240 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Welland: 4wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors, CR Score 87/100; 5.0★ from 64 Google reviews; open 24/7.
Best for emergencies (open 24/7): The Window Source of WNY, posts 24/7 hours; ranked #2 of 240.
Most-reviewed: Renewal By Andersen of Western New York, 1,066 Google reviews at 4.8★, the most of 240 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
240 Welland window installers are ranked here by CR Score, from 8 published factors. 27 are open 24/7, 118 open Saturdays and 58 open Sundays, based on posted hours. The median Google rating is 4.9★ across 240 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | 4wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors | 87 | 5.0★ (64) | Welland | 24/7 | Overall |
| 2 | The Window Source of WNY | 86 | 4.9★ (53) | Buffalo, 35 km away | 24/7 | Emergencies |
| 3 | Paramount Windows & Doors | 86 | 4.9★ (95) | Buffalo, 49 km away | 24/7 | — |
| 4 | Sunspace by Aztec Enclosures Inc. | 86 | 4.9★ (40) | Welland | — | — |
| 5 | Wonder Windows Buffalo | 86 | 4.5★ (208) | Buffalo, 43 km away | 24/7 | — |
| 6 | MasterShine Window & Eaves Cleaning Niagara | 85 | 5.0★ (243) | Thorold, 14 km away | Sat · Sun | — |
| 7 | Braymiller Builders of WNY Inc. | 85 | 4.9★ (1,065) | Hamburg, 44 km away | Sat | — |
| 8 | Ontario Window Care - Window Cleaning & Exterior Services | 85 | 5.0★ (65) | St. Catharines, 22 km away | 24/7 | — |
| 9 | Myles Calvert & Son Windows and Doors | 85 | 5.0★ (105) | Norfolk County, 6 km away | Sat | — |
| 10 | William C Rott & Son Inc | 84 | 4.2★ (120) | Tonawanda, 31 km away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Welland
Based in Welland
Ranked #1 because of its Google rating and availability: 5.0★ from 64 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buffalo, 35 km away
Ranked #2 because of its Google rating and availability: 4.9★ from 53 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buffalo, 49 km away
Ranked #3 because of its Google rating and availability: 4.9★ from 95 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Welland
Ranked #4 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Buffalo, 43 km away
Ranked #5 because of its Google rating and availability: 4.5★ from 208 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Thorold, 14 km away
Ranked #6 because of its Google rating and review volume: 5.0★ from 243 Google reviews, 243 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hamburg, 44 km away
Ranked #7 because of its Google rating and review volume: 4.9★ from 1,065 Google reviews, 1,065 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in St. Catharines, 22 km away
Ranked #8 because of its Google rating and availability: 5.0★ from 65 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Norfolk County, 6 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 105 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Tonawanda, 31 km away
Ranked #10 because of its Google rating and availability: 4.2★ from 120 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oakville, 60 km away
Ranked #11 because of its Google rating and availability: 5.0★ from 39 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Welland
Ranked #12 because of its Google rating and trade focus: 5.0★ from 280 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Niagara Falls, 17 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Depew, 43 km away
Ranked #14 because of its Google rating and review volume: 4.8★ from 1,066 Google reviews, the most Google reviews on this list (1,066).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buffalo, 34 km away
Ranked #15 because of its Google rating and availability: 5.0★ from 177 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hamilton, 48 km away
Ranked #16 because of its Google rating and review volume: 5.0★ from 404 Google reviews, 404 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in St. Catharines, 25 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 617 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in St. Catharines, 19 km away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 155 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buffalo, 31 km away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 318 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hamilton, 51 km away
Ranked #20 because of its Google rating and trade focus: 4.5★ from 378 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Niagara Falls, 19 km away
Ranked #21 because of its Google rating and availability: 5.0★ from 79 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in St. Catharines, 20 km away
Ranked #22 because of its Google rating and availability: 4.7★ from 28 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Williamsville, 45 km away
Ranked #23 because of its Google rating and availability: 4.7★ from 494 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Welland
Ranked #24 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Burlington, 62 km away
Ranked #25 because of its Google rating and review volume: 5.0★ from 420 Google reviews, 420 Google reviews.
Based on 6 of 8 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 240 ranked window installers here; the rest are on their profiles.
20 more window installers within 64 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| 4wards Exteriors Inc | 5.0★ (2) | 53 km |
| 4wards Exteriors Inc | Siding, Eavestrough & Roofing | Windows & Doors | 5.0★ (2) | 8 km |
| Albright Construction | 5.0★ (2) | 56 km |
| Bingley Windows Siding & Roofing | 3.0★ (2) | 15 km |
| Boardman Renovations | In Welland | |
| Bucalu Windows & Doors Oakville | 5.0★ (2) | 62 km |
| Chase Cabinetry | 4.9★ (49) | In Welland |
| Cowboy Construction LLC | 5.0★ (2) | 45 km |
| Devine's Complete Home Improvement | 3.0★ (2) | 28 km |
| Finkas Construction Services | 1.0★ (2) | 30 km |
| Four Seasons Sunrooms | 4.5★ (2) | 45 km |
| Laurent Viger Construction Ltd | 5.0★ (2) | In Welland |
| Modern Windows | 3.0★ (2) | 21 km |
| PDQ Quality Home Improvements | 4.5★ (2) | 38 km |
| Pro Desk at RONA | 4.5★ (2) | In Welland |
| Pro Desk at RONA+ | 5.0★ (2) | 14 km |
| Remodel WNY | 5.0★ (2) | 40 km |
| Sleeth Siding and Windows | 5.0★ (2) | 27 km |
| Top Roof | 5.0★ (2) | 63 km |
| Valiant Renovators | 5.0★ (2) | 36 km |
US national ranges converted to CAD, not adjusted for Welland. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | CA$4,830 | CA$10,330 | CA$16,640 | Per project (several windows): 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 240 Welland window installers on 8 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. Unknown factors are left out of the score, 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 Welland data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |