Professional Concrete Joint Sealing Services
Minnesota's Leading Expansion Joint Sealing Experts
Water is silently destroying your concrete from underneath. Every time it rains, water pours through those gaps in your driveway and sidewalk, washing away soil and creating the voids that cause expensive settling and cracking problems.
Foam-Tek's professional expansion joint sealing stops water infiltration before it causes costly damage. Our proven sealing solutions protect your concrete investment while eliminating weeds, preventing pest intrusion, and maintaining your property's appearance for years to come.
✔️Stop costly soil erosion and concrete settling caused by water infiltration
✔️ Eliminate weeds, insects, and rodents that enter through unsealed joints
✔️ Prevent freeze-thaw damage that turns small gaps into major repair problems

Free Expansion Joint Assessment
Protect your concrete investment today!


What Is Expansion Joint Sealing
Expansion joint sealing is the process of filling and sealing the intentional gaps between concrete slabs with flexible, weather-resistant materials. These gaps allow your concrete to expand and contract naturally with Minnesota's extreme temperature changes, but when left unsealed, they become highways for water, weeds, and pests.
Our professional sealing creates a flexible barrier that moves with your concrete while keeping water out. It's the difference between concrete that lasts decades and concrete that fails prematurely due to water damage and soil erosion underneath.
Why Your Concrete Joints Need Professional Sealing
Minnesota's harsh climate makes unsealed expansion joints a recipe for expensive problems:
Water Infiltration
Rain, snowmelt, and irrigation water pour through unsealed joints, washing away soil underneath your slabs and creating voids that cause settling.
Freeze-Thaw Destruction
Water trapped in joints freezes and expands, cracking and degrading your concrete from the inside out during our brutal winter cycles.
Weed and Pest Invasion
Unsealed joints provide perfect pathways for weeds to sprout through your concrete and for insects or rodents to access areas under your slabs.
Soil Erosion and Settling
As water washes away supporting soil through joints, your concrete loses foundation support, leading to expensive leveling and repair needs
Our Joint Sealing Process
We've perfected our sealing process to deliver long-lasting protection against Minnesota's challenging climate:
1. Comprehensive Joint Inspection
We examine every joint, identify problem areas, and assess the condition of existing sealant. Complete evaluation with honest recommendations.
2. Professional Preparation
Thorough cleaning and removal of old, failed sealant, weeds, debris, and loose material to ensure optimal adhesion of new sealant.
3. Premium Sealant Application
Application of high-grade, flexible polyurethane sealant designed specifically for Minnesota's extreme temperature swings and weather conditions.
4. Quality Assurance
Final inspection ensures complete coverage and proper cure. Your joints are now protected against water, weeds, and weather for years to come



Why Choose Foam-Tek for Expansion Joint Sealing
Not all joint sealing is created equal. Professional installation with premium materials makes the difference between lasting protection and failed repairs:
Climate-Engineered Solutions
We use sealants specifically designed for Minnesota's extreme temperature swings, from -20°F winters to 90°F+ summers, ensuring flexible performance year-round.
Professional-Grade Materials
Our premium polyurethane sealants offer superior adhesion, flexibility, and longevity compared to hardware store products that fail within a season.
Comprehensive Surface Preparation
Proper cleaning and preparation ensure optimal adhesion and performance. Most DIY failures result from inadequate surface prep.
Experienced Application Techniques
Our technicians understand proper application depth, curing conditions, and finishing techniques that ensure professional, long-lasting results.
Complete Moisture Protection
We create watertight seals that prevent the water infiltration responsible for 90% of concrete settlement and damage problems.
Warranty-Backed Performance
We stand behind our work with comprehensive warranties because we know our materials and methods deliver lasting protection.

Don't Just Take Our Word for It
When you're protecting your concrete investment, you want to hear from property owners who've experienced the Foam-Tek difference:
“This company is AWESOME! I had them fill a void in my garage floor and repair/raise my sinking sidewalk. They did a few extra things for me and didn’t even raise the price from the original quote. I highly recommend this company! Extremely knowledgeable and very easy to work with!”
-⭐️⭐️⭐️⭐️⭐️, David O.
“Foam-Tek did an amazing job start to finish. My walkway had been sinking for years leaving a big gap between the front stoop and the concrete and also a big step up to the front step. It was nearly 11 inches and it should have been 6-7 inches to step up. They were responsive to my initial email request within hours…”
-⭐️⭐️⭐️⭐️⭐️, Nicole F.
“I would highly recommend using Foam-Tek if you have concrete lifting and/or leveling needs. When I called for an estimate they actually came to my house and looked at what needed to be done. They showed up on time, did excellent work and their pricing was extremely competitive. Great company.”
--⭐️⭐️⭐️⭐️⭐️, Michael M.
Join the Growing List of Satisfied Customers
These results aren't accidents; they're the result of professional installation, premium materials, and proven techniques. Your concrete deserves the same level of protection.
Got Questions? We've Got the Real Answers.
We know you're wondering about costs, materials, and whether joint sealing is really necessary. Here are the honest answers every Minnesota property owner needs.
Minnesota's extreme climate makes joint sealing critical for concrete longevity. Our temperature swings from -20°F to 90°F+ cause constant expansion and contraction, while heavy spring rains and snowmelt pour through unsealed joints. This combination washes away soil, creates voids under slabs, and leads to expensive settling problems. Sealed joints prevent 90% of water-related concrete damage while stopping freeze-thaw destruction that cracks concrete from the inside.
Quality polyurethane sealants properly installed last 10-15 years in Minnesota's climate, far longer than DIY hardware store products that typically fail within 2-3 years. Our premium materials are engineered to handle extreme temperature swings and UV exposure while maintaining flexibility. The key is professional surface preparation and application—factors that determine whether your sealing investment lasts decades or disappoints within seasons.
Professional-grade polyurethane sealants offer superior adhesion, flexibility, and weather resistance compared to consumer products. We use materials designed for commercial applications that can handle 50 %+ joint movement without cracking. Additionally, proper surface preparation, thorough cleaning, debris removal, and moisture control are critical for lasting performance. Most DIY failures result from inadequate prep work and inferior materials that can't handle Minnesota's climate extremes.
Yes! Most concrete settling occurs because water enters through unsealed joints and washes away supporting soil underneath slabs. By creating a watertight seal, we prevent this soil erosion before it causes expensive damage. Joint sealing is one of the most cost-effective preventive maintenance services you can perform, a small investment that prevents thousands in future leveling and repair costs.
Joint sealing typically costs $10-12 per linear foot, depending on joint width, condition, and preparation required. For a typical driveway, homeowners invest $300-800 for complete protection that lasts 10-15 years. Compare this to $3,000-8,000+ for concrete leveling or replacement when water damage occurs, and joint sealing becomes one of the smartest maintenance investments you can make. We provide detailed quotes based on your specific needs.
Don't let another season of water infiltration damage your concrete. Foam-Tek's professional joint sealing will protect your investment and prevent costly repairs for years to come.