GMH offers basement remodeling services for Pewaukee, Brookfield, Hartland, Elm Grove, Waukesha, and Milwaukee-area homes. Your basement shouldn’t be a glorified crawl space covered in piles of laundry and boxes. It should be a cozy getaway and a place to relax on a cold Wisconsin night. The expert basement contractors at GMH will help you transform your basement into the highlight of your home. Whether you’re looking to build the rec room of your dreams or add on a bathroom, we have you covered.
Basement Remodeling Services
Our Southeast Wisconsin basement remodelers are capable of finishing unfinished basements, remodeling already finished basements, and building additions like wet bars or bathrooms. No matter what you’re looking for, our contractors can design and implement it. We can provide your basement with:
Drywall
Electrical
Plumbing
Doors
Entertainment centers
Wet/Dry Bars
Bathrooms
Windows
Cabinetry
Much more
Basement Bathroom Installation
A finished (or unfinished) basement space is perfect for an additional bathroom. Bathroom additions are especially helpful if your basement is used as an entertainment area or a living space. Our basement remodeling contractors are experienced in adding half, ¾, and full bathrooms to basements in Southeast Wisconsin. If you’re interested in adding a bathroom to your basement, contact our team of basement remodelers today.
How much does basement remodeling cost in Wisconsin?
A full basement remodel can cost anywhere from $55,000 to $70,000+ per 1,000 square feet. The cost of a basement remodeling project largely depends on your budget and the finish materials you choose. For the most accurate price estimate for your basement remodeling project, contact GMH Construction.
Cost of Standard Basement Remodeling
- Standard Finishes
- Per 750 Sq. Ft. Build-out
- Add On: 3/4 Bath (45 sq. ft.)
- Add On: Wet Bar/Beverage Center
- Timeline
- 10-12 Weeks
- Add 2-3 Weeks
- Add 1-2 Weeks
- Price
- $55k+
- $23k+
- $18k+
Cost of Premium Basement Remodeling
- Premium Finishes
- Per 1000 Sq. Ft. Build-out
- Add On: 3/4 Bath (45 sq. ft.)
- Add On: Wet Bar/Beverage Center
- Timeline
- 10-12 Weeks
- Add 2-3 Weeks
- Add 2-3 Weeks
- Price
- $70k+
- $30k+
- $30k+
Full Basement Build-Outs
A full basement build-out assumes the layout of one office or workout room and a separate recreation or entertainment room. Material and labor costs include framing, insulation, switches, outlets, can lights, HVAC ventilation, drywall, taping, doors, trim, painting, and carpet. Additional features like detailed trim or Egress windows will add to the cost.
¾ Bathroom Additions
¾ bathroom additions assume a 45-square-foot bathroom including a vanity, toilet, flooring, and shower stall with a full-frame glass door. The final price will be affected by the quality of cabinetry, countertops, fixtures, tile, and drains.
Basement Dry and Wet Bars
A standard-level wet bar comes with a sink, faucet, and an island or peninsula section for bar stools. A premium-level wet bar is a more customized space for gatherings and includes multiple appliances and a high-end finish.
Basement Man Caves
If you need man cave ideas for your basement, look no further! Whether you want to renovate your basement into a family space or a man cave, our contractors will work with you to create the perfect design.
Basement Bedrooms
We have the basement bedroom ideas and layout plans to make guests feel comfortable. Basement guest bedrooms increase your resale value and add functional space to make hosting easier!
Basement Offices
GMH helps clients make their basements more usable. For many, this means converting the extra space into an office. We have the basement office ideas to make your space functional and beautiful.
Basement Playrooms
A basement playroom can be a great addition to a home, providing a designated space for children to play and explore. It can also help keep the rest of the house tidy by containing toys and messes in one area.
Contact us for a free basement remodeling consultation.

Pewaukee, WI 53186
Open Monday – Friday
Office: 262-696-8131