Ranked #1 because of its Google rating and availability: 5.0★ from 572 Google reviews, open 24/7.
- 5.0★ from 572 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8950 MD-108 Suite 221, Columbia, MD 21045
180 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Londontowne: Best Buy Waterproofing, CR Score 92/100; 5.0★ from 572 Google reviews; open 24/7.
Best for emergencies (open 24/7): Value Dry Basement Waterproofing, posts 24/7 hours; ranked #2 of 180.
Most-reviewed: JES Foundation Repair, 940 Google reviews at 4.7★, the most of 180 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
180 Londontowne foundation repair companies are ranked here by CR Score, from 8 published factors. 37 are open 24/7, 128 open Saturdays and 69 open Sundays, based on posted hours. The median Google rating is 4.9★ across 180 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Best Buy Waterproofing | 92 | 5.0★ (572) | Columbia, 25 mi away | 24/7 | Overall |
| 2 | Value Dry Basement Waterproofing | 90 | 4.7★ (334) | Odenton, 14 mi away | 24/7 | Emergencies |
| 3 | Thompson & Sons Waterproofing Inc. | 89 | 5.0★ (153) | Baltimore, 23 mi away | 24/7 | — |
| 4 | Value Dry Basement Waterproofing | 89 | 4.9★ (251) | Arlington, 29 mi away | 24/7 | — |
| 5 | Armored Basement Waterproofing | 87 | 5.0★ (128) | Baltimore, 35 mi away | 24/7 | — |
| 6 | JES Foundation Repair | 86 | 4.7★ (940) | Baltimore, 31 mi away | Sat · Sun · Evenings | Most reviews |
| 7 | Tru Integrity LLC | 86 | 5.0★ (147) | Baltimore, 23 mi away | Sat · Sun · Evenings | — |
| 8 | '58 Foundations & Waterproofing | 86 | 4.7★ (367) | Arbutus, 21 mi away | Sat · Sun · Evenings | — |
| 9 | JES Foundation Repair | 86 | 4.7★ (74) | Annapolis, 5 mi away | Sat · Sun · Evenings | — |
| 10 | ELG Basement Waterproofing Baltimore | 85 | 4.9★ (33) | Baltimore, 25 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and availability: 5.0★ from 572 Google reviews, open 24/7.
Based in Odenton, 14 mi away
Ranked #2 because of its Google rating and availability: 4.7★ from 334 Google reviews, open 24/7.
Based in Baltimore, 23 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 153 Google reviews, open 24/7.
Based in Arlington, 29 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 251 Google reviews, open 24/7.
Based in Baltimore, 35 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 128 Google reviews, open 24/7.
Based in Baltimore, 31 mi away
Ranked #6 because of its Google rating and review volume: 4.7★ from 940 Google reviews, the most Google reviews on this list (940).
Based in Baltimore, 23 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 147 Google reviews, listed on Google as “Waterproofing service”.
Based in Arbutus, 21 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 367 Google reviews, listed on Google as “Waterproofing service”.
Based in Annapolis, 5 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 74 Google reviews, listed on Google as “Waterproofing service”.
Based in Baltimore, 25 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 33 Google reviews, open 24/7.
Based in Arbutus, 20 mi away
Ranked #11 because of its Google rating and availability: 4.6★ from 30 Google reviews, open 24/7.
Based in Arnold, 4 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Waterproofing service”.
Based in Pasadena, 13 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 47 Google reviews, listed on Google as “Waterproofing service”.
Based in Arbutus, 21 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 249 Google reviews, listed on Google as “Waterproofing service”.
Based in Timonium, 34 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 133 Google reviews, listed on Google as “Waterproofing service”.
Based in Washington, D.C., 25 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based in Washington, D.C., 25 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 159 Google reviews, listed on Google as “Waterproofing service”.
Based in Baltimore, 26 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 72 Google reviews, listed on Google as “Waterproofing service”.
Based in Edgewater, 2 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 11 Google reviews, open 24/7.
Based in Baltimore, 20 mi away
Ranked #20 because of its Google rating and availability: 4.9★ from 157 Google reviews, open 24/7.
Based in Baltimore, 38 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 125 Google reviews, listed on Google as “Waterproofing service”.
Based in Glenarden, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 95 Google reviews, listed on Google as “Waterproofing service”.
Based in Stevensville, 18 mi away
Ranked #23 because of its Google rating and availability: 4.9★ from 102 Google reviews, open 24/7.
Based in Rockville, 34 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Waterproofing service”.
Based in Glen Burnie, 14 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 54 Google reviews, open 24/7.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 180 ranked foundation repair companies here; the rest are on their profiles.
20 more foundation repair companies within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| All-dry Solutions | 5.0★ (2) | 35 mi |
| Anchor Waterproofing | 5.0★ (2) | 16 mi |
| Arundel Water Proofing | 5.0★ (1) | 14 mi |
| Atlantic Waterproofing | 1.0★ (1) | 22 mi |
| Bennett Waterproofing | 5.0★ (2) | 29 mi |
| Bertin Concrete, Inc | 5.0★ (1) | 21 mi |
| Commercial roofing | 1.0★ (1) | 24 mi |
| Drainage Solutions and Patios | 5.0★ (2) | 34 mi |
| Elite Estate Management LLC | 5.0★ (2) | 32 mi |
| Foundation Medix | 5.0★ (2) | 29 mi |
| Fox First Construction | 5.0★ (1) | 12 mi |
| HF Concrete Contractor | 5.0★ (1) | 24 mi |
| JAV Waterproofing Company LLC | 5.0★ (1) | 31 mi |
| Keystone Foundation Repair Inc | 4.0★ (1) | 11 mi |
| Keystone Foundation Repair Inc | 5.0★ (1) | 26 mi |
| Lee Foundation Co. Inc | 3.0★ (2) | 30 mi |
| Luciano Cristofaro Contractors Inc | 5.0★ (1) | 21 mi |
| NGS General Contractor LLC | 5.0★ (1) | 22 mi |
| R & R Contracting LLC | 2.0★ (2) | 27 mi |
| R&S Construction Co., Inc. | 5.0★ (1) | 7 mi |
National price ranges in USD, not adjusted for Londontowne. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Foundation repair | $2,225 | $5,174 | $8,133 | Per project: typical range of customer-reported repairs. US national range | October 2026 |
We scored 180 Londontowne foundation repair companies on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Londontowne data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |