How often should kitchen caulking around sinks and backsplashes be replaced in New Brunswick, and what does the job cost?

Kitchen caulking in New Brunswick should be replaced every 2-3 years due to our Maritime climate's humidity swings, which cause caulk to crack, shrink, and fail faster than in drier climates. The job typically costs $200-500 for professional replacement or $30-60 in materials for DIY.

New Brunswick's challenging climate conditions make caulk maintenance more critical than in other regions. Our humid summers (often 70-80% humidity) followed by dry heated winters (15-25% indoor humidity) create constant expansion and contraction cycles that stress caulk joints. This is especially problematic around kitchen sinks where water exposure accelerates deterioration, and behind backsplashes where temperature changes from cooking add additional stress.

Signs it's time to replace kitchen caulking include visible cracks, gaps where the caulk has pulled away from surfaces, discoloration or mold growth, and a spongy feel when pressed. In NB kitchens, pay special attention to the joint where countertops meet backsplashes, around undermount sinks, and where backsplash tiles meet countertops. These areas see the most water exposure and temperature variation.

Professional replacement costs range from $200-500 depending on the scope. A basic sink perimeter runs $150-250, while a full kitchen including backsplash, sink, and countertop joints costs $300-500. Many handymen or general contractors offer this service, and it's often bundled with other small maintenance tasks to make the service call worthwhile.

For DIY replacement, budget $30-60 in materials including caulk remover, new caulk, and tools. Use 100% silicone caulk (not acrylic) for wet areas like sinks, as it handles NB's humidity better and won't crack as quickly. Kitchen and bath caulk with mildew resistance is worth the extra $5-10 per tube in our climate. The job takes 2-4 hours including removal of old caulk, cleaning, and application.

Proper technique is crucial for longevity in NB conditions. Remove all old caulk completely using a caulk removal tool or utility knife, clean surfaces with rubbing alcohol, and ensure they're completely dry before applying new caulk. Apply in temperatures between 40-80°F and avoid humid days when possible. Tool the joint immediately with a wet finger or caulk tool for a smooth, water-tight seal.

Preventive maintenance can extend caulk life in NB kitchens. Run your range hood during cooking to reduce humidity and temperature swings, wipe down caulk lines after heavy water use, and address small cracks immediately before they spread. Quality caulk applied properly in ideal conditions can last 3-4 years in NB, while rushed jobs or cheap materials may fail within 12-18 months.

Consider hiring a professional if you're dealing with multiple areas, have never caulked before, or notice recurring failure in the same spots - this might indicate underlying moisture issues that need addressing. New Brunswick Kitchens can help you find local contractors who handle caulking as part of kitchen maintenance services.