Grout is the most visible ageing part of any tiled surface. Tiles themselves barely change over decades, but the lines between them darken, stain and crumble — and suddenly a five-year-old bathroom looks twenty. The frustrating part is that most grout problems were decided at installation: the wrong grout for the location, joints left unsealed, or waterproofing skipped beneath.
The central decision is cement grout versus epoxy grout. Cement grout is cheap, forgiving to apply, and porous — it absorbs stains and needs periodic sealing. Epoxy grout is essentially stain-proof and waterproof, but it costs several times more, sets fast, and punishes poor workmanship with a permanent haze. Choosing between them room by room is the highest-value grout decision a homeowner makes, and it is made once — at installation or at re-grouting — then lived with for years.
This guide compares the grout types honestly, gives the stain-removal methods that actually work (and the ones that damage), explains when cleaning stops being enough and re-grouting starts, and prices the work.
Epoxy versus cement grout: the honest comparison
| Parameter | Cement grout | Epoxy grout |
|---|---|---|
| What it is | Cement, fillers and pigments — hardens by hydration | Resin + hardener — hardens by chemical reaction |
| Stain resistance | Porous — absorbs oils, turmeric, soap scum | Near stain-proof — the reason it exists |
| Water resistance | Absorbs water; needs sealing in wet areas | Waterproof by nature |
| Application | Forgiving; DIY-friendly; long working time | Fast-setting; needs skilled, quick hands; haze if mishandled |
| Cost | The budget default | Several times the material cost of cement grout |
| Repairability | Easy to rake out and redo | Very hard — removal is labour-intensive |
| Best for | Dry living areas, bedrooms, low-stain zones | Kitchens, bathrooms, counters — anywhere stains and water live |
| Keep away from | Kitchen counters and shower floors without sealing | DIY first attempts; hire applicators with epoxy experience |
Stain removal: what works, what damages
Start gentle and escalate only as needed — the grout is softer than the tile, and aggressive methods erode it. Warm water with dish soap and a stiff brush handles fresh grime. A baking-soda paste, left to sit and then scrubbed, lifts most household staining from cement grout. Oxygen-based bleach solutions handle deep organic stains (mould, food) without the harshness of chlorine. Steam cleaning works well on both grout types because it uses heat, not chemistry.
Two cautions. Acidic cleaners (vinegar, descalers) etch natural stone tiles and can weaken cement grout with repeated use — fine occasionally on vitrified tiles, risky on marble and on grout you want to keep. And chlorine bleach whitens grout unevenly and degrades sealers; it is a last resort, not a routine. After any deep clean of cement grout, reseal it — cleaning strips the old sealer, and unsealed grout restains within weeks.
When cleaning stops being enough
Re-grout when the grout itself is failing, not just dirty: crumbling or powdery joints, cracks along the grout lines, grout missing in patches, or staining so deep that cleaning only lightens it temporarily. These are material failures — no cleaner rebuilds a joint that has lost its body. Re-grouting is dramatically cheaper than retiling, and a fresh grout job makes old tiles look new.
One judgement call: widespread grout failure in a wet area often signals movement or waterproofing trouble beneath, not just tired grout. If new grout cracks again within months, or if tiles sound hollow when tapped, the problem is under the tiles — adhesive or membrane — and re-grouting is treating the symptom. Investigate before repeating.
What grout work costs
Cleaning is labour-light — a day's work covers a full bathroom, and the materials are household items. Re-grouting is priced by area and joint condition: raking out, cleaning, regrouting and sponging a bathroom is a skilled-labour job of a day or two. Epoxy grout multiplies the material cost several times over cement grout, which is why it is specified room by room — kitchen and bathrooms in epoxy, dry areas in cement — rather than everywhere.
For context on the surfaces around the grout: ceramic wall tiles list at ₹40–80 per sq ft, vitrified floor tiles at ₹60–120+, and tile-laying labour at ₹25–40 per sq ft. Against a full retiling, re-grouting is a fraction — which is why it is the highest-return refresh in maintenance.
| Item | Indicative cost (Oct 2026) |
|---|---|
| Deep grout cleaning (labour, per bathroom) | Small labour job — household materials |
| Cement grout re-grouting (labour + material) | Modest — priced by area and joint condition |
| Epoxy grout upgrade | Material several times cement grout; skilled application essential |
| Grout sealer (for cement grout) | Small material cost — the step that protects the cleaning |
| Ceramic wall tiles (context) | ₹40–80 per sq ft |
| Vitrified floor tiles (context) | ₹60–120+ per sq ft |
| Tile-laying labour (context) | ₹25–40 per sq ft |
Room-by-room verdicts
- Kitchens: epoxy grout — oil, turmeric and food stains are exactly what it defeats; cement grout here stains permanently.
- Bathroom floors and shower walls: epoxy grout; soap scum and constant water punish cement grout.
- Living areas and bedrooms: cement grout is fine — low stains, easy future repair, budget-friendly.
- Balconies and outdoors: epoxy or quality cement with sealer; thermal movement cracks weak grout.
- Natural stone tiles: avoid acidic cleaners entirely; use pH-neutral cleaners and seal both stone and grout.
- Re-grout, don't retile, when: joints are failing but tiles are sound and well-bonded — the highest-return refresh.
- Investigate beneath when: new grout cracks within months or tiles sound hollow — the failure is under the tiles.
Sources & standards
- Tile thickness ≈ 8–10 mm for vitrified floor tiles — commonly cited Morbi trade data
- Joint widths and rake depths — commonly cited Indian tiling trade practice
- IndiaMART / TradeIndia dealer listings, October 2026 — ceramic tiles ₹40–80, vitrified ₹60–120+, tile-laying ₹25–40 per sq ft (indicative)
