10 basement waterproofing contractors in Kansas City
Google data observed October 24, 2026 and October 28, 2026 · How we rank
Compare companies with checked residential basement water-control services in the Kansas City area. Ask how each proposal addresses the reported water entry and what work is excluded.
Compare 10 listings ↓The shortlist
Compare 10 listings
Google rating and review count
observed October 24, 2026 and October 28, 2026
Swipe across the table to compare ratings, review counts and scores.
| Rank | Company / location | Services to compare | Reviews | Local Score | |
|---|---|---|---|---|---|
| 1 | KC Pier — Overland ParkOverland Park, KS | Basement drainage and sump options | 5.0 ★ | 220 | 4.97 |
| 2 | DLN Solutions | Foundation RepairGladstone, MO | Interior and exterior basement water control | 5.0 ★ | 92 | 4.93 |
| 3 | Thrasher Foundation Repair — LenexaLenexa, KS | Basement drainage and sump systems | 4.9 ★ | 1,805 | 4.90 |
| 4 | KC Waterproofing and Foundation Repair — North Kansas CityNorth Kansas City, MO | Basement drainage with interior and exterior options | 4.9 ★ | 922 | 4.89 |
| 5 | PolyMagicBelton, MO | Leaking basement crack specialist | 4.9 ★ | 261 | 4.88 |
| 6 | Helitech Waterproofing & Foundation RepairKansas City, MO | Basement waterproofing with structural repair options | 4.9 ★ | 226 | 4.88 |
| 7 | Cowboy Certified Plumbing & Water CleanupLee’s Summit, MO | Basement sump-pump specialist | 4.9 ★ | 144 | 4.86 |
| 8 | Falcon FoundationsKansas City, MO | Interior and exterior basement water control | 4.9 ★ | 103 | 4.85 |
| 9 | KC Waterproofing and Foundation Repair — GrandviewGrandview, MO | Basement water control from the Grandview listing | 4.9 ★ | 89 | 4.84 |
| 10 | Heartland Foundation RepairKansas City, KS | Basement drains and sump systems | 4.9 ★ | 71 | 4.83 |
Different proposals can address different water paths and project scopes. Compare the written assessment, included work and exclusions before using scores to narrow the list. Source dates and ranking limits.
Find a company that fits the work
- 01
Overland Park, KS
KC Pier — Overland Park
Basement drainage and sump options
The company describes basement waterproofing and sump solutions for Overland Park homes. Its other Google listings are scored separately.
Ask when comparing quotes: Where is water entering, and which drainage and sump components address that route?
Overland Park branch only; company service evidence is a retained October 28 primary capture.
Company service information checked 2026-10-28. Google observation: 2026-10-24.
- 02
Gladstone, MO
DLN Solutions | Foundation Repair
Interior and exterior basement water control
DLN describes interior and exterior waterproofing, drainage and sump work for homes in the Kansas City area.
Ask when comparing quotes: Why is an interior or exterior approach appropriate for this basement?
The matching Montgall Circle street and ZIP are labeled Kansas City on the website and Gladstone in the listing. Source capture retained from October 28.
Company service information checked 2026-10-28. Google observation: 2026-10-24.
- 03
Lenexa, KS
Thrasher Foundation Repair — Lenexa
Basement drainage and sump systems
Thrasher describes basement waterproofing through drainage and sump systems. This entry uses the separate Lenexa Google listing.
Ask when comparing quotes: How will the drain and sump design handle the observed water path and discharge location?
Lenexa listing only; other Thrasher offices and their reviews are separate.
Company service information checked 2026-10-29. Google observation: 2026-10-24.
- 04
North Kansas City, MO
KC Waterproofing and Foundation Repair — North Kansas City
Basement drainage with interior and exterior options
The company describes basement drainage, sump and exterior water-control options for Kansas City homes.
Ask when comparing quotes: Which interior or exterior measures address the diagnosed source of water?
North Kansas City listing only. The separately listed Grandview branch shares a brand, but review counts are not combined.
Company service information checked 2026-10-29. Google observation: 2026-10-28.
- 05
Belton, MO
PolyMagic
Leaking basement crack specialist
PolyMagic describes injection treatments for water leaking through below-grade foundation walls.
Ask when comparing quotes: Is the leak confined to a repairable crack, or is wider drainage work needed?
Crack-injection specialist; this evidence does not establish full piering, wall-stabilization or whole-basement drainage services.
Company service information checked 2026-10-29. Google observation: 2026-10-24.
- 06
Kansas City, MO
Helitech Waterproofing & Foundation Repair
Basement waterproofing with structural repair options
Helitech describes basement drainage, sump pumps, vapor barriers and crack sealing, with foundation repairs available when needed.
Ask when comparing quotes: Which work stops the water entry, and which work addresses any separate structural movement?
The matched Kansas City office is on East U.S. Highway 40; a site assessment must determine the appropriate system.
Company service information checked 2026-10-29. Google observation: 2026-10-24.
- 07
Lee’s Summit, MO
Cowboy Certified Plumbing & Water Cleanup
Basement sump-pump specialist
The company explicitly installs, repairs and replaces basement sump systems, including backup options for groundwater control.
Ask when comparing quotes: How will pump capacity, backup power and discharge routing fit this basement?
Sump-pump specialist; this evidence does not establish exterior membranes or complete perimeter waterproofing. The retained listing is linked by matching company contact evidence; its street is not independently confirmed.
Company service information checked 2026-10-29. Google observation: 2026-10-24.
- 08
Kansas City, MO
Falcon Foundations
Interior and exterior basement water control
Falcon describes residential membranes, drainage, sump installation and other measures for basement water intrusion.
Ask when comparing quotes: Which water pathway requires excavation, drainage or sump work, and why?
This entry matches the Hickman Mills Drive listing; service suitability still depends on the property assessment.
Company service information checked 2026-10-29. Google observation: 2026-10-24.
- 09
Grandview, MO
KC Waterproofing and Foundation Repair — Grandview
Basement water control from the Grandview listing
KC Waterproofing describes interior and exterior basement water-control options. This entry keeps Grandview’s review record separate.
Ask when comparing quotes: Which office will manage the work, and how will drainage and discharge be handled?
Grandview listing only. This is the same brand as the North Kansas City entry, with a separate Google record.
Company service information checked 2026-10-29. Google observation: 2026-10-24.
- 10
Kansas City, KS
Heartland Foundation Repair
Basement drains and sump systems
Heartland describes interior basement drainage and sump systems alongside foundation repairs for Kansas City homes.
Ask when comparing quotes: What drain route, sump location and discharge plan address the observed water entry?
Strong Avenue listing only; primary service and exact-listing evidence are retained from October 28.
Company service information checked 2026-10-28. Google observation: 2026-10-28.
Compare the water-control scope
Ask each company to describe the problem it proposes to address and the limits of its proposed work.
- Assessment: Ask which conditions were observed and what further investigation is proposed.
- System and scope: Request a written list of included work, components and areas of the basement.
- Related work: Clarify whether restoration, finish repairs and any exterior work are included.
- Maintenance and terms: Ask about maintenance, warranty conditions, follow-up and payment terms.
Scope and branch limits
This category requires advertised residential basement water-intrusion mitigation. Cleanup or restoration alone, roof waterproofing, and a generic waterproofing listing label do not establish basement-waterproofing service.
Listing locations identify the observed records. They do not establish a staffed office, a company's full service territory or availability at your address. Confirm those details directly.
How we rank and what we checked
This edition accounts for 122 held listing IDs from an earlier Maps collection covering several markets. It is a bounded Kansas City review of those records, not a fresh comprehensive metro search. Nine exact listing IDs have October 28 observations; the remaining 113 retain October 24 observations. All identities remain separate. Selected listings, the next eligible cutoff where present and unresolved records above the selected cutoff receive focused service and identity review. Accounting for every record does not mean every lower pending case has complete source evidence. 13 currently qualify, and the 10 highest-scoring eligible listings are shown. 13 unresolved candidates have higher potential scores than the last selected listing and could change this order. Missing evidence is not a conclusion that a company lacks the service. An additional eligible listing was checked immediately below the selected cutoff.
This category requires advertised residential basement water-intrusion mitigation. Cleanup or restoration alone, roof waterproofing, and a generic waterproofing listing label do not establish basement-waterproofing service. Eligibility also requires a matched listing, a working company website, a rating of at least 4.0 and at least 10 reviews. Unresolved service or branch evidence remains pending. No listing reviews are merged.
Google observation dates are shown on each entry and remain tied to the exact listing ID. Company descriptions are advertised service claims checked on the entry's separate service date; they do not certify licensing, insurance, workmanship or availability. Website review widgets do not replace the dated Google observations. Review recency was not measured.
Local Score = (15 × 4.5 + reviews × rating) ÷ (15 + reviews). The prior is an editorial choice, not a measured local average. Full-precision results determine order, with review count, case-insensitive company name and place ID breaking ties. Displayed scores are rounded to two decimals. Small score differences do not establish a workmanship difference.
Credentials, sponsorship and business relationships add zero points. Business relationships neither qualify nor disqualify a company under the service and evidence rules. Publication methodology · Request a correction.