89/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 392 Google reviews, open 24/7.
- 5.0★ from 392 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 19006 Perrone Dr, Germantown, MD 20874
Best Window Installers in Charles Town, WV (2026)
183 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Charles Town: Quality Window & Glass Repair LLC, CR Score 89/100; 5.0★ from 392 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Safety Glass Repair, posts 24/7 hours; ranked #2 of 183.
- 3
Most-reviewed: American Home Contractors, 2,385 Google reviews at 4.9★, the most of 183 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
183 Charles Town window installers are ranked here by CR Score, from 8 published factors. 34 are open 24/7, 111 open Saturdays and 53 open Sundays, based on posted hours. The median Google rating is 4.9★ across 183 rated businesses.
Top 10 window installers in Charles Town at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Quality Window & Glass Repair LLC | 89 | 5.0★ (392) | Germantown, 32 mi away | 24/7 | Overall |
| 2 | Safety Glass Repair | 86 | 5.0★ (165) | Gaithersburg, 38 mi away | 24/7 | Emergencies |
| 3 | American Home Contractors | 84 | 4.9★ (2,385) | Chantilly, 36 mi away | 24/7 | Most reviews |
| 4 | Auto Glass Experts | 84 | 5.0★ (50) | Aspen Hill, 36 mi away | 24/7 | — |
| 5 | Mid-Atlantic Home Improvement Co. | 83 | 4.8★ (45) | Gaithersburg, 35 mi away | 24/7 | — |
| 6 | Virginia Glass Window | 83 | 5.0★ (24) | Merrifield, 32 mi away | 24/7 | — |
| 7 | Semper West Roofing | 82 | 5.0★ (303) | Frederick, 29 mi away | 24/7 | — |
| 8 | TEO Roofing | 82 | 4.9★ (283) | Frederick, 24 mi away | 24/7 | — |
| 9 | Glass And Doors Region | 82 | 4.7★ (44) | Annandale, 38 mi away | 24/7 | — |
| 10 | Happy Home | 81 | 5.0★ (191) | Hagerstown, 28 mi away | 24/7 | — |
The 183 best window installers in Charles Town, ranked
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.
Based in Gaithersburg, 38 mi away
86/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 165 Google reviews, open 24/7.
- 5.0★ from 165 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20032 Mattingly Terrace, Gaithersburg, MD 20879
Based in Chantilly, 36 mi away
84/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 2,385 Google reviews, the most Google reviews on this list (2,385).
- 4.9★ from 2,385 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 14155 Sullyfield Cir Suite A, Chantilly, VA 20151
Based in Aspen Hill, 36 mi away
84/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 50 Google reviews, open 24/7.
- 5.0★ from 50 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Gaithersburg, 35 mi away
83/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 45 Google reviews, open 24/7.
- 4.8★ from 45 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 17729 Stoneridge Dr, Gaithersburg, MD 20878
Based in Merrifield, 32 mi away
83/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 24 Google reviews, open 24/7.
- 5.0★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Frederick, 29 mi away
82/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 303 Google reviews, open 24/7.
- 5.0★ from 303 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9211 Baltimore Rd, Frederick, MD 21704
#8 TEO Roofing
Based in Frederick, 24 mi away
82/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 283 Google reviews, open 24/7.
- 4.9★ from 283 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5229 New Design Rd, Frederick, MD 21703
Based in Annandale, 38 mi away
82/100CR ScoreRanked #9 because of its Google rating and availability: 4.7★ from 44 Google reviews, open 24/7.
- 4.7★ from 44 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#10 Happy Home
Based in Hagerstown, 28 mi away
81/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 191 Google reviews, open 24/7.
- 5.0★ from 191 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 19638 Leitersburg Pike Suite 200, Hagerstown, MD 21742
#11 PRG LLC
Based in Damascus, 33 mi away
81/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 263 Google reviews, open 24/7.
- 5.0★ from 263 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 27421 Clarksburg Rd, Damascus, MD 20872
Based in Sterling, 32 mi away
80/100CR ScoreRanked #12 because of its Google rating and availability: 4.1★ from 99 Google reviews, open 24/7.
- 4.1★ from 99 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 21564 Compass Rose Ct, Sterling, VA 20164
#13 Shanco Roofing
Based in Gaithersburg, 39 mi away
80/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 401 Google reviews, open 24/7.
- 4.9★ from 401 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7404 Lindbergh Dr suite g, Gaithersburg, MD 20879
Based in Ballenger Creek, 20 mi away
80/100CR ScoreRanked #14 because of its Google rating and availability: 4.8★ from 93 Google reviews, open 24/7.
- 4.8★ from 93 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Winchester, 18 mi away
80/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ from 240 Google reviews, listed on Google as “Window installation service”.
- 4.6★ from 240 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 130 Millwood Ave, Winchester, VA 22601
Based in Germantown, 32 mi away
80/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 212 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 212 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat 11:30 AM–4 PM · Sun closed
- Address
- 13604 Duhart Rd, Germantown, MD 20874
Based in Waynesboro, 36 mi away
80/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 170 Google reviews, open 24/7.
- 5.0★ from 170 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1981 Market Square Blvd, Waynesboro, PA 17268
Based in Chantilly, 36 mi away
79/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 396 Google reviews, listed on Google as “Window installation service”.
- 4.8★ from 396 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 14053 Willard Rd, Chantilly, VA 20151
Based in Frederick, 26 mi away
79/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 46 Google reviews, open 24/7.
- 5.0★ from 46 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 W Patrick St, Frederick, MD 21701
#20 Homefix
Based in Reston, 37 mi away
79/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 186 Google reviews, listed on Google as “Window installation service”.
- 4.9★ from 186 Google reviews
- Hours
- Mon–Thu 9 AM–5 PM · Fri–Sat 8 AM–7 PM · Sun closed
- Address
- 1768 Business Center Dr STE 320, Reston, VA 20190
#21 MDVA Windows
Based in Clarksburg, 32 mi away
79/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 96 Google reviews, listed on Google as “Window installation service”.
- 4.9★ from 96 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12828 Clarksburg Square Rd UNIT 304, Clarksburg, MD 20871
Based in Chantilly, 35 mi away
78/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 85 Google reviews, open 24/7.
- 5.0★ from 85 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Lee Rd, Chantilly, VA 20151
#23 Dream Exterior
Based in Gaithersburg, 38 mi away
78/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 97 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 97 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 7 AM–5 PM · Sun closed
- Address
- 8401 Helgerman Ct, Gaithersburg, MD 20877
Based in Dale City, 26 mi away
78/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 38 Google reviews, open 24/7.
- 5.0★ from 38 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Gaithersburg, 36 mi away
78/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 24 Google reviews
- Hours
- Mon–Sun 9 AM–4 PM
- Address
- 438 N Frederick Ave #108, Gaithersburg, MD 20877
Window installers ranked #26 to #50
#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 183 ranked window installers here; the rest are on their profiles.
Also serving Charles Town
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 |
|---|---|---|
| Aspen Contracting, Inc. | 3.5★ (11) | In Charles Town |
| Beallair by Wormald | 4.4★ (22) | In Charles Town |
| BSP Plumbing | 2.8★ (470) | In Charles Town |
| Builders Siding Co | 5.0★ (2) | 32 mi |
| Caz's Customs | 5.0★ (5) | In Charles Town |
| Dirty Girl Inc | 4.8★ (60) | In Charles Town |
| Fish Window Cleaning | 5.0★ (2) | 36 mi |
| H&K Roof N Gutters LLC | In Charles Town | |
| J.G.'s Home Improvement | 4.7★ (13) | In Charles Town |
| JC Siding And Roofing | 5.0★ (8) | In Charles Town |
| Jefferson Construction LLC | 5.0★ (5) | In Charles Town |
| Kemper Carpet & Flooring Warehouse | 5.0★ (2) | 39 mi |
| Leo's Construction | 5.0★ (24) | In Charles Town |
| Let George Do It | 5.0★ (1) | 18 mi |
| Red Turtle Roofing of Germantown | 5.0★ (1) | 33 mi |
| Sears Heating and Air Conditioning | 3.0★ (2) | 34 mi |
| Sears Heating and Air Conditioning | 3.0★ (1) | 12 mi |
| Shutters By Design | 5.0★ (1) | 31 mi |
| Simplex Exteriors | 1.0★ (1) | 20 mi |
| Swigart Home Improvement | 5.0★ (1) | 30 mi |
How much do window installers cost in Charles Town?
Typical prices in USD, adjusted for West Virginia 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 |
How we ranked Charles Town window installers
We scored 183 Charles Town 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 Charles Town 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 |
Window installers in Charles Town: frequently asked questions
Who is the best window installer in Charles Town?
By CR Score, the highest-ranked window installer in Charles Town, WV is Quality Window & Glass Repair LLC with a CR Score of 89/100. It has 5.0★ from 392 Google reviews. It is open 24/7. Safety Glass Repair (#2) and American Home Contractors (#3) follow. We ranked 183 window installers on 8 factors, last updated October 22, 2026.
How many window installers are there in Charles Town?
ContractorsRanked ranks 183 window installers serving Charles Town, WV. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which window installers in Charles Town are open 24/7?
34 ranked window installers in Charles Town post 24/7 hours. The highest-ranked are Quality Window & Glass Repair LLC (#1), Safety Glass Repair (#2) and American Home Contractors (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which window installers in Charles Town work on weekends?
111 of 183 ranked window installers post Saturday hours and 53 post Sunday hours. The highest-ranked open Saturdays are Quality Window & Glass Repair LLC (#1), Safety Glass Repair (#2) and American Home Contractors (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does window replacement cost in Charles Town?
Window replacement typically costs $3,370 to $11,600, with $7,200 typical (Per project (several windows): typical range of customer-reported projects. US national range × 0.98 South Atlantic factor (2025 Cost vs. Value Report)). The range is adjusted for West Virginia. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Charles Town window installers have?
The median Google rating among 183 rated window installers in Charles Town is 4.9★, with a median of 39 reviews. American Home Contractors has the most, 2,385 reviews, and ranks #3. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank window installers?
Each window installer gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do window installers outside Charles Town count in this ranking?
Yes, if they are within 40 mi of the Charles Town city center, our service radius for window installers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Charles Town
- October 2026: CR Scores recalculated for 183 window installers serving Charles Town.
- October 2026: 1 duplicate listing merged.
More window installers and Charles Town pages
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