89/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 980 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 980 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Window Installers in La Plata, MD (2026)
429 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in La Plata: Kennedy Locksmith, CR Score 89/100; 4.9★ from 980 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Kennedy Glass in DC, posts 24/7 hours; ranked #2 of 429.
- 17
Most-reviewed: Thompson Creek Window Company Lanham, 3,143 Google reviews at 4.5★, the most of 429 ranked; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
429 La Plata window installers are ranked here by CR Score, from 8 published factors. 78 are open 24/7, 292 open Saturdays and 154 open Sundays, based on posted hours. The median Google rating is 4.9★ across 429 rated businesses.
Top 10 window installers in La Plata at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Kennedy Locksmith | 89 | 4.9★ (980) | Aspen Hill, 30 mi away | 24/7 | Overall |
| 2 | Kennedy Glass in DC | 88 | 4.9★ (382) | Washington, D.C., 27 mi away | 24/7 | Emergencies |
| 3 | DMV Window Repairs LLC | 88 | 5.0★ (115) | Dale City, 18 mi away | 24/7 | — |
| 4 | Window Nation | 88 | 4.5★ (1,235) | Lorton, 18 mi away | 24/7 | — |
| 5 | Old Town Glass & Window Repair | 87 | 5.0★ (372) | Alexandria, 21 mi away | — | — |
| 6 | Lumina Glass & Windows | 87 | 5.0★ (107) | Washington, D.C., 25 mi away | 24/7 | — |
| 7 | Prestine Glass Solutions – Window & Glass Replacement | 87 | 5.0★ (101) | Washington, D.C., 24 mi away | 24/7 | — |
| 8 | DMV Pro Glass | 86 | 4.9★ (63) | Dale City, 21 mi away | 24/7 | — |
| 9 | Fast Glass Solutions | 86 | 4.9★ (80) | Arlington, 24 mi away | 24/7 | — |
| 10 | AA Window & Glass Repair | 86 | 4.8★ (116) | Washington, D.C., 27 mi away | 24/7 | — |
The 429 best window installers in La Plata, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Washington, D.C., 27 mi away
88/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 382 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 382 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 901 R St NW, Washington, DC 20001
Based in Dale City, 18 mi away
88/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 115 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 115 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13709 Lynn St, Woodbridge, VA 22191
Based in Lorton, 18 mi away
88/100CR ScoreRanked #4 because of its Google rating and availability: 4.5★ from 1,235 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 1,235 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8198 Terminal Rd #105, Lorton, VA 22079
Based in Alexandria, 21 mi away
87/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 372 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 372 Google reviews
- Address
- 244 S Reynolds St, Alexandria, VA 22304
Based in Washington, D.C., 25 mi away
87/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 107 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 107 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1101 Pennsylvania Ave NW, Washington, DC 20004
Based in Washington, D.C., 24 mi away
87/100CR ScoreRanked #7 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.
- 5.0★ from 101 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1235 Pennsylvania Ave. SE, Washington, DC 20003
Based in Dale City, 21 mi away
86/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 63 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 63 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12223 Nutmeg Ct, Woodbridge, VA 22192
Based in Arlington, 24 mi away
86/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 80 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 80 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1850 Columbia Pike, Arlington, VA 22204
Based in Washington, D.C., 27 mi away
86/100CR ScoreRanked #10 because of its Google rating and availability: 4.8★ from 116 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 116 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1535 17th St NW Ste 200, Washington, DC 20036
#11 Pro Glass Repair
Based in Washington, D.C., 26 mi away
85/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 74 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 74 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2425 L St NW, Washington, DC 20037
Based in Fairfax, 28 mi away
85/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 669 Google reviews, listed on Google as “Window installation service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 4.8★ from 669 Google reviews
- Address
- 2814 Merrilee Dr A, Fairfax, VA 22031
Based in North Bethesda, 36 mi away
85/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 1,041 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 1,041 Google reviews
- Hours
- Mon–Sun 10 AM–6 PM
- Address
- 5081 Nicholson Ln, North Bethesda, MD 20852
Based in Waldorf, 7 mi away
85/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3029 Lundt Ct, Waldorf, MD 20603
Based in Arlington, 24 mi away
85/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 35 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 35 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Silver Spring, 35 mi away
85/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 416 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 416 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 10822 Childs Ct, Silver Spring, MD 20901
Based in Lanham, 30 mi away
84/100CR ScoreRanked #17 because of its Google rating and review volume: 4.5★ from 3,143 Google reviews, the most Google reviews on this list (3,143).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 3,143 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 8 AM–5 PM · Sun 9 AM–5 PM
- Address
- 4200 Parliament Pl #600, Lanham, MD 20706
Based in Falls Church, 26 mi away
84/100CR ScoreRanked #18 because of its Google rating and availability: 4.8★ from 50 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 50 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6533, 2035 Arlington Blvd Suite A 2035, A, Falls Church, VA 22042
Based in La Plata
84/100CR ScoreRanked #19 because of its Google rating and availability: 4.9★ from 117 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 117 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9375 Chesapeake St Suite 225, La Plata, MD 20646
Based in Springfield, 19 mi away
84/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 15 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7735 Matisse Way, Springfield, VA 22153
Based in Crofton, 24 mi away
84/100CR ScoreRanked #21 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alexandria, 20 mi away
84/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 16 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5407 Vine St Rose Hill, Alexandria, VA 22310
Based in Waldorf, 7 mi away
84/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Window installation service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
- Address
- 52 Industrial Park Dr Suite 11, Waldorf, MD 20602
Based in College Park, 34 mi away
84/100CR ScoreRanked #24 because of its Google rating and availability: 4.8★ from 159 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 159 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9320 Cherry Hill Rd, College Park, MD 20740
Based in Chantilly, 35 mi away
83/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 2,385 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 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
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 429 ranked window installers here; the rest are on their profiles.
Also serving La Plata
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 |
|---|---|---|
| 410 New Roof | 5.0★ (2) | 21 mi |
| Allied Auto Glass of D.C | 5.0★ (2) | 26 mi |
| AZE Home Improvement, LLC | 5.0★ (2) | 22 mi |
| Bar Harbor Cedar LLC | In La Plata | |
| Clear Choice of Maryland | 3.0★ (2) | 29 mi |
| DC Blinds & Shades | 5.0★ (2) | 30 mi |
| EPR Plumbing & Remodeling | In La Plata | |
| HiRISE WINDOWS | 3.0★ (2) | 33 mi |
| John's Concrete & Home Improvements | In La Plata | |
| M & G Renovations, Inc | 5.0★ (2) | 32 mi |
| Oriental Living | 5.0★ (2) | 33 mi |
| Priddy Roofing And Exteriors | 4.9★ (241) | In La Plata |
| PROFIX WINDOWS & DOORS SERVICES | 5.0★ (2) | 28 mi |
| Sears Heating and Air Conditioning | 3.0★ (2) | 7 mi |
| Sears Window Replacement | 2.5★ (2) | 21 mi |
| Smart Home Improvement DMV | 5.0★ (2) | 28 mi |
| St Joseph's Roofing Inc | 5.0★ (2) | 32 mi |
| Stanek Windows | 3.0★ (2) | 30 mi |
| TriState Glassworx | 5.0★ (2) | 25 mi |
| WG Home Remodeling | 5.0★ (2) | 30 mi |
How much do window installers cost in La Plata?
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 |
How we ranked La Plata window installers
We scored 429 La Plata 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 La Plata 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 La Plata: frequently asked questions
Who is the best window installer in La Plata?
By CR Score, the highest-ranked window installer in La Plata, MD is Kennedy Locksmith with a CR Score of 89/100. It has 4.9★ from 980 Google reviews. It is open 24/7. Kennedy Glass in DC (#2) and DMV Window Repairs LLC (#3) follow. We ranked 429 window installers on 8 factors, last updated October 22, 2026.
How many window installers are there in La Plata?
ContractorsRanked ranks 429 window installers serving La Plata, MD. 1 of them is based in La Plata; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which window installers in La Plata are open 24/7?
78 ranked window installers in La Plata post 24/7 hours. The highest-ranked are Kennedy Locksmith (#1), Kennedy Glass in DC (#2) and DMV Window Repairs LLC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which window installers in La Plata work on weekends?
292 of 429 ranked window installers post Saturday hours and 154 post Sunday hours. The highest-ranked open Saturdays are Kennedy Locksmith (#1), Kennedy Glass in DC (#2) and DMV Window Repairs LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does window replacement cost in La Plata?
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 Maryland. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do La Plata window installers have?
The median Google rating among 429 rated window installers in La Plata is 4.9★, with a median of 34 reviews. Thompson Creek Window Company Lanham has the most, 3,143 reviews, and ranks #17. 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 La Plata count in this ranking?
Yes, if they are within 40 mi of the La Plata 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 La Plata
- October 2026: CR Scores recalculated for 429 window installers serving La Plata.
- October 2026: 1 duplicate listing merged.
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