312 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Bel Air South: Window Nation, CR Score 90/100; 4.7★ from 4,186 Google reviews; open 24/7.
Best for emergencies (open 24/7): Grimes Glass LLC, posts 24/7 hours; ranked #2 of 312.
Most-reviewed: American Home Contractors, 3,700 Google reviews at 4.9★, the most of 312 ranked after Window Nation; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
312 Bel Air South window installers are ranked here by CR Score, from 8 published factors. 42 are open 24/7, 186 open Saturdays and 90 open Sundays, based on posted hours. The median Google rating is 4.8★ across 312 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Window Nation | 90 | 4.7★ (4,186) | Glen Burnie, 29 mi away | 24/7 | Overall |
| 2 | Grimes Glass LLC | 89 | 5.0★ (101) | Aberdeen, 8 mi away | 24/7 | Emergencies |
| 3 | WeatherMaster Windows | 86 | 4.6★ (262) | Baltimore, 21 mi away | 24/7 | — |
| 4 | Royal Castle Contractors | 86 | 5.0★ (9) | Bel Air South | 24/7 | — |
| 5 | Safety Glass Repair | 86 | 5.0★ (97) | Catonsville, 30 mi away | 24/7 | — |
| 6 | West Shore Home | 86 | 4.8★ (1,036) | Arbutus, 26 mi away | Sat · Sun · Evenings | — |
| 7 | Zen Windows Central PA | 84 | 4.9★ (127) | Lancaster, 37 mi away | 24/7 | — |
| 8 | Glass + Screen Hospital | 83 | 4.9★ (425) | Middle River, 13 mi away | Sat | — |
| 9 | Allied Remodeling | 83 | 4.7★ (1,074) | Timonium, 17 mi away | 24/7 | — |
| 10 | American Home Contractors | 83 | 4.9★ (3,700) | Washington, D.C., 40 mi away | 24/7 | Most reviews |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.7★ from 4,186 Google reviews, the most Google reviews on this list (4,186).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Aberdeen, 8 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 101 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 21 mi away
Ranked #3 because of its Google rating and availability: 4.6★ from 262 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bel Air South
Ranked #4 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Catonsville, 30 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 97 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arbutus, 26 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 1,036 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lancaster, 37 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 127 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Middle River, 13 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 425 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Timonium, 17 mi away
Ranked #9 because of its Google rating and availability: 4.7★ from 1,074 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Washington, D.C., 40 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 3,700 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 12 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 247 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bel Air South
Ranked #12 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Fallston, 5 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 83 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Newark, 32 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 193 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bel Air, 3 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 132 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Towson, 17 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 140 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hunt Valley, 18 mi away
Ranked #17 because of its Google rating and availability: 4.9★ from 185 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 31 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 949 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Edgemoor, 38 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hampstead, 30 mi away
Ranked #20 because of its Google rating and availability: 4.8★ from 607 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Joppatowne, 5 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 54 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Columbia, 38 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 99 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ashton-Sandy Spring, 35 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 90 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lancaster, 38 mi away
Ranked #24 because of its Google rating and availability: 4.7★ from 1,824 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Middle River, 12 mi away
Ranked #25 because of its Google rating and availability: 4.2★ from 1,861 Google reviews, open 24/7.
Based on 6 of 8 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 312 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 |
|---|---|---|
| All American Contracting | 5.0★ (1) | 16 mi |
| BrentMore Construction, Inc. | 5.0★ (2) | 37 mi |
| C R Windows Inc. | 5.0★ (2) | 28 mi |
| C.I.R. Construction and Remodeling | 5.0★ (2) | 31 mi |
| caspian home improvement | 5.0★ (1) | 18 mi |
| Chesapeake Window & Remodeling, Inc. | 5.0★ (2) | 14 mi |
| Cobb & Sons Roofing & Exterior Co. | 5.0★ (2) | 18 mi |
| Countryside Roofing & Exteriors | 5.0★ (2) | 33 mi |
| County View Contracting | 5.0★ (1) | 5 mi |
| Dolphin window cleaning and Painting LLC | 5.0★ (2) | 21 mi |
| Fox Creek Builders LLC | 5.0★ (2) | 33 mi |
| Glen Burnie Auto Glass | 5.0★ (2) | 33 mi |
| Hodges Window & Glass | 5.0★ (1) | 5 mi |
| Lopez Remodeling, LLC | 5.0★ (2) | 32 mi |
| Quality Auto Glass | 5.0★ (2) | 29 mi |
| Reasonable Solutions LLC | 5.0★ (2) | 26 mi |
| Revolution Window Systems | 5.0★ (1) | 19 mi |
| Todd Oliver&Sons | 5.0★ (1) | 21 mi |
| Tye's Handyman Services | 3.0★ (2) | 37 mi |
| Window Marvel | 5.0★ (1) | 15 mi |
Typical prices in USD, adjusted for Maryland 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 312 Bel Air South 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 Bel Air South 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 |