North West Domestic · UK Commercial
Repairs & Resealing across the North West & UK.
Failed or tired sealant removed and replaced in bathrooms, kitchens, windows, doors and external joints across Liverpool, St Helens, Warrington and the North West. We check the cause first and do not patch over old material.
- Clean, Precision Trade Workmanship
- 5.0★ on Google (54 Verified Reviews)
- Old Grout & Sealant Always Removed First
- 100% In-House Trained Specialists
Repairs & Resealing
Precision Finish
Trade Grade5.0 / 5 on Google
54 reviews · Rated "Great price"
Old Sealant Removed
Stripped back & cleaned first
5-Year Guarantee
Workmanship & adhesion guarantee
Fair & Fixed Price
Quick quote by phone or message
Site Qualifications & Accreditations
Certified for domestic homes, commercial sites, powered access and high-rise rope access
Who You Are Dealing With
Deal directly with Liam.From first quote to finished job.
No call centres. No subcontracted strangers. From your first WhatsApp photo quote to the final tooled bead of silicone, Director Liam Harrison oversees your job personally. For specialist tile restoration, Liam works alongside family craftsmen with over 22 years on the tools—ensuring every joint is immaculate.
Liam
· Lead Mastic Specialist · 8 Years ExperienceYour direct point of contact from quote to completion
22+ Years Trade Experience
· Grouting & ResealingTrusted family & senior specialists on the tools alongside Liam
Certified & Fully Insured
· Domestic & CommercialCSCS Gold, SSSTS, IPAF, PASMA, IRATA & NVQ L3 · £5m/£10m insured
Liam · Next Level Sealants
Silicone & Regrouting
UK Commercial Sites“Friendly, tidy and clearly takes a huge amount of pride in his work.”
See how colour-matched silicone looks on your surfaces.
1. Tap What You Need Sealing:
Tap any area to test surfaces & colours
When to Call Us
Signs Sealant Needs Replacing
Black mould and mildew trapped inside silicone
01Scrubbing or bleaching cannot reach mould spores embedded in the polymer matrix. We mechanically slice away 100% of the infested bead, sterilise the joint bed with biocidal washes, and install fresh anti-fungal sanitary silicone.
Water leaking from shower trays into ceilings below
02Failed perimeter seals allow litres of shower spray to track into subfloors and ceilings. We install elastomeric silicone with ±25% movement tolerance that flexes under water and body weight without peeling.
Cracked, shrunken, or crumbling external frame mastic
03UV radiation and winter freezing destroy cheap builder's caulk. We rake out external frame gaps, fit closed-cell foam backing rod, and tool low-modulus neutral silicone that lasts 15 to 20 years.
Sealant peeling away like wet tape (adhesion loss)
04Applying new silicone over old damp sealant destroys adhesion. We fix the root cause with surgical mechanical stripping, solvent degreasing, and sterile application.
Scope of Work
What We Can Repair
When joint sealant cracks, shrinks, peels away, or fills with black mould, water doesn't wait—it tracks behind tiles, rots subfloors, and causes ceiling plasterboard to collapse below. At Next Level Sealants, we never skim fresh silicone over failed rubber. We mechanically slice away 100% of degraded mastic back to bare substrate, decontaminate the joint with hospital-grade biocides, and wipe clean with fast-flashing solvent degreasers. Using commercial-grade anti-fungal silicones and low-modulus architectural weatherseals, we restore complete watertight protection backed by our written 5-Year Domestic Guarantee with free return visits.
- 100% mechanical strip-out of old, mouldy or cracked silicone01
- Guaranteed watertight seal stopping active ceiling leaks02
- Hospital-grade biocidal decontamination of joint channels03
- Commercial-grade anti-fungal sanitary & architectural sealants04
- External window, door, and cladding mastic repairs05
- Bath, shower tray, wet-room and kitchen worktop resealing06
- Backed by our written 5-Year Domestic Guarantee07
- Exact fixed price confirmed from WhatsApp photos08
Our Process
How We Reseal It
Diagnostic Joint Inspection
We examine the failed joint to determine the root cause—movement stress, mould contamination, or moisture ingress—confirming the exact remedial product required.
100% Mechanical Strip-Out
Every trace of old rubber is physically sliced out down to clean, bare substrate. We never cap or hide failed sealant.
Biocidal Sterilisation & Solvent Clean
The joint channel is decontaminated with anti-fungal washes and wiped clean with fast-flashing solvent degreasers to ensure maximum chemical bonding.
Extrusion & Tooling with 5-Year Guarantee
Specified trade-grade silicone is extruded and hand-tooled with calibrated spatulas, backed by our written 5-Year Domestic Guarantee against peeling or leaks.
Proof of Work
Completed Projects
Genuine examples of our sealant and mastic work across the North West and the UK.
Domestic Works
Luxury bathroom and wet-room reseals, tile regrouting, kitchen silicone, herringbone floor perimeters, windows and renovations across Liverpool, St Helens, Warrington and the North West.
Aintree Racecourse
Internal and external sealant package on Aintree Racecourse's multi-million pound renovation, including the Jockeys' Changing Room, commercial wet rooms, hospitality areas and external window perimeters.
Whitecross Vets
Internal and external sealant application. Window frames, weather-sealing around external service penetrations and sanitary sealing throughout.
Verified Feedback
Customer Reviews
“Liam did a great job sealing our bathroom. It was left in a mess by the previous owners but Liam came and swiftly cut out the old sealant and resealed it beautifully in only a couple of hours. The bathroom has now been transformed! Would highly recommend and really reasonable price.”
Chavonne Graham
Google review
“Liam did such a brilliant job on our new bathroom. We’d had the silicone done already but weren’t happy with the finish, and he came in and sorted it all out for us. It looks so much neater now and has made a massive difference to the room. Really friendly, tidy and clearly knows what he’s doing. We’ll definitely be getting him back once the shower screen and toilet are fitted. Would 100% recommend 👍 thank you so much Liam.”
Vicky Lawrenson
Google review
Reasonable price
“Super happy with the work done on my bathroom. Re-sealed everything and it looks miles better, really neat finish and no mess left behind. Liam was friendly, turned up when he said he would and got it all done quickly 😁”
jas
Google review
FAQ
Common Questions
Have another question about your job? Send a photo on WhatsApp or use our quote form and we will help straight away.
Can failed sealant cause severe water damage?+
Yes. Over 85% of domestic ceiling leaks beneath bathrooms stem from failed shower or bath perimeter silicone rather than burst copper pipes. Replacing failed sealant stops active leaks immediately, preventing rotted joists and collapsed ceilings.
Do you replace old sealant completely or just skim over it?+
We completely remove 100% of old sealant down to bare tile, acrylic, or brickwork. Skimming or capping new silicone over old silicone fails within weeks because fresh silicone cannot bond to cured rubber or soap scum.
Does your resealing work come with a guarantee?+
Yes. All domestic silicone repairs and reseals are backed by our written 5-Year Domestic Guarantee. If any joint peels, lifts, or leaks under normal use, we return and replace it 100% free of charge.
Do you carry out rapid turnaround repairs for landlords and letting agents?+
Yes. We regularly handle tenant turnarounds and urgent repair callouts across Liverpool, the Wirral, Manchester, and the North West, providing fixed invoice pricing and fast digital quotes.
More Services
Related Services
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Domestic Sealant
Window, door and external mastic resealing for homeowners, landlords and small builders across Liverpool, the Wirral and Merseyside. Send photos or a postcode for a free quote.
View ServiceSilicone Sealing & Tile Regrouting Across the North West
Bathrooms & Kitchens
Precision bathroom, shower and kitchen silicone resealing across Liverpool, St Helens, Warrington, Wigan, the Wirral and the North West. We mechanically slice out 100% of black mouldy sealant, solvent-clean the joint, and hand-tool trade-grade sanitary silicone backed by our written 5-Year Guarantee.
View ServiceBathroom, Shower & Kitchen Grout Renewal Across the North West
Tile Regrouting
High quality bathroom, shower and kitchen tile regrouting across Liverpool, the Wirral, Chester, Cheshire, Warrington, St Helens and Greater Manchester, delivered by our in-house grouting specialist with over 22 years of trade experience. Degraded grout raked out, polymer waterproof grout repointed, and perimeter joints resealed with sanitary silicone.
View ServiceWhere We Work
Areas We Cover for Repairs & Resealing
Based in Liverpool, we cover Merseyside, the Wirral and the North West daily, with nationwide UK coverage for commercial and construction mastic packages.
Every Domestic Reseal Backed by Our 5-Year Guarantee.
We do not cap fresh silicone over old sealant. Because we cut out all failed material, solvent clean the joint and apply professional trade silicone, our sealant stays bonded. If it ever fails under normal domestic use, we return and replace it 100% free of charge.
Applies to all domestic bathroom, shower, kitchen, window, door, and floor perimeter silicone resealing (excludes rigid cementitious tile grout). Commercial projects carry standard 12-month DLP.
Why Next Level Can Guarantee Adhesion
Most handymen charge £50 to pump fresh silicone over mouldy old beads in 15 minutes. It peels in 3 months.
Full Mechanical Strip-Out
Every failed millimeter is removed right back to bare tile, acrylic, and frame.
Solvent Degreasing & Dry Prep
Silicone can only bond to chemically clean surfaces. We scrub soap scum and dry completely.
Pure Low-Shrinkage Silicones
Trade cartridges with active fungicides that flex with movement without splitting.
Ready When You Are
Get a Quote
Send photos and your postcode by WhatsApp, email or the contact form and we will come back with a price.
How your quote works
- 1Send photos2 or 3 photos of the job plus your postcode on WhatsApp
- 2Get a fixed priceExact all-inclusive quote agreed before you book — no callout fees
- 3We do the work100% strip-out, tidy finish, backed by our 5-year guarantee
“Great service no mess and and really professional job would definitely recommend them”
Online Quote Request