201 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Saint John: Window Nation, CR Score 66/100; 4.8★ from 1,310 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cardinal Contractors, posts 24/7 hours; ranked #15 of 201.
Most-reviewed: Renewal by Andersen, 1,985 Google reviews at 4.7★, the most of 201 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
201 Saint John window installers are ranked here by CR Score, from ten published factors. 18 are open 24/7, 86 open Saturdays and 33 open Sundays, based on posted hours. The median Google rating is 4.7★ across 201 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Window Nation | 66 | 4.8★ (1,310) | Bridgeton, 6 mi away | 24/7 | Overall |
| 2 | Universal Windows Direct of St Louis | 62 | 4.7★ (554) | St. Louis, 5 mi away | Sat · Sun · Evenings | — |
| 3 | Mad City Windows & Baths of St. Louis | 62 | 4.7★ (853) | Bridgeton, 11 mi away | Sat · Sun · Evenings | — |
| 4 | Renewal by Andersen | 61 | 4.7★ (1,985) | Bridgeton, 8 mi away | — | Most reviews |
| 5 | Window World of St. Louis | 60 | 4.6★ (919) | Saint Peters, 7 mi away | Sat | — |
| 6 | Glass Doctor of Greater St. Louis | 60 | 4.7★ (1,253) | St. Louis, 7 mi away | — | — |
| 7 | Chaney Windows And Doors | 60 | 5.0★ (333) | Maryland Heights, 4 mi away | — | — |
| 8 | Stratum Structural Systems | 59 | 4.9★ (324) | Chesterfield, 15 mi away | Sat | — |
| 9 | Zen Windows of St. Louis | 59 | 5.0★ (197) | Ballwin, 15 mi away | Sat · Evenings | — |
| 10 | Star Auto Glass, Inc. | 59 | 4.4★ (204) | St. Louis, 7 mi away | Sat · Sun | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 1,310 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 554 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bridgeton, 11 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 853 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bridgeton, 8 mi away
Ranked #4 because of its Google rating and review volume: 4.7★ from 1,985 Google reviews, the most in Saint John.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 7 mi away
Ranked #5 because of its Google rating and trade focus: 4.6★ from 919 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 7 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 1,253 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Maryland Heights, 4 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 333 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Chesterfield, 15 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 324 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ballwin, 15 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 197 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Louis, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.4★ from 204 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hazelwood, 5 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 76 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ballwin, 13 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 523 Google reviews, listed on Google as “Window installation service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in East Saint Louis, 7 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 8 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 177 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 14 mi away
Ranked #15 because of its Google rating and review volume: 4.8★ from 634 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Peters, 16 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 222 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wentzville, 28 mi away
Ranked #17 because of its Google rating and trade focus: 4.1★ from 1,651 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ballwin, 11 mi away
Ranked #18 because of its Google rating and review volume: 5.0★ from 1,075 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Maryland Heights, 4 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 104 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Murphy, 16 mi away
Ranked #20 because of its Google rating and review volume: 4.9★ from 393 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ballwin, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alton, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 90 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Murphy, 15 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 72 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Affton, 7 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Window installation service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Saint Peters, 5 mi away
Ranked #25 because of its Google rating and trade focus: 4.1★ from 22 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 201 ranked window installers here; the rest are on their profiles.
20 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 |
|---|---|---|
| A Pane In The Glass | 5.0★ (1) | 2 mi |
| Allstar Glass Co. | 4.0★ (2) | 15 mi |
| Ansar Development Corp. | 3.0★ (1) | 9 mi |
| Cardinal Window Manufacturing | 3.0★ (2) | 6 mi |
| Edwardsville Window Cleaning & Power Washing | 5.0★ (1) | 17 mi |
| Ferguson Roofing | 5.0★ (2) | 15 mi |
| Floyd Renovations | 5.0★ (2) | 15 mi |
| Massa Exteriors | 5.0★ (2) | 25 mi |
| Mosby Building Arts - Kirkwood Studio | 5.0★ (2) | 10 mi |
| Moyer Contracting Company, Home Building, Home Improvements, & Remodeling | 5.0★ (1) | 17 mi |
| Pearl Construction Co. | 5.0★ (1) | 7 mi |
| Replacement Windows & Doors by Tim | 3.5★ (2) | 1 mi |
| Saint Louis Roofing & Renovation | 5.0★ (1) | 14 mi |
| Sears Heating and Air Conditioning | 2.0★ (2) | 6 mi |
| STL Roofing Contractor | 1.0★ (1) | 9 mi |
| The Siding Company | 4.0★ (1) | 9 mi |
| Unitherm Window Sales | 3.0★ (2) | 7 mi |
| USA Building Systems LLC | 3.0★ (2) | 5 mi |
| Window King Siding & Windows LLC | 5.0★ (2) | 5 mi |
| Window Worx Replacement | 5.0★ (2) | 11 mi |
Typical prices in USD, adjusted for Missouri with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,550 | $7,580 | $12,220 | Per project (several windows): typical range of customer-reported projects. US national range × 1.03 West North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 201 Saint John 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 Saint John 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 |