Landscape & Design Specialists in Longmont, CO
Serving Boulder, Larimer & Weld County with Design, Build, and Maintenance Services
20+ years of Experience
Data-Driven Custom Designs
Eco-Conscious Approach
Design-Build-Maintain
20+ years of Experience
Data-Driven
Custom Designs
Eco-Conscious Approach
Design-Build-Maintain
Locally Established. Front Range Focused.
Welcome to AGT Landscape & Design in Berthoud, Colorado
We are a Berthoud-based landscape company serving Berthoud, Longmont, Loveland, and surrounding areas. Owner Alex Tanner built AGT around one straightforward idea: a landscape company that truly knows the Front Range should design it, build it, and maintain it. Our crews carry OSHA 10 cards, and operate under $5 million in general liability coverage. Whether you need a full yard redesign in Loveland, a patio installation in Johnstown, or commercial snow removal in Firestone, AGT delivers professional results with a single point of accountability from start to finish.
About AGT Landscape & Design
A Northern Colorado Landscape Company Built on Local Knowledge
AGT Landscape & Design was founded and is led by principal Alex Tanner, operating out of Longmont and Berthoud, Colorado. Our work is shaped by the specific demands of the Front Range environment: alkaline clay soils that drain poorly, high-altitude UV exposure that degrades materials quickly, and unpredictable weather patterns that can swing from 70 degrees in February to a heavy March snowstorm. We do not apply generic landscaping solutions to Colorado properties. Every project begins with site discovery, including soil structure analysis, utility locates, and permit management, so that what we build is engineered to last through the region's most demanding conditions.

What Sets Us Apart
Built for Colorado. Backed by Expertise.
AGT is not a national franchise applying cookie-cutter solutions to Front Range properties. We are a locally established company with deep roots in Northern Colorado, and every decision we make, from material selection to irrigation scheduling, is shaped by the specific conditions of this region.
Local Ownership
Principal Alex Tanner leads every project from the Longmont and Berthoud offices. When you work with AGT, you work with a team that knows the soil under your property and the ordinances governing your municipality.
3D Design Visualization
We offer 3D photorealistic renderings and scaled CAD blueprints so you can walk your future landscape before a single shovel breaks ground. This speeds HOA approvals and eliminates costly phasing confusion.
Precision Laser-Grading
Our grading crews work to a tolerance of plus or minus 0.25 inches. This level of precision prevents the foundation water issues that commonly result from improperly graded Front Range lots with expansive clay soils.
Smart Water Management
We use conservation-forward irrigation technology in our spray and drip systems to help with environmental sustainability and sustained water savings
Battery-Powered Equipment
Our low-emission, battery-powered equipment fleet allows AGT to operate in noise-sensitive zones including medical campuses, office parks, and high-density HOA communities where gas-powered crews are restricted or unwelcome.
Transparent Pricing
Foundation Finish packages start at $8,000 to $10,000. Our design and installs fall into hat range not just designs. We do take on a wide range of jib sizes and scope form 5,000-20,0000 plus. Full yard designs range from $25,000 to $40,000 and up. A 10% bundle discount applies to full-service packages, and a 5% referral incentive is available for annual maintenance contracts.
Commercial and Residential Services
Landscaping Solutions for Every Property Type in Northern Colorado
AGT Landscape & Design serves both commercial and residential clients across Boulder, Larimer, and Weld Counties. Our commercial and residential service lines are built to meet the specific demands of each property type, from HOA communities and office parks to custom homes and new construction builds.

Commercial & Residential Landscaping Maintenance
Weekly mowing at 3 to 3.5 inches, aeration, overseeding, organic fertilization, and seasonal care from April through November. Commercial clients receive performance dashboards to track water savings and work tickets.

Commercial & Residential Landscaping Design
Custom 3D renderings and fly-through videos, site discovery including sun angles and soil analysis, utility locates, permit management, and CAD-based as-built plan delivery for both residential and commercial properties.

Commercial & Residential New Construction Landscaping
Precision laser-grading to plus or minus 0.25 inches, HOA compliance submittals, Certificate of Occupancy deadline management, and full foundation finish packages for production builders and custom home projects.
Commercial & Residential Snow Removal
24/7 snow removal, de-icing, and storm monitoring for office parks, retail centers, HOA communities, and residential properties throughout Northern Colorado's winter season.
Client Reviews
What Northern Colorado Property Owners Are Saying About AGT
From new construction builds in Loveland to backyard transformations in Berthoud and commercial maintenance in Firestone, AGT Landscape & Design with a 5 Star reputation has earned the trust of homeowners, builders, and property managers across the Front Range. Read what our clients have to say about working with a locally owned team that stands behind its work.
Frequently Asked Questions
Common Questions About AGT Landscape & Design
What areas does AGT Landscape & Design serve in Northern Colorado?
AGT Landscape & Design is based in Longmont and Berthoud, Colorado, and serves Boulder, Larimer, and Weld Counties. Key cities in our service area include Boulder, Longmont, Erie, Lafayette, Louisville, Superior, Lyons, Loveland, Fort Collins, Windsor, Johnstown, Firestone, Niwot, and Broomfield, as well as the northern Denver metro. If you are unsure whether your property falls within our service area, reach out and we will confirm quickly.What does the Design-Build-Maintain process mean for my project?
It means the same team handles your project from the first site visit through ongoing maintenance. We do not hand your project off to a separate installer or maintenance crew. The team that analyzes your soil and drainage grades is the team that builds your patio and activates your irrigation each spring. This eliminates scheduling gaps, miscommunication, and liability hand-offs that occur when separate contractors are involved. It also means we have a direct stake in the long-term performance of everything we install, which is why we back our work with a 2-year hardscape and irrigation warranty.How does AGT handle clay soil and freeze-thaw conditions on Front Range properties?
Clay-heavy soil is one of the most common challenges on Front Range lots. It drains poorly, expands with moisture, and can damage foundations and hardscape if not addressed correctly. Before any installation, we amend soil with compost, expanded shale, and mycorrhizal inoculants to improve drainage and root health. We laser-grade every site to a tolerance of plus or minus 0.25 inches to prevent water from pooling near foundations. For hardscape, we specify Belgard pavers and Colorado buff flagstone with properly prepared base materials rated to handle the region's 70 to 90 annual freeze-thaw cycles.Can AGT help with HOA approval and municipal water-use requirements?
Yes. We prepare and submit HOA compliance documentation, attend design-review meetings when needed, and deliver water-use reports that satisfy requirements like Boulder 1041 and Fort Collins Water Wise. For new construction clients, we manage permit applications and coordinate with municipalities to keep projects on schedule. Our 3D renderings also speed up HOA approvals by giving review boards a clear picture of the finished design before construction begins.What warranty does AGT offer on its landscaping installations?
AGT backs all hardscape and irrigation installations with a 2-year warranty, which is double the one-year standard common in the landscaping industry. This warranty reflects the engineering precision behind every project, including proper soil amendment, precision laser-grading, and the use of materials specified for Colorado's climate. For sod installations, we provide a 2 to 4 week rooting guarantee on locally grown, fresh-cut bluegrass. Our confidence in the warranty comes from the fact that we also maintain the properties we build, so we have every incentive to get the installation right the first time.How much can smart irrigation reduce my water bill in Colorado?
EPA WaterSense smart controllers paired with weather-based sensors and soil-moisture data can cut residential outdoor water use by 38 to 40 percent compared to conventional timer-based systems. For commercial properties that convert to xeriscape designs, water reductions of up to 60 percent are achievable. Smart irrigation audits, which we offer as a mid-season service, can identify inefficiencies in existing systems and lower water bills by up to 30 percent. Given Colorado's water restrictions and the cost of outdoor water use during summer months, these savings add up quickly across a single season.Does AGT work with production home builders and new construction projects?
Yes. We regularly work with production builders and custom home developers across Northern Colorado. New construction landscaping requires tight coordination with finishing trades to hit Certificate of Occupancy deadlines, and our Design-Build model is built for exactly that kind of schedule pressure. We handle site grading to precise tolerances, HOA compliance submittals, and all required documentation including CAD-based as-built plans showing valve locations and sleeve routes. Foundation Finish packages for new builds start at $8,000 to $10,000, and full yard designs range from $25,000 to $40,000 and above.What does commercial maintenance include, and what property types does AGT service?
AGT serves HOA communities, office parks, retail centers, and municipal campuses across Boulder, Larimer, and Weld Counties. Commercial maintenance includes weekly mowing, aeration, overseeding, and organic fertilization during the April through November season. We also provide 24/7 snow removal, de-icing, and storm monitoring throughout the winter. Commercial clients receive performance dashboards that track water savings and work tickets, and our crews carry OSHA 10 cards and operate under $5 million in general liability coverage. Our battery-powered equipment fleet makes us a strong fit for noise-sensitive locations like medical campuses and high-density residential communities.
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