ฿30,000+ for a retile. If tiles are cracked, hollow or you want a new look, retile. We'll tell you which honestly at the survey.
How long before I can use the shower?
12 hours for cement grout, 24 for epoxy. Regrouted in the morning, showering the next morning.
Is epoxy grout worth it?
In a shower that gets used daily, yes — it doesn't absorb water so it never blackens. It costs about 40% more and needs a skilled hand, which is why we quote it separately.
Free guides from our crews
Other things we do
Get a quote for grouting & regrouting
Fixed price in writing, a free survey if you want one, and a photo report when it's done.