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Why Boulder Homeowners Trust Cosman Construction for Home Additions & Remodeling
At Cosman Construction, we’ve built our reputation since 2013 as Boulder’s trusted deck and general contractor. We’re expanding that same commitment to quality and craftsmanship into home additions and residential remodeling projects, from full home remodeling to custom room additions and thoughtfully planned expansions. As experienced remodeling contractors, we bring proven construction expertise to every home renovation project while offering the same attention to detail our clients expect. For more information about our other services including Decking, Railing, & Additional Options reach out to learn more from a trusted contractor near me.
Schedule a free consultation with Cosman Construction to discuss your home additions or remodeling project with experienced remodeling contractors near you.
Why Choose Us for your Addition or Home Remodeling Project?
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Deep Local Experience - We understand Boulder County permitting, building standards, and architectural styles that fit the Front Range.
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Licensed & Highly Rated - Active General Contractor License (LIC-01003395) with a strong BuildZoom score placing us among Colorado’s top remodeling contractors.
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Owner-Led Quality - Alex Cosman personally oversees every stage of your home additions and residential remodeling project to ensure nothing is overlooked.
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Proven Track Record - Permits for residential home additions and home renovation projects in Boulder support our results.
Whole-Home & Room Remodels
Whether you’re reimagining a single space or planning a full transformation, we deliver expert craftsmanship and thoughtful design. From modern layouts to improved efficiency and flow, our home remodeling approach helps create spaces that match your lifestyle and add long-term value.
We take the time to protect the rest of your home near the construction area to minimize clean up.
Additions & Expansions
Need more space? We specialize in seamless home additions, including new bedrooms and expanded living areas. Our team handles zoning and permits while ensuring every room addition blends naturally with your existing home and meets all code requirements.
Design-Build Delivery
Our design-build process keeps home additions and residential remodeling projects efficient and stress-free. From concept through completion, our remodeling contractors near me manage everything under one roof, with Alex Cosman personally involved to deliver a smooth, well-coordinated build.
Your Local Boulder Home Remodel & Addition Experts
Step 1
Contact Us
Submit a contact form, call, or text us.
Step 4
Estimates & Permits
You get a clear estimate, and we handle all permitting.
Step 2
Consultation
We visit your home to discuss your goals and evaluate the space.
Step 5
Construction
Our team builds efficiently with top-tier craftsmanship.
Step 3
Concept & Design
We create a custom design that fits your vision and local codes.
Step 6
Final Inspection
We ensure everything meets standards and your satisfaction.
You've Got Questions, We've Got Answers
Q: What Permits are needed for remodels & additions in Boulder?
A: We handle all Boulder County permitting.
Q: How long does a kitchen remodel or addition take?
A: Remodels take 8-12 weeks, additions take 12-24 weeks.
Q: Are your licensed & insured in Colorado?
A: Yes - General Contractor license LIC-01003395
Ready to Expand Your Home? Request A Quote
Contact Cosman Construction to discuss your addition or remodel vision. We deliver a smooth, high-quality experience from design through completion with the integrity Boulder homeowners deserve.