326 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Alamo: Renewal by Andersen of San Francisco, CR Score 62/100; 4.8★ from 1,945 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Rios Glass, posts 24/7 hours; ranked #8 of 326.
Most-reviewed: Right Way Garage Doors, 3,698 Google reviews at 4.9★, the most of 326 ranked; ranked #24.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
326 Alamo window installers are ranked here by CR Score, from ten published factors. 26 are open 24/7, 186 open Saturdays and 80 open Sundays, based on posted hours. The median Google rating is 4.8★ across 326 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Renewal by Andersen of San Francisco | 62 | 4.8★ (1,945) | Hayward, 16 mi away | Sat · Sun · Evenings | Overall |
| 2 | Elevate Auto Glass | 61 | 5.0★ (127) | Hercules, 4 mi away | Sat · Sun · Evenings | — |
| 3 | Ivan's Mobile Auto Glass services | 61 | 5.0★ (118) | Antioch, 5 mi away | Sat · Sun · Evenings | — |
| 4 | AMG Doors & Windows | 60 | 4.9★ (72) | Antioch, 3 mi away | Sat · Sun | — |
| 5 | 3 Day Blinds | 59 | 4.7★ (61) | Alamo | Sat · Sun · Evenings | — |
| 6 | Auto Glass Express | 59 | 4.9★ (404) | Berkeley, 15 mi away | Sat | — |
| 7 | King Of Auto Glass | 59 | 4.9★ (232) | Vallejo, 23 mi away | Sat · Sun · Evenings | — |
| 8 | Rios Glass | 59 | 5.0★ (8) | Alamo | 24/7 | Emergencies |
| 9 | California Sunrooms Co. | 58 | 4.9★ (70) | Alamo | Sat | — |
| 10 | Den Defenders Window Screens | 58 | 5.0★ (68) | Antioch, 16 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 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: 4.8★ from 1,945 Google reviews, listed on Google as “Window installation service”.
Based in Hercules, 4 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 127 Google reviews, listed on Google as “Window installation service”.
Based in Antioch, 5 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Window installation service”.
Based in Antioch, 3 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 72 Google reviews, listed on Google as “Window installation service”.
Based in Alamo
Ranked #5 because of its Google rating and trade focus: 4.7★ from 61 Google reviews, listed on Google as “Window installation service”.
Based in Berkeley, 15 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 404 Google reviews, listed on Google as “Window installation service”.
Based in Vallejo, 23 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 232 Google reviews, listed on Google as “Window installation service”.
Based in Alamo
Ranked #8 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Window installation service”.
Based in Alamo
Ranked #9 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Window installation service”.
Based in Antioch, 16 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 68 Google reviews, listed on Google as “Window installation service”.
Based in Pleasanton, 14 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 208 Google reviews, listed on Google as “Window installation service”.
Based in Alamo
Ranked #12 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Window installation service”.
Based in Oakland, 11 mi away
Ranked #13 because of its Google rating and trade focus: 4.3★ from 322 Google reviews, listed on Google as “Window installation service”.
Based in Danville, 3 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Window installation service”.
Based in Alamo
Ranked #15 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Window installation service”.
Based in Hayward, 17 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 1,133 Google reviews.
Based in San Francisco, 21 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “Window installation service”.
Based in San Francisco, 22 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 150 Google reviews, listed on Google as “Window installation service”.
Based in Pleasant Hill, 9 mi away
Ranked #19 because of its Google rating and review volume: 4.9★ from 426 Google reviews.
Based in Concord, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 21 Google reviews, listed on Google as “Window installation service”.
Based in Walnut Creek, 5 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Window installation service”.
Based in Hayward, 15 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 151 Google reviews, listed on Google as “Window installation service”.
Based in Hayward, 14 mi away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 173 Google reviews, listed on Google as “Window installation service”.
Based in Vacaville, 35 mi away
Ranked #24 because of its Google rating and review volume: 4.9★ from 3,698 Google reviews, the most in Alamo.
Based in San Lorenzo, 14 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 73 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 326 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. Ramos Construction Inc. | In Alamo | |
| Ace Board Up Service Walnut Creek - Alamo - Lafayette - Pleasant Hill | 4.9★ (76) | In Alamo |
| Alan Siding & Windows | 5.0★ (2) | 8 mi |
| AM Construction | 3.0★ (2) | 17 mi |
| Bay Area Windows | 5.0★ (2) | 6 mi |
| Best Exteriors | 5.0★ (2) | 12 mi |
| Fautt Homes | 5.0★ (7) | In Alamo |
| Giorvas Landscape & Construction | 2.6★ (5) | In Alamo |
| Jeff Martinez Construction, Inc. | 5.0★ (2) | 14 mi |
| KH Waterproofing And Restoration | 5.0★ (2) | 14 mi |
| Pane in the Glass Gutter & Window Cleaning - Mark Simitz | In Alamo | |
| Pane In The Glass Gutter Cleaning & Window Cleaning - Mark Simitz | In Alamo | |
| Pezuna Window Cleaning | 5.0★ (2) | 15 mi |
| Sears Heating and Air Conditioning | 3.0★ (2) | 18 mi |
| United Constructors Inc. | 4.9★ (48) | In Alamo |
| V & G Builders | 5.0★ (2) | 11 mi |
| Venue | 5.0★ (2) | 7 mi |
| Walnut Creek Construction and Remodeling Company | 5.0★ (25) | In Alamo |
| Westwind Builders & Electric | 5.0★ (1) | In Alamo |
| Wise Roofing Solutions of Concord | 4.0★ (2) | 9 mi |
Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,710 | $7,930 | $12,770 | Per project (several windows): typical range of customer-reported projects. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
We scored 326 Alamo 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 Alamo 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 |