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Emergency Water Damage Restoration Companies in St. Thomas, ON (2026)

Top 29 of 67 water damage restoration companies, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 29 water damage restoration companies on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

Shut off the water source and the power to wet rooms if it is safe to reach the panel. Photograph damage for your insurer.

The short answer

  1. 1

    #1 for emergency water damage restoration in St. Thomas: London Steam Carpet, Upholstery & Air-Duct Cleaning, open 24/7.

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

Top emergency water damage restoration companies in St. Thomas at a glance

Top emergency water damage restoration companies in St. Thomas at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1London Steam Carpet, Upholstery & Air-Duct Cleaning664.8★ (882)London, 18 km away24/7
2First General London/Middlesex624.7★ (113)London, 18 km away24/7
3FIRST ONSITE Property Restoration624.6★ (96)London, 18 km away24/7
4Pillar Restoration - Property Restoration Experts624.9★ (78)Norfolk County, 22 km away24/7
5Restore, Renovate, Build (formerly Restoration 1 London)614.7★ (60)London, 18 km away24/7
6Paul Davis London614.4★ (113)London, 26 km away24/7
7BELFOR Property Restoration604.0★ (92)London, 18 km away24/7
8ServiceMaster Tillsonburg604.8★ (91)Norfolk County, 38 km away24/7
9Across Canada Restorations604.7★ (34)London, 18 km away24/7
10PuroClean Restoration London604.8★ (24)London, 18 km away24/7

Call an emergency water damage restoration company in St. Thomas now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 29 emergency water damage restoration companies in St. Thomas, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 67 is on the water damage restoration companies page.

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

  6. #6 Paul Davis London

    Based in London, 26 km away

    61/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.4★ from 113 Google reviews, listed on Google as “Water damage restoration service”.

    • 4.4★ from 113 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    562 Sovereign Rd, London, ON N5V 4K6
    View profile for Paul Davis London(519) 685-9595

  13. #13 SERVPRO of London

    Based in London, 18 km away

    58/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.9★ from 12 Google reviews, listed on Google as “Water damage restoration service”.

    • 4.9★ from 12 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    605 Newbold St Unit 1, London, ON N6E 2T7
    View profile for SERVPRO of London(519) 657-6527

  15. #15 Shamas Contracting Inc

    Based in London, 24 km away

    58/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.4★ from 19 Google reviews, listed on Google as “Water damage restoration service”.

    • 4.4★ from 19 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    15 Charterhouse Crescent, London, ON N5W 5V3
    View profile for Shamas Contracting Inc(519) 434-4343

  16. #16 London Extreme Clean

    Based in London, 29 km away

    58/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.5★ from 24 Google reviews, listed on Google as “Water damage restoration service”.

    • 4.5★ from 24 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2-665 Fanshawe Park Rd W Suite 161B, London, ON N6G 5B4
    View profile for London Extreme Clean(226) 289-7473

  21. #21 Johnston Pros

    Based in London, 20 km away

    57/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Water damage restoration service”.

    • 5.0★ from 5 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Johnston Pros(888) 707-6677

Top 29 of 67 water damage restoration companies by emergency score

#1 to #25 are shown in full above. Here are #26 to #29, in CR Score order; each links to its profile.

water damage restoration companies in St. Thomas, ranks 26 to 29
RankBusinessCR ScoreGoogle ratingDistance
26Steam Force Ltd514.4★ (66)24 km
27Palmiye House Cleaning Services434.9★ (105)24 km
28ROYAL RESTORATION EPOXY FLOORS & CONCRETE RESURFACING415.0★ (143)21 km
29New Budget Mould Removal Inc394.8★ (16)27 km

How we ranked emergency water damage restoration companies in St. Thomas

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 water damage restoration companies are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

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 from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency water damage restoration companies in St. Thomas: questions

Which water damage restoration companies in St. Thomas are open 24/7?

25 on this list post 24/7 hours, including London Steam Carpet, Upholstery & Air-Duct Cleaning, First General London/Middlesex, FIRST ONSITE Property Restoration, Pillar Restoration - Property Restoration Experts and Restore, Renovate, Build (formerly Restoration 1 London).

Who is ranked #1 for emergency water damage restoration in St. Thomas, ON?

London Steam Carpet, Upholstery & Air-Duct Cleaning is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency water damage restoration companies in St. Thomas ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 water damage restoration companies are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the water damage restoration company arrives?

Shut off the water source and the power to wet rooms if it is safe to reach the panel. Photograph damage for your insurer.

How many emergency water damage restoration companies here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for St. Thomas

  1. October 2026: CR Scores recalculated for 67 water damage restoration companies serving St. Thomas.
  2. October 2026: 1 duplicate listing merged.

More emergency and water damage restoration pages