Room to Grow — Built to Last
Holsclaw Building delivers seamless home and building additions that look like they were always part of the original structure. More space, more function, zero compromise on quality.
Expand Without Compromise
Need more space but love where you live? Holsclaw Building specializes in additions that feel like they were part of the original build. We match rooflines, materials, and finishes so the transition between old and new is invisible — and the quality is consistent throughout.
From a single-room bump-out near Bayfield to a full second-story addition in Ashland, we handle every phase — design consultation, permitting, foundation work, framing, and finishing — with the same craftsmanship and communication we’re known for across Northern Wisconsin.
Addition Services
Whatever space you need — we’ll build it right.
Room Additions
Expand your living space with a new bedroom, family room, home office, or sunroom built to match your existing home.
Garage & Outbuilding Additions
Attached or detached garage additions and outbuildings that add storage, workshop space, and property value.
Second-Story Additions
Build up, not out — second-story additions that maximize your lot while doubling your living space.
Matched Materials & Finishes
We source and match siding, roofing, trim, windows, and interior finishes so the addition is indistinguishable from the original.
Permitting & Planning
Full design consultation, permitting, and planning — we handle the paperwork so you can focus on the vision.
Full Foundation to Finish
Complete build from foundation excavation and concrete work through framing, utilities, drywall, and final trim.
Frequently Asked Questions
Will an addition match my existing home?+
Yes. We match rooflines, siding, windows, trim, and interior finishes — the goal is for the addition to look and feel like it was always part of the house.
How long does an addition take?+
Timelines vary by scope. A single-room addition typically takes 8–16 weeks; a second-story addition may take longer. We'll provide a realistic schedule upfront and keep you updated throughout.
Do you handle the permitting process?+
Yes — we secure all necessary permits from local municipalities in Bayfield, Ashland, and Douglas County, and surrounding areas, so you don't have to navigate the paperwork.
Can you build additions in winter?+
Yes. We work year-round in Northern Wisconsin and plan our construction phasing around the seasons. Foundations and framing can proceed in colder months with proper planning.
Services That Go Hand-in-Hand
General Contractor
Adding onto your home or building? Our GC services keep the project coordinated and on schedule.
Learn MoreNew Construction
Whether you're adding on or starting fresh, our new construction team brings the same quality to every build.
Learn MoreRestoration
Expanding while restoring? We can handle both — restoring the existing structure while adding new space.
Learn MoreReady to Expand Your Space?
Free estimates, seamless craftsmanship, and honest communication — let’s talk about your addition.