Reseal UK Complete Shower Aftercare Guide
How to keep your restored shower looking immaculate for years
Congratulations on your newly restored shower. The work carried out — whether a reseal, a deep clean or a full restoration — has transformed your shower back to its best. How long it stays that way depends almost entirely on how you look after it from here.
This guide covers everything you need to know — from the first 24 hours after your appointment to the long-term habits that will keep your shower looking great and your sealant lasting as long as possible.
What's in this guide
The first 24 hours — critical
Do not use your shower for at least 24 hours after a reseal.
This is the single most important piece of advice in this entire guide. Fresh silicone sealant requires a minimum of 24 hours to cure fully before it comes into contact with water.
Using the shower before the silicone has cured risks:
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Pulling the sealant away from the surface before it has fully bonded
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Water penetrating the joint before the seal is complete
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Premature failure that voids your 12 month guarantee
If possible, leaving it 48 hours before the first use gives the sealant the best possible start — particularly in bathrooms with limited ventilation where curing takes longer.
Keep the bathroom ventilated during curing. Open a window or run the extractor fan to allow fresh air to circulate. Good airflow speeds up the curing process and improves the final bond.
Avoid touching the sealant lines during the curing period. Even light pressure can leave finger marks or distort the finish before the silicone has set firm.
Ventilation — the single biggest factor
Poor ventilation is the number one cause of premature sealant failure and mould return in UK bathrooms. No sealant — however high quality — will remain mould-free indefinitely in a poorly ventilated bathroom. Getting ventilation right is more important than any cleaning product or routine.
Your extractor fan should run during every shower and for a minimum of 15 minutes afterwards. The best setup is a fan on a humidity sensor or timer — these run automatically without you having to remember. If your current fan is more than 5–7 years old it's likely operating below its original capacity and worth replacing. A decent extractor fan costs £30–£80 and is one of the most cost-effective home improvements you can make.
If you don't have an extractor fan, open the bathroom window during and after every shower and leave it open for at least 20–30 minutes afterwards.
After every shower, leave the shower door or screen open. Closing it traps moisture against the sealant and grout — exactly the conditions mould needs to thrive.
Signs your ventilation isn't adequate:
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Condensation remaining on mirrors and tiles more than 30 minutes after showering
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A persistent musty smell in the bathroom
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Mould appearing on the ceiling or walls near the shower
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Sealant discolouring within 12 months of replacement
If any of these apply, improving ventilation should be your first priority.
Daily habits that make a dramatic difference
These five habits take less than two minutes combined and will extend the life of your shower restoration significantly.
Rinse the shower down after every use. Run cold water over the tiles, tray and sealant lines for 30 seconds after you finish showering. This removes soap residue, body fat deposits and shampoo before they dry onto the surfaces and penetrate the grout.
Squeegee or wipe the tiles after showering. A rubber squeegee across the tiles and screen takes 30 seconds and removes the majority of water before it can leave limescale deposits or create the damp conditions mould needs.
In hard water areas like Kent, Surrey and the South East this is particularly valuable. Brabantia or Vikan squeegees are available from most UK hardware stores and Amazon for £5–£15.
Leave the shower door or screen open after use. Simply leave it open — it makes a meaningful difference to how quickly the shower dries out.
Don't leave wet flannels, loofahs or shower poufs in the shower. These retain moisture and create damp spots directly against the tiles and sealant. Hang them outside the shower after use.
Switch from bar soap to liquid soap or shower gel. Bar soap leaves significantly more residue than liquid products — a white filmy deposit that builds up on tiles, grout and the screen. Switching to liquid soap is a small change that noticeably reduces cleaning frequency.
Weekly cleaning — what to use and what to avoid
Safe cleaning products
The key rule is simple: mild, pH-neutral products only on sealant lines.
Method Bathroom Cleaner — widely available in Sainsbury's, Tesco, Waitrose and online. Genuinely mild, safe on silicone and grout. One of the best off-the-shelf options for regular weekly cleaning.
Ecover Bathroom Cleaner — a genuinely mild eco-friendly option available in most UK supermarkets. Effective on light soap scum and limescale without degrading sealant.
Astonish Bathroom Cleaner — available from Wilko, B&M and most pound shops. Surprisingly effective for the price and mild enough for regular use on sealant.
Elbow Grease All Purpose Degreaser (diluted) — available widely in UK supermarkets and pound shops. At a 1:10 dilution with water it's an effective gentle cleaner for tiles and grout.
Simple shower spray routine:
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Spray the tiles, grout and screen with your chosen mild cleaner
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Leave for 2–3 minutes to dwell
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Wipe with a soft microfibre cloth — never abrasive scourers or wire wool
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Rinse with clean water
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Dry with a squeegee or cloth
Products to avoid on silicone sealant
Bleach-based cleaners — Flash with bleach, Domestos, Dettol Power and Pure, and most white bathroom sprays contain bleach or sodium hypochlorite. These degrade the surface of silicone sealant over time, making it increasingly porous and more susceptible to the mould you're trying to prevent.
Harpic and toilet bowl cleaners — highly acidic and not intended for shower surfaces. Keep well away from sealant and grout.
Cillit Bang (original formulation) — contains powerful acids and alkalis that are effective on limescale but damaging to silicone and grout over time.
Abrasive cream cleaners — products like Cif Cream and Ajax physically scratch tile glazing over time. Never use on sealant.
White vinegar directly on sealant — vinegar's acidity gradually degrades silicone sealant and etches natural stone tiles. Fine as a very occasional treatment on the screen or tiles but avoid applying directly to sealant lines.
Dealing with limescale — especially important in hard water areas
If you live in Kent, Surrey, Sussex or South London you are almost certainly in a hard water area. Limescale is the white chalky deposit left behind when hard water evaporates on surfaces. Left unchecked it builds up progressively and becomes increasingly difficult to remove.
Prevention
Daily squeegeeing after showering is by far the most effective prevention. It removes the water before it can evaporate and leave mineral deposits.
Treating light limescale (weekly)
Viakal — available from most UK supermarkets. The most effective consumer limescale remover available in the UK. Use it on the shower screen, tiles and shower head — but keep it away from sealant lines as it is acidic.
HG Calcium Lime Rust Remover — available from hardware stores and Amazon. Stronger than Viakal and effective on persistent limescale. Same rule applies — keep away from sealant lines.
White vinegar solution on tiles and screen — a 50/50 mix of white vinegar and water in a spray bottle is reasonably effective on light to moderate limescale on tiles and screens. Spray on, leave for 5–10 minutes, scrub with a soft brush and rinse. Avoid applying directly to sealant lines.
Lemon juice — undiluted lemon juice applied to limescale deposits on tiles or the screen with a cloth is a gentle natural descaler. Leave for 5–10 minutes and rinse. Effective on light deposits and completely safe on tiles. Avoid sealant lines.
Treating the shower head
Fill a freezer bag with undiluted white vinegar, place it over the shower head so the head is submerged, secure with an elastic band and leave overnight. Rinse thoroughly in the morning. The limescale dissolves completely with no scrubbing required.
Do this once a month in hard water areas.
Cleaning grout — keeping it looking fresh
Grout is porous and will re-stain over time regardless of how well it was cleaned and sealed. The key is catching staining before it becomes embedded.
Weekly grout maintenance
A soft grout brush used weekly with your regular mild bathroom cleaner is all you need to keep grout lines looking fresh between professional cleans.
Work the brush along the grout lines rather than scrubbing the tiles — this gets the cleaner into the joint where staining develops.
Grout brushes are available from most hardware stores and pound shops for £1–£3.
Monthly grout treatment
Astonish Mould and Mildew Remover — available from Wilko, B&M and Home Bargains. Spray directly onto grout lines, leave for 5 minutes and scrub with a grout brush before rinsing. Very effective on light mould staining and safe for regular use.
HG Grout Cleaner — available from B&Q, Screwfix, Robert Dyas and Amazon. One of the most effective consumer grout cleaners available in the UK. Apply, leave to dwell, scrub and rinse.
Bicarbonate of soda paste (home remedy) — mix bicarbonate of soda with a small amount of water to form a thick paste.
Apply directly to grout lines, leave for 10 minutes and scrub with a grout brush before rinsing.
Mildly abrasive in the best possible way — safe on grout and surprisingly effective on light to moderate staining. Available from any supermarket for under £1.
Bicarbonate of soda and white vinegar (home remedy) — apply the bicarbonate paste to the grout first, then spray white vinegar over the top. The fizzing reaction helps lift embedded dirt from within the grout. Leave for 5–10 minutes, scrub and rinse.
Effective on moderately stained grout as a monthly treatment.
Do not use this on natural stone tiles — the acid in the vinegar can etch the surface.
What to do if mould returns to grout
Some mould return in grout is normal, particularly in high-use showers or bathrooms with limited ventilation. If mould appears on grout lines:
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Apply Astonish Mould and Mildew Remover or HG Mould Spray directly to the affected grout
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Leave for 10–15 minutes
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Scrub with a grout brush
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Rinse thoroughly
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Improve ventilation to slow the return
If mould has penetrated deeply into the grout and cannot be removed by surface cleaning, a professional deep clean is the next step.
Cleaning the shower screen
Shower screens are often the most neglected part of the shower and in hard water areas they can develop a heavy limescale buildup that significantly reduces their transparency.
Weekly screen clean
A microfibre cloth with a small amount of Method or Ecover bathroom spray wiped across the screen weekly keeps soap scum from building up. Finish with a dry microfibre cloth or squeegee to prevent water marks.
Monthly deep clean for the screen
Elbow Grease and white vinegar method — spray undiluted Elbow Grease All Purpose Cleaner onto the screen, leave for 3 minutes, then spray white vinegar on top.
The combination dissolves both soap scum and limescale simultaneously. Wipe with a microfibre cloth and rinse thoroughly.
Bar Keepers Friend (powder) — available from Robert Dyas, John Lewis, Lakeland and Amazon. One of the best products available in the UK for heavy soap scum and limescale on glass shower screens. Make a paste with water, apply with a damp cloth, rub gently in circular motions and rinse.
Transforms cloudy shower screens back to near-new clarity.
Cleaning the shower tray
Shower trays accumulate soap scum, body fat deposits and in hard water areas a layer of limescale that makes them progressively harder to clean.
Weekly: spray with mild bathroom cleaner, leave 2–3 minutes, wipe with a soft cloth and rinse. Pay particular attention to the area around the waste where deposits concentrate.
Monthly: apply a paste of bicarbonate of soda to the tray, leave for 10 minutes and scrub with a soft brush. For limescale around the waste, apply Viakal or white vinegar, leave for the recommended time and scrub before rinsing.
For acrylic and resin trays — never use abrasive cleaners or scouring pads. These scratch the surface permanently. Mild cleaners and soft cloths only.
For ceramic and stone resin trays — more durable but abrasive scourers should still be avoided.
Maintaining your sealant long term
What good sealant should look like
Healthy silicone sealant should be:
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Consistent in colour throughout with no dark spots
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Flexible when gently pressed — not hard or crumbly
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Firmly adhered to both surfaces with no gaps or lifting edges
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Free from cracks or splits along the line
Inspect your sealant every 6 months — just a quick visual check when you're cleaning. Catching early signs of deterioration means a simple reseal rather than a more extensive job.
Signs it's time to call us
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Any black or dark grey staining that won't clean off — mould has penetrated the sealant and cleaning won't fix it
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Any section of sealant pulling away from the wall or tray
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Visible cracks or splits in the sealant line
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The sealant feels hard, crumbly or has lost its flexibility
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A section has come away completely leaving an open joint
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You notice a damp patch on the wall or ceiling near the shower
Don't ignore these signs. Water is getting through every time you shower and the longer it's left the more expensive the damage becomes.
How long should professional sealant last?
With good aftercare — regular mild cleaning, adequate ventilation and daily rinsing — professional-grade fungicidal bathroom silicone should last 3–5 years in normal use.
In hard water areas with heavy daily use, 3 years is a more realistic expectation.
The customers who consistently get 5 or more years are the ones who squeegee the shower daily, ventilate well and never use bleach-based products on the sealant.
Home remedy quick reference
Light limescale on tiles — white vinegar and water 50/50. Spray, leave 5 minutes, scrub, rinse.
Limescale on shower head — undiluted white vinegar. Submerge overnight in a bag secured with an elastic band, rinse thoroughly in the morning.
Light grout staining — bicarbonate of soda paste. Apply, leave 10 minutes, scrub with a grout brush, rinse.
Moderate grout mould — bicarbonate of soda paste followed by white vinegar spray. Leave 5–10 minutes, scrub, rinse. Not suitable for natural stone tiles.
Soap scum on screen — lemon juice applied with a cloth. Leave 5 minutes, rinse.
Water marks on screen — white vinegar on a microfibre cloth. Wipe and buff dry.
General daily clean — washing up liquid and warm water. Wipe down and rinse.
Recommended products at a glance
Daily mild cleaner — Method Bathroom Spray. Available from Sainsbury's, Tesco, Waitrose and Amazon.
Eco daily cleaner — Ecover Bathroom Spray. Available from most supermarkets.
Budget daily cleaner — Astonish Bathroom Cleaner. Available from Wilko, B&M and pound shops.
Grout cleaning — HG Grout Cleaner. Available from B&Q, Screwfix and Amazon.
Mould on grout — Astonish Mould and Mildew Remover. Available from Wilko, B&M and Home Bargains.
Limescale on tiles and screen — Viakal. Available from most supermarkets.
Heavy limescale — HG Calcium Lime Rust Remover. Available from hardware stores and Amazon.
Heavy soap scum on screen — Bar Keepers Friend. Available from Robert Dyas, Lakeland and Amazon.
Squeegee — Brabantia or Vikan. Available from hardware stores and Amazon.
Grout brush — any soft grout brush. Available from hardware stores and pound shops for £1–£3.
A final word
The investment you've made in your shower today will last significantly longer with a little consistent care. None of the habits in this guide are time-consuming — the daily rinse and squeegee takes under a minute, the weekly clean takes five minutes and the monthly treatment takes ten.
The showers that come back to us within 18 months are almost always the ones where ventilation is poor and bleach-based products have been used on the sealant. The showers that look immaculate three or four years later are the ones where the homeowner followed the simple habits in this guide.
If you have any questions about your shower or notice anything that concerns you, don't hesitate to get in touch.
We're always happy to advise — and if something needs attention, catching it early is always better for both your shower and your wallet.