20 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Orono: Renewal by Andersen of Greater Maine, CR Score 83/100; 4.8★ from 546 Google reviews.
Best for emergencies (open 24/7): Campbell's Custom Carpentry LLC., posts 24/7 hours; ranked #8 of 20.
Most-reviewed: Portland Glass of Ellsworth, 175 Google reviews at 4.8★, the most of 20 ranked after Renewal by Andersen of Greater Maine; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
20 Orono window installers are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 9 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.8★ across 20 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Renewal by Andersen of Greater Maine | 83 | 4.8★ (546) | Bangor, 10 mi away | — | Overall |
| 2 | Ardent Auto Glass | 82 | 5.0★ (9) | Brewer, 5 mi away | Sat · Sun | — |
| 3 | Mcguire Brothers Carpentry | 81 | 5.0★ (13) | Orono | Sat | — |
| 4 | Sunrise Glass Co | 80 | 4.9★ (94) | Brewer, 8 mi away | — | — |
| 5 | Robertson Glass Co | 79 | 4.9★ (54) | Brewer, 5 mi away | — | — |
| 6 | Portland Glass of Ellsworth | 78 | 4.8★ (175) | Ellsworth, 29 mi away | — | Most reviews |
| 7 | Diamond Window Cleaning | 76 | 4.6★ (30) | Brewer, 8 mi away | Sat | — |
| 8 | Campbell's Custom Carpentry LLC. | 76 | 4.6★ (11) | Auburn, 26 mi away | 24/7 | Emergencies |
| 9 | Sunrise Glass Co | 76 | 4.6★ (108) | Ellsworth, 25 mi away | — | — |
| 10 | Acadia Craftsman | 76 | 5.0★ (15) | Ellsworth, 35 mi away | Sat | — |
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 review volume: 4.8★ from 546 Google reviews, the most Google reviews on this list (546).
Based in Brewer, 5 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Window installation service”.
Based in Orono
Ranked #3 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Window installation service”.
Based in Brewer, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Window installation service”.
Based in Brewer, 5 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Window installation service”.
Based in Ellsworth, 29 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 175 Google reviews, listed on Google as “Window installation service”.
Based in Brewer, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 30 Google reviews, listed on Google as “Gutter cleaning service”.
Based in Auburn, 26 mi away
Ranked #8 because of its Google rating and availability: 4.6★ from 11 Google reviews, open 24/7.
Based in Ellsworth, 25 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 108 Google reviews, listed on Google as “Window installation service”.
Based in Ellsworth, 35 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Window installation service”.
Based in Belfast, 36 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 67 Google reviews, listed on Google as “Window installation service”.
Based in Augusta, 26 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 20 Google reviews, listed on Google as “Window installation service”.
Based in Winslow, 17 mi away
Ranked #13 because of its Google rating and availability: 4.2★ from 5 Google reviews, open 7 days a week.
Based in Bangor, 8 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 4 Google reviews, open Saturdays until 6 PM.
Based in Belfast, 38 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “General contractor”.
Based in Brewer, 26 mi away
Ranked #16 because of its Google rating and availability: 3.7★ from 3 Google reviews, open 7 days a week.
Based in Bangor, 16 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Roofing contractor”.
Based in Auburn, 26 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Roofing contractor”.
Based in Ellsworth, 29 mi away
Ranked #19 because of its Google rating and trade focus: 4.5★ from 19 Google reviews, listed on Google as “Roofing contractor”.
Based in Brewer, 29 mi away
Ranked #20 because of its Google rating and trade focus: 4.5★ from 4 Google reviews, listed on Google as “Roofing contractor”.
Typical prices in USD, adjusted for Maine with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,410 | $7,300 | $11,760 | Per project (several windows): typical range of customer-reported projects. US national range × 0.99 New England factor (2025 Cost vs. Value Report) | October 2026 |
We scored 20 Orono 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 Orono 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 |