About AB Underground


AB Underground specializes in underground utilities, earth moving and stream and creek restoration/stabilization. Servicing municipalities and DOT civil construction in Colorado and surrounding states. Working in the harsh Rocky Mountains has shaped our crew to become creative and crafty solutionists that live by the motto “if there is a will there is a way.” From working on rugged mountainous sites to large scale highway projects the team at AB Underground doesn’t quit until the job is done right. Our team at AB Underground strives to develop and maintain lasting relationships with our clients.






About AB Underground


AB Underground specializes in underground utilities, earth moving and stream and creek restoration/stabilization. Servicing municipalities and DOT civil construction in Colorado and surrounding states. Working in the harsh Rocky Mountains has shaped our crew to become creative and crafty solutionists that live by the motto “if there is a will there is a way.” From working on rugged mountainous sites to large scale highway projects the team at AB Underground doesn’t quit until the job is done right. Our team at AB Underground strives to develop and maintain lasting relationships with our clients.


Our Services

Recharge Ponds, Reservoirs, Bank Stabilization:


AB Underground offers turnkey services from design to construction of water detention and recharge ponds and reservoirs for private, commercial and government entities. AB Underground is also experienced in reservoir breach repairs, slurry wall construction, grouted riprap rundown channels, riprap bank stabilization pond liners, drainage and filtration systems. with exactly what each specific job requires.

Earthwork, Grading, Highway Construction:


With precision, and efficiency, AB Underground specializes in highway, street and road construction for Municipalities and Government entities in Colorado and the surrounding states. Our services include sub excavation, embankment placement, shouldering, highway widening, full depth pavement reconstruction, base placement, and precise finish grading.

Bridges, Structure Excavation and Backfill:


AB Underground works alongside structural bridge contractors providing excavation and backfill services for abutments, bridges, overpasses and underpasses. Our experienced team is highly trained in managing challenging site conditions, strict time constraints and high profile projects.

Pedestrian Trails, Bike paths, Parks and Open Space:


AB Underground has constructed countless miles of pedestrian trails, bike paths maintenance and access roads throughout northern Colorado. AB Underground’s services also include parking lot construction, park facilities and wildlife habitat restoration for open space grants, natural area conservation programs and municipal parks and trail departments.

Storm water infrastructure, box culverts, inlets, manholes:


AB Underground has unmatched experience in stormwater infrastructure. Our team is experienced in a wide range of sizes and materials, including RCP, CMP, PVC, and HDPE. We also specialize in pre-cast and nyloplast inlets and manholes. AB employs GPS machine control on all excavation equipment to ensure accurate flow rates, inverts, and elevations for every system we install.

Fusion Welding HDPE Pipe and Waterlines:


AB Underground is one of the few contractors in Colorado and neighboring states certified and equipped for fusion-welded HDPE waterlines. With extensive experience in both potable and non-potable systems—whether gravity-fed or pressurized—we offer comprehensive turnkey services. Our capabilities include everything from certified welding to the complete installation of HDPE lines ranging from 1” to 36”.

Our Services

Storm Sewer Drainage Pipes


AB Underground installs multiple different types of storm sewer drainage pipes from Reinforced Concrete Pipe (RCP) to ADS corrugate polyethylene pipe. We are dedicated to providing our clients with exactly what each specific job requires.

Inlets, Outlets


AB installs any type of inlets and outlets structures from precast to cast in place. Our services include, excavation, structure removal, structure placement, and compacted backfill. AB understands that inlets/outlets are a crucial step in providing proper storm water conveyance and takes extreme pride in utilizing new technology to ensure that the demands of each project are met.

Box Culverts


AB installs any size of precast box culverts as well as cast in place. Since AB handles every aspect of the job including, structure removal, muck excavation, dewatering, sub grade preparation, we are able to offer turnkey solutions to our clients.

Water Quality Ponds


Water quality ponds are an excellent way to collect and improve water quality. AB excavates as well as maintains water quality ponds that are used for temporary use as well as permanent ponds.

Drainage Ways


AB has an extensive background in erosion control, therefore we understand the importance of properly drained sites. Drainage ways can be used to not only enhance drainage of your sites, but also enhance the landscape. We construct our drainage ways to perform perfectly, as well as add to the aesthetics of your site.

Site Grading


With today’s strict rules and regulations concerning storm-water runoff and run-on, proper site grading is key to ensure our clients are always in compliance. AB utilizes new grade control technology that allows us to work more efficiently, and offer impeccable results every time.

Waterlines


AB Underground is an experienced leader in water pipeline installation. We work with our clients from project planning to project completion. We install domestic water, fire hydrants, and water meters.

Excavation


AB Underground offers turnkey site excavation. From large commercial and residential lots, to small pond excavations we have the knowledge and ability to cover any sized project.

Pond construction


We are farmers ourselves and understand how precious water can be. We offer complete pond construction, to pond maintenance. From large agriculture ponds, to small duck ponds, AB has you covered. Aside from construction we offer maintenance services to fix ponds from leaking. Having wildlife on your property can be a great way to add resale value. Let us give you quote on your wildlife habitat that you have been dreaming of.

Pond Liners


AB Underground installs and repairs pond liners. Pond liners are an excellent way to ensure that the water you put in your pond, is there when you need it. Native soils tend to be a way for water to seep out and potentially ruin precious farm ground around your pond. Pond liners are one of few ways to guarantee that your pond will not leak. Pond liners are available UV resistant.

Driveway Construction/ Maintenance


AB Underground offers driveway construction and maintenance. We understand that life is rough enough as it is, but your driveway doesn’t have to be! We can fix any driveway, or even construction a new one. Turn that rough two track into a beautiful road that your neighbor’s will envy.

Agriculture Upgrades


Thinking of building a new barn for equipment storage? Let AB ensure your building site is properly prepared. You don’t want to erect your dream shop and find out later that your building location doesn’t drain properly. Let AB Underground grade and construction any needed ponds, or waterways to protect your investment. Is your irrigation systems in need of repairs or upgrades? Let the team at AB Underground construct new head-gates, repair any existing head-gates, construct new water ways to ensure that when it’s time to irrigate, your system is as ready as you are. Is your property in need of a new riding arena? Let AB handle it. Wet arena got you irritated? Let AB deliver and spread arena sand so that your arena dries out quicker and will not get hard like traditional soils tend to do.

Livestock Pen Cleaning


Having livestock in a dirty environment can be cost you thousands of dollars per year. Sick animals are not productive animals. Let us clean your livestock pens. We offer manure loading, spreading, and trucking services.

Roadway Construction


AB Undergrounds extensive knowledge in roadway construction is unparalleled. From major highway construction to scenic gravel roads and trails we understand the importance of prep work, stability and minimal maintenance when it comes to the foundation of a roadway.

AB Underground is certified as a Minority/Women-Owned Business Enterprise (MWBE) for the City and County of Denver and is certified as a Disadvantaged Business Enterprise for the Colorado Department of Transportation. AB Underground is also recognized as a Small Business Enterprise by the City and County of Denver. 

DBE_MBE_SBE Certified

We work with our clients from the design phases through to the completion of every project.


AB Underground has a knowledgeable staff which enables us to provide our clients with solutions to their problems before they become an issue. We work with many local municipalities and local government agencies and specialize in DOT specifications and compliance. Call or email us today to discuss your upcoming projects.



We work with our clients from the design phases through to the completion of every project.


AB Underground has a knowledgeable staff which enables us to provide our clients with solutions to their problems before they become an issue. We work with many local municipalities and local government agencies and specialize in DOT specifications and compliance. Call or email us today to discuss your upcoming projects.


Request A Quote


Includes a FREE consultation *


    ** For your FREE consultation you will receive a phone call from a member of our team to discuss the details of your project. From there, we will assess your requirements and project needs, prepare a customized quotation and contact you at the earliest opportunity.

    Request A Quote


    Includes a FREE consultation *


      ** For your FREE consultation you will receive a phone call from a member of our team to discuss the details of your project. From there, we will assess your requirements and project needs, prepare a customized quotation and contact you at the earliest opportunity.