Tag Archive for: Concrete Repair

It happens innocently. A worker is boring into concrete in order to fix an issue with a bathroom or HVAC system and, suddenly, they hear a BOOM! The floor vibrates. Expletives ensue. It’s a shocking moment and often the first response is to hope it’s nothing. Unfortunately, what has likely happened is a post-tension cable has been struck and snapped, and even though it can’t be seen, it can cause safety issues and problems down the road.

When accidents happen, give us a call. We hear from contractors and building superintendents frequently when post tension cables have been unintentionally hit by core drillers. This typically happens during work on HVAC systems and plumbing—especially installing toilets.

The good news is: we can help. HEXA is the Colorado expert in post-tension repair, with specialized training under our belts and the been-there-done-that knowledge to get repairs done quickly and seamlessly.

We understand that post-tension expertise is not something contractors have time to invest in. The best choice is to get our team in right away to repair the problem and return the building to a safe condition. And for building owners who don’t have an engineer on staff who can assess the damage, we do it for you, bringing in an engineer with the experience to diagnose exactly what needs to be done to get it done right.

When it comes to post-tension repairs, we’ve seen it all. Our experience and quality set us apart. Post-tension repairs can be tricky and no two jobs are alike. You can rest assured that we’ll do a fast, safe, and efficient job. Don’t be fooled by low bids. Unfortunately, we see others get into a job with a low bid only to bump up the cost with “unexpected items.” We don’t work that way. We have the expertise to bid it right the first time and we’re honest and upfront from the get-go so you aren’t caught with unpleasant “surprises.” If you suspect an “oops” has occurred on your job site, don’t delay, give us a call!

HEXA has always been locally owned, relationship-based, and committed to helping others. We recognize that strong, stable communities benefit us all. That’s why, when we come across an organization that is actively involved in building better communities, we’re happy to give back.

We recently had the privilege of lending a hand to Warren Village – a nonprofit organization located in Denver, Colorado, which exists to help low-income, single-parent families achieve self-sufficiency. We learned of a concrete problem at their facility that was costing them money every day. The sealant on the top deck of their garage had deteriorated, allowing water to leak into their mechanical/engineering room, destroying their electronics. Their budget did not include funds for this type of repair nor replacement of electronic and mechanical equipment.

Our team was happy to step in and help. Our crews first removed the deteriorated sealant from the joints. We then re-caulked all joints and cracks. We prepped and installed a traffic coating on the top deck to prevent a repeat of this type of water damage, which, without preventive action, can be relentless. Check out some before and after photos.

“I’m grateful to HEXA for the repair and sealing work done on our upper deck,” said Forest Ray, Operations and Risk Manager at Warren Village. “For the first time in many years there are no leaks into the shop area below, and it just looks good! It’s been a pleasure working with your entire crew.”

We’re happy we could help so that Warren Village didn’t need to divert funds away from their important, life changing mission. Their program focuses on providing affordable housing, resources for parents, and services for children.

  • Housing: Warren Village offers two- to three-year transitional housing for single-parent families in their 92-unit, Capitol Hill apartment building. Safe, consistent, affordable housing helps families break the cycle of poverty and achieve self-sufficiency.
  • Parent Resources: Each resident must be committed to working toward specific personal and self-sufficiency goals and is paired with a Family Advocate who has specialized training in core areas. Advocates assist residents as they work towards goals associated with post-secondary education, career development, personal finance, life skills, and child development.
  • Early Childhood Services: The United Airlines Early Learning Center, located onsite at Warren Village, provides high-quality, developmental care and licensed early childhood education for more than 100 children, ages 6 weeks to 10 years. The evidence-based classroom management provides a responsive curriculum which prioritizes mental health and developmental support, with a focus on good nutrition.

We’re thankful to be able to give back to the communities we serve and take part in making them stronger. If you’d like to learn more about Warren Village or how you can contribute to their work, visit their website at warrenvillage.org.


We’re moving on up! As we enter our third decade as Denver’s go-to concrete repair contractor, HEXA continues to expand. We’ve moved to a new location in Golden so that we can continue to offer state-of-the-art concrete repair to our loyal customers and many new ones.

Located at 15725 S. Golden Road, we’ve converted a previous four-bay mechanic shop and office to our new, modern headquarters. With blood, sweat, and a few tears, we’ve custom designed the facility with a western rustic biker feeling, open lobby and office space, and our hand-poured epoxy coated floors.

Our new location has room for training, space to hold our equipment, houses a few employee offices and, of course, has room for our bikes! What we like most is that it has plenty of room for our continued growth and expansion.

If you’ve ever moved or renovated, you know the work that goes into it and the pride that goes with it. We’re very excited and would love to show you our new digs – stop by any time!

HEXA is not a huge, faceless, national corporation focused on our bottom line. We are different. Colorado is our home. We’ve been locally owned and operated right from the start, always focusing exclusively on Colorado clients. We take pride in our reputation for innovative communication processes, extremely high client satisfaction, and repeat clients who have become our friends. We’re so thankful for your business and your trust that continues to help us grow so that we can serve you even better.

The HEXA team has decades of experience, and we pride ourselves on staying current on the most innovative and cost-effective ways to keep your concrete working for you. Our team is currently tackling a complex and interesting project – reinforcing two concrete columns at the main entrance of an older apartment building in Denver to extend their longevity.

These columns are structural, running six feet above and three feet below the surface concrete, so their weight-bearing capability is critical to the building. To ensure that they can continue to do their job, we are strengthening these columns by pouring concrete then adding a carbon fiber wrap to further reinforce the columns.

Fiber-reinforced wraps can be up to ten times stronger than steel, yet thinner and flexible to help increase the load-bearing capacity of concrete. Shoring up the columns is a complex, multi-step process. The project is rewarding because by extending the life of the columns, we are extending the life of the building itself.

Call us to schedule a free inspection or if you suspect you need repairs. Addressing those needs now will save you money down the road.

Winter is coming to Colorado and it’s a tough season for concrete. Water seeps into joints and existing cracks, expanding and contracting with the freeze/thaw cycle, which further damages the concrete. Taking preventive action before the long months of winter can ensure that your vulnerable concrete will have sustained less wear come spring.

In this short video, the HEXA crew is scraping away the existing coating and sealants on the island areas of a parking structure. The islands were weathered, which had allowed water to seep in and had started breaking down the concrete. Once the old finish was removed, we installed new urethane sealants, a cementitious coating, and a clear, penetrating sealer. Had we not addressed these issues additional water could have intruded, potentially deteriorating the parking structure underneath.

By being observant of the condition of their concrete and taking proactive steps when they suspected damage, the client has protected themselves from future repairs, expense, and possible liability.

Our free inspection can help you do the same — give us a call today!

HEXA is working hard to make your properties work better for you! Our expert crews recently made some repairs and installed a new pedestrian coating on five balconies at a property in Denver. This short video shows some of the work.

Concrete damage is common in Colorado. It occurs when water intrudes into concrete joints and cracks then freezes and expands, which can cause the existing coating to fail. For this project, water began leaking into the interior of the building due to the compromised coating. The fixes included removing the deteriorated coating, repairing and replacing the damaged concrete, and then installing a brand-new pedestrian coating for a final seal and finish.

Had these issues not been addressed, water would have continued to leak into the building, creating damage to the interior and the need for costly repairs. You can stay ahead of potential damage and unnecessary expense! Watch for evidence of concrete spalling – round or oval depressions on surfaces or along joints, damaged ceiling tiles, and leaking around interior windows.

We offer complimentary inspections of your concrete. We’ll help you identify issues and allow you to plan for preventive maintenance or repairs before winter weather takes a bigger toll – not only on your concrete but on your wallet. Give us a call today to get on the schedule!

Can you waterproof flat concrete surfaces?

YES! And in Colorado weather, horizontal waterproofing is a must.

Plazas, parking decks, rooftop terraces, and balconies in Colorado face a multitude of stressors. They all need waterproofing that can withstand exposure to wide temperature swings, frequent freeze/melt cycles, strong UV rays, salt and de-icing chemicals, and heavy traffic – all while looking good.

Products used for above-grade waterproofing differ substantially from their below-grade counterparts. A structure with no flashings, no sealants, and no membranes on the roof and walls would last only a few years. These above-grade concrete surfaces also need to resist abrasion and corrosion.

What is Horizontal Waterproofing?
Horizontal waterproofing applies a thin layer (generally between 60 to 120 mils) of continuous water-tight material over a surface. For example, on a flat terrace, horizontal waterproofing is applied above the structural slab and below the finish tiles at a sloped angle to ensure there is not standing water or seepage.

To give you a long-term fix and put an end to your surface water damage, the expert HEXA team uses two types of horizontal waterproofing applications: liquid applied membranes and sheet-good membranes. We use only the highest quality of materials for a strong, flexible, tear-resistant product that stretches over cracks, flexibly takes the shape of what it covers, and resists our harsh Colorado weather. 

  1. Sheet-good Horizontal Waterproofing
    HEXA’s sheet-good waterproofing provides continuous, consistent thickness and strong adhesion to bond tightly with your surface and ensure water does not seep into the structural slab.
  1. Liquid Horizontal Waterproofing
    We spray or brush-on our liquid waterproofing and can thereby regulate the thickness as needed. The procedure is very fast and air cures the liquid into a seamless, joint-free membrane.

Protect the Investment in Your Building’s Exteriors.
Now’s the time to spruce up your building for Spring! With HEXA’s fast, quality repairs, your outdoor spaces will be back to looking beautiful and professional in no time.

Contact us today and we’ll find the best solution to end your puddles, pooling, and concrete damage once and for all!

Colorado winters are tough on concrete. When water turns to ice it expands about 9%. If that water has settled into even a hairline crack, it can mean big damage when the temperatures drop.

Whether it’s in a parking structure, concrete slab, or foundation wall, damage can occur with the first freeze-thaw cycle and will worsen exponentially with every cycle.

Hidden & Visible Concrete Distress
There are many ways concrete is stressed in these winter months. Some damage is visible and other damage occurs below the surface. You may experience:

  • Enlarged and new cracks in your concrete
  • Water damage in your building
  • Plastic shrinkage creates cracks typically two to four inches deep and 1/8” wide on horizontal surfaces exposed to the atmosphere. These cracks can form in cold weather conditions when the temperature of the concrete is high compared with the surrounding air temperature. The concrete dries, shrinks, and cracks due to rapid moisture loss.
  • Scaling (sometimes called mortar flaking) is visual or microscopic flaking or peeling of a finished, hardened, concrete surface created by hydraulic pressures from repeated freeze-thaw cycles within the concrete. The expansive forces caused by the ice are exacerbated with deicing chemicals which increase saturation and the number of freeze-thaw cycles.
  • Spalling is when surfaces peel, pop out or flake off due to water entering the concrete.
  • Popout is a cone-shaped fragment of concrete caused when winter moisture freezes and expands, creating internal pressure that ruptures the aggregate surface.
  • Popoff is an exposed coarse aggregate particle that is caused by pressure buildup when the moisture in the mortar above the aggregate freezes. This is usually the result of poor quality concrete mixtures, improper finishing or inadequate curing. Deicing salts may aggravate this issue.

How You Can Prevent Problems
Preventive care for your concrete is important any time of the year, but it is especially vital during the winter months. Don’t wait until you can see big problems.

Save money and increase the lifespan of your Colorado property with HEXA’s concrete repair services.  On a regular schedule, our concrete experts will identify and repair what seem to be innocent cracks before they can do more damage.

Contact us today to let us know how we can help prevent problems tomorrow!

There are a number of misconceptions out there when it comes to concrete construction. Some concrete strengthening companies cut corners while others fail to use the latest techniques and top-of-the-line technology. There’s no question that you want the project done right the first time. That said, let’s debunk some of the most common industry myths.

  1. Concrete is impermeable – Here’s the deal: even the most dense concrete is somewhat porous. It can take anywhere from a few minutes to a few months for water and other substances to pass through concrete. You just never really know. To combat the issue, a company may choose a combination of chemical admixtures, as well as surface treatments such as sealers and membranes.
  2. Concrete’s strength and durability go hand in hand – Not necessarily. Concrete generally deteriorates because of corrosion of reinforcing steel, exposure to freeze-thaw cycles, and sulfate attack, among other natural events. It’s important to know that the key to durability is reducing permeability.
  3. Concrete can be placed on frozen ground without any issue – This is a topic of conversation in many areas, but especially in Colorado. The short answer is that precautions must be taken to protect concrete in less than ideal conditions and prevent future soil problems. Simply put, concrete placed on a frozen subgrade may settle unevenly when the subgrade thaws. Not surprisingly, this leads to cracking.
  4. Concrete that is flat and level after placing will always remain flat and level – Unfortunately, this isn’t factual either. The truth is that concrete will change in volume while setting, hardening, and drying. Slab edges that curl come about from differences in the moisture content and temperature at the top and bottom of the slab.
  5. Reinforced concrete won’t crack – Most people don’t realize that structural reinforcement is meant to hold the cracked areas together. As explained on Concrete Construction, “When concrete cracks, the tensile stress is transferred from the concrete to the steel.” This is what allows reinforced concrete to hold up against higher tensile loads than concrete alone.          

Reinforcing Concrete Solutions

Is your commercial space in need of concrete restoration? If so, you need to find a reliable company that can handle the project. HEXA has been serving the Denver metro area for more than two decades. What makes our team different is that we focus on delivering long lasting solutions in the most cost-effective manner. Never will we use a “one-size-fits-all” or “band-aid” approach.

Today, HEXA ranks as one of the top specialty repair contractors in the state. You can count on us to do everything from concrete replacement to concrete crack repair and everything in between. We aren’t about treating your project like a number, either. Our staff takes great pride in client satisfaction and our innovative communication process.

We understand how intimidating concrete repair can be. Not to worry, though. We try to keep things simple and walk you through the entire process. At HEXA, honesty, friendliness, and quality are always top of mind.

Don’t be tricked into believing any of these or other concrete construction myths. Contact us today to get started with your project.