A concrete walkway is being built in front of a house.

Concrete Contractors In Longmont, CO.

Reliable Concrete Services in Longmont, CO

J Star Concrete, Longmont, CO, provides concrete services, including the installation of driveways, porches, stamped and colored concrete, steps, individual floors, basement floors, and garage floors. The company assists clients with excavation and hauling services, as well as constructing retaining walls up to four feet high. Call us now to transform your spaces. 

Our Concrete Services

A large white house with a large driveway leading to it.

Driveways & Porches:

Installation and repair of concrete driveways and porches.
A brick walkway with a lamp post in the foreground

Stamped & Color Concrete:

Decorative concrete options including stamping and coloring for aesthetic enhancement.
A set of concrete stairs with a diagonal pattern

Steps & Individual Floors:

Concrete work for steps and individual floor projects.

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An empty room with wooden shelves and a window

Basement Floors & Clean Up:

Concrete flooring for basements and post-construction cleanup

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A garage with the door open and a ladder in it.

Garage Floors & Staining:

Concrete installation and staining for garage floors.

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A man wearing a hard hat and overalls is digging with a shovel in a room.

Excavating & Hauling Services:

Excavation services for various projects and hauling services for debris removal.

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A stone wall with stairs leading up to a house.

Why Choose Our Services:

Free Estimates

21 Years of Experience.

Family-Owned & Operated.

BBB Accredited Since 2015.

Bonded, Licensed, and Insured. 

Leave Us a Review!

⭐⭐⭐⭐⭐

I've done work with Juan at Jstar for probably 20 years now for foundation and flatwork projects. He has been consistent and timely. His ability to do excavation, footings, walls, and slabs makes him a easy recommendation for projects.


- Jonathan W.

⭐⭐⭐⭐⭐

I started using Juan and J Star 8 years ago and he and his crew do amazing work

He’s prompt, honest, extremely talented and heard working

He shares ideas and listens to ideas

I have recommended him to my family, friends and colleagues and will continue using his services

Thank you Juan!


- Pete E.

⭐⭐⭐⭐⭐

Juan at J Star Concrete has worked on all my jobs that have required excavation, foundation, piers, flat work, and more. He is very skilled, hardworking, and fairly priced. I would highly recommend him to anyone needing this type of service.


- Mark K.