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Best Foundation Repair Companies in Key Biscayne, FL (2026)

184 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Key Biscayne: Impervious Waterproofing Systems, LLC, CR Score 85/100; 5.0★ from 42 Google reviews; open 7 days a week.

  2. 3

    Best for emergencies (open 24/7): AdvantaClean of Fort Lauderdale, posts 24/7 hours; ranked #3 of 184.

  3. 8

    Most-reviewed: Koala Insulation of Miami, 328 Google reviews at 5.0★, the most of 184 ranked; ranked #8.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

184 Key Biscayne foundation repair companies are ranked here by CR Score, from 8 published factors. 30 are open 24/7, 114 open Saturdays and 70 open Sundays, based on posted hours. The median Google rating is 4.9★ across 184 rated businesses.

Most of this list also appears on the Foundation repair companies in Miami ranking. See Foundation repair companies in Miami

Top 10 foundation repair companies in Key Biscayne at a glance

Top 10 foundation repair companies in Key Biscayne at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Impervious Waterproofing Systems, LLC855.0★ (42)Opa-locka, 15 mi awaySat · SunOverall
2Alpha Foundations844.9★ (107)Coral Gables, 9 mi awaySat · Sun · Evenings—
3AdvantaClean of Fort Lauderdale835.0★ (288)Oakland Park, 33 mi away24/7Emergencies
4Aguiar Flooring LLC - Laminate & Waterproof Floors824.9★ (41)Country Club, 18 mi away24/7—
5Thompson's Roofing824.9★ (125)Pembroke Pines, 25 mi away24/7—
6Spray & Wash825.0★ (124)Dania Beach, 29 mi away24/7—
7RestoPro770824.9★ (235)Sunrise, 35 mi away24/7—
8Koala Insulation of Miami815.0★ (328)Miami, 7 mi awaySatMost reviews
9The Flat Roof Specialist814.8★ (79)Hollywood, 23 mi away24/7—
10Alpha Foundations814.9★ (282)Pompano Beach, 39 mi awaySat · Sun · Evenings—

The 184 best foundation repair companies in Key Biscayne, 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.

  2. #2 Alpha Foundations

    Based in Coral Gables, 9 mi away

    84/100CR Score

    Ranked #2 because of its Google rating and availability: 4.9★ from 107 Google reviews, open 7 days a week.

    • 4.9★ from 107 Google reviews
    Hours
    Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
    Address
    4800 W Flagler St Suite # 227, Coral Gables, FL 33134
    View profile for Alpha Foundations(786) 745-7911

  5. #5 Thompson's Roofing

    Based in Pembroke Pines, 25 mi away

    82/100CR Score

    Ranked #5 because of its Google rating and availability: 4.9★ from 125 Google reviews, open 24/7.

    • 4.9★ from 125 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8570 Stirling Rd SUITE 102-333 SUITE 102-333, Pembroke Pines, FL 33024
    View profile for Thompson's Roofing(954) 967-1918

  7. #7 RestoPro770

    Based in Sunrise, 35 mi away

    82/100CR Score

    Ranked #7 because of its Google rating and availability: 4.9★ from 235 Google reviews, open 24/7.

    • 4.9★ from 235 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4545 NW 103rd Ave STE 203, Sunrise, FL 33351
    View profile for RestoPro770(954) 719-7700

  10. #10 Alpha Foundations

    Based in Pompano Beach, 39 mi away

    81/100CR Score

    Ranked #10 because of its Google rating and review volume: 4.9★ from 282 Google reviews, 282 Google reviews.

    • 4.9★ from 282 Google reviews
    Hours
    Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
    Address
    3200 W Copans Rd, Pompano Beach, FL 33069
    View profile for Alpha Foundations(954) 870-4848

  13. #13 Palma Roofing

    Based in Miami, 8 mi away

    80/100CR Score

    Ranked #13 because of its Google rating and availability: 4.9★ from 66 Google reviews, open 7 days a week.

    • 4.9★ from 66 Google reviews
    Hours
    Mon–Sun 8 AM–5 PM
    Address
    2901 NW 7th Ave, Miami, FL 33127
    View profile for Palma Roofing(786) 803-5439

  16. #16 LRE Foundation Repair

    Based in Fort Lauderdale, 30 mi away

    80/100CR Score

    Ranked #16 because of its Google rating and review volume: 4.8★ from 130 Google reviews, 130 Google reviews.

    • 4.8★ from 130 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun 9 AM–4 PM
    Address
    702 NW 9th Ave, Fort Lauderdale, FL 33311
    View profile for LRE Foundation Repair(954) 280-2627

  24. #24 Planet Roofing

    Based in Fort Lauderdale, 30 mi away

    79/100CR Score

    Ranked #24 because of its Google rating and review volume: 4.8★ from 235 Google reviews, 235 Google reviews.

    • 4.8★ from 235 Google reviews
    Hours
    Mon–Sun 8 AM–8 PM
    Address
    100 N Federal Hwy Unit 842, Fort Lauderdale, FL 33301
    View profile for Planet Roofing(954) 600-1462

How much do foundation repair companies cost in Key Biscayne?

National price ranges in USD, not adjusted for Key Biscayne. Each row names its basis and the month we checked it.

How much do foundation repair companies cost in Key Biscayne?
JobLowTypicalHighBasisChecked
Foundation repair$2,225$5,174$8,133Per project: typical range of customer-reported repairs. US national rangeOctober 2026

How we ranked Key Biscayne foundation repair companies

We scored 184 Key Biscayne 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Key Biscayne data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Foundation repair companies in Key Biscayne: frequently asked questions

Who is the best foundation repair company in Key Biscayne?

By CR Score, the highest-ranked foundation repair company in Key Biscayne, FL is Impervious Waterproofing Systems, LLC with a CR Score of 85/100. It has 5.0★ from 42 Google reviews. It is open 7 days a week. Alpha Foundations (#2) and AdvantaClean of Fort Lauderdale (#3) follow. We ranked 184 foundation repair companies on 8 factors, last updated October 22, 2026.

How many foundation repair companies are there in Key Biscayne?

ContractorsRanked ranks 184 foundation repair companies serving Key Biscayne, FL. Counts are as of October 2026.

Which foundation repair companies in Key Biscayne are open 24/7?

30 ranked foundation repair companies in Key Biscayne post 24/7 hours. The highest-ranked are AdvantaClean of Fort Lauderdale (#3), Aguiar Flooring LLC - Laminate & Waterproof Floors (#4) and Thompson's Roofing (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which foundation repair companies in Key Biscayne work on weekends?

114 of 184 ranked foundation repair companies post Saturday hours and 70 post Sunday hours. The highest-ranked open Saturdays are Impervious Waterproofing Systems, LLC (#1), Alpha Foundations (#2) and AdvantaClean of Fort Lauderdale (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does foundation repair cost in Key Biscayne?

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 Key Biscayne. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Key Biscayne foundation repair companies have?

The median Google rating among 184 rated foundation repair companies in Key Biscayne is 4.9★, with a median of 20 reviews. Koala Insulation of Miami has the most, 328 reviews, and ranks #8. 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 Key Biscayne count in this ranking?

Yes, if they are within 40 mi of the Key Biscayne 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 Key Biscayne

  1. October 2026: CR Scores recalculated for 184 foundation repair companies serving Key Biscayne.

More foundation repair companies and Key Biscayne pages

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