Ranked #1 because of its Google rating and availability: 4.9★ from 364 Google reviews, open 24/7.
- 4.9★ from 364 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 532 Montréal Rd Suite 255, Ottawa, ON K1K 4R4
94 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Nepean: Performance Window Cleaning, CR Score 88/100; 4.9★ from 364 Google reviews; open 24/7.
Best for emergencies (open 24/7): Capital Door Tech, posts 24/7 hours; ranked #5 of 94.
Most-reviewed: Verdun Windows and Doors, 1,986 Google reviews at 4.6★, the most of 94 ranked; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
94 Nepean window installers are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 30 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.9★ across 94 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Performance Window Cleaning | 88 | 4.9★ (364) | Ottawa, 13 km away | 24/7 | Overall |
| 2 | Ottawa Student Windows | 86 | 4.9★ (402) | Nepean | Sat · Sun · Evenings | — |
| 3 | WindowGuru Window Cleaning | 85 | 5.0★ (329) | Ottawa, 14 km away | Sat · Sun · Evenings | — |
| 4 | North Design Windows | 84 | 4.9★ (61) | Kanata, 18 km away | Sat · Sun | — |
| 5 | Capital Door Tech | 84 | 5.0★ (4) | Ottawa, 4 km away | 24/7 | Emergencies |
| 6 | EcoTech Windows & Doors - Ottawa | 84 | 4.9★ (137) | Ottawa, 10 km away | Sat · Evenings | — |
| 7 | Centennial Glass | 82 | 4.6★ (340) | Ottawa, 11 km away | Sat | — |
| 8 | Advanced View Windows and Doors Inc. | 82 | 5.0★ (172) | Ottawa, 1 km away | — | — |
| 9 | AK Windows | 82 | 4.8★ (44) | Nepean | Sat · Evenings | — |
| 10 | Verdun Windows and Doors | 81 | 4.7★ (469) | Nepean | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and availability: 4.9★ from 364 Google reviews, open 24/7.
Based in Nepean
Ranked #2 because of its Google rating and review volume: 4.9★ from 402 Google reviews, 402 Google reviews.
Based in Ottawa, 14 km away
Ranked #3 because of its Google rating and review volume: 5.0★ from 329 Google reviews, 329 Google reviews.
Based in Kanata, 18 km away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 4 km away
Ranked #5 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based in Ottawa, 10 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 in Ottawa, 11 km away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 340 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 1 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 172 Google reviews, listed on Google as “Window installation service”.
Based in Nepean
Ranked #9 because of its Google rating and trade focus: 4.8★ from 44 Google reviews, listed on Google as “Window installation service”.
Based in Nepean
Ranked #10 because of its Google rating and trade focus: 4.7★ from 469 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 2 km away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 399 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 5 km away
Ranked #12 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based in Kanata, 11 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 1 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Window installation service”.
Based in Nepean
Ranked #15 because of its Google rating and trade focus: 3.7★ from 370 Google reviews, listed on Google as “Window installation service”.
Based in Nepean
Ranked #16 because of its Google rating and trade focus: 4.8★ from 132 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 29 km away
Ranked #17 because of its Google rating and review volume: 4.6★ from 1,986 Google reviews, the most Google reviews on this list (1,986).
Based in Ottawa, 8 km away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Window installation service”.
Based in Nepean
Ranked #19 because of its Google rating and trade focus: 5.0★ from 73 Google reviews, listed on Google as “Gutter Cleaning Service”.
Based in Ottawa, 12 km away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 204 Google reviews, listed on Google as “Window installation service”.
Based in Ottawa, 1 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 in Clarence-Rockland, 24 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Window installation service”.
Based in Nepean
Ranked #23 because of its Google rating and trade focus: 4.8★ from 154 Google reviews, listed on Google as “Window installation service”.
Based in Clarence-Rockland, 17 km away
Ranked #24 because of its Google rating and availability: 4.9★ from 34 Google reviews, open 7 days a week.
Based in Nepean
Ranked #25 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 7 days a week.
US national ranges converted to CAD, not adjusted for Nepean. 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 94 Nepean 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 Nepean 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 |