Home Addition Contractor in West Michigan
Room additions, second stories, in-law suites — one builder from foundation to finish.
Meet Alex — the guy who answers when you call.
Call or text Alex directly — your quote comes from the owner, the same person who runs your job.
Get a Free Addition Estimate
What we build
- Room additions, bump-outs, and full second-story additions
- In-law and primary-suite additions
- One builder runs it all — foundation, framing, roofing, electrical, plumbing, HVAC, finish work. One contract, one point of contact, no finger-pointing.
- Licensed and insured Michigan building contractor
- 18-month workmanship warranty on every addition
- Serving Grand Rapids, Holland, Grand Haven, Muskegon & all of West Michigan
What does an addition actually cost?
A real addition is a serious project: most of ours land between $150,000 and $250,000 depending on size and finishes. If someone quotes you a fraction of that, look hard at what's missing.
Our quote itemizes everything — you'll know exactly where every dollar goes.
If you're not happy with the work, we make it right. Period.
On top of the 18-month workmanship warranty — on a project this size, that matters.
Our work
What neighbors say
4.7 stars from 57 Google reviews
“OCD was great to work with while they demo’d our old back deck and built a new composite material deck and an extension on our old barn. They both turned out beautiful! … They went above and beyond expectations.”
— John Huelsen
“I called looking for a quote, and Alex was there within an hour. He really values his work and walked me through the whole process. I highly recommend giving him a call!”
— Andrew Wright
“Alex from OCD is very knowledgeable of his craft. Very prompt and professional. Would recommend!”
— Andrew Young
Why OCD Building & Remodeling
- One builder, start to finish. An addition touches every trade there is. You get one contract and one responsible party — Alex — not a general contractor who disappears behind his subs.
- The owner quotes it, the owner runs it. No estimator handoff, nothing lost in translation between the person who priced it and the person building it.
- Detail-obsessed. The company is called OCD for a reason. Additions live or die on how the new construction meets the old — that seam is where we're pickiest.
- Straight answers. Real price ranges up front, an itemized quote, no pressure.
Thinking about more space instead of a new house?
Call or text — or use the form and Alex will text you back.