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Best Foundation Repair Companies in Oak Harbor, WA (2026)

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

The short answer

  1. 1

    Best overall in Oak Harbor: Washington Roofing Services, CR Score 57/100; 4.9★ from 205 Google reviews; open 24/7.

  2. 5

    Best for emergencies (open 24/7): Rainier Foundation & Waterproofing, posts 24/7 hours; ranked #5 of 38.

  3. 9

    Most-reviewed: 1-866-SLABJACK, 380 Google reviews at 4.9★, the most of 38 ranked; ranked #9.

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

38 Oak Harbor foundation repair companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 16 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 5.0★ across 38 rated businesses.

Top 10 foundation repair companies in Oak Harbor at a glance

Top 10 foundation repair companies in Oak Harbor at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Washington Roofing Services574.9★ (205)Arlington, 22 mi away24/7Overall
2Groundworks564.9★ (268)Arlington, 24 mi awaySat · Sun · Evenings—
3Smokey Point Concrete554.3★ (35)Arlington, 24 mi awaySat—
4R&R Foundation Specialist534.7★ (309)Everett, 30 mi away——
5Rainier Foundation & Waterproofing535.0★ (5)Bothell, 40 mi away24/7Emergencies
6Basement Expert Waterproofing of Seattle525.0★ (14)Lynnwood, 38 mi awaySat—
7Van-Isle Coating & Sealants515.0★ (9)Victoria, 36 mi awaySat—
8Ultra Quality Construction LLC514.9★ (71)Lynnwood, 36 mi awaySat · Sun · Evenings—
91-866-SLABJACK514.9★ (380)Lynnwood, 37 mi away—Most reviews
10Allied Waterproofing & Drainage514.9★ (62)Everett, 31 mi away——

The 38 best foundation repair companies in Oak Harbor, 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.

  2. #2 Groundworks

    Based in Arlington, 24 mi away

    56/100CR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 268 Google reviews.

    • 4.9★ from 268 Google reviews
    Hours
    Mon–Fri 4 AM–8 PM · Sat 5 AM–8 PM · Sun 7 AM–8 PM
    Address
    18931 59th Ave NE SUITE 5, Arlington, WA 98223
    View profile for Groundworks(360) 282-2121

  3. #3 Smokey Point Concrete

    Based in Arlington, 24 mi away

    55/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.3★ from 35 Google reviews, listed on Google as “Foundation”.

    • 4.3★ from 35 Google reviews
    Hours
    Mon–Fri 6 AM–5 PM · Sat 7 AM–12 PM · Sun closed
    Address
    23315 Dike Rd, Arlington, WA 98223
    View profile for Smokey Point Concrete(360) 856-0422

  9. #9 1-866-SLABJACK

    Based in Lynnwood, 37 mi away

    51/100CR Score

    Ranked #9 because of its Google rating and review volume: 4.9★ from 380 Google reviews, the most in Oak Harbor.

    • 4.9★ from 380 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    6116 211th St SW Suite 204, Lynnwood, WA 98036
    View profile for 1-866-SLABJACK(866) 752-2522

  12. #12 Gp General Corp

    Based in Everett, 32 mi away

    50/100CR Score

    Ranked #12 because of its Google rating and review volume: 5.0★ from 28 Google reviews.

    • 5.0★ from 28 Google reviews
    Hours
    Mon–Wed 3:30 AM–11:30 PM · Thu 4 AM–11:30 PM · Fri 3:30 AM–11:30 PM · Sat 5 AM–12:30 PM · Sun 3:30 AM–11:30 PM
    Address
    6512 Olympic Dr, Everett, WA 98203
    View profile for Gp General Corp(425) 344-9635

  13. #13 John's Waterproofing

    Based in Mukilteo, 33 mi away

    50/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Waterproofing service”.

    • 5.0★ from 8 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    12108 Mukilteo Speedway Suite A1&A2, Mukilteo, WA 98275
    View profile for John's Waterproofing(425) 475-1500

  19. #19 Groundworks

    Based in Camano, 37 mi away

    48/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Concrete contractor”.

    • 5.0★ from 15 Google reviews
    Hours
    Mon–Fri 4 AM–8 PM · Sat 5 AM–8 PM · Sun 7 AM–8 PM
    View profile for Groundworks(425) 380-4668

  20. #20 Crawl Pros

    Based in Marysville, 24 mi away

    48/100CR Score

    Ranked #20 because of its Google rating and trade focus: 3.9★ from 11 Google reviews, listed on Google as “Insulation contractor”.

    • 3.9★ from 11 Google reviews
    Hours
    Mon–Sun 8 AM–7 PM
    Address
    3511 136th St NE UNIT A, Marysville, WA 98271
    View profile for Crawl Pros(360) 443-5744

  25. #25 Sound Crawls

    Based in Everett, 30 mi away

    47/100CR Score

    Ranked #25 because of its Google rating and review volume: 5.0★ from 32 Google reviews.

    • 5.0★ from 32 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    2716 McDougall Ave, Everett, WA 98201
    View profile for Sound Crawls(425) 371-4451

All 38 foundation repair companies

#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.

foundation repair companies in Oak Harbor, ranks 26 to 38
RankBusinessCR ScoreGoogle ratingDistance
26Foundation474.8★ (16)35 mi
27Exterior Renovations LLC465.0★ (4)31 mi
28Axiom Division 7464.6★ (33)31 mi
29Sound Waterproofers inc.464.7★ (13)37 mi
30Twelve Stones Construction, Inc465.0★ (13)24 mi
31Pro Deck Ltd464.7★ (32)33 mi
32Hausmeister Home Services Inc454.8★ (26)36 mi
33All-Trax Excavation454.2★ (11)31 mi
34Injectech LLC455.0★ (10)37 mi
35Kandu Enterprise445.0★ (15)36 mi
36Victoria Deck Ltd.444.9★ (14)36 mi
37Precision Concrete445.0★ (8)31 mi
38Alco Buildings Management Services Inc.423.4★ (10)36 mi

Also serving Oak Harbor

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.

Unranked foundation repair companies serving Oak Harbor
BusinessGoogle ratingDistance
B & B Concrete Construction4.0★ (4)In Oak Harbor
Bolton Water Damage Services5.0★ (23)In Oak Harbor
Concrete Experts LLC5.0★ (2)37 mi
Concrete Nor'West / Miles Sand & Gravel19 mi
CRH Engineering, PLLC24 mi
F M Concrete Construction4.0★ (4)In Oak Harbor
FloorTechs NW4.0★ (2)In Oak Harbor
Forefront Construction1.0★ (2)24 mi
Foundation Restoration32 mi
Greenbank Construction5.0★ (2)16 mi
Hodge & Sons LLC4.0★ (1)40 mi
M B Foundations Inc5.0★ (1)5 mi
Perma Dry Waterproofing1.0★ (1)32 mi
Progressive Wallcovering & Painting5.0★ (2)36 mi
R&R Foundation Specialist27 mi
SCC | Concrete Foundations, Flatwork & Design25 mi
Steve's Tile & Stone1.0★ (2)35 mi
Triple C Construction Services LLC.In Oak Harbor
Van Pelt ConstructionIn Oak Harbor
Victoria Waterproofing5.0★ (1)34 mi

How much do foundation repair companies cost in Oak Harbor?

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

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

How we ranked Oak Harbor foundation repair companies

We scored 38 Oak Harbor 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Oak Harbor 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 Oak Harbor: frequently asked questions

Who is the best foundation repair company in Oak Harbor?

By CR Score, the highest-ranked foundation repair company in Oak Harbor, WA is Washington Roofing Services with a CR Score of 57/100. It has 4.9★ from 205 Google reviews. It is open 24/7. Groundworks (#2) and Smokey Point Concrete (#3) follow. We ranked 38 foundation repair companies on ten factors, last updated October 23, 2026.

How many foundation repair companies are there in Oak Harbor?

ContractorsRanked ranks 38 foundation repair companies serving Oak Harbor, WA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.

Which foundation repair companies in Oak Harbor are open 24/7?

4 ranked foundation repair companies in Oak Harbor post 24/7 hours. The highest-ranked are Washington Roofing Services (#1), Rainier Foundation & Waterproofing (#5) and CWS - Canadian Waterproofing Systems (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which foundation repair companies in Oak Harbor work on weekends?

16 of 38 ranked foundation repair companies post Saturday hours and 10 post Sunday hours. The highest-ranked open Saturdays are Washington Roofing Services (#1), Groundworks (#2) and Smokey Point Concrete (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does foundation repair cost in Oak Harbor?

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

What Google rating do Oak Harbor foundation repair companies have?

The median Google rating among 38 rated foundation repair companies in Oak Harbor is 5.0★, with a median of 21 reviews. 1-866-SLABJACK has the most, 380 reviews, and ranks #9. 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 Oak Harbor count in this ranking?

Yes, if they are within 40 mi of the Oak Harbor 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 Oak Harbor

  1. October 2026: CR Scores recalculated for 38 foundation repair companies serving Oak Harbor.

More foundation repair companies and Oak Harbor pages

Other trades in Oak Harbor