87/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 346 Google reviews, open 24/7.
- 5.0★ from 346 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Window Installers in Glasgow, DE (2026)
268 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Glasgow: Smart Shield Windows, CR Score 87/100; 5.0★ from 346 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Grimes Glass LLC, posts 24/7 hours; ranked #4 of 268.
- 7
Most-reviewed: PJ Fitzpatrick, 12,968 Google reviews at 4.8★, the most of 268 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
268 Glasgow window installers are ranked here by CR Score, from 8 published factors. 32 are open 24/7, 150 open Saturdays and 63 open Sundays, based on posted hours. The median Google rating is 4.9★ across 268 rated businesses.
Top 10 window installers in Glasgow at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Smart Shield Windows | 87 | 5.0★ (346) | Camden, 31 mi away | 24/7 | Overall |
| 2 | Renewal by Andersen Window Replacement | 86 | 4.9★ (193) | Newark, 3 mi away | Sat · Sun · Evenings | — |
| 3 | Renewal by Andersen Window Replacement | 86 | 4.9★ (5,896) | King of Prussia, 39 mi away | Sat · Sun · Evenings | — |
| 4 | Grimes Glass LLC | 85 | 5.0★ (101) | Aberdeen, 26 mi away | 24/7 | Emergencies |
| 5 | Brandywine Window & Screen | 85 | 5.0★ (21) | Edgemoor, 8 mi away | 24/7 | — |
| 6 | Hargrave Contractors, LLC | 85 | 5.0★ (75) | Glassboro, 28 mi away | 24/7 | — |
| 7 | PJ Fitzpatrick | 84 | 4.8★ (12,968) | New Castle, 11 mi away | Sat · Sun · Evenings | Most reviews |
| 8 | 1st Class Glass LLC | 83 | 4.7★ (18) | Wilmington, 14 mi away | 24/7 | — |
| 9 | G. Fedale Roofing and Siding | 83 | 4.8★ (718) | New Castle, 10 mi away | 24/7 | — |
| 10 | New Door Service LLC - Quality and fast installation of doors and windows | 83 | 5.0★ (54) | Richboro, 35 mi away | 24/7 | — |
The 268 best window installers in Glasgow, 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 Newark, 3 mi away
86/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 193 Google reviews, listed on Google as “Window installation service”.
- 4.9★ from 193 Google reviews
- Hours
- Mon–Thu 8 AM–11 PM · Fri 8 AM–10 PM · Sat–Sun 9 AM–10 PM
- Address
- 179 W Chestnut Hill Rd Suite 7, Newark, DE 19713
Based in King of Prussia, 39 mi away
86/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 5,896 Google reviews, listed on Google as “Window installation service”.
- 4.9★ from 5,896 Google reviews
- Hours
- Mon–Thu 8 AM–11 PM · Fri 8 AM–10 PM · Sat–Sun 9 AM–10 PM
- Address
- 761 5th Ave #3, King of Prussia, PA 19406
Based in Aberdeen, 26 mi away
85/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 101 Google reviews, open 24/7.
- 5.0★ from 101 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Edgemoor, 8 mi away
85/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
- 5.0★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Glassboro, 28 mi away
85/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 75 Google reviews, open 24/7.
- 5.0★ from 75 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in New Castle, 11 mi away
84/100CR ScoreRanked #7 because of its Google rating and review volume: 4.8★ from 12,968 Google reviews, the most Google reviews on this list (12,968).
- 4.8★ from 12,968 Google reviews
- Hours
- Mon–Fri 8 AM–9 PM · Sat–Sun 8 AM–6:30 PM
- Address
- 21 Industrial Blvd, New Castle, DE 19720
Based in Wilmington, 14 mi away
83/100CR ScoreRanked #8 because of its Google rating and availability: 4.7★ from 18 Google reviews, open 24/7.
- 4.7★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 108 A St, Wilmington, DE 19801
Based in New Castle, 10 mi away
83/100CR ScoreRanked #9 because of its Google rating and availability: 4.8★ from 718 Google reviews, open 24/7.
- 4.8★ from 718 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 101 S Mary St, Newport, DE 19804
Based in Richboro, 35 mi away
83/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 54 Google reviews, open 24/7.
- 5.0★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Wilmington, 12 mi away
83/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 349 Google reviews, open 24/7.
- 4.9★ from 349 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 412 Meco Dr, Wilmington, DE 19804
Based in Clifton Heights, 39 mi away
82/100CR ScoreRanked #12 because of its Google rating and availability: 4.8★ from 237 Google reviews, open 24/7.
- 4.8★ from 237 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Hockessin, 15 mi away
82/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 56 Google reviews, open 24/7.
- 4.9★ from 56 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 315 Lower Snuff Mill Road, Hockessin, DE 19707
Based in New Castle, 8 mi away
82/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 142 Google reviews, open 24/7.
- 4.9★ from 142 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13 King Ct Suite 3, New Castle, DE 19720
Based in Newark, 3 mi away
81/100CR ScoreRanked #15 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
- Address
- 91 Blue Hen Dr, Newark, DE 19713
Based in Carneys Point, 24 mi away
81/100CR ScoreRanked #16 because of its Google rating and availability: 4.9★ from 491 Google reviews, open 24/7.
- 4.9★ from 491 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1194 US-40, Pilesgrove, NJ 08098
Based in Oxford, 9 mi away
81/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 102 Google reviews, open 7 days a week.
- 5.0★ from 102 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 7 AM–8 PM · Sun 7 AM–6 PM
Based in Middletown, 8 mi away
81/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 63 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 63 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 10 AM–6 PM · Sun closed
- Address
- 849 Bullen Dr, Middletown, DE 19709
Based in King of Prussia, 25 mi away
81/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 73 Google reviews, listed on Google as “Window installation service”.
- 4.8★ from 73 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 8:30 AM–5:30 PM · Sun 9 AM–6 PM
Based in Bellmawr, 39 mi away
80/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 272 Google reviews, open 24/7.
- 4.9★ from 272 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 363 W Browning Rd Unit-B, Bellmawr, NJ 08031
Based in Claymont, 25 mi away
80/100CR ScoreRanked #21 because of its Google rating and availability: 5.0★ from 151 Google reviews, open 24/7.
- 5.0★ from 151 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in West Chester, 25 mi away
80/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 316 Google reviews, listed on Google as “Window installation service”.
- 4.9★ from 316 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
- Address
- 882 S Matlack St STE G, West Chester, PA 19382
Based in Wilmington, 15 mi away
79/100CR ScoreRanked #23 because of its Google rating and availability: 4.8★ from 84 Google reviews, open 24/7.
- 4.8★ from 84 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1601 Northeast Blvd, Wilmington, DE 19802
Based in Wayne, 32 mi away
79/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 200 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 200 Google reviews
- Hours
- Mon–Thu 8 AM–6:30 PM · Fri 8 AM–5:30 PM · Sat 8:30 AM–4:30 PM · Sun closed
- Address
- 3606 Winding Way, Newtown Square, PA 19073
Based in Carneys Point, 29 mi away
79/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 197 Google reviews, open 24/7.
- 4.9★ from 197 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 467 Fislerville Rd, Mullica Hill, NJ 08062
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 268 ranked window installers here; the rest are on their profiles.
Also serving Glasgow
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 |
|---|---|---|
| Able Roofing and Siding | 1.5★ (2) | 30 mi |
| Accurate Window & Construction | 5.0★ (2) | 12 mi |
| AJ Construction CT LLC | 5.0★ (2) | 26 mi |
| Anthony Dambro General Contractor, Inc. | 5.0★ (2) | 19 mi |
| Appleby Systems West Chester | 1.5★ (2) | 27 mi |
| Architectural Window Restoration | 4.5★ (2) | 22 mi |
| Countryside Roofing & Exteriors | 5.0★ (2) | 34 mi |
| Delaware Power Wash Plus | 1.8★ (5) | In Glasgow |
| Delaware Remodeling Co. | 3.4★ (5) | In Glasgow |
| E. Crossan Construction | 4.8★ (39) | In Glasgow |
| Foster and Sons Custom Builders | 5.0★ (11) | In Glasgow |
| L.L. renovation | 5.0★ (2) | In Glasgow |
| Mancilla Professional Painting Service | 4.7★ (7) | In Glasgow |
| Morales GTO Empire | In Glasgow | |
| R&J Construction, Inc. | In Glasgow | |
| Real Estate Contractors, Inc. | 5.0★ (4) | In Glasgow |
| RenovationNinjas | In Glasgow | |
| Sayers Painting | 5.0★ (12) | In Glasgow |
| Vale FRP Doors | 4.5★ (2) | 33 mi |
| VIP Drywall & Painting | 4.7★ (65) | In Glasgow |
How much do window installers cost in Glasgow?
Typical prices in USD, adjusted for Delaware 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 Glasgow window installers
We scored 268 Glasgow 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 Glasgow 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 Glasgow: frequently asked questions
Who is the best window installer in Glasgow?
By CR Score, the highest-ranked window installer in Glasgow, DE is Smart Shield Windows with a CR Score of 87/100. It has 5.0★ from 346 Google reviews. It is open 24/7. Renewal by Andersen Window Replacement (#2) and Renewal by Andersen Window Replacement (#3) follow. We ranked 268 window installers on 8 factors, last updated October 22, 2026.
How many window installers are there in Glasgow?
ContractorsRanked ranks 268 window installers serving Glasgow, DE. 1 of them is based in Glasgow; 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 Glasgow are open 24/7?
32 ranked window installers in Glasgow post 24/7 hours. The highest-ranked are Smart Shield Windows (#1), Grimes Glass LLC (#4) and Brandywine Window & Screen (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which window installers in Glasgow work on weekends?
150 of 268 ranked window installers post Saturday hours and 63 post Sunday hours. The highest-ranked open Saturdays are Smart Shield Windows (#1), Renewal by Andersen Window Replacement (#2) and Renewal by Andersen Window Replacement (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does window replacement cost in Glasgow?
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 Delaware. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Glasgow window installers have?
The median Google rating among 268 rated window installers in Glasgow is 4.9★, with a median of 38 reviews. PJ Fitzpatrick has the most, 12,968 reviews, and ranks #7. 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 Glasgow count in this ranking?
Yes, if they are within 40 mi of the Glasgow 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 Glasgow
- October 2026: CR Scores recalculated for 268 window installers serving Glasgow.
More window installers and Glasgow pages
Window installers near Glasgow
- Window installers in Brookside, DE311 ranked
- Window installers in Bear, DE318 ranked
- Window installers in Newark, DE307 ranked
- Window installers in Pike Creek, DE346 ranked
- Window installers in Pike Creek Valley, DE355 ranked
- Window installers in Wilmington Manor, DE388 ranked
- Window installers in New Castle, DE377 ranked
- Window installers in Middletown, DE191 ranked
- Window installers in North Star, DE359 ranked
- Window installers in Elsmere, DE417 ranked
Other trades in Glasgow
- Roofers in Glasgow648 ranked
- Plumbers in Glasgow138 ranked
- Electricians in Glasgow139 ranked
- HVAC contractors in Glasgow189 ranked
- General contractors in Glasgow230 ranked
- Painters in Glasgow121 ranked
- Landscapers in Glasgow154 ranked
- Handymen in Glasgow44 ranked
- Kitchen remodelers in Glasgow122 ranked
- Bathroom remodelers in Glasgow123 ranked
- Flooring contractors in Glasgow105 ranked
- Tile installers in Glasgow34 ranked
- Drywall contractors in Glasgow6 ranked
- Concrete contractors in Glasgow74 ranked
- Fence contractors in Glasgow42 ranked
- Deck builders in Glasgow82 ranked
- Siding contractors in Glasgow317 ranked
- Gutter installers in Glasgow83 ranked
- Insulation contractors in Glasgow23 ranked
- Solar installers in Glasgow61 ranked
- Garage door repair companies in Glasgow20 ranked
- Foundation repair companies in Glasgow88 ranked
- Tree services in Glasgow96 ranked
- Masonry contractors in Glasgow52 ranked
- Water damage restoration companies in Glasgow258 ranked
- Home builders in Glasgow286 ranked
- Demolition contractors in Glasgow13 ranked
- All contractors in Glasgow