Best waterproofing companies in Janesville

★★★★★4.9 (73 reviews)score 89/100

Rote's earns the top composite score in town on the strength of near-perfect ratings and consistently positive sentiment across 73 reviews. The team is known for turning around grading and drainage fixes in days, then finishing with landscaping that looks intentional rather than patched.

• Fast turnaround on drainage fixes
• Grading and drainage expertise
• Professional, detail-oriented crew
• Stands behind completed work

Services: exterior below grade waterproofing, basement waterproofing

★★★★★4.6 (36 reviews)score 79/100

Flood Pros built a strong reputation on speed, often reaching a flooded basement within the hour, paired with a crew that explains each step and cleans up thoroughly. With 36 reviews and consistently positive sentiment, it's a solid choice when water damage needs an immediate response.

• Responsive emergency service, often within an hour
• Professional, communicative crew
• Thorough site cleanup
• Full-scope restoration from demo to finishing

Services: basement waterproofing, exterior below grade waterproofing

★★★★★4.8 (14 reviews)score 77/100

S.R.M. Contracting draws praise for flexible, creative problem-solving on remodels and decks at reasonable rates, with strong communication throughout the job. The review base is smaller at 14, so the track record is solid but still building.

• Flexible with budget and design changes
• Quality workmanship at reasonable pricing
• Creative solutions for tricky spaces
• Mostly clean work sites

Services: basement waterproofing

★★★★★5 (80 reviews)score 90/100

DMR Exteriors posts the highest composite score on this list, backed by a perfect rating across 80 reviews and high confidence in the data. Customers consistently point to clear communication, on-schedule completion, and a crew that comes back to fix minor issues without hesitation, all while handling insurance coordination on storm-damage jobs.

• Knowledgeable staff who explain the work
• Fast response and on-schedule completion
• Strong insurance coordination
• Returns to address minor issues after the job

Services: exterior below grade waterproofing, basement waterproofing

★★★★★4.9 (86 reviews)score 88/100

Wilco Exteriors backs up a near-perfect rating with 86 reviews, giving it one of the most reliable track records on this list. Customers highlight punctual crews, clear upfront communication, and no-pressure guidance from quote through final cleanup.

• Professional, punctual installation crews
• No-pressure, detailed communication
• Quality materials and workmanship
• On-time scheduling

Services: exterior below grade waterproofing, basement waterproofing

★★★★★5 (22 reviews)score 83/100

Every review for Weatherseal is five stars, and the sentiment holds up across attics, basements, crawl spaces, and cathedral ceilings. Customers repeatedly mention the crew doing extra work at no added charge and catching mistakes left by previous installers.

• Responds quickly, even on holidays or in bad weather
• Clear, upfront pricing
• Goes above and beyond without upcharging
• Thorough cleanup after each job

Services: exterior below grade waterproofing, basement waterproofing

★★★★★4.9 (8 reviews)score 79/100

Rock River Roofing keeps customers informed from start to finish and consistently finishes on time and on budget across roofing, siding, and exterior work. The review count is small at 8, so this is a promising track record rather than a long-proven one.

• Kept homeowners informed throughout the job
• Professional, quality craftsmanship

Services: basement waterproofing

★★★★★4.6 (21 reviews)score 77/100

Advanced Construction stands out for honoring warranty work on older jobs without pushback and for egress windows that have held up through regional flooding. Most of its 21 reviews describe fast, clean turnarounds and clear communication with insurance adjusters.

• Honors warranty work without argument
• Egress windows proven in flood conditions
• Clean worksites
• Fast turnaround on tight timelines

Services: exterior below grade waterproofing, basement waterproofing

★★★★☆4.4 (34 reviews)score 76/100

Center Construction handles concrete and shed projects with a focus on drainage design, and reviewers note quick quotes and level pours across 34 reviews. The team is also called out for correcting settling patios that other contractors left alone.

• Quick response on quotes
• Careful drainage design on concrete work
• Clean job sites
• Fair pricing

Services: basement waterproofing

★★★★★4.5 (56 reviews)score 75/100

SERVPRO of Rock County shows up for major losses with a prompt, respectful crew that follows up for days after the initial cleanup, backed by 56 reviews. It's a name suited to bigger disaster jobs where insurance coordination and rapid response matter most.

• Prompt, professional emergency response
• Careful handling of belongings
• Strong follow-up communication
• Experienced with large-scale losses

Services: basement waterproofing, exterior below grade waterproofing

★★★★★5 (2 reviews)score 70/100

H&H20 Response has only two reviews so far, but both describe a team that arrived ahead of schedule and prioritized helping during area-wide flooding. It's an emerging option worth watching as its track record grows.

• Same-day or rapid response
• Knowledgeable, informative assessment

Services: basement waterproofing

★★★★☆4.3 (12 reviews)score 61/100

White Oak Construction gets credit for a friendly crew and quality craftsmanship across most of its 12 reviews, with quick on-site problem-solving when issues come up. Sentiment is mixed rather than uniformly strong, so it's worth weighing against the more consistently reviewed options above.

• Responsive, friendly staff
• Quality craftsmanship
• Timely project completion
• Proactive problem-solving on site

Services: basement waterproofing

score 28/100

Janesville Basement Waterproofing Experts is a Janesville-based specialist offering sump pump installation, French drains, crack repair, and crawl space encapsulation, and states it is a certified basement waterproofing contractor. There isn't yet a review history to weigh against that, so it rounds out this list as an option to look into directly.

• Sump pump installation
• French drain systems
• Foundation crack repair
• Crawl space encapsulation

Services: basement waterproofing, exterior below grade waterproofing