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Best Foundation Repair Companies in Innisfil, ON (2026)

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

The short answer

  1. 1

    Best overall in Innisfil: Groundworks, CR Score 62/100; 4.9★ from 1,412 Google reviews; open 7 days a week.

  2. 2

    Best for emergencies (open 24/7): Aquamaster Basement Waterproofing Barrie, posts 24/7 hours; ranked #2 of 126.

  3. 12

    Most-reviewed: Dryshield Waterproofing Toronto, 245 Google reviews at 4.9★, the most of 126 ranked after Groundworks; ranked #12.

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

126 Innisfil foundation repair companies are ranked here by CR Score, from ten published factors. 46 are open 24/7, 101 open Saturdays and 80 open Sundays, based on posted hours. The median Google rating is 5.0★ across 126 rated businesses.

Top 10 foundation repair companies in Innisfil at a glance

Top 10 foundation repair companies in Innisfil at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Groundworks624.9★ (1,412)East Gwillimbury, 48 km awaySat · Sun · EveningsOverall
2Aquamaster Basement Waterproofing Barrie615.0★ (93)Barrie, 26 km away24/7Emergencies
3Pro-Leak Solutions615.0★ (208)East Gwillimbury, 33 km awaySat · Sun · Evenings—
4PH Group604.8★ (49)Angus, 15 km away24/7—
5Fast Fix Waterproofing & Foundations595.0★ (11)Barrie, 4 km away24/7—
6Main St. Waterproofing594.5★ (16)Barrie, 7 km away24/7—
7RCC Waterproofing Vaughan594.9★ (180)Concord, 59 km away24/7—
8Hillside Waterproofing595.0★ (97)Keswick, 17 km away24/7—
9Aquatech Basement Waterproofing Barrie585.0★ (30)Barrie, 18 km awaySat · Sun · Evenings—
10Aquatech Waterproofing585.0★ (78)Vaughan, 55 km away24/7—

The 126 best foundation repair companies in Innisfil, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Innisfil

    #1 Groundworks

    Based in East Gwillimbury, 48 km away

    62/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.9★ from 1,412 Google reviews, the most in Innisfil.

    • 4.9★ from 1,412 Google reviews
    Hours
    Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
    Address
    12029 McCowan Rd, Whitchurch-Stouffville, ON L4A 7X5
    View profile for Groundworks(365) 363-9900

  3. #3 Pro-Leak Solutions

    Based in East Gwillimbury, 33 km away

    61/100CR Score

    Ranked #3 because of its Google rating and trade focus: 5.0★ from 208 Google reviews, listed on Google as “Waterproofing service”.

    • 5.0★ from 208 Google reviews
    Hours
    Mon–Sun 8 AM–8 PM
    Address
    197 Main St, Schomberg, ON L0G 1T0
    View profile for Pro-Leak Solutions(647) 883-5700

  4. #4 PH Group

    Based in Angus, 15 km away

    60/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 49 Google reviews, listed on Google as “Waterproofing service”.

    • 4.8★ from 49 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2580 Sunnidale Rd, Utopia, ON L0M 1T0
    View profile for PH Group(705) 794-3884

  11. #11 Crack Busters

    Based in Bracebridge, 39 km away

    58/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.5★ from 72 Google reviews, listed on Google as “Waterproofing service”.

    • 4.5★ from 72 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2 Moon Crescent, Oro-Medonte, ON L4M 5T8
    View profile for Crack Busters(705) 716-3290

  13. #13 Barrie HP

    Based in Barrie, 20 km away

    58/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Waterproofing service”.

    • 5.0★ from 9 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Barrie HP(647) 243-3679

  15. #15 Stay Dry Waterproofing

    Based in North York, 63 km away

    57/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “Waterproofing service”.

    • 4.8★ from 97 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    168A Oakdale Rd Unit 7, North York, ON M3N 1V9
    View profile for Stay Dry Waterproofing(416) 782-9379

  23. #23 Sign Waterproofing

    Based in Markham, 60 km away

    55/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “Waterproofing service”.

    • 4.9★ from 42 Google reviews
    Hours
    Mon–Sun 8 AM–8 PM
    Address
    Manston Crescent, Markham, ON L3R 7A5
    View profile for Sign Waterproofing(647) 568-1718

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 126 ranked foundation repair companies here; the rest are on their profiles.

foundation repair companies in Innisfil, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Dryshield Basement Waterproofing544.5★ (63)56 km
27Dryshield Basement Waterproofing Barrie545.0★ (15)47 km
28Main St. Waterproofing544.6★ (9)50 km
29Royal Work Waterproofing545.0★ (68)63 km
30Waterproofing MS545.0★ (5)48 km
31WetFix Basement Waterproofing545.0★ (7)38 km
32Expert Waterproofing545.0★ (5)49 km
33MT Drains & Plumbing - Basement Waterproofing & Drain Repair Barrie544.6★ (5)9 km
34Umbrella Waterproofing Plumbing and Drains535.0★ (8)45 km
35Plumbing Nerds: Plumbing & Drain Services near Bradford, ON534.9★ (34)22 km
36911 Roofer534.3★ (15)In Innisfil
37GTA EPOXY INJECTIONS534.1★ (17)62 km
38CCL LANDSCAPE DESIGN LTD.534.7★ (27)In Innisfil
39NTL Contracting and Waterproofing Inc.534.8★ (49)61 km
40ACCL Wet Basement, Foundation Crack Repair and Waterproofing535.0★ (4)55 km
41Drycrete Contracting534.7★ (14)8 km
42PLUMBER ON DEMAND of THORNHILL, ON534.9★ (173)57 km
43PLUMBER ON DEMAND of RICHMOND HILL, ON524.9★ (91)47 km
44Cosmaroma Home Renovation Supplies - Barrie524.6★ (83)5 km
45Toronto Foundation Repair525.0★ (8)57 km
46Dr.Pipe Drain and Plumbing524.9★ (131)59 km
47Dryshield Basement Waterproofing Hamilton525.0★ (10)64 km
48Century masonry contracting525.0★ (6)10 km
49Raul Concrete Foundation525.0★ (4)30 km
50Spray Foam Kings514.9★ (64)37 km

Also serving Innisfil

20 more foundation repair companies within 64 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked foundation repair companies serving Innisfil
BusinessGoogle ratingDistance
905 leaky basement solutions5.0★ (2)18 km
Alamita Inc.In Innisfil
Basement Waterproofing Markham5.0★ (2)58 km
D.O.V Design & Renovation5.0★ (11)In Innisfil
D.S Foundation and Concrete5.0★ (2)55 km
DPL Renovations Ltd.5.0★ (6)In Innisfil
Eagle Ridge Contracting Inc4.6★ (10)In Innisfil
Eminence Construction5.0★ (8)In Innisfil
First Base Construction inc.5.0★ (2)59 km
Homepros basement waterproofing Concord5.0★ (2)60 km
MT Drains & Plumbers Newmarket : Foundation Repair & Basement Waterproofing Aurora5.0★ (2)33 km
PHD Plumbing and Drain well service in innisfil5.0★ (33)In Innisfil
Pro Home RoofingIn Innisfil
Roof Wise Roofing & Masonry3.0★ (2)59 km
SCL Simcoe Contracting and Landscaping Inc.5.0★ (23)In Innisfil
Servinho Home Improvements Ltd4.5★ (18)In Innisfil
Simcoe Foundation Coating (1991 Inc)5.0★ (1)In Innisfil
Sohi renovation5.0★ (2)In Innisfil
Soil Surgeons Excavating, Grading, & Septic5.0★ (2)48 km
V GROUP5.0★ (5)In Innisfil

How much do foundation repair companies cost in Innisfil?

US national ranges converted to CAD, not adjusted for Innisfil. Each row names its basis and the month we checked it.

How much do foundation repair companies cost in Innisfil?
JobLowTypicalHighBasisChecked
Foundation repairCA$3,130CA$7,270CA$11,430Per project: typical range of customer-reported repairs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)October 2026

How we ranked Innisfil foundation repair companies

We scored 126 Innisfil 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 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 Innisfil data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Foundation repair companies in Innisfil: frequently asked questions

Who is the best foundation repair company in Innisfil?

By CR Score, the highest-ranked foundation repair company in Innisfil, ON is Groundworks with a CR Score of 62/100. It has 4.9★ from 1,412 Google reviews. It is open 7 days a week. Aquamaster Basement Waterproofing Barrie (#2) and Pro-Leak Solutions (#3) follow. We ranked 126 foundation repair companies on ten factors, last updated October 22, 2026.

How many foundation repair companies are there in Innisfil?

ContractorsRanked ranks 126 foundation repair companies serving Innisfil, ON. 2 of them are based in Innisfil; the rest serve it from nearby towns. Another 20 within 64 km are listed but not ranked yet. Counts are as of October 2026.

Which foundation repair companies in Innisfil are open 24/7?

46 ranked foundation repair companies in Innisfil post 24/7 hours. The highest-ranked are Aquamaster Basement Waterproofing Barrie (#2), PH Group (#4) and Fast Fix Waterproofing & Foundations (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which foundation repair companies in Innisfil work on weekends?

101 of 126 ranked foundation repair companies post Saturday hours and 80 post Sunday hours. The highest-ranked open Saturdays are Groundworks (#1), Aquamaster Basement Waterproofing Barrie (#2) and Pro-Leak Solutions (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does foundation repair cost in Innisfil?

Foundation repair typically costs CA$3,130 to CA$11,430, with CA$7,270 typical (Per project: typical range of customer-reported repairs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for Innisfil. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Innisfil foundation repair companies have?

The median Google rating among 126 rated foundation repair companies in Innisfil is 5.0★, with a median of 17 reviews. Groundworks has the most, 1,412 reviews, and ranks #1. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do foundation repair companies outside Innisfil count in this ranking?

Yes, if they are within 64 km of the Innisfil city centre, 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 Innisfil

  1. October 2026: CR Scores recalculated for 126 foundation repair companies serving Innisfil.

More foundation repair companies and Innisfil pages

Other trades in Innisfil