21 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Luis Obispo: SLO Shutters, CR Score 62/100; 5.0★ from 76 Google reviews; open Saturdays until 5 PM.
Most-reviewed: Paso Robles Glass, 115 Google reviews at 4.8★, the most of 21 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
21 San Luis Obispo window installers are ranked here by CR Score, from ten published factors. 4 open Saturdays, based on posted hours. The median Google rating is 4.7★ across 21 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | SLO Shutters | 62 | 5.0★ (76) | Atascadero, 12 mi away | Sat | Overall |
| 2 | Pop's Soft Wash and Window Cleaning | 59 | 5.0★ (66) | Oceano, 6 mi away | Sat | — |
| 3 | Paso Robles Glass | 59 | 4.8★ (115) | Paso Robles, 25 mi away | — | Most reviews |
| 4 | Arroyo Grande Glass & Mirror | 58 | 4.7★ (47) | Arroyo Grande, 12 mi away | — | — |
| 5 | A-Town Glass & window | 56 | 4.6★ (10) | Atascadero, 14 mi away | — | — |
| 6 | Aggson's Glass Co. | 56 | 3.9★ (18) | San Luis Obispo | — | — |
| 7 | Los Osos Glass Inc. | 56 | 4.4★ (21) | Los Osos, 10 mi away | — | — |
| 8 | Specialty Glass | 54 | 4.3★ (49) | Santa Maria, 27 mi away | — | — |
| 9 | 5 Cities Mobile Screen and Home Services | 54 | 4.6★ (10) | Arroyo Grande, 12 mi away | — | — |
| 10 | City Glass | 54 | 4.6★ (28) | Santa Maria, 28 mi away | — | — |
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: 5.0★ 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 Oceano, 6 mi away
Ranked #2 because of its Google rating and review volume: 5.0★ from 66 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Paso Robles, 25 mi away
Ranked #3 because of its Google rating and review volume: 4.8★ from 115 Google reviews, the most in San Luis Obispo.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arroyo Grande, 12 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 47 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Atascadero, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Window installation service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in San Luis Obispo
Ranked #6 because of its Google rating and trade focus: 3.9★ from 18 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Osos, 10 mi away
Ranked #7 because of its Google rating and trade focus: 4.4★ from 21 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Maria, 27 mi away
Ranked #8 because of its Google rating and trade focus: 4.3★ from 49 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arroyo Grande, 12 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Maria, 28 mi away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 28 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Atascadero, 15 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Luis Obispo
Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Maria, 28 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Paso Robles, 20 mi away
Ranked #14 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Window installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arroyo Grande, 15 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Gutter cleaning service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in San Luis Obispo
Ranked #16 because of its Google rating and review volume: 4.5★ from 13 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oceano, 13 mi away
Ranked #17 because of its Google rating and trade focus: 4.0★ from 9 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in San Luis Obispo
Ranked #18 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orcutt, 31 mi away
Ranked #19 because of its Google rating and review volume: 4.5★ from 16 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orcutt, 31 mi away
Ranked #20 because of its Google rating and review volume: 5.0★ from 20 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Maria, 29 mi away
Ranked #21 because of its Google rating and review volume: 4.7★ from 20 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
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 |
|---|---|---|
| 3 Day Blinds | 3.0★ (2) | In San Luis Obispo |
| Browder Painting Company | 5.0★ (1,069) | In San Luis Obispo |
| City Wide Facility Solutions - Central Coast | 5.0★ (7) | In San Luis Obispo |
| Coast Construction, Inc. | 5.0★ (2) | In San Luis Obispo |
| Crystal Clean A1 Window Services | In San Luis Obispo | |
| Drain Doctors Plumbing | 4.8★ (52) | In San Luis Obispo |
| Elements Home Design | 5.0★ (2) | 11 mi |
| Green Goods | 4.8★ (33) | In San Luis Obispo |
| Jack Handley Construction Inc. | 5.0★ (1) | In San Luis Obispo |
| Jeff M. Window Cleaning | 5.0★ (2) | 12 mi |
| Kepler Design Group | 5.0★ (4) | In San Luis Obispo |
| Monarch Air Conditioning, Heating & Electrical - SLO | 4.6★ (653) | In San Luis Obispo |
| Pacific Builders | 5.0★ (4) | In San Luis Obispo |
| Precision Garage Door Service | 4.8★ (921) | In San Luis Obispo |
| Quaglino’s Flooring San Luis Obispo | 4.7★ (16) | In San Luis Obispo |
| Sears Heating and Air Conditioning | In San Luis Obispo | |
| Sears Heating and Air Conditioning | 1.0★ (1) | 11 mi |
| Signature Painting | In San Luis Obispo | |
| THE Construction Company | 4.6★ (10) | In San Luis Obispo |
| Wallace Plumbing | 4.8★ (35) | In San Luis Obispo |
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 21 San Luis Obispo 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 San Luis Obispo 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 |