Commercial Concrete

Serving the Colorado Front Range – Longmont, Denver, Boulder & Fort Collins

GR Concrete Construction LLP is a trusted commercial concrete subcontractor with more than 30 years of experience serving general contractors, developers, and municipalities across Colorado’s Front Range. From structural foundations to large-scale flatwork and exterior sitework, we deliver turnkey concrete solutions built to specification – on time, on budget, and with unmatched craftsmanship.

What We Do

We provide complete Division 03 and select Division 32 concrete services for commercial, industrial, and municipal projects.

Turnkey Commercial Concrete

Comprehensive concrete packages include:

  • Building Foundations
  • Structural & Architectural Flatwork
  • Exterior Sitework & Paving
  • Concrete Demolition, Removal & Replacement
  • Laser-screeded Floors (Super-Flat)

Our team handles projects from early layout to final pour, coordinating crews, equipment, and schedules to streamline the process for project managers.

GR Concrete Construction Commercial Concrete

Division 03 – Building Foundations

Strong buildings start with precise, durable foundations. GR Concrete Construction LLP specializes in structural concrete for commercial and industrial facilities.

Foundation Capabilities:

  • Cast-in-place concrete foundations
  • Footings, stem walls, retaining walls & cast-in-place walls
  • Caissons, piers & gradebeams
  • Columns, beams, gradebeams & other structural members
  • Concrete foundation repairs/reinforcements
  • Demolition and replacement of existing foundations

Division 03 – Commercial Concrete Flatwork

With decades of expertise and advanced finishing technology, we pour and finish thousands of square feet of flatwork annually across the Front Range.

Flatwork Services:

  • Slabs on grade
  • Structural slabs
  • Slabs on metal deck
  • Slabs on void
  • Concrete steps and concrete filled metal pan stairs
  • Parking garages & structural deck systems
  • Factory, warehouse & office floors
  • Stairwells, stoops & apartment entries

Laser Screed Concrete Floors

Our use of laser screed technology ensures ultra-flat, level, high-strength floors ideal for:

  • Warehouses
  • Distribution centers
  • Manufacturing facilities
  • Retail spaces

The automatic laser control system guarantees precision, consistency, and faster production – resulting in stronger slabs and minimized floor variance.

Division 32 – Exterior Concrete Sitework

We support commercial and municipal development with durable, high-quality exterior concrete improvements.

Sitework Capabilities:

  • Demolition/Removal & replacement
  • Concrete paving (parking lots, streets, alleys, drive lanes, parking stalls)
  • Concrete walkways & sidewalks
  • Concrete curb ramps / ADA ramps
  • Curb & gutter
  • Valley pans & crosspans
  • Drive lane paving
  • Parking stall paving
  • Entrance drive approaches
  • Retaining walls
  • Concrete drive approaches
  • Removal & replacement

Municipal and Government Concrete

We partner with municipalities, school districts, and public agencies throughout Colorado. Our team understands regulatory requirements, permitting, inspections, and the safety standards needed for public-sector work.

Public Sector Services:

  • New municipal construction
  • Parking lots & parking structures
  • Concrete building foundations
  • Sidewalks & walkways (installation & repair)
  • Parks, plazas & recreational facilities
  • Curb & gutter systems
  • Saw cutting, demolition, removal & replacement

Request a Commercial Concrete Estimate from GR Concrete Construction

  • 30+ years serving Longmont and the Colorado Front Range
  • Field engineers with construction layout capabilities from primary survey control
  • Experienced crews, skilled workforce, skilled operators
  • Proven reliability with commercial GCs and public agencies
  • Quality workmanship from pre-construction through final inspection

Contact us today for a free estimate.

“On behalf of Brinkmann Constructors and the Wind Crest team, we wanted to extend our appreciation for a job well done on the Wind Crest RB2.2 project in Highlands Ranch, CO. Your assistance lead to a successful turnover of this project with a highly regarded client. Brinkmann Constructors appreciates your firm’s hard work, customer service, quality, and integrity shown on this project. We look forward to working with your organization on future projects.”

Lucas Rottler (Project Manager)
Brinkmann Constructors

“We had the privilege of working with GR Construction, LLP on our projects over the last few years. GR is a “Turn-Key Concrete” contractor that specializes in site concrete, cast-in-place structural foundations, and building flatwork for both slab-on-grade and elevated slabs. Their experience and expertise in their foundation work is excellent and true to line and grade. Their layout work is spot-on and they can often find errors in construction documents and address issues prior to concrete placement, thus eliminating extra cost to replace misplaced concrete, anchor bolts, and embeds. GR Construction, LLP can be relied upon to meet or exceed schedules when given the opportunity to do so. Their knowledge and performance of structural concrete work is some of the best we have had on our projects and we continue to solicit them for our work. Please feel free to contact me should you have any questions and/or concerns regarding GR Construction’s abilities to perform as a structural concrete subcontractor.”

Chirs Alcorn – LEED AP President
Alcorn Construction, Inc

“I have had the privilege of working with GR Construction, LLP on my projects over the past several years. GR performs a “Turn-Key Concrete” subcontract that includes Site Concrete, Cast-in-Place Structural Foundations and Building Flatwork for both Slab on Grade and elevated slabs. Their experience and expertise in their foundation work is excellent and true to line and grade as well as correct anchor bolt placement. Their layout work is pot on and often results in finding errors in the documents that can be addressed prior to concrete placement, thus eliminating extra cost in having to replace misplaced concrete work and/or anchor bolts. On the occasion issues did arise they were quick to address the issue and correct it. GR Construction, LLP can be relied upon to meet or exceed schedules when given the opportunity to do so. Their knowledge and performance of structural concrete work is some of the best I have had on my projects and we continue to solicit them for our work. Please feel free to contact me should you have any questions and/or concerns regarding GR Construction’s abilities to perform as a structural concrete subcontractor.”

Matt Lamar – President
L4 Construction

“We have had the privilege of working with GR Construction, LLP on our projects over the last several years. GR performs a “Turn-Key Concrete” subcontract that includes Site Concrete, Cast-in-Place Structural Foundations and Building Flatwork for both Slab on Grade and elevated Slabs. Their experience and expertise in their foundation work is excellent and true to line and grade, as well as, correct anchor bolt placement. Their layout work is spot on and often results in finding errors in the documents that can be addressed prior to concrete placement, thus eliminating extra cost in having to replace misplaced concrete work and/or anchor bolts. GR Construction, LLP can be relied upon to meet or exceed schedules when given the opportunity to do so. Their knowledge and performance of structural concrete work is some of the best we have had on our projects and we continue to solicit them for our work. Please feel free to contact me should you have any questions and/or concerns regarding GR Construction’s abilities to perform as a structural concrete subcontractor.”

Curt Brinker – CEO
Evergreen Industrial

“G.R. Concrete Construction LLP has been a customer of Bestway Concrete & Aggregate for 15 years. During their 15 years as a customer, I have been their sales associate and together we have completed numerous commercial projects. G.R. has proven to be one of the best contractors I have ever worked with. They specialize in flat floors, however, foundations, curb and gutter and exterior work also seems to be their specialty. During our partnership, we have completed numerous box stores, such as, Super Wal-Mart and Super Target stores. Other projects we have worked together on are: The United Stated Army Reserve Center in Windsor, Wheatherford Manufacturing in Longmont and Mountain Dairy in Aurora. We are currently working together on 3 additional commercial projects and they are all on schedule and going smooth. G.R. Construction is a top quality, professional, and a company easy to work with. I would recommend G.R. Construction, LLP for all of your commercial needs. Feel free to call me if you would like to talk more about the work that G.R. Construction performs. Thank you for your time.”

Brenda Watts – Senior Sales Associate
Bestway Concrete and Aggregate

“Brikmann Constructors has been working with GR Construction, LLP on multiple projects over the last several years. GR Construction, LLP typically performs a “Turn-key Concrete” subcontract that includes site concrete, cast-in-place structural foundations and building flatwork (both slab on grade and elevated decks). In recent years, they performed a turnkey concrete subcontract on the WindCrest Extended Care Center building which included a complex foundation layout including 5 building wings with interior foundations and stemwalls for load bearing structural steel walls. The subcontract also included slab on grade, (3) elevated decks, and site concrete package. Their experience and expertise in their foundation work was apparent in the quality of their work, knowledge of their site foreman, and involvement of upper management including the owner of the company. Their layout and anchor bolt placement was accurate and their onsite field staff was able to identify discrepancies in the construction documents to avoid errors and re-work. GR Construction, LLP met the schedule expectations on this project and have exemplified customer service meeting the needs of us as a general contractor. Their knowledge and performance has been noted as we continue to solicit them to perform on our projects. Please feel free to contact me should you have any questions and/or concerns regarding GR Construction, LLp’s abilities to perform as a structural concrete subcontractor.”

Lucas Rottler – Project Manager
Brinkmann Constructors

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