91 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Clarence-Rockland: Verdun Windows and Doors, CR Score 59/100; 4.6★ from 1,986 Google reviews.
Best for emergencies (open 24/7): Performance Window Cleaning, posts 24/7 hours; ranked #2 of 91.
Most-reviewed: Clear Ottawa Windows, 717 Google reviews at 4.9★, the most of 91 ranked after Verdun Windows and Doors; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
91 Clarence-Rockland window installers are ranked here by CR Score, from ten published factors. 4 are open 24/7, 31 open Saturdays and 15 open Sundays, based on posted hours. The median Google rating is 4.9★ across 91 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Verdun Windows and Doors | 59 | 4.6★ (1,986) | Ottawa, 25 km away | — | Overall |
| 2 | Performance Window Cleaning | 59 | 4.9★ (364) | Ottawa, 30 km away | 24/7 | Emergencies |
| 3 | FENHAB Solutions Inc. | 58 | 5.0★ (46) | Clarence-Rockland | Sat | — |
| 4 | Centennial Glass | 57 | 4.6★ (340) | Ottawa, 31 km away | Sat | — |
| 5 | KORAL Windows and Doors Ottawa Installation | 57 | 4.8★ (86) | Clarence-Rockland | — | — |
| 6 | EcoTech Windows & Doors - Ottawa | 57 | 4.9★ (137) | Ottawa, 35 km away | Sat · Evenings | — |
| 7 | Buildmart Windows & Doors Installation Ottawa | 56 | 4.9★ (204) | Ottawa, 30 km away | — | — |
| 8 | Fenplast - Fenex Windows and doors | 56 | 4.8★ (151) | Ottawa, 22 km away | — | — |
| 9 | Level Up Windows & Doors | 56 | 5.0★ (10) | Clarence-Rockland | — | — |
| 10 | Speedy Glass Orleans | 56 | 4.6★ (196) | Ottawa, 20 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 review volume: 4.6★ from 1,986 Google reviews, the most in Clarence-Rockland.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 30 km away
Ranked #2 because of its Google rating and review volume: 4.9★ from 364 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarence-Rockland
Ranked #3 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 31 km away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 340 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarence-Rockland
Ranked #5 because of its Google rating and trade focus: 4.8★ from 86 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 35 km away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 137 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 30 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 204 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 22 km away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 151 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarence-Rockland
Ranked #9 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Window installation service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Ottawa, 20 km away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 196 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 41 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 172 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nepean, 41 km away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 469 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarence-Rockland
Ranked #13 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Window cleaning service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nepean, 48 km away
Ranked #14 because of its Google rating and review volume: 4.9★ from 402 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 42 km away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 399 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 32 km away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 131 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 55 km away
Ranked #17 because of its Google rating and review volume: 5.0★ from 329 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 30 km away
Ranked #18 because of its Google rating and review volume: 4.9★ from 717 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clarence-Rockland
Ranked #19 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Kanata, 59 km away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 42 km away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 131 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nepean, 41 km away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 44 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 40 km away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 264 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 30 km away
Ranked #24 because of its Google rating and trade focus: 4.4★ from 252 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ottawa, 42 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Window installation service”.
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 91 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 |
|---|---|---|
| Big City Replacement Windows Ottawa | 5.0★ (1) | 46 km |
| ByTown Window Restoration | 35 km | |
| Kooltech Mechanical | 4.8★ (202) | In Clarence-Rockland |
| Makinde Windows and Doors Repairs | 5.0★ (2) | 34 km |
| OpenPane | 31 km | |
| Pagi Construction | 5.0★ (1) | In Clarence-Rockland |
| Phoenix Renovation, Restoration & Design | 5.0★ (1) | In Clarence-Rockland |
| PMG Construction Inc | 5.0★ (8) | In Clarence-Rockland |
| Pro Desk at RONA | In Clarence-Rockland | |
| Pro Desk at RONA | 52 km | |
| Pro Desk at RONA+ | 5.0★ (1) | 20 km |
| Quality Windows & Glass Ltd | 5.0★ (1) | In Clarence-Rockland |
| San Bruno Group | 5.0★ (1) | 42 km |
| Sidingworks | In Clarence-Rockland | |
| Stark Windows & Doors | 1.0★ (1) | 43 km |
| Ted Budz Installation Inc. | 37 km | |
| The Time 2 Shine Window Cleaning | 43 km | |
| Vaillancourt Exteriors Inc | 5.0★ (2) | In Clarence-Rockland |
| Window Mart Ottawa | 31 km | |
| Y. Rocque Construction Inc. | 4.3★ (4) | In Clarence-Rockland |
US national ranges converted to CAD, not adjusted for Clarence-Rockland. 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 91 Clarence-Rockland 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 Clarence-Rockland 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 |