200 siding contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Port Colborne: 4wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors, CR Score 62/100; 5.0★ from 64 Google reviews; open 24/7.
Best for emergencies (open 24/7): Junior Exteriors, posts 24/7 hours; ranked #2 of 200.
Most-reviewed: Gerry's Roofing & Siding Inc, 766 Google reviews at 4.8★, the most of 200 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
200 Port Colborne siding contractors are ranked here by CR Score, from ten published factors. 34 are open 24/7, 110 open Saturdays and 56 open Sundays, based on posted hours. The median Google rating is 4.8★ across 200 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | 4wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors | 62 | 5.0★ (64) | Welland, 11 km away | 24/7 | Overall |
| 2 | Junior Exteriors | 61 | 5.0★ (94) | North Tonawanda, 36 km away | 24/7 | Emergencies |
| 3 | HomeTeck Roofing & Remodeling | 58 | 4.9★ (160) | Lancaster, 53 km away | Sat · Sun · Evenings | — |
| 4 | 4wards Exteriors Inc | Siding, Eavestrough & Roofing | Windows & Doors | 58 | 4.7★ (28) | St. Catharines, 29 km away | 24/7 | — |
| 5 | Doug's Roofing & Construction | 58 | 4.7★ (20) | Norfolk County, 9 km away | Sat · Sun | — |
| 6 | Exterior Xperts | 57 | 5.0★ (57) | St. Catharines, 26 km away | Sat | — |
| 7 | Ideal Siding Niagara | 57 | 5.0★ (40) | Hamilton, 17 km away | Sat | — |
| 8 | Ace 1 Quality Roofing Siding & Eavestroughs / Niagara | 57 | 5.0★ (104) | Niagara Falls, 23 km away | Sat · Sun · Evenings | — |
| 9 | Envirotech Exteriors inc. | 57 | 4.7★ (39) | Burlington, 49 km away | 24/7 | — |
| 10 | R&S Contracting LTD | 57 | 5.0★ (20) | Welland, 5 km away | Sat | — |
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.
Ranked #1 in Port Colborne
Based in Welland, 11 km away
Ranked #1 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Siding contractor”.
Based in North Tonawanda, 36 km away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “Siding contractor”.
Based in Lancaster, 53 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “Siding contractor”.
Based in St. Catharines, 29 km away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Siding contractor”.
Based in Norfolk County, 9 km away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 20 Google reviews, listed on Google as “Siding contractor”.
Based in St. Catharines, 26 km away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Siding contractor”.
Based in Hamilton, 17 km away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Siding contractor”.
Based in Niagara Falls, 23 km away
Ranked #8 because of its Google rating and review volume: 5.0★ from 104 Google reviews.
Based in Burlington, 49 km away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 39 Google reviews, listed on Google as “Siding contractor”.
Based in Welland, 5 km away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Siding contractor”.
Based in Hamilton, 59 km away
Ranked #11 because of its Google rating and review volume: 4.8★ from 766 Google reviews, the most in Port Colborne.
Based in Buffalo, 32 km away
Ranked #12 because of its Google rating and review volume: 5.0★ from 177 Google reviews.
Based in Buffalo, 37 km away
Ranked #13 because of its Google rating and review volume: 4.9★ from 268 Google reviews.
Based in Fort Erie, 21 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Siding contractor”.
Based in Buffalo, 29 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Siding contractor”.
Based in West Seneca, 38 km away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 65 Google reviews, listed on Google as “Siding contractor”.
Based in Williamsville, 45 km away
Ranked #17 because of its Google rating and review volume: 4.8★ from 379 Google reviews.
Based in Williamsville, 44 km away
Ranked #18 because of its Google rating and review volume: 4.7★ from 494 Google reviews.
Based in Hamilton, 53 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Siding contractor”.
Based in St. Catharines, 34 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Siding contractor”.
Based in Buffalo, 36 km away
Ranked #21 because of its Google rating and review volume: 4.9★ from 116 Google reviews.
Based in Lancaster, 46 km away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 219 Google reviews, listed on Google as “Siding contractor”.
Based in St. Catharines, 32 km away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 17 Google reviews, listed on Google as “Siding contractor”.
Based in Niagara Falls, 24 km away
Ranked #24 because of its Google rating and review volume: 5.0★ from 79 Google reviews.
Based in Buffalo, 34 km away
Ranked #25 because of its Google rating and trade focus: 3.9★ from 15 Google reviews, listed on Google as “Siding contractor”.
#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 200 ranked siding contractors here; the rest are on their profiles.
20 more siding contractors within 64 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 Port Colborne. 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 200 Port Colborne 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 Port Colborne 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 |