49 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Portage: Sir Home Improvements, CR Score 88/100; 4.3★ from 904 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Worthy Construction LLC, posts 24/7 hours; ranked #4 of 49.
Most-reviewed: Advantage Roofing & Exteriors, Inc., 716 Google reviews at 4.9★, the most of 49 ranked after Sir Home Improvements; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
49 Portage window installers are ranked here by CR Score, from 8 published factors. 5 are open 24/7, 26 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.8★ across 49 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sir Home Improvements | 88 | 4.3★ (904) | Portage | Sat · Sun · Evenings | Overall |
| 2 | Advantage Roofing & Exteriors, Inc. | 84 | 4.9★ (716) | Kalamazoo, 9 mi away | — | Most reviews |
| 3 | Glass Doctor of Kalamazoo, MI | 83 | 4.7★ (194) | Kalamazoo, 6 mi away | Sat | — |
| 4 | Worthy Construction LLC | 83 | 4.9★ (63) | Kalamazoo, 5 mi away | 24/7 | Emergencies |
| 5 | Character Exteriors | 82 | 5.0★ (145) | Kalamazoo, 4 mi away | Sat · Sun · Evenings | — |
| 6 | Clear View Glass LLC | 82 | 4.6★ (61) | Three Rivers, 18 mi away | 24/7 | — |
| 7 | 1-800-HANSONS | 82 | 4.2★ (527) | Kalamazoo, 6 mi away | 24/7 | — |
| 8 | Coffman Construction, LLC | 80 | 5.0★ (24) | Kalamazoo, 5 mi away | Sat | — |
| 9 | Lake Michigan Window & Door | 80 | 5.0★ (14) | Portage | Sat · Evenings | — |
| 10 | Why wait handyman service | 80 | 5.0★ (28) | Eastwood, 24 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.3★ from 904 Google reviews, the most Google reviews on this list (904).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 9 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 716 Google reviews, 716 Google reviews.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Kalamazoo, 6 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 194 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 5 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 63 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 4 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 145 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Three Rivers, 18 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 61 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 6 mi away
Ranked #7 because of its Google rating and availability: 4.2★ from 527 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 5 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portage
Ranked #9 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eastwood, 24 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 7 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 7 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 17 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 6 mi away
Ranked #13 because of its Google rating and trade focus: 4.2★ from 59 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portage
Ranked #14 because of its Google rating and trade focus: 4.8★ from 49 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Battle Creek, 20 mi away
Ranked #15 because of its Google rating and trade focus: 4.6★ from 59 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 26 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 133 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 7 mi away
Ranked #17 because of its Google rating and review volume: 4.8★ from 128 Google reviews, 128 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portage
Ranked #18 because of its Google rating and review volume: 4.7★ from 193 Google reviews, 193 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portage
Ranked #19 because of its Google rating and trade focus: 4.2★ from 12 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 7 mi away
Ranked #20 because of its Google rating and review volume: 4.8★ from 212 Google reviews, 212 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Allegan, 25 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 69 Google reviews, 69 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 6 mi away
Ranked #22 because of its Google rating and review volume: 4.9★ from 99 Google reviews, 99 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coldwater, 38 mi away
Ranked #23 because of its Google rating and trade focus: 4.4★ from 20 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coldwater, 35 mi away
Ranked #24 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kalamazoo, 5 mi away
Ranked #25 because of its Google rating and review volume: 4.6★ from 175 Google reviews, 175 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Typical prices in USD, adjusted for Michigan with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,430 | $7,340 | $11,830 | Per project (several windows): typical range of customer-reported projects. US national range × 1.00 East North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 49 Portage 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 Portage 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 |