Home Additions & Structural Services
Basement & Attic Conversions
JD Contracting LLC converts unfinished basements and attics into beautiful living spaces for Metro Detroit homeowners. Our licensed team installs egress windows, insulation, drywall, electrical systems, and flooring in full compliance with Michigan building codes.
Basement & Attic Conversions
What's Included in Our Basement & Attic Conversions Service
Finishing a basement or converting an attic is a moisture problem and a structural problem before it's a finish problem. In a Michigan basement, framing walls and hanging drywall without addressing moisture first produces mold, damaged finishes, and a remediation job within a few years. Every basement project we take on starts with a moisture evaluation, and we put drainage, waterproofing, and vapor control in place before any framing begins.
For attic conversions, the first questions are structural: can the existing floor joists carry living-space loads, is there adequate headroom at minimum code height, and does the space have a code-compliant egress path? The answers often require reinforcing joists, adding a dormer to meet height requirements, or cutting an egress window — all of which are permitted and inspected work.
Every finished basement and attic conversion we build in Oakland County goes through the permit and inspection process. Egress windows in bedrooms, smoke and CO detectors, AFCI-protected circuits, and insulation meeting current Michigan energy code R-values are code requirements. We pull all required permits, schedule every inspection at the correct phase, and deliver a space that passes final inspection with documentation on file.
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Basement & Attic Conversions: What We Specialize In
Finished Basements
We install interior drainage, sump pumps, and vapor barriers before framing, insulating, and finishing your basement into livable space.
Learn More →Attic Buildouts
Our team evaluates joist capacity, adds dormers for headroom and light, and finishes attic spaces with insulation, drywall, and flooring.
Learn More →Egress Windows
We cut foundation walls, install code-sized egress windows with proper wells and drainage, so your basement bedroom passes inspection.
Learn More →Insulation Upgrades
Our crews install spray foam or rigid board insulation in basement walls and attic cavities to meet current R-value requirements and reduce energy costs.
Learn More →Electrical Systems
We run dedicated circuits, install recessed LED lighting, wire outlets and switches, and add required smoke and CO detectors throughout the space.
Learn More →Theaters & Wet Bars
We build specialized spaces with sound insulation, plumbing for wet bars, rubber flooring for gyms, and wiring for audio-visual equipment.
Learn More →HVAC Extension
Our team extends your existing furnace and AC system with new trunk lines and registers sized to heat and cool the converted space evenly.
Learn More →Last updated: May 2, 2026
Our Work
Basement & Attic Conversions Projects

FAQ
Basement & Attic Conversions FAQs: Oakland County, Michigan
A typical basement conversion in Metro Detroit takes 6 to 10 weeks. Timeline depends on scope, permitting, and whether plumbing or egress windows are involved. Actual timelines may vary based on project complexity, permit timelines, material availability, and site conditions.
Yes, provided the attic has adequate ceiling height and structural capacity. We handle reinforcement, insulation, dormers, electrical, and all interior finishes to meet Michigan code.
Yes. Michigan building code requires egress windows in any basement bedroom or sleeping area. We handle window well excavation, installation, and waterproofing.