240+
Projects completed
15yr
In business
14wk
Avg. ADU timeline
4.9★
Client rating
Four ways we help you build
Whether you're remodeling a kitchen, adding an ADU, building from scratch, or going DIY — we have a service tailored to your project.
Remodels
Kitchen, bath, and whole-home transformations that breathe new life into your space.
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ADUs
Detached and attached accessory dwelling units for rental income or multi-generational living.
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New Builds
Ground-up custom homes built to your exact specifications, on time and on budget.
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DIY Guidance
Expert consulting and coaching for homeowners taking on their own projects with confidence.
Learn moreYour project, in your pocket
Every Cornerstone project includes access to our proprietary client portal. Track your budget, watch progress photos roll in, approve finishes, and message your team — all in real time.
Budget Tracker
Real-time running totals, line items, and change orders.
Photo Gallery
Daily progress photos, plans, and contracts in one place.
Selections & Approvals
Pick finishes, materials, and approve with one click.
Direct Messaging
Chat directly with your builder and project team.
Daily Logs
AI-generated weekly summaries of site progress.
Tasks & Punch List
A shared, visible checklist that never gets lost.
portal.cornerstonebuild.co
Active project
Reynolds Kitchen Remodel
Budget used
$42.1k
of $62k
Open tasks
7
2 punch
Days left
23
of 90
Today's update
Cabinets installed, backsplash tile 80% complete. Electrical rough-in inspection passed.
A clear path from idea to keys
Consultation
We meet on-site, listen to your vision, and scope the project.
Design & Estimate
Detailed plans, fixed-quote pricing, and a realistic timeline.
Build
Permits pulled, crew mobilized, and your portal goes live.
Walkthrough
Punch list, final selections, and handover of your new space.
Trusted by homeowners across Colorado
“The client portal was a game-changer. We could see the budget in real time, approve finishes from our phones, and never wondered what was happening on site.”
Sarah & Tom Reynolds
Whole-home remodel
“Cornerstone built our 720 sq ft ADU in 14 weeks — exactly on schedule. The daily photo logs gave us total peace of mind while we were at work.”
Michael Chen
Backyard ADU
“Building our forever home from scratch felt overwhelming until we saw the timeline and budget tracker. Everything was transparent, no surprises.”
Jessica Powell
Custom new build