Built on Quality. Driven by People.

Cullen Insulation: A Company Committed to Excellence

At Cullen Insulation, our strength lies in our people. From the insulation we install to the relationships we build, everything we do comes back to one simple promise: we are committed to excellence. That means showing up, doing things right, and treating people the way we’d want to be treated—every single time.

Cullen Insulation technician installing vapor barrier plastic sheeting over fiberglass batt insulation inside a residential building under construction.

Mission Statement

To build lasting relationships with our customers and create a workplace where our employees thrive, by delivering the highest quality insulation solutions.

Vision Statement

To be the most trusted name in insulation across our service areas and be known for our craftsmanship, service, and a team-first culture that drives results.

Our Core Values

Excellence in Everything

We don’t cut corners. Whether it’s the quality of our work or how we treat a customer, we aim to do things right the first time. From our managers to our expert installers, our team takes pride in going above and beyond, and our customers take notice. Many say we’re the best subcontractor they work with.

Always Improving

We’re not afraid to step up when something goes wrong. Even after a job is done, we are available to help our customers resolve issues quickly and smoothly. It’s that kind of accountability that sets us apart from the competition.

Communication that Counts

We keep communication clear, honest, and timely. Our team updates customers regularly, respects their time and the job site, and keeps projects on track. That’s one of the reasons builders and homeowners keep coming back—they trust us not just to deliver, but to keep them informed every step of the way.

People First

We believe our employees are the key to our success. We focus on identifying their strengths and giving them the tools and opportunities they need to grow. From competitive pay and full benefits to paid time off, performance bonuses, and training, we take care of our team—because when they succeed, we all do.

Giving Back to Our Community

We proudly give back to the communities that support us. Our employees and customers are vital parts of the areas we serve, and we’re honored to return that support in many ways. The Cullen Children’s Foundation, which helps children with healthcare challenges, is especially close to our hearts. We support them with an annual gift and have previously served on several committees over the years. We also actively support local youth sports and the United Way. Building a strong community starts with giving back.
Three Cullen Insulation workers wearing safety vests standing in front of company trailer in Montana with certificate

Recognizing Our Team 

We believe hard work deserves recognition. That’s why every quarter we nominate an outstanding employee from each of our branches for the Owens Corning Certified Energy Expert® award. We also offer performance bonuses for team members who go above and beyond, and we hold regular team meetings to share updates and celebrate wins together.

What Makes Us Different 

Cullen Insulation is proud to be the only Owens Corning Certified Energy Expert® in our respective markets—and one of the most experienced insulation companies around. But what truly sets us apart is our team. Our culture of respect, honesty, and high standards builds trust with customers that they can see with every project and interaction.  

Interested in joining our team?