Enjoy the Midwest's beautiful seasons with an outdoor living space tailored to your lifestyle. We design and construct custom cedar decks, maintenance-free composite decks, screened porches, and fully insulated four-season porch additions.
Transform your home's central gathering spots. From full kitchen redesigns with modern cabinetry and durable flooring to spa-inspired bathroom upgrades with custom tile showers and modern vanity fixtures.
Need more room for your growing family or hobbies? We handle full additions, attached/detached garages, master bedroom suites, second-story bump-outs, and heavy timber framing with precision engineering.
Lower your energy bills and shield your home from severe Midwest weather with premium vinyl siding, steel siding, double/triple-pane replacement windows, and certified roof installations.
Turn unfinished lower levels into your family's favorite room. We provide drywall, framing, electrical integration, custom millwork, window casing, and flawless luxury vinyl plank (LVP) and hardwood flooring installations.
We keep you informed and involved every step of the way.
Charles visits your property to evaluate your goals, inspect structure, take measurements, and answer questions.
You receive an honest, transparent estimate outlining material options, labor, and expected timeline with zero hidden fees.
We coordinate municipal building permits and procure premium, climate-tested cedar, composite, or framing materials.
Charles and the team manage the build hands-on with 45+ years of carpentry knowledge, daily job-site cleanup, and steady communication.
We review every finished detail together to ensure complete satisfaction. No project is done until you love the result.
Have questions about building permits, timelines, or materials in Blair, WI and the Coulee Region? Here are answers to our most common client inquiries.
Most custom residential decks take approximately 1 to 2 weeks of active construction, while 4-season insulated porches typically take 3 to 5 weeks depending on foundation footings, electrical, HVAC integration, and custom interior trim. We establish firm start and completion dates before breaking ground.
Yes, most structural additions, detached garages, decks above 30 inches, and major interior remodeling require municipal or county permits. C-n-J Construction coordinates with local building departments across Blair, Trempealeau County, and surrounding Coulee Region municipalities to ensure all work fully complies with the Wisconsin Uniform Dwelling Code (UDC).
Natural Western Red Cedar provides classic rustic beauty, natural insect resistance, and excellent cold-weather resilience, requiring periodic staining or sealing every 2–3 years. High-performance composite decking is low-maintenance, resists fading, splintering, and warping, and withstands harsh Wisconsin snow and freeze-thaw cycles without sealing. We construct both and help you weigh aesthetics, maintenance, and budget.
Yes! We work all 12 months. During the winter, we specialize in interior remodeling, kitchen and bathroom renovations, basement finishing, drywall, custom trim carpentry, and emergency rooftop snow and ice dam removal throughout Blair and the Coulee Region.
Yes. When you hire C-n-J Construction LLC, founder Charles Johnston personally oversees your project on-site, bringing over 45 years of hands-on master carpentry experience. You communicate directly with Charles from initial consultation to final walkthrough—no middlemen or outsourced sales reps.
