111 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in St. Thomas: Spray-Net London, CR Score 62/100; 4.7★ from 68 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): PMD Excavation Construction, posts 24/7 hours; ranked #2 of 111.
Most-reviewed: ABA Construction, 121 Google reviews at 4.6★, the most of 111 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
111 St. Thomas general contractors are ranked here by CR Score, from ten published factors. 11 are open 24/7, 53 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 5.0★ across 111 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Spray-Net London | 62 | 4.7★ (68) | London, 10 km away | Sat · Sun · Evenings | Overall |
| 2 | PMD Excavation Construction | 62 | 5.0★ (46) | St. Thomas | 24/7 | Emergencies |
| 3 | Diamond V.S Construction Ltd | 61 | 5.0★ (35) | London, 21 km away | 24/7 | — |
| 4 | On the mark carpentry service | 61 | 5.0★ (15) | St. Thomas | Sat · Sun · Evenings | — |
| 5 | ABA Construction | 60 | 4.6★ (121) | London, 23 km away | Sat | Most reviews |
| 6 | Tradecy Inc. | 60 | 4.8★ (24) | Lambton Shores, 22 km away | 24/7 | — |
| 7 | Renovations Without Borders | 59 | 4.9★ (15) | London, 20 km away | 24/7 | — |
| 8 | Augustine Construction | 59 | 4.9★ (24) | London, 31 km away | 24/7 | — |
| 9 | Ferrer Texture Ceilings | 59 | 4.8★ (19) | London, 26 km away | 24/7 | — |
| 10 | DDS Home Services | 59 | 4.8★ (48) | London, 20 km away | Sat | — |
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: 4.7★ from 68 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Thomas
Ranked #2 because of its Google rating and review volume: 5.0★ from 46 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 21 km away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Thomas
Ranked #4 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 23 km away
Ranked #5 because of its Google rating and review volume: 4.6★ from 121 Google reviews, the most in St. Thomas.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 22 km away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 31 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 24 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 26 km away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Thomas
Ranked #11 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 27 km away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 24 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aylmer, 16 km away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 28 Google reviews, listed on Google as “Contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in London, 28 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 23 km away
Ranked #16 because of its Google rating and trade focus: 4.6★ from 57 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 20 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 23 km away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 18 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 24 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Thomas
Ranked #20 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “General contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in St. Thomas
Ranked #21 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Thomas
Ranked #22 because of its Google rating and trade focus: 4.9★ from 8 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 24 km away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 23 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 29 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 111 ranked general contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Sesmaval Construction Group Inc | 57 | 5.0★ (14) | 24 km |
| 27 | O'Reilly Built | 57 | 5.0★ (13) | In St. Thomas |
| 28 | Western Renovations | 57 | 5.0★ (10) | 20 km |
| 29 | JS Construction & General Contracting | 56 | 4.9★ (9) | 20 km |
| 30 | Apeiro Construction | 56 | 5.0★ (16) | 19 km |
| 31 | Riverside Construction | 56 | 4.9★ (47) | 27 km |
| 32 | Dynasty Contracting | 56 | 5.0★ (8) | 20 km |
| 33 | Neudorf Contracting | 56 | 5.0★ (17) | 23 km |
| 34 | Cedar Ridge Construction | 56 | 5.0★ (4) | In St. Thomas |
| 35 | MP Custom Homes | 56 | 4.1★ (16) | In St. Thomas |
| 36 | Cohen Construction | 56 | 5.0★ (14) | 20 km |
| 37 | Premier Renovations | 56 | 5.0★ (5) | 25 km |
| 38 | Golden Vision Renovation | 55 | 5.0★ (7) | 22 km |
| 39 | SouthWest Exteriors Canada | 55 | 5.0★ (17) | 38 km |
| 40 | SWO General Contracting | 55 | 4.4★ (24) | 26 km |
| 41 | Deckorated Living Inc. | 55 | 5.0★ (13) | 24 km |
| 42 | CHIZLD Design & Construction | 55 | 4.9★ (20) | 19 km |
| 43 | Haycon Construction | 55 | 4.0★ (4) | 24 km |
| 44 | Milestone Contracting & Home Improvement | 54 | 5.0★ (20) | 36 km |
| 45 | Tonda Construction | 54 | 4.4★ (7) | 17 km |
| 46 | Grand Royal Construction | 54 | 4.8★ (5) | 23 km |
| 47 | Core Builders | 54 | 5.0★ (7) | 22 km |
| 48 | RRP Construction | 54 | 3.7★ (3) | 26 km |
| 49 | D3 RENOVATIONS | 54 | 5.0★ (6) | 21 km |
| 50 | B.W. Conn Homes Ltd | 52 | 4.9★ (9) | 37 km |
20 more general contractors within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
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 |
|---|---|---|---|---|---|
| Kitchen remodel | CA$20,510 | CA$37,930 | CA$58,490 | Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Bathroom remodel | CA$9,350 | CA$17,080 | CA$24,820 | Per bathroom: typical range of customer-reported remodels. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 111 St. Thomas general 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 |