Before
Before: Discoloured, failed sealant causing water damage concerns
After
After: Professional clear sealant with 5-year guarantee
Materials Used
- Premium kitchen-grade clear silicone sealant
- Professional degreasing solution
- Isopropyl alcohol surface cleaner
- Professional finishing tools
Time Taken
2.5 hours
Guarantee
5-year workmanship guarantee
The Problem
A homeowner in Bolton contacted us regarding their kitchen worktop sealant, which had deteriorated significantly since their kitchen was installed three years earlier. The property featured an attractive modern kitchen with granite worktops, an undermount sink, and a gas hob. However, the silicone sealant around these fixtures had become discoloured, was pulling away from the worktop, and had developed gaps where water could penetrate.
The homeowner had noticed water pooling behind the sink and along the wall joints after washing dishes or preparing food. They were concerned about water damage to the kitchen cabinets below and potential mould growth in the damp areas. The discoloured sealant was also affecting the appearance of their otherwise pristine kitchen, making it look poorly maintained despite regular cleaning.
Additionally, the gaps in the sealant around the hob were allowing food debris and liquids to fall behind the appliance, creating hygiene concerns and making the area difficult to clean properly. The homeowner wanted a professional solution that would restore the kitchen's appearance, prevent water damage, and ensure proper hygiene around food preparation areas.
Site Inspection
Our technician conducted a detailed inspection of the kitchen worktops and identified several issues with the existing sealant. The silicone around the sink had failed due to constant water exposure and inadequate product selection – a standard silicone had been used rather than a kitchen-grade, water-resistant product. The sealant had yellowed and was separating from both the granite and the stainless steel sink.
Around the hob, we found that the sealant had hardened and cracked due to heat exposure from cooking. Gaps had formed that were allowing debris to fall into the cavity behind the appliance. The wall joints along the splashback area showed similar deterioration, with the sealant pulling away from the tiles and creating potential water traps.
We checked the underside of the worktop near the sink and found early signs of water staining on the cabinet top, confirming that water had been penetrating through the failed sealant. Fortunately, there was no significant damage yet, but continued water ingress would eventually cause serious problems. We provided a comprehensive quote for complete kitchen worktop resealing using premium, kitchen-specific materials, which the homeowner approved.
Removal & Preparation
We began by carefully removing all failed silicone sealant from around the sink, hob, and all worktop-to-wall joints. Using professional sealant removal tools and sharp blades, we extracted every trace of the old, discoloured sealant. This required particular care around the granite worktop to avoid scratching the polished surface and around the stainless steel sink to prevent damage to the finish.
The old sealant around the sink came away in sections, revealing the extent of water penetration underneath. We removed all contaminated material and cleaned out any debris that had accumulated behind the hob. The process was methodical and thorough, ensuring that no residue remained that could compromise the adhesion of the new sealant.
After removal, we thoroughly cleaned all surfaces with professional-grade degreaser to remove cooking oils, food residue, and any soap buildup. We then wiped down all joints with isopropyl alcohol to ensure completely clean, dry surfaces. The granite, stainless steel, and tile surfaces were left pristine and ready for the new sealant application. We allowed adequate drying time before proceeding.
Application & Tooling
We used premium kitchen-grade silicone sealant specifically formulated for worktop applications. This product offers superior water resistance, excellent adhesion to granite and stainless steel, and contains anti-fungal additives to prevent mould growth. Importantly, it's also food-safe and resistant to the oils and cleaning products commonly used in kitchens.
We applied masking tape along all joints to ensure perfectly straight sealant lines and protect the granite and sink surfaces. Using professional-grade sealant guns, we applied continuous beads of clear silicone around the sink perimeter, along the hob edges, and at all worktop-to-wall joints. Clear silicone was chosen to maintain the clean, modern aesthetic of the kitchen while providing invisible protection.
We worked systematically around each area, ensuring consistent bead size and complete coverage. Special attention was paid to the sink corners and the junction between the worktop and splashback tiles, as these are the most vulnerable areas for water ingress. The application was completed efficiently to allow proper tooling before the sealant began to cure.
Finish & Quality Check
Immediately after application, we tooled each sealant bead using professional finishing tools and soapy water solution. This process pressed the silicone firmly into the joints, ensured complete contact with all surfaces, and created smooth, concave profiles that would effectively shed water and prevent debris accumulation. The tooling technique was particularly important around the sink to create a watertight seal.
We carefully removed the masking tape to reveal crisp, professional sealant lines throughout the kitchen. The clear silicone was virtually invisible against the granite, maintaining the sleek appearance of the worktop while providing comprehensive protection. Every joint was inspected to ensure perfect adhesion and complete coverage with no gaps or air pockets.
We cleaned away any excess sealant or residue from the granite, sink, and tiles, leaving the kitchen spotless. The transformation was immediately apparent, with the worktops looking fresh and professionally finished. The homeowner was delighted with the clean, seamless appearance and the knowledge that their kitchen was now properly protected against water damage.
The Result
The kitchen worktop resealing completely eliminated the water penetration issues and restored the kitchen to pristine condition. The new kitchen-grade silicone created watertight barriers around the sink, hob, and all wall joints, preventing water from reaching the cabinets below and protecting the investment in the kitchen installation. The homeowner could now use their kitchen with confidence, knowing it was properly sealed.
The hygiene concerns around the hob were resolved, as the new sealant prevented food debris and liquids from falling behind the appliance. The kitchen was now much easier to keep clean and maintain to proper food safety standards. The clear silicone maintained the modern, minimalist aesthetic of the kitchen while providing invisible protection.
The homeowner was particularly pleased with the professional finish and the dramatic improvement in the kitchen's appearance. What had looked tired and poorly maintained now looked fresh and well cared for. We provided our 5-year workmanship guarantee and comprehensive aftercare advice. The kitchen was ready for use within 24 hours, and the homeowner could enjoy their properly sealed, protected kitchen for years to come.
Aftercare Advice
We advised the homeowner to avoid using the sink and hob for 24 hours to allow the silicone to cure fully. We explained that while the sealant would be touch-dry within a few hours, full cure time ensures maximum water resistance and durability. After 24 hours, the kitchen could be used normally without any restrictions.
For ongoing maintenance, we recommended wiping down the sealant joints regularly with a clean, damp cloth to remove any food residue or cooking oils. We advised using mild kitchen cleaners and avoiding harsh chemicals or abrasive materials that could damage the silicone. We also suggested avoiding excessive heat near the hob sealant by using appropriately sized pans and avoiding spillovers.
We explained that with proper care, the kitchen-grade silicone should remain in excellent condition for many years, maintaining both its appearance and protective properties. We provided guidance on what to look for during routine cleaning – any signs of separation, discolouration, or gaps should be addressed promptly. The homeowner was given our contact details and encouraged to call if they had any concerns during the guarantee period.
Fully Insured
Public liability cover
5-Year Guarantee
On all workmanship
Local Specialist
Serving Greater Manchester
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