Professional Joint Seal Replacement
Sealant and Caulking Replacement
We replace failed exterior sealant and caulking at window perimeters, curtain wall joints, EIFS/control joints, and transitions to restore watertight performance.
We serve commercial, multi-family, co-ops, schools, and residential owners across Huntington Station and New York City, with coverage citywide and throughout Long Island and the Tri-State region. Licensed, insured, and compliance-driven, we deliver durable joints using silicone, urethane, or STP with proper backer rod.
Compliance-First Sealant Specialists You Trust
Reliable, Safe, Code-Compliant Delivery
We approach sealant and caulking replacement as a building enclosure scope, not a patch. We plan the work around access, occupancy, and weather to protect tenants and finishes, and we execute with trained crews who follow OSHA and NYC site-safety requirements.
Our estimators and in-house engineering support review drawings, details, and existing conditions to select the right chemistry—silicone, urethane, or STP—and the correct backer rod and joint design.
We submit product data and color selections for client approval, then stage suspended scaffolding, pipe scaffolding, sidewalk sheds, or access elevators as required. Existing sealant is removed to clean substrate, joints are prepared and primed per manufacturer literature, and beads are tooled to profile for long-term waterproofing performance at window perimeters, curtain wall joints, EIFS/control joints, and transitions.
We specify proven brands, including Sika and Pecora, to meet ASTM standards and project details. Our compliance-first delivery covers NYC DOB/DOT permits and after-hours approvals, umbrella insurance across the project, and documentation for special inspections where required.
We also provide 24/7 emergency response for active water intrusion to stabilize conditions and schedule permanent replacement.
We serve Huntington Station and New York City for projects citywide and throughout Long Island and the Tri-State area; for smaller projects we prefer a 50 km radius, and for larger scopes we mobilize up to 100 km—clients outside these ranges can still contact us to discuss.
To maintain clear scope boundaries, we do not coordinate penetrations and flashings with other trades; we focus on durable, code-compliant joint systems delivered safely and efficiently.
Sealant Replacement Questions Answered
What are failure warning signs?
Look for cracking, debonding at edges, hardening, gaps at control joints, or water staining near window perimeters and curtain wall mullions. Movement or shrinkage in EIFS or masonry can open joints. If you see these conditions, sealant and caulking replacement is the correct preventive step to restore watertightness and avoid costly facade restoration later.
How often should joints be replaced?
Service life varies by chemistry, exposure, and joint design, but most exterior joints need evaluation at 5–7 years and replacement roughly every 10–15 years. UV, ponding, and building movement accelerate aging. We inspect and plan replacements proactively as a qualified waterproofing contractor to keep assemblies watertight and compliant across Huntington Station and New York City.
Which sealant chemistry is best?
Silicone excels in UV and temperature cycling and is common at glass, metal, and curtain wall perimeters. Urethanes offer toughness and abrasion resistance, useful at traffic-adjacent joints. STP hybrids bond well to varied substrates and can be overpainted. We specify Sika or Pecora systems based on substrate, movement, and code compliance for sealant and caulking replacement.
What is your replacement process?
We remove failed material to sound substrate, clean and dry the joint, install the correct closed-cell backer rod, apply primer where required, then gun and tool new beads to the designed profile. Access is set with suspended or pipe scaffolding, sidewalk sheds, or access elevators. This disciplined exterior building restoration approach delivers durable, uniform joints.
Will this stop curtain wall leaks?
Perimeter sealant failure is a common leak path, and replacing those joints typically resolves infiltration. We address window perimeters, EIFS/control joints, and metal-to-masonry transitions; penetrations and flashings by other trades are not within our coordination. As a focused waterproofing contractor, we restore the intended sealant system and document the work for compliance and special inspections.
Do you work while occupied?
Yes. We schedule around tenants and sensitive areas, maintain OSHA and NYC site-safety controls, and manage DOB/DOT permitting and after-hours approvals when needed. We serve Huntington Station and New York City citywide, with preferred travel within 50 km for smaller projects and up to 100 km for larger scopes. For urgent issues, our 24/7 emergency team responds.
We had recurring leaks around apartment windows facing the courtyard, and previous touch-ups never lasted. Skylight Restoration mapped the failed beads, explained why the joint design was wrong, and replaced every perimeter with properly sized backer rod and Sika silicone. Work ran quietly under a small sidewalk shed, and they documented each lineal foot. Since the first storm, no staining or drafts—exactly what we needed in New York City.
— Mia Carter
⭐️⭐️⭐️⭐️⭐️Our office building in Huntington Station had water entering along the south curtain wall after heavy wind. Skylight Restoration responded the same day, stabilized the area, then scheduled full sealant and caulking replacement at mullion intersections and transitions. Their team coordinated safe access, handled permits, used Pecora systems, and finished on time. After two major rains, the interior remained dry and the façade looks clean and consistent.
— Daniel Brooks
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Phone Number
Mobile: +1 631 201 7000
Opening Hours:
Monday to Friday: 8 am – 5:30 pm
Saturday: 9 am – 4 pm
Sunday: Closed
Request A Precise Quote
Tell us about your building, leak locations, photos if available, and any schedule constraints. We will review conditions, propose the appropriate sealant chemistry and joint design, and outline access, permitting, and safety steps. Our team serves Huntington Station and New York City citywide and can mobilize for larger scopes. Submit the form to receive a clear, compliance-ready proposal tailored to your project.
