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


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.

In 1999 Mike McDonald founded McDonald Waterproofing and Restoration with a vision to bring honesty, friendliness, and concrete repair services of the highest quality to Colorado’s Front Range. Established on straightforward values of integrity, doing the job right the first time, having fun, and friendships with team members and clients, we’ve built a solid, trusted reputation throughout Colorado.

January 2020 marked the company’s 20th anniversary. Along with achieving that milestone, and in anticipation of the upcoming sale and transition, the company was renamed HEXA – a McDonald Company. The new name represents the excellence and efficiency of the team and the strength under pressure that characterizes our specialty repair solutions.

Now the company marks yet another milestone. Mike McDonald has announced his retirement and has sold the company to Joe Keller. Joe has worked in the concrete repair industry more than 20 years, many of those spent with Mike, helping grow HEXA into the company it is today. He has served the last three years as President and COO, building on the vision that Mike created more than two decades ago.

“I’m proud of this company and the entire team who helped us get to where we are today,” said Mike. “Joe is a strong leader who has been instrumental in our growth, and it is with great pride and confidence that I pass the baton, and ownership of this great company, to his continued leadership.”

“I’m honored that Mike has entrusted me with his legacy,” commented Joe, HEXA’s new Owner, President, and CEO. “HEXA has the hardest-working people and the best customers. It’s a privilege to take over ownership as we grow the company, do the work we love, and continue to make lasting friends along the way.”

In 2021, we watched our company grow — not only welcoming new clients and completing many great projects, but also expanding our team. We created positions, brought in additional experts, and focused on ways to make the HEXA family stronger and more cohesive.

To set a marker for continued growth and expansion, we started a new tradition in 2021; during our annual Christmas party, we give away a motorcycle to an employee who wins a raffle by having their name drawn from a hat. Each year, as we grow, so will the bike be bigger and better!

This year, Braulio Alvarez was super-excited to win a fun, Coleman 200cc minibike. With a top speed of about 20 mph, it’s great for zipping around the neighborhood or running errands. Braulio has been a valued part of the HEXA team for a little more than a year, working as a technician/laborer. Other employees also won fantastic items — a 65-inch Samsung TV, Yeti cooler, and gift cards. All HEXA staff members received Wyld Gear water bottles and cups. This new tradition celebrates what being part of HEXA is all about – the fun and camaraderie of working together as a solid team.

With a lot of projects already booked for 2022, we are fueled by the energy and excitement that comes with working in a positive environment, growing along with great people who are dedicated to the values on which this company is built, and serving customers who have also become cherished friends. We stand behind each other and have our customers’ backs in protecting their concrete investments. We anticipate great things and look forward to sharing more good news as the year unfolds. Stay tuned for 2022’s bigger, badder bike!

It has been just over a year-and-a-half since we celebrated our 20th anniversary and renamed our company to HEXA™ – A McDonald Company to mark the end of a successful 20 years and the beginning of a new phase in our growth. We chose the HEXA name and logo because:

  • Like the hexagon, it shows that we are stronger under pressure, delivering the highest quality solutions.
  • Like the strong community bond of bees within a hive, the hexagon-shaped cells of the hive represent our commitment to communicating and building solid relationships with our customers.

We’re the same great company, run by the same people, with the same values. As one of the most well-respected locally owned and operated concrete repair companies in Colorado, it’s no surprise that word gets out about why it’s great to work with, and for, HEXA!

We’re excited that over the last 18 months we’ve grown and added new team members. We welcome these highly experienced and skilled people to our team. They’ve been in the industry for decades and are eager to work for a fun and progressive company.

If you know of anyone with concrete repair expertise who shares our values of delivering honest, friendly, quality service every time and is looking for a positive, fun company, tell them to check out our job openings!

We are deeply grateful for our customers who put their trust in us to keep their concrete structures strong, resilient, and stable. We’d welcome the opportunity to get to know you better, help solve your concrete issues, and become a resource you can continue to trust. We look forward to serving you!

As you’ve probably seen in the news, the construction industry as a whole is experiencing a shortage of materials and supplies. We’d like to shed some light on the situation and how your future projects could be affected.

There are multiple reasons for these shortages including a record level of housing starts, raw material depletion, and the pandemic’s impact on both shipping and manufacturing.

We are working hard to stay informed about the availability of materials and to maintain adequate supplies on hand when possible. We are also doing everything we can to keep our prices competitive.

You can stay ahead of the curve by getting in touch now to let us know your expected needs for repairs and new projects so we can plan as far out as possible. If you are not sure of your needs, schedule a free inspection and we can help prioritize the urgent projects.

One thing that we’re sure of in all of this uncertainty, is our commitment to building strong relationships with our customers, a fast response to your needs, and getting your projects done on time according to our quality standards. We value your ongoing business and friendship. Please don’t hesitate to contact us if you have questions.

We’ve encountered some unexpected curves in the road lately but we’ve leaned into them and kept our focus on making the most of the ride. As is likely the case with you, too, we’re learning from our experiences, finding ways to adapt to changing circumstances, and keeping our eyes open for opportunities.

We’re reminded often of what is important. One of those for us – the people we do business with and work with every day. We’ve known many of you for years and are grateful to call you friends.

We’re seeing things start to open up again. Before buildings and parking structures get too busy, we’d like to help you make the most of what may still be a little downtime by coming by to do a complimentary inspection of your concrete surfaces. While there are fewer people using your buildings and fewer cars in your parking structures, we can easily inspect even areas that may soon be less accessible.

Now – during the warm, dry months of summer – is also a perfect time to consider waterproofing projects. We’re happy to drop by to discuss ways you can get ahead of the game and prevent future costly repairs of cracking, spalling and other damage caused by water, snow, and temperature changes.

We’ve been known for our solid, long-term concrete solutions in the Rocky Mountain Region for more than two decades. Our teams take pride in doing it right the first time, on schedule and on budget.

Contact us today and we’ll schedule a time to give your property a free inspection, help you prevent small problems from becoming big ones, and budget for the future. We’d also love to catch up on what you’ve been up to and how you’re doing – whether concrete-related or not. We can all use some support now and then and look forward to moving forward with you. We will all get by with a little help from our friends.

At a trade organization meeting, we learned about a situation where a local women’s shelter desperately needed concrete repair. We were more than happy to help with the project.

“In a time when many people are stepping up to support each other by finding needs and filling them, we feel privileged to donate our time, talent and resources,” said Joe Keller, President and COO of HEXA™- A McDonald Company.

Sacred Heart House of Denver helps homeless single women and single mothers regain self-sufficiency through transitional housing and education programs. However, recently they became in dire need of assistance themselves. Over the years, heavy garbage trucks and other usage had substantially damaged the entry way and trash collection areas at Sacred Heart House. The freeze-thaw cycles in Colorado had caused the damage to worsen over time and the conditions were no longer attractive or safe.

“Funding has been increasingly challenging. The City of Denver ended financial support and foundation grant money has been reduced. Sacred Heart House now relies on smaller awards from foundations, grants from churches, and support from loyal individual donors. The recent, unprecedented situation with which we are all dealing has made those challenges even greater,” explained Sacred Heart House of Denver’s Associate Director, Garrett Singer.


The HEXA team was quick to respond, removing the concrete in the entry way and trash areas. Then we installed an 8-inch thick slab that will better stand up to the usage those areas receive.


Mike McDonald, HEXA Founder & CEO, said, “It was an opportunity to repair more than concrete. We were honored to be able to help a group that does so much to change the lives of people in Denver who are struggling. Giving enriches the life of the giver as much as that of the recipient.”

Sacred Heart House still needs help in the form of:

  • Financial donations

Financial donations are matched up to a total of $35,000, now through May 2020. These can be made online or mailed to Sacred Heart House at 2844 Lawrence Street, Denver, CO 80205

  • Item donations

Items below can be dropped off or shipped, including directly from Amazon. They need:

  • Food – especially rice, pasta, peanut butter, canned meats, other canned goods
  • Paper products
  • Cleaning and sanitizing products
  • Hygiene and toiletry items
  • Gift cards for grocery stores, Walmart or Target
  • Or see a complete needs list
  • Volunteers

Please email or call 303-296-6686.

We encourage everyone to take the opportunity to fill the needs you see, whether at Sacred Heart House or in your own neighborhood. We are all in this together and it’s an opportunity to give back and support each other as never before.