11 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Cornwall: RAYJANS Windows and Doors, CR Score 58/100; 4.8★ from 128 Google reviews.
Best for emergencies (open 24/7): Phil's Reno and Roofing, posts 24/7 hours; ranked #3 of 11.
Most-reviewed: Verdun Windows and Doors, 1,986 Google reviews at 4.6★, the most of 11 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
11 Cornwall window installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.8★ across 11 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | RAYJANS Windows and Doors | 58 | 4.8★ (128) | Cornwall | — | Overall |
| 2 | Verdun Windows and Doors | 55 | 4.6★ (1,986) | Ottawa, 60 km away | — | Most reviews |
| 3 | Phil's Reno and Roofing | 55 | 4.8★ (71) | Cornwall | 24/7 | Emergencies |
| 4 | Speedy Glass Cornwall | 55 | 4.4★ (91) | Cornwall | — | — |
| 5 | Guha Services - Window Cleaning, Painting | 51 | 5.0★ (8) | Cornwall | — | — |
| 6 | Fresh Vues Window Cleaning | 50 | 5.0★ (35) | Hawkesbury, 53 km away | Sat · Sun · Evenings | — |
| 7 | Superior Glass Sales | 50 | 4.6★ (27) | Malone, 39 km away | — | — |
| 8 | Beautified Creations Construction and Restoration | 49 | 5.0★ (25) | Cornwall | — | — |
| 9 | Colton Glass Mirror, Inc. | 48 | 4.9★ (11) | Canton, 56 km away | — | — |
| 10 | William Roach Roofing | 48 | 4.6★ (20) | Cornwall | — | — |
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: 4.8★ from 128 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 60 km away
Ranked #2 because of its Google rating and review volume: 4.6★ from 1,986 Google reviews, the most in Cornwall.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #3 because of its Google rating and review volume: 4.8★ from 71 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #4 because of its Google rating and trade focus: 4.4★ from 91 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #5 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Painter”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Hawkesbury, 53 km away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Window cleaning service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Malone, 39 km away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 27 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #8 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Canton, 56 km away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 11 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #10 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Queenswood Heights, 59 km away
Ranked #11 because of its Google rating and trade focus: 1.0★ from 4 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
2 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 |
|---|---|---|
| Northern Shore Window & Door | 16 km | |
| Phoenix Renovation, Restoration & Design | 5.0★ (1) | 58 km |
US national ranges converted to CAD, not adjusted for Cornwall. 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 11 Cornwall window installers 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 Cornwall 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 |