92/100CR Score
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
Best Foundation Repair Companies in Largo, MD (2026)
209 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Largo: Best Buy Waterproofing, CR Score 92/100; 5.0★ from 572 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Value Dry Basement Waterproofing, posts 24/7 hours; ranked #2 of 209.
- 7
Most-reviewed: NV Waterproofing & Foundation Repair, 975 Google reviews at 4.9★, the most of 209 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
209 Largo foundation repair companies are ranked here by CR Score, from 8 published factors. 39 are open 24/7, 147 open Saturdays and 81 open Sundays, based on posted hours. The median Google rating is 4.9★ across 209 rated businesses.
Top 10 foundation repair companies in Largo at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Best Buy Waterproofing | 92 | 5.0★ (572) | Columbia, 23 mi away | 24/7 | Overall |
| 2 | Value Dry Basement Waterproofing | 91 | 4.9★ (251) | Arlington, 13 mi away | 24/7 | Emergencies |
| 3 | Value Dry Basement Waterproofing | 90 | 4.7★ (334) | Odenton, 15 mi away | 24/7 | — |
| 4 | Thompson & Sons Waterproofing Inc. | 90 | 5.0★ (153) | Baltimore, 22 mi away | 24/7 | — |
| 5 | Tru Integrity LLC | 88 | 5.0★ (147) | Baltimore, 9 mi away | Sat · Sun · Evenings | — |
| 6 | Armored Basement Waterproofing | 88 | 5.0★ (128) | Baltimore, 27 mi away | 24/7 | — |
| 7 | NV Waterproofing & Foundation Repair | 86 | 4.9★ (975) | Manassas, 40 mi away | Sat · Sun | Most reviews |
| 8 | Basement Waterproofing DC | 86 | 5.0★ (13) | Washington, D.C., 10 mi away | 24/7 | — |
| 9 | JES Foundation Repair | 86 | 4.6★ (159) | Washington, D.C., 10 mi away | Sat · Sun · Evenings | — |
| 10 | '58 Foundations & Waterproofing | 85 | 4.7★ (367) | Arbutus, 24 mi away | Sat · Sun · Evenings | — |
The 209 best foundation repair companies in Largo, ranked
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.
Based in Arlington, 13 mi away
91/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 251 Google reviews, open 24/7.
- 4.9★ from 251 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1614 10th St S, Arlington, VA 22204
Based in Odenton, 15 mi away
90/100CR ScoreRanked #3 because of its Google rating and availability: 4.7★ from 334 Google reviews, open 24/7.
- 4.7★ from 334 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1434 Odenton Rd, Odenton, MD 21113
Based in Baltimore, 22 mi away
90/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 153 Google reviews, open 24/7.
- 5.0★ from 153 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Baltimore, 9 mi away
88/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 147 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 147 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–6 PM
Based in Baltimore, 27 mi away
88/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 128 Google reviews, open 24/7.
- 5.0★ from 128 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Manassas, 40 mi away
86/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 975 Google reviews, the most Google reviews on this list (975).
- 4.9★ from 975 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 10 AM–4 PM
- Address
- 12200 Livingston Rd #100, Manassas, VA 20109
Based in Washington, D.C., 10 mi away
86/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Washington, D.C., 10 mi away
86/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 159 Google reviews, listed on Google as “Waterproofing service”.
- 4.6★ from 159 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
Based in Arbutus, 24 mi away
85/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 367 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 367 Google reviews
- Hours
- Mon–Fri 8 AM–12 AM · Sat–Sun 9 AM–12 AM
- Address
- 823 N Hammonds Ferry Rd Suite D, Linthicum Heights, MD 21090
Based in Baltimore, 23 mi away
85/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 125 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 125 Google reviews
- Hours
- Mon–Sun 8 AM–11 PM
Based in Baltimore, 39 mi away
85/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 940 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 940 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 8361 Town Center Ct, Nottingham, MD 21236
Based in Glenarden, 2 mi away
85/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 95 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 95 Google reviews
- Hours
- Mon–Sat 7 AM–9 PM · Sun closed
- Address
- 9103 Woodmore Center Dr, Glenarden, MD 20706
Based in Baltimore, 30 mi away
84/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 33 Google reviews, open 24/7.
- 4.9★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 110 W Mulberry St, Baltimore, MD 21201
Based in Arbutus, 23 mi away
84/100CR ScoreRanked #15 because of its Google rating and availability: 4.6★ from 30 Google reviews, open 24/7.
- 4.6★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 516 Greenwood Rd, Linthicum Heights, MD 21090
Based in Rockville, 22 mi away
84/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 55 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 330 N Stonestreet Ave Unit S, Rockville, MD 20850
Based in Annandale, 15 mi away
84/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 35 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 10 AM–4 PM
Based in Dale City, 31 mi away
84/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 265 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 265 Google reviews
- Hours
- Mon–Fri 8 AM–12 AM · Sat–Sun 9 AM–12 AM
- Address
- 14000 Crown Ct Unit 107, Woodbridge, VA 22193
Based in Arbutus, 24 mi away
84/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 249 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 249 Google reviews
- Hours
- Mon–Thu 8 AM–8 PM · Fri 8 AM–5 PM · Sat 9 AM–5 PM · Sun closed
- Address
- 5191 Raynor Ave, Linthicum Heights, MD 21090
Based in Springfield, 23 mi away
84/100CR ScoreRanked #20 because of its Google rating and availability: 4.7★ from 682 Google reviews, open 24/7.
- 4.7★ from 682 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7420 Fullerton Rd #100, Springfield, VA 22153
Based in Annapolis, 18 mi away
84/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 74 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 74 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 645 Ridgely Ave Suite 201, Annapolis, MD 21401
#22 Core Team Inc.
Based in Bethesda, 15 mi away
83/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 113 Google reviews, open 24/7.
- 5.0★ from 113 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4800 Hampden Ln #200, Bethesda, MD 20814
Based in Timonium, 38 mi away
83/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 133 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 133 Google reviews
- Hours
- Mon 8 AM–6 PM · Tue 6 AM–6 PM · Wed–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun 10 AM–4 PM
- Address
- 1721 Kurtz Ave, Timonium, MD 21093
Based in Damascus, 34 mi away
83/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 120 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 120 Google reviews
- Hours
- Mon–Fri 8 AM–9 PM · Sat 9 AM–9 PM · Sun 9 AM–8 PM
- Address
- 9516 Faith Ln, Damascus, MD 20872
Based in Pasadena, 22 mi away
83/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 47 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 47 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 9 AM–3 PM · Sun 9 AM–12 PM
- Address
- 3236 Mountain Rd, Pasadena, MD 21122
Foundation repair companies ranked #26 to #50
#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 209 ranked foundation repair companies here; the rest are on their profiles.
Also serving Largo
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 |
|---|---|---|
| Affordable Eastern Shore Waterproofing | 5.0★ (1) | 23 mi |
| Anchor Waterproofing | 5.0★ (2) | 21 mi |
| Arundel Water Proofing | 5.0★ (1) | 21 mi |
| Atlantic Waterproofing | 1.0★ (1) | 12 mi |
| Austin Paving & Sealing | 5.0★ (1) | 22 mi |
| Bennett Waterproofing | 5.0★ (2) | 19 mi |
| Bertin Concrete, Inc | 5.0★ (1) | 11 mi |
| Drainage Solutions and Patios | 5.0★ (2) | 19 mi |
| Elite Estate Management LLC | 5.0★ (2) | 22 mi |
| Foundation Medix | 5.0★ (2) | 14 mi |
| Fox First Construction | 5.0★ (1) | 16 mi |
| HF Concrete Contractor | 5.0★ (1) | 11 mi |
| JAV Waterproofing Company LLC | 5.0★ (1) | 17 mi |
| Keystone Foundation Repair Inc | 4.0★ (1) | 8 mi |
| Lee Foundation Co. Inc | 3.0★ (2) | 38 mi |
| NGS General Contractor LLC | 5.0★ (1) | 8 mi |
| R & R Contracting LLC | 2.0★ (2) | 36 mi |
| R&S Construction Co., Inc. | 5.0★ (1) | 8 mi |
| Steele Foundation, LLC | 5.0★ (1) | 19 mi |
| Superior Foundation Inc | 1.0★ (1) | 22 mi |
How much do foundation repair companies cost in Largo?
National price ranges in USD, not adjusted for Largo. 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 |
How we ranked Largo foundation repair companies
We scored 209 Largo 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 Largo 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 |
Foundation repair companies in Largo: frequently asked questions
Who is the best foundation repair company in Largo?
By CR Score, the highest-ranked foundation repair company in Largo, MD is Best Buy Waterproofing with a CR Score of 92/100. It has 5.0★ from 572 Google reviews. It is open 24/7. Value Dry Basement Waterproofing (#2) and Value Dry Basement Waterproofing (#3) follow. We ranked 209 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Largo?
ContractorsRanked ranks 209 foundation repair companies serving Largo, MD. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Largo are open 24/7?
39 ranked foundation repair companies in Largo post 24/7 hours. The highest-ranked are Best Buy Waterproofing (#1), Value Dry Basement Waterproofing (#2) and Value Dry Basement Waterproofing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Largo work on weekends?
147 of 209 ranked foundation repair companies post Saturday hours and 81 post Sunday hours. The highest-ranked open Saturdays are Best Buy Waterproofing (#1), Value Dry Basement Waterproofing (#2) and Value Dry Basement Waterproofing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Largo?
Foundation repair typically costs $2,225 to $8,133, with $5,174 typical (Per project: typical range of customer-reported repairs. US national range). This is a national range, not adjusted for Largo. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Largo foundation repair companies have?
The median Google rating among 209 rated foundation repair companies in Largo is 4.9★, with a median of 32 reviews. NV Waterproofing & Foundation Repair has the most, 975 reviews, and ranks #7. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank foundation repair companies?
Each foundation repair company gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Largo count in this ranking?
Yes, if they are within 40 mi of the Largo city center, our service radius for foundation repair companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Largo
- October 2026: CR Scores recalculated for 209 foundation repair companies serving Largo.
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