89/100CR 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 South Bel Air, MD (2026)
110 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South Bel Air: Best Buy Waterproofing, CR Score 89/100; 5.0★ from 572 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Thompson & Sons Waterproofing Inc., posts 24/7 hours; ranked #4 of 110.
- 43
Most-reviewed: The Exterior Company, 2,185 Google reviews at 4.8★, the most of 110 ranked; ranked #43.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
110 South Bel Air foundation repair companies are ranked here by CR Score, from 8 published factors. 17 are open 24/7, 76 open Saturdays and 36 open Sundays, based on posted hours. The median Google rating is 4.8★ across 110 rated businesses.
Top 10 foundation repair companies in South Bel Air at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Best Buy Waterproofing | 89 | 5.0★ (572) | Columbia, 33 mi away | 24/7 | Overall |
| 2 | JES Foundation Repair | 88 | 4.7★ (940) | Baltimore, 13 mi away | Sat · Sun · Evenings | — |
| 3 | Drift Waterproofing & Renovations | 88 | 5.0★ (96) | Bel Air, 2 mi away | Sat · Sun · Evenings | — |
| 4 | Thompson & Sons Waterproofing Inc. | 87 | 5.0★ (153) | Baltimore, 32 mi away | 24/7 | Emergencies |
| 5 | All-Ways Dry Basement Waterproofing | 86 | 5.0★ (133) | Timonium, 17 mi away | Sat · Sun | — |
| 6 | Oriole Basement Waterproofing & Foundation Repair | 86 | 4.9★ (239) | Bel Air, 1 mi away | Sat · Evenings | — |
| 7 | Value Dry Basement Waterproofing | 85 | 4.7★ (334) | Odenton, 37 mi away | 24/7 | — |
| 8 | ELG Basement Waterproofing Baltimore | 85 | 4.9★ (33) | Baltimore, 22 mi away | 24/7 | — |
| 9 | '58 Foundations & Waterproofing | 84 | 4.7★ (367) | Arbutus, 28 mi away | Sat · Sun · Evenings | — |
| 10 | 58 Foundations & Waterproofing | 83 | 4.9★ (140) | Red Lion, 29 mi away | Sat · Sun · Evenings | — |
The 110 best foundation repair companies in South Bel Air, 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 Baltimore, 13 mi away
88/100CR ScoreRanked #2 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 Bel Air, 2 mi away
88/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 96 Google reviews
- Hours
- Mon–Sun 6 AM–8 PM
- Address
- 1219 Hickory Brook Ct, Bel Air, MD 21014
Based in Baltimore, 32 mi away
87/100CR 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 Timonium, 17 mi away
86/100CR ScoreRanked #5 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 Bel Air, 1 mi away
86/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 239 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 239 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
- Address
- 123 Briarcliff Ln, Bel Air, MD 21014
Based in Odenton, 37 mi away
85/100CR ScoreRanked #7 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
85/100CR ScoreRanked #8 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, 28 mi away
84/100CR ScoreRanked #9 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 Red Lion, 29 mi away
83/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 140 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 140 Google reviews
- Hours
- Mon–Fri 8 AM–12 AM · Sat–Sun 9 AM–12 AM
- Address
- 74 1st Ave, Red Lion, PA 17356
Based in Arbutus, 29 mi away
83/100CR ScoreRanked #11 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 Baltimore, 22 mi away
83/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 72 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 72 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 10 W Eager St Ste 313, Baltimore, MD 21201
Based in Newark, 33 mi away
82/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 196 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 196 Google reviews
- Hours
- Mon–Fri 8 AM–12 AM · Sat–Sun 9 AM–12 AM
- Address
- 675 Dawson Dr, Newark, DE 19713
Based in Lancaster, 37 mi away
82/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 185 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 185 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 2348 Harrisburg Pike, Lancaster, PA 17601
Based in Arbutus, 28 mi away
82/100CR ScoreRanked #15 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 Towson, 17 mi away
81/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 17 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 28 E Susquehanna Ave Suite 8, Towson, MD 21286
Based in Pasadena, 30 mi away
81/100CR ScoreRanked #17 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
Based in Lancaster, 35 mi away
81/100CR ScoreRanked #18 because of its Google rating and availability: 4.7★ from 14 Google reviews, open 24/7.
- 4.7★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 833 2nd St Suite C, Lancaster, PA 17603
Based in Arbutus, 23 mi away
81/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 26 Google reviews
- Hours
- Mon–Tue 7 AM–7 PM · Wed 9 AM–7 PM · Thu–Fri 7 AM–7 PM · Sat–Sun 9 AM–3 PM
Based in Baltimore, 27 mi away
80/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 157 Google reviews, open 24/7.
- 4.9★ from 157 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Bel Air, 3 mi away
80/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 187 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 187 Google reviews
- Hours
- Mon–Fri 8:30 AM–7 PM · Sat–Sun closed
- Address
- 109 E Wheel Rd, Bel Air, MD 21015
#22 Groundworks
Based in York, 36 mi away
80/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.6★ from 124 Google reviews, listed on Google as “Waterproofing service”.
- 4.6★ from 124 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 800 E King St Suite 518, York, PA 17403
Based in Annapolis, 38 mi away
79/100CR ScoreRanked #23 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
Based in Columbia, 36 mi away
79/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 110 Google reviews, open 24/7.
- 5.0★ from 110 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 385 Summit Dr, Columbia, PA 17512
Based in Bel Air North, 7 mi away
79/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 14 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 1356 Jarrettsville Rd, Forest Hill, MD 21050
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 110 ranked foundation repair companies here; the rest are on their profiles.
Also serving South Bel Air
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 |
|---|---|---|
| A A Action Waterproofing Inc | 1 mi | |
| Aardvark Waterproofing LLC | 5.0★ (2) | 29 mi |
| AC Masonry LLC | 5.0★ (1) | 32 mi |
| All-dry Solutions | 5.0★ (2) | 8 mi |
| Anchor Waterproofing | 5.0★ (2) | 30 mi |
| Arundel Water Proofing | 5.0★ (1) | 31 mi |
| Avg Waterproofing | 5.0★ (1) | 32 mi |
| BZ Waterproofing & Foundation Repair, LLC | 5.0★ (1) | 30 mi |
| Commercial roofing | 1.0★ (1) | 19 mi |
| Division 7 contracting llc | 5.0★ (1) | 36 mi |
| Fox First Construction | 5.0★ (1) | 36 mi |
| Keystone Foundation Repair Inc | 5.0★ (1) | 35 mi |
| Keystone Foundation Repair Inc | 17 mi | |
| Lancaster Waterproofing Solutions | 5.0★ (2) | 35 mi |
| Lee Foundation Co. Inc | 3.0★ (2) | 13 mi |
| Luciano Cristofaro Contractors Inc | 5.0★ (1) | 28 mi |
| Poured Foundations of Delaware, Inc. | 5.0★ (1) | 34 mi |
| R & R Contracting LLC | 2.0★ (2) | 16 mi |
| Rodriguez&Rivas General Construction LLC | 16 mi | |
| Walter W. Zeigler's Sons | 5.0★ (2) | 37 mi |
How much do foundation repair companies cost in South Bel Air?
National price ranges in USD, not adjusted for South Bel Air. 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 South Bel Air foundation repair companies
We scored 110 South Bel Air 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 South Bel Air 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 South Bel Air: frequently asked questions
Who is the best foundation repair company in South Bel Air?
By CR Score, the highest-ranked foundation repair company in South Bel Air, MD is Best Buy Waterproofing with a CR Score of 89/100. It has 5.0★ from 572 Google reviews. It is open 24/7. JES Foundation Repair (#2) and Drift Waterproofing & Renovations (#3) follow. We ranked 110 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in South Bel Air?
ContractorsRanked ranks 110 foundation repair companies serving South Bel Air, MD. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in South Bel Air are open 24/7?
17 ranked foundation repair companies in South Bel Air post 24/7 hours. The highest-ranked are Best Buy Waterproofing (#1), Thompson & Sons Waterproofing Inc. (#4) and Value Dry Basement Waterproofing (#7). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in South Bel Air work on weekends?
76 of 110 ranked foundation repair companies post Saturday hours and 36 post Sunday hours. The highest-ranked open Saturdays are Best Buy Waterproofing (#1), JES Foundation Repair (#2) and Drift Waterproofing & Renovations (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in South Bel Air?
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 South Bel Air. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do South Bel Air foundation repair companies have?
The median Google rating among 110 rated foundation repair companies in South Bel Air is 4.8★, with a median of 40 reviews. The Exterior Company has the most, 2,185 reviews, and ranks #43. 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 South Bel Air count in this ranking?
Yes, if they are within 40 mi of the South Bel Air 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 South Bel Air
- October 2026: CR Scores recalculated for 110 foundation repair companies serving South Bel Air.
More foundation repair companies and South Bel Air pages
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