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Your Trusted General Contractor in Loveland, CO
G2 Construction is a licensed general contractor based in Loveland, CO, serving Northern Colorado and the Colorado Front Range. Founded with a commitment to transparency, fairness, and personalized service, we specialize in residential and commercial general contracting, custom home building, roofing, window replacement, and accessory dwelling units (ADUs). Our team leverages advanced 3D scanning technology to ensure precision in every project, from initial design to final execution. With decades of combined experience in the construction industry, we prioritize client satisfaction through clear communication, expert craftsmanship, and a dedication to solving complex challenges.

Our partnerships with top-tier suppliers and subcontractors ensure access to premium materials and finishes, while our proprietary project management software allows clients to track progress seamlessly. Recognized for our integrity and reliability, we have built a reputation for delivering high-quality results on time and within budget, earning the trust of homeowners and businesses alike.
Services
Residential General Contracting Commercial General Contracting Custom Home Building Roofing Services Window Replacement Accessory Dwelling Units (ADUs) Roof Repairs Door Replacement Interior Remodeling Exterior Remodeling
Highlights and features
  • We utilize 3D scanning technology for precise measurements and project planning.
  • Our team includes certified professionals with decades of construction industry experience.
  • We offer transparent communication and real-time project tracking via proprietary software.
  • We partner with top-tier suppliers for premium materials and finishes.
  • We provide a 5-year Leak Proof Warranty on roofing services.
Associations and certifications
  • Owens Corning Preferred Contractor
  • Andersen Certified Contractor
  • Pella Windows Partner
What people say
Professional team Transparent process Expert craftsmanship Timely completion Stress-free experience
Services
Residential General Contracting
We deliver tailored residential construction solutions, from full-home remodels to custom builds. Our process ensures seamless project management, expert craftsmanship, and adherence to client preferences. Clients benefit from transparent communication and a stress-free experience, with access to premium materials and finishes.
Roofing Services
Our roofing expertise includes replacements, repairs, and inspections for residential and commercial properties. We use high-quality materials and offer a 5-year Leak Proof Warranty. Advanced diagnostics, including photo documentation, ensure accurate assessments and client confidence in repairs.
Window Replacement
We provide Andersen and Pella-certified window replacements tailored to climate and code requirements. Our team ensures energy efficiency, structural integrity, and aesthetic alignment with client preferences, backed by licensed and insured service guarantees.
Custom Home Building
We design and construct custom homes with personalized layouts and luxury finishes. Our end-to-end service includes site selection, permitting, and project management, ensuring homes meet exact specifications while maintaining timelines and budgets.
Accessory Dwelling Units
We create innovative ADUs to maximize property space and value. Our designs prioritize functionality and compliance with local regulations, offering flexible living solutions for extended families, rentals, or home offices.
People
Derek Griess
Owner
Derek founded G2 Construction with a vision to prioritize client needs and transparency. With a family legacy in construction, he brings decades of industry expertise and a commitment to ethical business practices.
Nick Klostermann
Interior Remodeling Specialist
Nick leads interior remodeling projects with a focus on functional design and client satisfaction. His attention to detail ensures seamless execution of kitchen, bathroom, and living space transformations.
Jeff Carlson
Windows & Doors Expert
Jeff specializes in window and door installations, combining technical precision with customer service excellence. His team ensures energy-efficient solutions that enhance home aesthetics and durability.
Alex Griess
Superintendent
Alex oversees project execution, ensuring adherence to timelines and quality standards. His leadership ensures smooth coordination between crews, subcontractors, and clients throughout the construction process.
Aaron Westhuis
Commercial Project Manager
Aaron manages commercial projects with a focus on minimizing downtime and delivering cost-effective solutions. His expertise ensures efficient renovations and tenant improvements for business clients.
Questions
What areas does G2 Construction serve?
We serve Loveland, Fort Collins, Denver, and surrounding Colorado communities, including residential and commercial properties across the Front Range.
Do you offer financing options for home projects?
Yes, we provide financing options to help clients manage the cost of large-scale renovations or construction projects.
Are your roofing services insured?
Yes, we are fully licensed and insured, offering a 5-year Leak Proof Warranty on all roofing installations and repairs.
How does your 3D scanning technology benefit projects?
Our 3D scanning ensures precise measurements, reduces errors, and allows for remote adjustments, streamlining the planning and execution phases.
Can you handle both residential and commercial projects?
Yes, we specialize in both sectors, offering tailored solutions for homes, offices, and commercial spaces with minimal disruption.
What certifications do your window installers hold?
Our team is certified by Andersen Windows and Pella, ensuring expert installation of energy-efficient, durable window systems.