Are You Looking for Construction Contractors in Longmont, CO?

Explore 18 construction businesses in Longmont, CO offering new building projects, renovations and remodeling services. Read customer reviews, check which projects each contractor handles, and contact suitable companies to ask about estimates and availability.
Quality Renovations & Roofing is a full-service home renovation company serving Northern Colorado. Specializing in roofing, window replacement, kitchen and bathroom remodels, and basement finishes, we focus on enhancing home functionality and value. With over 25 years of experience, we combine skilled craftsmanship with personalized service to meet clients' unique needs.
Roofing Window Replacement Kitchen Remodels
Quality work Timely completion Professional team
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RGM Construction
41 Years
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RGM Construction specializes in residential and commercial construction services across Colorado's Front Range. We deliver custom homes, renovations, and tenant finishes with a focus on quality, transparency, and client collaboration. With over 35 years of experience, our team combines technical expertise with personalized service to meet project goals efficiently.
New Construction Custom Homes Townhomes
Outstanding quality finish Professional and courteous Completed on time and budget
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Primeau Enterprises
31 Years
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Primeau Enterprises is a Longmont-based home construction and remodeling company with over 25 years of experience. We specialize in new home construction, basement finishing, and residential renovations while offering construction management and consulting services. Our team delivers quality craftsmanship and personalized solutions for both traditional and contemporary projects across the Front Range area.
New Home Construction Basement Finishes Residential Remodels
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Daystar Enterprises
48 Years
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Daystar Enterprises is a full-service general contracting firm based in Longmont, Colorado, specializing in custom homes, renovations, and commercial developments. With over 45 years of experience, we deliver exceptional craftsmanship and project management expertise. Our client-focused approach emphasizes transparency, budget control, and minimizing construction disruptions.
Custom Homes Renovations Additions
Genuine team Excellent quality On time
Fischer Construction specializes in water and wastewater treatment facility construction for industrial and municipal clients. With 130+ years of experience, we deliver complex projects using design-build, design-bid-build, and CMAR methodologies while maintaining exceptional safety standards. Our fifth-generation family-owned business combines proven processes with collaborative relationships to ensure quality outcomes.
Water Treatment Plant Construction Design-Build Services Bridge Construction
Completed project per design elements Pro-active during construction sequencing Impeccable communication with stakeholders
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3model Construction
12 Years
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3model Construction specializes in residential and commercial remodeling and new construction projects across Colorado. We combine design expertise with hands-on craftsmanship to create functional, beautiful spaces tailored to clients' needs. Our services include kitchen and bathroom remodeling, home additions, decks, garages, and commercial construction, all executed with a focus on durability and aesthetic appeal.
Kitchen Remodeling Bathroom Remodeling Home Additions
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Zak Dirt
50 Years
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Zak Dirt specializes in heavy/highway construction projects including dams, bridges, utilities, and environmental infrastructure. Since 1976, weve delivered quality-driven solutions for public and private clients across Colorado. Our family-owned business combines decades of expertise with innovative technologies to ensure safety, efficiency, and environmental responsibility.
Dams & Reservoirs Excavation and Grading Bridges and Structures
Golden Triangle Construction delivers comprehensive commercial construction services across Colorado, specializing in education, healthcare, industrial, and municipal projects. With 45 years of experience, we combine technical expertise with personalized service, ensuring projects meet budget and schedule goals. Our commitment to sustainability and cutting-edge technology ensures efficient, future-ready solutions for every client.
Preconstruction Services Project Management Safety Management
Exceptional quality Personalized service Pragmatic solutions
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L4 Construction
16 Years
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L4 Construction provides comprehensive commercial, environmental, and marine construction services across Colorado and Michigan. Specializing in bioengineered solutions for watershed restoration and shoreline erosion control, the company also executes large-scale commercial projects including food processing facilities, multi-unit residential complexes, and industrial infrastructure. With a legacy of safety, financial stability, and technical expertise in steep terrain and wetland environments, L4 delivers turn-key solutions from concept to completion.
Commercial Construction Environmental Restoration Marine Erosion Control
Rhinotrax Construction delivers commercial construction services across warehouse, healthcare, transit, and education sectors. Founded in 2004, we combine decades of industry experience with a commitment to transparency and client collaboration. Our certified woman-owned firm specializes in minimizing operational disruption during projects while maintaining strict quality standards.
Warehouse Construction Higher Education Projects Interior Finishes
Depend upon to deliver Exceeds expectations Professional manner
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Sun Construction
48 Years
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Sun Construction delivers specialized construction solutions for technically challenging projects across life sciences, government, high-tech, and manufacturing sectors. Based in Longmont, Colorado, the company combines 40+ years of experience with advanced technologies like BIM modeling and laser scanning to execute complex builds. Their client-centric approach ensures precision execution while maintaining operational continuity in occupied facilities.
Preconstruction & Estimating Construction Management Design-Build Services
Excellent job World-class lab Completed ahead of schedule
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Mishler Construction
23 Years
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Mishler Construction specializes in full-service construction solutions for commercial, industrial, and religious institutions across Colorado. With over 20 years of experience, we provide design/build services, project management, and pre-construction planning to turn client visions into functional, high-quality facilities. Our single-source approach ensures seamless communication and accountability throughout every project phase.
Design/Build Services Property Acquisition Project Entitlement
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Hall Irwin
50+ Years
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Hall Irwin Corporation is a full-service construction management firm specializing in commercial, vertical, and land development projects. With over 60 years of experience, we deliver innovative solutions for complex construction challenges, including slurry walls and cutoff walls. Our client-centric approach combines technical expertise with transparent communication to ensure projects meet budgetary and quality standards.
Commercial Construction Vertical Construction Land Development
Completed within budget Timely communication Technical expertise
Construction Concepts is a full-service commercial construction firm specializing in design/build and general contracting solutions. With over 25 years of experience, we deliver tailored construction services for retail spaces, office buildings, educational facilities, fire stations, churches, and recreational projects. Our client-centric approach combines Christian values with technical expertise to transform concepts into high-quality, cost-effective realities.
Design/Build General Contracting Retail Construction
Timberline Builders is a licensed residential contractor serving Boulder County for over 30 years. We specialize in home additions, kitchen and bathroom remodels, deck construction, and basement finishes. Our experienced team delivers high-quality craftsmanship and personalized service for every residential project.
Home Additions Kitchen Remodels Bathroom Remodels
Professionalism Quality work Personalized attention
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Juxtapose Flooring & Interiors
29 Years
Emergency
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Juxtapose Flooring & Interiors specializes in kitchen remodeling, flooring installation, and interior design solutions. Since 1997, we have delivered high-quality, timely projects across Colorado, combining expert crews with transparent pricing. Our services enhance both residential and commercial spaces through durable materials, skilled craftsmanship, and a commitment to client satisfaction.
Kitchen Remodeling Hardwood Floor Refinishing Residential Flooring Installation
Magazine-worthy results Spotless every day Saved our floors
Scarbrough Contracting provides comprehensive residential construction services in Longmont, CO, specializing in remodeling, electrical work, and general contracting. With over 25 years of experience, we combine skilled craftsmanship with personalized service to bring clients' visions to life. Our focus on quality, licensed professionals, and client-centric approach ensures reliable, code-compliant results for every project.
General Contractor Finish Work Electrical Services
First-class general contractor Wonderful work Completed professionally
Niwot (5.7 mi) Erie (8.5 mi) Berthoud (9.8 mi) Frederick (9.9 mi) Lafayette (12.0 mi) Louisville (13.2 mi) Boulder (13.8 mi) Loveland (16.0 mi) Broomfield (17.0 mi) Brighton (19.5 mi)