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Best Window Installers in New Castle, DE (2026)

377 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in New Castle: Smart Shield Windows, CR Score 88/100; 5.0★ from 346 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Window Nation, posts 24/7 hours; ranked #2 of 377.

  3. 5

    Most-reviewed: PJ Fitzpatrick, 12,968 Google reviews at 4.8★, the most of 377 ranked; ranked #5.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

377 New Castle window installers are ranked here by CR Score, from 8 published factors. 47 are open 24/7, 231 open Saturdays and 101 open Sundays, based on posted hours. The median Google rating is 4.9★ across 377 rated businesses.

Most of this list also appears on the Window installers in Wilmington ranking. See Window installers in Wilmington

Top 10 window installers in New Castle at a glance

Top 10 window installers in New Castle at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Smart Shield Windows885.0★ (346)Camden, 21 mi away24/7Overall
2Window Nation874.7★ (4,668)Pennsauken, 36 mi away24/7Emergencies
3Renewal by Andersen Window Replacement874.9★ (5,896)King of Prussia, 32 mi awaySat · Sun · Evenings—
4Hargrave Contractors, LLC865.0★ (75)Glassboro, 18 mi away24/7—
5PJ Fitzpatrick864.8★ (12,968)New CastleSat · Sun · EveningsMost reviews
6Brandywine Window & Screen855.0★ (21)Edgemoor, 9 mi away24/7—
7Renewal by Andersen Window Replacement854.9★ (193)Newark, 10 mi awaySat · Sun · Evenings—
81st Class Glass LLC854.7★ (18)Wilmington, 5 mi away24/7—
9G. Fedale Roofing and Siding854.8★ (718)New Castle24/7—
10Grimes Glass LLC845.0★ (101)Aberdeen, 36 mi away24/7—

The 377 best window installers in New Castle, 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.

  2. #2 Window Nation

    Based in Pennsauken, 36 mi away

    87/100CR Score

    Ranked #2 because of its Google rating and availability: 4.7★ from 4,668 Google reviews, open 24/7.

    • 4.7★ from 4,668 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9256 Commerce Hwy, Pennsauken, NJ 08110
    View profile for Window Nation(856) 566-7200

  5. #5 PJ Fitzpatrick

    Based in New Castle

    86/100CR Score

    Ranked #5 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
    View profile for PJ Fitzpatrick(866) 858-5928

  21. #21 The Window Place Plus

    Based in Collingswood, 32 mi away

    81/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 141 Google reviews, listed on Google as “Window installation service”.

    • 4.9★ from 141 Google reviews
    Hours
    Mon–Fri 9 AM–9 PM · Sat 9 AM–8 PM · Sun 9 AM–7 PM
    Address
    900 Haddon Ave, Collingswood, NJ 08108
    View profile for The Window Place Plus(856) 216-1888

  23. #23 Castle Windows

    Based in Haddonfield, 38 mi away

    81/100CR Score

    Ranked #23 because of its Google rating and availability: 4.2★ from 1,496 Google reviews, open 24/7.

    • 4.2★ from 1,496 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    109 Gaither Dr, Mt Laurel Township, NJ 08054
    View profile for Castle Windows(800) 360-4400

  25. #25 Ameritech Services

    Based in Carneys Point, 19 mi away

    81/100CR Score

    Ranked #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
    View profile for Ameritech Services(856) 418-1029

How much do window installers cost in New Castle?

Typical prices in USD, adjusted for Delaware with a published regional index. Each row names its basis and month.

How much do window installers cost in New Castle?
JobLowTypicalHighBasisChecked
Window replacement$3,370$7,200$11,600Per 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 New Castle window installers

We scored 377 New Castle 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn New Castle data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Window installers in New Castle: frequently asked questions

Who is the best window installer in New Castle?

By CR Score, the highest-ranked window installer in New Castle, DE is Smart Shield Windows with a CR Score of 88/100. It has 5.0★ from 346 Google reviews. It is open 24/7. Window Nation (#2) and Renewal by Andersen Window Replacement (#3) follow. We ranked 377 window installers on 8 factors, last updated October 22, 2026.

How many window installers are there in New Castle?

ContractorsRanked ranks 377 window installers serving New Castle, DE. 3 of them are based in New Castle; the rest serve it from nearby towns. Counts are as of October 2026.

Which window installers in New Castle are open 24/7?

47 ranked window installers in New Castle post 24/7 hours. The highest-ranked are Smart Shield Windows (#1), Window Nation (#2) and Hargrave Contractors, LLC (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which window installers in New Castle work on weekends?

231 of 377 ranked window installers post Saturday hours and 101 post Sunday hours. The highest-ranked open Saturdays are Smart Shield Windows (#1), Window Nation (#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 New Castle?

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 New Castle window installers have?

The median Google rating among 377 rated window installers in New Castle is 4.9★, with a median of 35 reviews. PJ Fitzpatrick has the most, 12,968 reviews, and ranks #5. 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 New Castle count in this ranking?

Yes, if they are within 40 mi of the New Castle 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 New Castle

  1. October 2026: CR Scores recalculated for 377 window installers serving New Castle.

More window installers and New Castle pages

Other trades in New Castle