New Home Construction in Marshall, WI
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A Custom Home Planned Around Your Land, Your Life, and Our Winters
Wisconsin's Uniform Dwelling Code requires every footing to sit at least 48 inches below grade, and current energy rules call for R-49 ceilings and R-20 walls, so a house that lasts here starts with decisions you never see. Greenline Construction, Inc. provides new home construction in Marshall, WI and across Sun Prairie, Columbus, Watertown, Lake Mills, and Deerfield, managing site clearing, frost-depth foundations, framing, roofing, air sealing, mechanical rough-ins, and finishes on rural parcels, infill lots, and new subdivisions.
Our approach is built on 30+ years of residential construction in Dane and Jefferson counties, with every phase documented before work begins so you know the scope, materials, and schedule well in advance. We sequence every trade carefully so inspections land on time and nothing waits on a missed handoff, and we back the finished home with a 1-year labor warranty. Share your lot and floor plan ideas through our contact page to schedule a planning consultation.
Custom Homes We Build From the Ground Up
Site Preparation and Grading
Every build begins with clearing vegetation, grading the lot so water drains away from the future foundation, excavating to depth, and setting up temporary utilities and delivery access. Getting drainage right at this stage prevents wet basements and settling problems years later.
Frost-Depth Foundations
Footings are placed below the frost line and never on frozen material, with depth and width matched to your soil. Poured walls or block foundations are waterproofed and drained so the lower level stays dry through spring thaw and heavy summer rain.
Framing and Roofing
Walls, floors, and roof structure are framed to carry Wisconsin snow loads, with sheathing, house wrap, and roofing installed promptly to close the building envelope. Window and door openings are flashed before exterior finishes go on so water has no path inside.
Insulation and Air Sealing
Wall cavities, attic spaces, and rim joists are insulated and sealed to meet or exceed state energy code, targeting the places where heat escapes fastest during January. Proper air sealing also controls the condensation that leads to ice dams and hidden moisture damage.
Mechanical Coordination
Once the shell is enclosed, electrical, plumbing, and HVAC trades move in on a schedule we manage directly. Rough-ins are inspected before drywall closes the walls, and transitions between trades are timed so no one waits and nothing gets reworked.
Interior Finishes
Flooring, cabinetry, trim, doors, paint, and fixtures are installed according to selections made earlier in planning, before drywall went up. You walk into a move-in-ready home with no temporary fixes, no unfinished corners, and no confusion about what was included.

See Our Work
Explore our new home construction projects and see how Greenline Construction Inc. delivers quality craftsmanship, thoughtful design, and lasting results.
FAQ's
What does site preparation include before framing begins?
Site prep covers clearing vegetation, grading the lot for proper drainage, excavating for the foundation, and establishing temporary utilities and access routes for deliveries and crews. On rural parcels it may also include driveway cuts and well or septic coordination before excavation starts.
How long does it take to build a custom home in south-central Wisconsin?
Most custom homes take several months from excavation to move-in, depending on size, finish complexity, weather, and specialty material lead times. Late fall and early spring weather can slow concrete curing and roofing, so the start date shapes the finish date.
Can a house be built through a Wisconsin winter?
Yes, with the right sequencing. Foundations poured before hard freeze allow framing and roofing to proceed through cold months, and interior trades work comfortably once the shell is enclosed and heated. Exterior finishes and landscaping typically wait for spring.
When should I finalize cabinet, flooring, and fixture selections?
Interior finish selections need to be locked in before drywall is completed so materials can be ordered and delivered without stalling the schedule. Cabinets and specialty windows carry the longest lead times, so those decisions come first in the planning calendar.
What happens if I want to change the layout during construction?
Layout changes are simplest before framing is complete. After that point, moving a wall or window usually means reworking electrical, plumbing, and structural elements, which adds time and cost. We flag decision deadlines early so changes happen while they are still inexpensive.
How do you handle insulation for Wisconsin winters?
Insulation is installed to meet or exceed state energy code, with attention to attics, wall cavities, and rim joists where heat loss is greatest. Greenline Construction Inc. pairs it with air sealing on every new home in Marshall, WI to prevent ice dams.
What is the difference between a custom builder and a production builder?
Production builders repeat a fixed set of plans on lots they control, with limited changes allowed. Custom builders design around your land, household, and preferences, from foundation type to trim profile. Greenline Construction Inc. builds custom homes across Marshall, WI and nearby communities.
How do soil conditions affect the foundation design?
Clay, sand, and fill soils bear weight differently, and a high water table changes how a basement must be drained. We evaluate the lot before excavation so footing width, foundation type, and drainage match what is actually in the ground.
Why Choose Us for New Home Construction
One Team From Lot to Keys
You deal with the same people from the first site walk through final walkthrough, rather than handing your project between a designer, a builder, and a string of subcontractors. Decisions get made faster and nothing is lost between meetings or emails.
Built for the Climate You Live In
Homes here face 12°F January lows, freeze-thaw cycles, and humid summers. Material choices, insulation levels, window placement, and drainage details are all selected with those conditions in mind, which lowers heating bills and maintenance for the life of the house.
No Surprises in the Budget
Costs are projected during planning around finish level, size, and site conditions, and any change is written up with its price before you approve it. You always know where the money is going and what a decision will add or save.
Layout Decisions Made at the Right Time
Floor plan changes are easy on paper and expensive after framing. We walk you through layout, window placement, and finish selections early, with clear deadlines for each decision, so materials arrive on schedule and rework never eats into your timeline.
Inspections That Pass the First Time
Because rough-ins, framing, and insulation are checked against code before the inspector arrives, projects rarely stall waiting on corrections. Passing inspections on the first visit keeps trades moving and protects your move-in date from slipping into another season.
A Warranty That Follows You Home
Our 1-year labor warranty covers the work after you move in, so a sticking door or a settling trim joint gets handled rather than argued over. It reflects how we build, with the expectation that we will see the house again.
The House You Planned, Built the Way It Was Drawn
The best compliment a new home can receive is that it performs exactly as expected through its first Wisconsin winter, with no drafts, no wet corners, and no callbacks. Greenline Construction, Inc. has been building that kind of home around Marshall, WI for 30+ years, on farm parcels, village lots, and new subdivisions alike, with a documented process that keeps you informed at every phase. If you own land or are still deciding where to build, we are glad to walk the site with you and talk through what the ground and the budget will support. Reach out through our contact page to request a consultation and get your project on the calendar.
Why Choose Us
Quality Craftsmanship
I take pride in delivering high-quality workmanship on every construction and remodeling project. I focus on durable materials, careful execution, and attention to detail from start to finish.
Personalized Service
I work closely with each homeowner to understand their vision, needs, and goals. I provide personalized solutions that make every project feel tailored to the customer’s home and lifestyle.
Versatile Services
I offer a wide range of construction and remodeling services, from new home construction and additions to kitchens, bathrooms, basements, decks, and custom projects. This allows me to handle projects of all sizes and scopes.
Reliable Project Management
I prioritize clear communication, dependable service, and organized project management throughout every job. I strive to keep projects moving efficiently while maintaining high standards for quality and customer satisfaction.
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Areas We Serve
Marshall, WI
Columbus, WI
Sun Prairie, WI
Lake Mills, WI
Johnson Creek, WI
Watertown, WI
Deerfield, WI
Waunakee, WI
Stoughton, WI
Beaver Dam, WI
DeForest, WI
Cambridge, WI
Fort Atkinson, WI
Whitewater, WI
McFarland, WI
Monona, WI
Cottage Grove, WI
Milton, WI
