56 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Union: West Shore Home, CR Score 87/100; 4.8★ from 1,045 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Southern Industries Home Improvements, posts 24/7 hours; ranked #4 of 56.
Most-reviewed: Guy Roofing Inc., 919 Google reviews at 4.4★, the most of 56 ranked after West Shore Home; ranked #20.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
56 Union window installers are ranked here by CR Score, from 8 published factors. 5 are open 24/7, 26 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.8★ across 56 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | West Shore Home | 87 | 4.8★ (1,045) | Greer, 33 mi away | Sat · Sun · Evenings | Overall |
| 2 | Window Depot USA of The Upstate and Greater Greenville, SC | 85 | 4.9★ (274) | Greer, 31 mi away | Sat · Sun | — |
| 3 | Renewal by Andersen of the Carolinas-Duncan | 83 | 4.6★ (392) | Greenville, 31 mi away | Sat · Sun · Evenings | — |
| 4 | Southern Industries Home Improvements | 80 | 4.6★ (713) | Greenville, 38 mi away | 24/7 | Emergencies |
| 5 | Window Hero Lake Wylie | 79 | 4.9★ (241) | Rock Hill, 39 mi away | Sat · Sun · Evenings | — |
| 6 | Feazel Roofing | 79 | 4.9★ (111) | Greenville, 37 mi away | 24/7 | — |
| 7 | Budget Blinds of Gastonia | 78 | 5.0★ (96) | Gastonia, 39 mi away | Sat | — |
| 8 | Window Nation | 78 | 3.9★ (14) | Greenville, 38 mi away | 24/7 | — |
| 9 | Spartanburg Siding & Window Co | 78 | 4.7★ (75) | Greer, 27 mi away | Sat | — |
| 10 | BB Window Replacement and Installation | 77 | 4.5★ (45) | Rock Hill, 37 mi away | Sat · Sun · Evenings | — |
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 1,045 Google reviews, the most Google reviews on this list (1,045).
Based in Greer, 31 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 274 Google reviews, listed on Google as “Window installation service”.
Based in Greenville, 31 mi away
Ranked #3 because of its Google rating and trade focus: 4.6★ from 392 Google reviews, listed on Google as “Window installation service”.
Based in Greenville, 38 mi away
Ranked #4 because of its Google rating and availability: 4.6★ from 713 Google reviews, open 24/7.
Based in Rock Hill, 39 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 241 Google reviews, 241 Google reviews.
Based in Greenville, 37 mi away
Ranked #6 because of its Google rating and availability: 4.9★ from 111 Google reviews, open 24/7.
Based in Gastonia, 39 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Window installation service”.
Based in Greenville, 38 mi away
Ranked #8 because of its Google rating and availability: 3.9★ from 14 Google reviews, open 24/7.
Based in Greer, 27 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “Window installation service”.
Based in Rock Hill, 37 mi away
Ranked #10 because of its Google rating and trade focus: 4.5★ from 45 Google reviews, listed on Google as “Window installation service”.
Based in Greenville, 32 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Window installation service”.
Based in Spartanburg, 25 mi away
Ranked #12 because of its Google rating and review volume: 5.0★ from 172 Google reviews, 172 Google reviews.
Based in Spartanburg, 24 mi away
Ranked #13 because of its Google rating and trade focus: 4.5★ from 335 Google reviews, listed on Google as “Window installation service”.
Based in Greenville, 39 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 297 Google reviews, listed on Google as “Window installation service”.
Based in Greer, 38 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Window installation service”.
Based in Greer, 18 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Window installation service”.
Based in Greer, 25 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 65 Google reviews, listed on Google as “Roofing contractor”.
Based in Shelby, 39 mi away
Ranked #18 because of its Google rating and trade focus: 4.5★ from 6 Google reviews, listed on Google as “Window installation service”.
Based in Spartanburg, 24 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 91 Google reviews, listed on Google as “Window installation service”.
Based in Spartanburg, 26 mi away
Ranked #20 because of its Google rating and review volume: 4.4★ from 919 Google reviews, 919 Google reviews.
Based in Greer, 23 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window installation service”.
Based in York, 29 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Window installation service”.
Based in Spartanburg, 27 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 23 Google reviews, listed on Google as “Window installation service”.
Based in Spartanburg, 25 mi away
Ranked #24 because of its Google rating and review volume: 4.9★ from 70 Google reviews, 70 Google reviews.
Based in Gaffney, 24 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 13 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 56 ranked window installers here; the rest are on their profiles.
16 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 |
|---|---|---|
| AAA Remodeling, LLC | 5.0★ (2) | 38 mi |
| Allstate Roofing & More LLC | 38 mi | |
| Four Seasons Building & Remodeling | 39 mi | |
| Four Seasons Sunrooms | 39 mi | |
| Golden Key Construction | 5.0★ (13) | In Union |
| Homes by ReDo | 5.0★ (2) | 39 mi |
| K Investor LLC DBA Star Handyman | 5.0★ (1) | 31 mi |
| Maynards the Window People | 37 mi | |
| Nelson's Home improvements | 31 mi | |
| Palmetto Pergolas | 5.0★ (1) | 39 mi |
| Sears Heating and Air Conditioning | 39 mi | |
| Siding by the Best | 36 mi | |
| Southern Coast Service | 30 mi | |
| Top of the Line Siding & Windows LLC | 37 mi | |
| Upstate Home Exteriors | 36 mi | |
| Windows Siding Gutters of the Carolinas LLC | 5.0★ (1) | 24 mi |
Typical prices in USD, adjusted for South Carolina with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,370 | $7,200 | $11,600 | Per project (several windows): typical range of customer-reported projects. US national range × 0.98 South Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
We scored 56 Union 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 Union 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 |