151 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Manassas: NV Waterproofing & Foundation Repair, CR Score 65/100; 4.9★ from 975 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Value Dry Basement Waterproofing, posts 24/7 hours; ranked #3 of 151.
Most-reviewed: JES Foundation Repair, 1,929 Google reviews at 4.7★, the most of 151 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
151 Manassas foundation repair companies are ranked here by CR Score, from ten published factors. 26 are open 24/7, 105 open Saturdays and 61 open Sundays, based on posted hours. The median Google rating is 4.9★ across 151 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NV Waterproofing & Foundation Repair | 65 | 4.9★ (975) | Manassas | Sat · Sun | Overall |
| 2 | JES Foundation Repair | 64 | 4.7★ (1,929) | Gainesville, 6 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Value Dry Basement Waterproofing | 61 | 4.9★ (251) | Arlington, 23 mi away | 24/7 | Emergencies |
| 4 | 58 Foundations & Waterproofing | 60 | 4.7★ (265) | Dale City, 11 mi away | Sat · Sun · Evenings | — |
| 5 | Brother's Waterproofing LLC | 60 | 4.9★ (125) | Baltimore, 13 mi away | Sat · Sun · Evenings | — |
| 6 | Tru Integrity LLC | 58 | 5.0★ (147) | Baltimore, 30 mi away | Sat · Sun · Evenings | — |
| 7 | Basement Masters Waterproofing | 57 | 4.8★ (66) | Gainesville, 8 mi away | Sat · Evenings | — |
| 8 | Basement Gurus LLC | 57 | 5.0★ (29) | Elkton, 13 mi away | Sat · Sun · Evenings | — |
| 9 | Summit Waterproofing | 57 | 4.9★ (36) | Fredericksburg, 28 mi away | 24/7 | — |
| 10 | Exterior Waterproofing Experts, A Division of Clifton Contracting | 57 | 4.8★ (17) | Fairfax, 7 mi away | Sat · Sun | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 975 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gainesville, 6 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 1,929 Google reviews, the most in Manassas.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arlington, 23 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 251 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dale City, 11 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 265 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baltimore, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 125 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baltimore, 30 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 147 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gainesville, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 66 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Elkton, 13 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fredericksburg, 28 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfax, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baltimore, 13 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 134 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Washington, D.C., 27 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 159 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Springfield, 15 mi away
Ranked #13 because of its Google rating and review volume: 4.7★ from 682 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Annandale, 21 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockville, 29 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sterling, 18 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 83 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #17 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Waterproofing service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Baltimore, 13 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #19 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burke, 16 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Washington, D.C., 27 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chantilly, 6 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alexandria, 20 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Baltimore, 13 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 52 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chantilly, 9 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Manassas. 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 151 Manassas foundation repair companies on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 23, 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 Manassas data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |