One of the first questions homeowners ask is: "How much does it cost to seal expansion joints?" It is a fair question, and we believe in transparent pricing. In this guide, we break down what expansion joint sealing costs in Texas, what factors affect the price, and why it is one of the best investments you can make for your property.
Average Cost of Expansion Joint Sealing
At Seal My Joints, our pricing is straightforward:
- Starting price: $999 for most residential projects
- Per-foot average: Approximately $10 per linear foot
- Typical residential driveway: $999 to $2,500 depending on size and complexity
This includes the complete service: removal of old material, backer rod installation, and professional-grade silicone application. There are no hidden fees or surprise charges.
What Factors Affect the Price?
Several variables can influence the final cost of your project:
Total Linear Footage
The most significant factor is simply how many linear feet of expansion joints need sealing. A small driveway with 100 feet of joints will cost less than a large property with 250 feet. We measure during our free on-site estimate so you know exactly what to expect.
Condition of Existing Joints
Joints filled with badly deteriorated plywood or packed with dirt and debris require more preparation time. If the old material is difficult to remove or the joints need significant cleaning, this can affect pricing.
Joint Width and Depth
Standard expansion joints are typically three-quarters of an inch to one inch wide. Wider or deeper joints require more backer rod and silicone material, which can increase the cost slightly.
Accessibility
Most residential driveways are straightforward to access. However, if joints are in hard-to-reach areas or require special equipment, this may factor into the estimate.
What Is Included in the Price?
When you hire Seal My Joints, every project includes:
- Free on-site estimate — We come to your property, measure everything, and provide a detailed quote at no cost.
- Complete removal — All old plywood, foam, or deteriorated material is removed and disposed of.
- Joint cleaning — Joints are cleaned of dirt, debris, and sediment to ensure proper adhesion.
- Backer rod installation — We install backer rod at the correct depth so the silicone bonds properly and maintains flexibility.
- Professional silicone application — Commercial-grade weatherproof silicone is applied for a clean, lasting seal.
- Cleanup — We leave your property clean when we are done.
How It Compares to the Cost of NOT Sealing
Here is the math that matters: sealing your expansion joints costs $999 to $2,500. Repairing or replacing cracked and sunken concrete costs $3,000 to $10,000 or more. That is a three-to-ten-times difference.
When expansion joints fail, water erodes the soil under your slabs. Once that support is gone, concrete cracks and sinks. At that point, you are looking at either concrete leveling (offered by our sister company Hill Country Slabs) or full slab replacement — both of which cost significantly more than preventative sealing.
Financing Options
We understand that home maintenance costs add up. That is why we offer financing through Klarna, allowing you to spread the cost over time with manageable payments. Ask about available plans when you schedule your free estimate.
Get Your Free Estimate
Every property is different, and we want to give you an accurate quote — not a guess. Request your free estimate online or call us at (737) 287-4308. We typically respond within a few hours and can schedule your on-site visit quickly. We serve Austin, San Antonio, and all of Central Texas.