Home About Services Projects Blog Contact Joint Sealants Keep the Water Out With The Best Joint Sealant Contractor in Northern California The integrity of your building’s expansion joints is critical to prevent water intrusion. When proper materials are used and installed by our trained waterproofing technicians, you can anticipate a much more secure building without the threat of leak or damage. Rainbow Waterproofing & Restoration’s expert use of joint sealants keeps people within your building dry. Substrate preparation, material selection, and proper joint geometry and tooling are key factors to ensure the joints in your building will last. Attention to detail is why we’re the best joint sealant contractor in San Francisco and beyond. Get Started Why Rainbow? Because we know how to optimize the longevity and effectiveness of your building’s joints. We listen to our clients’ needs and goals to recommend the best waterproofing solutions for their unique challenges and budgets. Our Joint Sealants Protect You from the Elements An expansion joint is an intersection where two building elements meet to prevent the elements from applying static load to each other. These assemblies enable the building to safely expand and contract in shifting temperatures. As the seasons change, it’s normal for concrete, walls, or other materials to expand and contract. There are three ways joints can move: expansion, contraction, and shear. Expansion joints also enable the structure to move, absorbing vibrations caused by ground settlement or earthquakes. The latter is especially important in Northern California. Ready to Get Started? Contact Us Waterproofing Made Easy When joints become damaged, buildings become damaged. Failed sealant joints can leak, letting water and air seep in, and conditioned air seep out. That’s why you need a qualified joint sealant contractor to fortify your building’s sealant joints. Rainbow can properly apply sealant joints that last to prevent costly and disruptive water intrusion and avoid expensive premature replacement costs. Rainbow can apply joint sealant when waterproofing your building: Masonry Tile wall panels Concrete paving Glazing systems Exterior wall joints Door and window frames Metal flashings Roof joints Seismic movement joints We are an approved applicator for many manufacturers such as: Sika Tremco Dow Momentive BASF Emseal Situra Watson Bowman We have other commercial waterproofing services that can fortify your building such as traffic coatings, below-grade membranes, or plaza membranes. 415-641-1578 600 Treat Avenue San Francisco, CA 94110 © 2021 Rainbow Waterproofing & Restoration. Privacy Policy | CA lic. CSLB #148753 | Cert. SBA-LBE #15305