75 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Nanaimo: ProLux Windows & Doors, CR Score 62/100; 5.0★ from 72 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Crown Glass Vancouver, posts 24/7 hours; ranked #4 of 75.
Most-reviewed: Speedy Glass Duncan, 699 Google reviews at 4.9★, the most of 75 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
75 Nanaimo window installers are ranked here by CR Score, from ten published factors. 4 are open 24/7, 33 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.8★ across 75 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ProLux Windows & Doors | 62 | 5.0★ (72) | Nanaimo | Sat · Sun · Evenings | Overall |
| 2 | Ecoline Windows and Doors Nanaimo | 62 | 4.7★ (290) | Nanaimo | Sat | — |
| 3 | Apple Auto Glass Nanaimo | 61 | 4.9★ (221) | Nanaimo | — | — |
| 4 | Crown Glass Vancouver | 60 | 4.9★ (201) | Vancouver, 61 km away | 24/7 | Emergencies |
| 5 | Trust Glass | 59 | 4.9★ (162) | Vancouver, 61 km away | 24/7 | — |
| 6 | Speedy Glass Nanaimo North | 59 | 4.8★ (133) | Nanaimo | — | — |
| 7 | Brownlow and Sons Contracting | 59 | 4.9★ (54) | Ladysmith, 23 km away | Sat · Sun · Evenings | — |
| 8 | Excellence Auto Glass Richmond | 59 | 4.8★ (172) | Richmond, 61 km away | 24/7 | — |
| 9 | Centra Windows & Install Pros Nanaimo | 59 | 4.6★ (169) | Nanaimo | — | — |
| 10 | Speedy Glass Duncan | 58 | 4.9★ (699) | Duncan, 48 km away | — | Most reviews |
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 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #2 because of its Google rating and trade focus: 4.7★ from 290 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #3 because of its Google rating and trade focus: 4.9★ from 221 Google reviews, listed on Google as “Window installation service”.
Based in Vancouver, 61 km away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 201 Google reviews, listed on Google as “Window installation service”.
Based in Vancouver, 61 km away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 162 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #6 because of its Google rating and trade focus: 4.8★ from 133 Google reviews, listed on Google as “Window installation service”.
Based in Ladysmith, 23 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Window installation service”.
Based in Richmond, 61 km away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 172 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #9 because of its Google rating and trade focus: 4.6★ from 169 Google reviews, listed on Google as “Window installation service”.
Based in Duncan, 48 km away
Ranked #10 because of its Google rating and review volume: 4.9★ from 699 Google reviews, the most in Nanaimo.
Based in Nanaimo
Ranked #11 because of its Google rating and trade focus: 4.5★ from 134 Google reviews, listed on Google as “Window installation service”.
Based in Vancouver, 64 km away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 398 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #13 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #14 because of its Google rating and trade focus: 4.9★ from 37 Google reviews, listed on Google as “Window cleaning service”.
Based in Sooke, 9 km away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 28 Google reviews, listed on Google as “Window installation service”.
Based in Vancouver, 61 km away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #17 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Window installation service”.
Based in Gibsons, 40 km away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 246 Google reviews, listed on Google as “Window installation service”.
Based in Vancouver, 64 km away
Ranked #19 because of its Google rating and review volume: 5.0★ from 477 Google reviews.
Based in Salt Spring Island, 31 km away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 55 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #21 because of its Google rating and trade focus: 4.4★ from 48 Google reviews, listed on Google as “Window installation service”.
Based in Richmond, 61 km away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 498 Google reviews, listed on Google as “Window installation service”.
Based in Nanaimo
Ranked #23 because of its Google rating and trade focus: 4.7★ from 27 Google reviews, listed on Google as “Window installation service”.
Based in Campbell River, 37 km away
Ranked #24 because of its Google rating and review volume: 4.9★ from 262 Google reviews.
Based in North Vancouver, 63 km away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 145 Google reviews, listed on Google as “Window installation service”.
#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 75 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 |
|---|---|---|
| Alair Homes Nanaimo | 4.9★ (36) | In Nanaimo |
| B. Gallant Homes Ltd. | 4.5★ (37) | In Nanaimo |
| B&B Exteriors | 5.0★ (34) | In Nanaimo |
| Belbin Shine Exterior Cleaning Nanaimo | 5.0★ (111) | In Nanaimo |
| Ideal Siding Nanaimo | 4.7★ (11) | In Nanaimo |
| Islanders Outdoor - Lawn Care Nanaimo | 4.9★ (23) | In Nanaimo |
| Kangaroo Contracting Inc. | 4.8★ (59) | In Nanaimo |
| Major League Property Development Specialists Ltd | 4.9★ (141) | In Nanaimo |
| Michaud Construction Group Inc. | 5.0★ (26) | In Nanaimo |
| Milani Plumbing, Heating & Air Conditioning | 4.9★ (233) | In Nanaimo |
| Paramount Exteriors ltd. | 5.0★ (19) | In Nanaimo |
| Pheasant Hill Homes Ltd | 4.5★ (11) | In Nanaimo |
| Phoenix Siding Ltd | 4.9★ (41) | In Nanaimo |
| Ravenwood Exteriors Ltd. | 4.2★ (18) | In Nanaimo |
| Rhino Exteriors Ltd. | 4.6★ (9) | In Nanaimo |
| SHACK SHINE Nanaimo | 4.9★ (121) | In Nanaimo |
| Sturdy Home Repair Ltd. | 5.0★ (71) | In Nanaimo |
| Tom the Gutterman | 4.3★ (24) | In Nanaimo |
| VE Exterior Property Services | 4.9★ (66) | In Nanaimo |
| VI Grime Fighters | 5.0★ (7) | In Nanaimo |
US national ranges converted to CAD, not adjusted for Nanaimo. 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 75 Nanaimo 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 Nanaimo 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 |