Expansion Joint Sealant

Have you noticed problems with your concrete driveway, patio, or sidewalk? Don’t let the issue grow. It’s time to talk to the concrete repair experts at Baird Foundation Repair! cracks, foundation settlement, and other foundation problems.

Have you noticed problems with your concrete driveway, patio, or sidewalk? Don’t let the issue grow. It’s time to talk to the concrete repair experts at Baird Foundation Repair! cracks, foundation settlement, and other foundation problems.

Concrete Expansion Joint Experts

Concrete is strong, but it’s not indestructible. Soil below your concrete driveway, sidewalk, patio, or pool deck can soften or erode as surface water runs through open cracks and joints. Weak soils and voids cause concrete to shift and sink, resulting in cracked, uneven surfaces.

Proper concrete caulking and sealing help to protect your driveway or walkway from soil erosion, prolonging the need for replacement or repairs down the road. At Baird Foundation Repair, we use NexusPro®, a silicone-based crack and joint sealer. NexusPro® offers a long-lasting and durable solution that will stand up to harsh weather conditions and keep moisture from seeping beneath your concrete, where it can cause further problems. When we install NexusPro®, we prepare and clean the concrete cracks, insert the product, and then finish it off with native sand to give the whole surface a clean, finished look. Unlike traditional polyurethane sealants, NexusPro® resists UV rays, which means it won’t crack, bubble, or dry. Plus, the drying time is a fraction of that needed for other urethane-based caulking products.

Signs You Need Expansion Joint Sealant

Cracking or Splitting: Indicates dried-out sealant, letting water and debris in.

Pulling Away From Sides: Sealant detaches from joint sides, allowing moisture in.

Bubbling or Degradation: Caused by UV, temperature changes, or chemicals, showing sealant breakdown.

Unsealed New Concrete: Even brand-new joints should be sealed to prevent early damage and extend the life of the slab.

Separating: Gaps between sealant and joint indicate a broken seal, risking water damage.

Signs You Need Expansion Joint Sealant

Cracking or Splitting: Indicates dried-out sealant, letting water and debris in.

Pulling Away From Sides: Sealant detaches from joint sides, allowing moisture in.

Bubbling or Degradation: Caused by UV, temperature changes, or chemicals, showing sealant breakdown.

Unsealed New Concrete: Even brand-new joints should be sealed to prevent early damage and extend the life of the slab.

Separating: Gaps between sealant and joint indicate a broken seal, risking water damage.

Why Choose NexusPro® Concrete Joint Sealant?

After you have leveled your driveway, sidewalk, porch, or patio with our PolyLevel® solution, we recommend sealing the joints with NexusPro®. At Baird Foundation Repair, we know your home matters to you, and we take pride in giving homeowners peace of mind knowing that their concrete is protected for years to come.

NexusPro®, our premium joint sealant, offers a range of benefits that enhance the appearance and longevity of your concrete surfaces:

  • Flexible Silicone: NexusPro® is made of a flexible silicone material that ensures it can move with the natural expansion and contraction of concrete, preventing future cracking.
  • UV Resistant: This sealant is UV resistant, so it won’t deteriorate or discolor when exposed to sunlight, maintaining its attractive appearance over time.
  • Durable: NexusPro® is exceptionally durable, standing up to the rigors of heavy foot traffic and vehicular use, ensuring your surfaces remain crack-free for years to come.
  • Year-Round Installation: Our skilled technicians can install NexusPro® year-round, regardless of the weather conditions, providing a convenient solution for your concrete crack sealing needs.

With NexusPro®, your leveled surfaces not only look pristine but also stay protected against the elements, preserving the beauty and integrity of your property for the long term.

Expansion Joint Sealant for Long-Lasting Concrete Protection

Old or damaged expansion joints can cause cracks, uneven surfaces, and water infiltration that shorten the life of your concrete. NexusPro® sealant offers a durable, flexible solution that moves with your slabs, protecting your sidewalks, driveways, patios, and pool decks. With professional concrete caulking by Baird Foundation Repair, your concrete looks better, performs better, and stays protected for years to come.

Expansion Joint Sealant for Long-Lasting Concrete Protection

Old or damaged expansion joints can cause cracks, uneven surfaces, and water infiltration that shorten the life of your concrete. NexusPro® sealant offers a durable, flexible solution that moves with your slabs, protecting your sidewalks, driveways, patios, and pool decks. With professional concrete caulking by Baird Foundation Repair, your concrete looks better, performs better, and stays protected for years to come.

Recent Expansion Joint Sealant Projects

Recent Expansion Joint Sealant Projects

Concrete Repair in Buda TX: Safe and Lasting Results2025-11-12T13:08:26-06:00
Buda, Texas homeowner walkway trip hazards gone with concrete repair.

Concrete Repair in Buda TX: Safe and Lasting Results

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Concrete Leveling and Repair in Corpus Christi, TX2025-11-12T14:04:43-06:00

Concrete Leveling and Repair in Corpus Christi, TX

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Uneven Pool Deck Repair With PolyLevel In San Antonio, TX2025-11-12T14:07:39-06:00

Uneven Pool Deck Repair With PolyLevel In San Antonio, TX

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Frequently Asked Questions

What Is An Expansion Joint?

An expansion joint in concrete is a deliberate break or separation in the concrete slab or structure. It allows for controlled expansion and contraction of the concrete due to temperature changes, preventing cracking. Expansion joints help relieve internal stresses that build up within the concrete as it expands and contracts.

The maximum size of a concrete slab without expansion joints depends on various factors, such as the concrete mixture, reinforcement, and environmental conditions. Generally, expansion joints are recommended every 20 to 30 feet in residential concrete slabs. For larger commercial or industrial slabs, expansion joints may be required at closer intervals. Consulting with a professional concrete contractor like Baird Foundation Repair is advisable to determine the appropriate joint spacing for your specific project.

Yes, concrete can crack without proper expansion joints. As concrete expands and contracts due to temperature changes or other factors, internal stresses build up within the slab or structure. Without expansion joints to accommodate this movement, the concrete may crack and potentially lead to more severe damage over time. Properly designed and installed expansion joints are crucial for preventing cracking and ensuring the longevity of concrete structures.

Adding expansion joints after pouring concrete is generally not recommended and can be challenging. Expansion joints must be planned and installed during the initial concrete pouring process. Attempting to cut or create expansion joints after the concrete has cured can weaken the structure and may not provide the desired relief from expansion and contraction stresses. If you suspect that your existing concrete lacks proper expansion joints, it is best to consult with a professional concrete repair company like Baird Foundation Repair for an evaluation and appropriate remediation solutions.

To stop an expansion joint from leaking, several measures can be taken. First, ensure that the joint is clean and free of debris before applying a suitable sealant. Use a high-quality, flexible sealant specifically designed for expansion joints, following the manufacturer’s instructions for proper application. Additionally, consider installing a water stop or joint filler material within the joint before sealing to prevent water migration. If the expansion joint is severely damaged or leaking excessively, it may require professional repair or replacement by a company like Baird Foundation Repair to ensure a long-lasting and effective solution.

Testimonials

Don’t just take our word for it—read what our customers have to say about their experience.

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Nando1528
16:16 21 Aug 25
The job has been completed.
I am very pleased and impressed with the high level of communication from all Baird employees, from office to the field.
Marco, was excellent at walking me through the process. Very clear .
The job turned out even better than I expected. Baird has earned their excellent reputation!!! Thank you!!
My car can now ROLL into the garage!!
Sharon Loken
14:44 21 Aug 25
Valerie and Jesus were very professional same made sure my driveway was to my satisfaction.
Dennis Lott
16:41 20 Aug 25
The crew that made may foundation repairs were excellent!! They explain every step in detail and answered all of my questions and concerns in terms that I could understand!! If I have any foundation issues in the future Baird Foundation repair and that crew will be the company I call on!! Thank you very much!

Dlott, Homeowner
Kami Rapp
15:23 20 Aug 25
We had extensive work done to replace joists and base plates under our 92 year old house. The entire team was professional and paid close attention to detail throughout the job. It started with our sales rep, Brandon, and continued on through the crew that came to do the work. The crew was led by Juan and supported by Carlos and Israel, along with the rest of the crew doing the work. I could not be more pleased with the work they did and would highly recommend Baird for any pier and beam foundation work.
bracca123
19:27 19 Aug 25
The crew was fantastic and worked their butts off. Very professional and courteous I would highly recommend Baird Foundation repair as well as this crew.
KAREN GLENNEY
00:44 19 Aug 25
I asked Baird to come back ten years after leveling my house. That project is still solid, but a new issue came up. Roger and his crew were great, accomplishing everything they said they would. Very impressive. I can’t say enough about Baird.
max MCCARLEY
00:11 18 Aug 25
PR79395 - I was not personally present at the job site. Rather
my brother Jeff observed the work and found it very satisfactory.
Sorry I do not know the job foreman's name. 5691 Circle Oak
Bulverde, Tx 8/13/2025
Christopher Rodriguez
23:13 16 Aug 25
Francisco and his crew are very professional and do some great work. Francisco was very transparent throughout the entire project. Francisco answered and explained every question I had thoroughly. This is my second time using Baird foundation and would recommend them to anyone needing foundation or concrete work!
Erick Theil
20:25 15 Aug 25
Marco and Jesus were fantastic. They were exceptional and walked me thru every aspect of the job. Great job guys.
Kirsten Marino
19:49 15 Aug 25
All the crew members did an awesome job Michael, Rene,Zaiden and Albert. Michael kept me up to date on all the progress and answered all my questions. I would definitely recommend them. Also Jacob and Shelby did great too.