46 siding contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in St. Thomas: EaveSafe Gutter Protection, CR Score 62/100; 5.0★ from 175 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): Neighbourhood Eavestrough & Exteriors - London, posts 24/7 hours; ranked #2 of 46.
Most-reviewed: London Eavestrough and Siding, 380 Google reviews at 4.9★, the most of 46 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
46 St. Thomas siding contractors are ranked here by CR Score, from ten published factors. 6 are open 24/7, 20 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 5.0★ across 46 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | EaveSafe Gutter Protection | 62 | 5.0★ (175) | London, 19 km away | Sat | Overall |
| 2 | Neighbourhood Eavestrough & Exteriors - London | 60 | 4.8★ (50) | Lambton Shores, 36 km away | 24/7 | Emergencies |
| 3 | Chris' Trough N Trim Ltd. | 59 | 4.9★ (35) | London, 5 km away | Sat | — |
| 4 | London Eavestrough and Siding | 57 | 4.9★ (380) | London, 22 km away | — | Most reviews |
| 5 | Town & Country Siding And Aluminum | 56 | 4.9★ (71) | Norfolk County, 53 km away | Sat | — |
| 6 | LandSync Construction | 56 | 5.0★ (9) | Aylmer, 30 km away | Sat · Sun · Evenings | — |
| 7 | London Exteriors and Renovations INC | 56 | 5.0★ (8) | London, 15 km away | Sat | — |
| 8 | N | 55 | 5.0★ (7) | Lambton Shores, 31 km away | Sat · Sun | — |
| 9 | Shockwave Roofing | 55 | 5.0★ (96) | London, 25 km away | Sat · Sun | — |
| 10 | Harp Exteriors | 55 | 5.0★ (14) | Lambton Shores, 16 km away | — | — |
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: 5.0★ from 175 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 36 km away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 5 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 22 km away
Ranked #4 because of its Google rating and review volume: 4.9★ from 380 Google reviews, the most in St. Thomas.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 53 km away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aylmer, 30 km away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 15 km away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 31 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 25 km away
Ranked #9 because of its Google rating and review volume: 5.0★ from 96 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 16 km away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 46 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 25 km away
Ranked #12 because of its Google rating and review volume: 4.9★ from 99 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 23 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 16 km away
Ranked #14 because of its Google rating and review volume: 5.0★ from 28 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aylmer, 11 km away
Ranked #15 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 24 km away
Ranked #16 because of its Google rating and review volume: 4.6★ from 19 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 22 km away
Ranked #17 because of its Google rating and review volume: 5.0★ from 65 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 55 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 15 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Gutter Cleaning Service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 18 km away
Ranked #20 because of its Google rating and review volume: 4.6★ from 160 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Thomas
Ranked #21 because of its Google rating and trade focus: 3.2★ from 6 Google reviews, listed on Google as “Window supplier”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Norfolk County, 41 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 53 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Siding contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in London, 25 km away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 7 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 24 km away
Ranked #25 because of its Google rating and availability: 2.7★ from 7 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
US national ranges converted to CAD, not adjusted for St. Thomas. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Siding replacement | CA$7,810 | CA$16,290 | CA$24,910 | Per house: typical range of customer-reported projects. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 46 St. Thomas siding contractors 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.
| Factor | Weight | Computed from | In St. Thomas 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 |