No other construction company is built on an advocacy-first approach, and that’s what sets us apart. Find out more
Powered By Advocacy. Built on Trust.
Focused on You.
The 303 Companies DifferenceNo other construction company is built on an advocacy-first approach. Find out more
303 Companies provides full-service construction management and specialty trade solutions for residential and commercial clients across Colorado. We bring together two powerful forces: the vigilance of consumer advocacy and the precision of expert construction.
The 303 Companies Difference
303 Companies is your trusted General Contractor—delivering advocacy-driven solutions
for residential and commercial construction across Colorado.
We Lead with Advocacy.
We Plan with Purpose.
We Deliver with Precision.
Advocacy-Driven Project ExecutionWe lead every project with your best interest in mind—protecting your investment and delivering results that last.
Learn More About Us
It’s how we advocate, communicate, and deliver that makes us the partner you can trust.
Featured Projects
Our diverse portfolio represents decades of construction
experience backed by a passion for client advocacy
and outstanding service worthy of referrals.
Centennial Residential Painting
Complete interior residential refresh.
Client
Centennial Residential
Location
Centennial
Completed
05/24/2025
Thornton Residential Bathroom Remodel
Complete residential roof replacement
Client
Thornton Residential
Location
Thornton
Completed
08/15/2023
Littleton Commercial Concrete
Field House Roof Replacement
Client
Waterton Tavern
Location
Littleton, CO
Completed
08/20/2025
Good construction comes from good people, and all problems are solved by good solutions.
Full-Service Construction ManagementFrom initial planning to final walkthrough, we coordinate every detail with purpose, clarity, and client-focused care.
What Our Clients are Saying
Achieving client objectives, satisfaction and trust.
Amazing! 303 companies showed up when they said they would. Did a beautiful job. Priced right AND great customer service! Highly recommend! Thank you!!
We had 303 install our stamped patio and are SO happy with it! It looks so much better than the wood deck we previously had. Ken and his employees were great to work with and did a fabulous job. He had great suggestions in the design and knows what he’s doing. We’d recommend these guys to handle any concrete jobs for your home.
We are so thankful to you all for your service. The house looks wonderful and we love the colors! The guys were so personable, professional and respectful to our property! They also helped out beyond their scope and they were so neat & clean afterwards! Thank you again for coming to our aid so quickly.
303 companies came the same day to give me an estimate which was really nice and had someone out the next day to start my driveway. The gentlemen that gave me the estimate was really nice and polite.
The most important thing 303 Companies did was listen to what we wanted in our kitchen. They were professional and easy to work with. We are planning to do more to our house later this year and will definitely be using them.
Our Founders Message
Hello, I’m Chris Kane, Founder & CEO of 303 Companies.
At 303 Companies, hiring us means gaining a true advocate—we’re dedicated to earning your trust at every step, protecting your investment, and delivering with integrity. Whether it’s your home or business, we offer a one-stop solution for full-service Construction Management and licensed General Contracting—along with specialized services through our expert divisions in Painting, Asphalt, Concrete, Interlocking Pavers, Windows, and Garage Doors.
Get In Touch
PARTNERSHIPWe value every opportunity to serve and build lasting relationships with the people and communities we have the privilege to serve.