27 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Monmouth: Midwest Window Company, CR Score 80/100; 5.0★ from 174 Google reviews; open Saturdays until 2 PM.
Most-reviewed: Mainstream Home Improvement, 336 Google reviews at 4.9★, the most of 27 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
27 Monmouth window installers are ranked here by CR Score, from 8 published factors. 11 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.5★ across 27 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Midwest Window Company | 80 | 5.0★ (174) | Moline, 39 mi away | Sat · Evenings | Overall |
| 2 | Glass Specialty WLC, Inc | 78 | 4.8★ (78) | Galesburg, 15 mi away | — | — |
| 3 | Mainstream Home Improvement | 76 | 4.9★ (336) | Moline, 39 mi away | Sat · Evenings | Most reviews |
| 4 | The Acri Company | 76 | 4.3★ (286) | Milan, 38 mi away | Sat | — |
| 5 | First Glass, Inc. | 75 | 4.7★ (34) | Galesburg, 15 mi away | — | — |
| 6 | QCGeneral Inc | 73 | 4.5★ (44) | Milan, 35 mi away | Sat · Sun · Evenings | — |
| 7 | JB&D Siding & Window | 72 | 4.5★ (54) | Galesburg, 15 mi away | — | — |
| 8 | The Window Source of Southeast Iowa | 72 | 5.0★ (12) | Burlington, 27 mi away | — | — |
| 9 | Defiant Construction & Maintenance LLC | 71 | 5.0★ (4) | Macomb, 30 mi away | Sat | — |
| 10 | Garrett's Glass Repair & Window Installation - Galesburg / Knoxville | 71 | 3.0★ (4) | Galesburg, 19 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 trade focus: 5.0★ from 174 Google reviews, listed on Google as “Window installation service”.
Based in Galesburg, 15 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 78 Google reviews, listed on Google as “Window installation service”.
Based in Moline, 39 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 336 Google reviews, the most Google reviews on this list (336).
Based in Milan, 38 mi away
Ranked #4 because of its Google rating and trade focus: 4.3★ from 286 Google reviews, listed on Google as “Window installation service”.
Based in Galesburg, 15 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 34 Google reviews, listed on Google as “Window installation service”.
Based in Milan, 35 mi away
Ranked #6 because of its Google rating and availability: 4.5★ from 44 Google reviews, open 7 days a week.
Based in Galesburg, 15 mi away
Ranked #7 because of its Google rating and trade focus: 4.5★ from 54 Google reviews, listed on Google as “Roofing contractor”.
Based in Burlington, 27 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Window installation service”.
Based in Macomb, 30 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Window installation service”.
Based in Galesburg, 19 mi away
Ranked #10 because of its Google rating and trade focus: 3.0★ from 4 Google reviews, listed on Google as “Window installation service”.
Based in Galesburg, 8 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Window installation service”.
Based in Rock Island, 37 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Window installation service”.
Based in East Moline, 36 mi away
Ranked #13 because of its Google rating and trade focus: 1.0★ from 3 Google reviews, listed on Google as “Window installation service”.
Based in Rock Island, 36 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 38 Google reviews, 38 Google reviews.
Based in Macomb, 32 mi away
Ranked #15 because of its Google rating and trade focus: 4.2★ from 12 Google reviews, listed on Google as “Window installation service”.
Based in Galesburg, 16 mi away
Ranked #16 because of its Google rating and trade focus: 4.0★ from 39 Google reviews, listed on Google as “Roofing contractor”.
Based in Sun Prairie, 20 mi away
Ranked #17 because of its Google rating and review volume: 3.3★ from 31 Google reviews, 31 Google reviews.
Based in Burlington, 26 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Contractor”.
Based in Burlington, 26 mi away
Ranked #19 because of its Google rating and trade focus: 3.8★ from 19 Google reviews, listed on Google as “Roofing contractor”.
Based in Burlington, 27 mi away
Ranked #20 because of its Google rating and review volume: 4.8★ from 18 Google reviews, 18 Google reviews.
Based in Moline, 40 mi away
Ranked #21 because of its Google rating and trade focus: 3.9★ from 7 Google reviews, listed on Google as “Kitchen remodeler”.
Based in Rock Island, 40 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Gutter cleaning service”.
Based in Moline, 40 mi away
Ranked #23 because of its Google rating and review volume: 4.0★ from 42 Google reviews, 42 Google reviews.
Based in East Moline, 32 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 3 Google reviews, open Saturdays until 6 PM.
Based in Burlington, 30 mi away
Ranked #25 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Roofing contractor”.
#1 to #25 are shown in full above. Here are #26 to #27, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | A-1 Roofing | 59 | 3.0★ (6) | 40 mi |
| 27 | D.W. Improvements, L.L.C. | 59 | 3.0★ (6) | 40 mi |
14 more window installers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Alex’s construction Plus Inc. | 4.3★ (12) | In Monmouth |
| Cook Construction | 3.0★ (2) | In Monmouth |
| Davis Seamless Gutters of Galesburg | 5.0★ (2) | 17 mi |
| Elite Exterior's | 2.0★ (1) | 18 mi |
| Hosemann Seamless Gutters & More Inc. | 5.0★ (51) | In Monmouth |
| J & M Total Construction Inc. | 18 mi | |
| JB&D Siding & Window | 31 mi | |
| Niles siding and windows | 5.0★ (2) | 26 mi |
| Precision home improvement specialist LLC | 36 mi | |
| QC General Inc. | 5.0★ (2) | 33 mi |
| Quality Roofing Pro in Monmouth - Residential & Commercial Roofing | 4.9★ (133) | In Monmouth |
| Schmitt Construction, Inc. | 27 mi | |
| Strause Construction | 5.0★ (1) | 39 mi |
| The Acri Company | 26 mi |
Typical prices in USD, adjusted for Illinois 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 27 Monmouth 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 Monmouth 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 |