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ContractorsRanked

Best Solar Installers in Williamstown, NJ (2026)

158 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Williamstown: Glenn Wassmer ~ HD Energy Solutions, CR Score 88/100; 5.0★ from 25 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Surf & Turf Roofing, Solar and Windows, posts 24/7 hours; ranked #2 of 158.

  3. 16

    Most-reviewed: EMT Solar and Roofing, 1,289 Google reviews at 4.9★, the most of 158 ranked; ranked #16.

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

158 Williamstown solar installers are ranked here by CR Score, from 8 published factors. 27 are open 24/7, 97 open Saturdays and 58 open Sundays, based on posted hours. The median Google rating is 4.9★ across 158 rated businesses.

Most of this list also appears on the Solar installers in Vineland ranking. See Solar installers in Vineland

Top 10 solar installers in Williamstown at a glance

Top 10 solar installers in Williamstown at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Glenn Wassmer ~ HD Energy Solutions885.0★ (25)Williamstown24/7Overall
2Surf & Turf Roofing, Solar and Windows874.9★ (272)Bellmawr, 14 mi away24/7Emergencies
3Emmons Roofing & Siding864.7★ (449)Williamstown24/7—
4Solar Savings By Garrett855.0★ (85)Atlantic City, 16 mi awaySat · Sun · Evenings—
5Enersun Solar855.0★ (66)Belleville, 33 mi away24/7—
6GutterDash Guttering Services855.0★ (222)Atco, 12 mi away24/7—
7EcoGen America845.0★ (14)Ashland, 16 mi away24/7—
8Pure Home Renewables844.9★ (72)Bellmawr, 17 mi awaySat · Sun—
9Eclipse Home Solutions844.9★ (94)Atco, 3 mi away24/7—
10Ramere's Solar Cleaning L.L.C845.0★ (72)Cinnaminson, 21 mi awaySat · Sun—

The 158 best solar installers in Williamstown, 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.

  7. #7 EcoGen America

    Based in Ashland, 16 mi away

    84/100CR Score

    Ranked #7 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.

    • 5.0★ from 14 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1101 Kings Hwy N #210, Cherry Hill Township, NJ 08034
    View profile for EcoGen America(888) 294-5764

  8. #8 Pure Home Renewables

    Based in Bellmawr, 17 mi away

    84/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 72 Google reviews, listed on Google as “Solar energy company”.

    • 4.9★ from 72 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat–Sun 10 AM–4 PM
    Address
    1120 NJ-73, Mt Laurel Township, NJ 08054
    View profile for Pure Home Renewables(856) 651-6989

  12. #12 JK Renewables

    Based in Bellmawr, 16 mi away

    83/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.7★ from 62 Google reviews, listed on Google as “Solar energy company”.

    • 4.7★ from 62 Google reviews
    Hours
    Mon–Sun 8 AM–8 PM
    Address
    800 Kings Hwy N suite-150, Cherry Hill Township, NJ 08034
    View profile for JK Renewables(888) 429-0105

  13. #13 Finray Solar

    Based in Ardmore, 25 mi away

    83/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.9★ from 601 Google reviews, listed on Google as “Solar energy company”.

    • 4.9★ from 601 Google reviews
    Hours
    Mon–Fri 9:30 AM–5 PM · Sat 9:30 AM–1 PM · Sun closed
    Address
    29 Bala Ave, Bala Cynwyd, PA 19004
    View profile for Finray Solar(484) 434-8179

  14. #14 Solar Energy World

    Based in Pennsauken, 20 mi away

    83/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 485 Google reviews, listed on Google as “Solar energy company”.

    • 4.8★ from 485 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 10 AM–3 PM · Sun closed
    Address
    7930 National Hwy #201, Pennsauken, NJ 08110
    View profile for Solar Energy World(866) 856-4580

  15. #15 Seapoint Solar Energy LLC

    Based in Runnemede, 13 mi away

    83/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 105 Google reviews, listed on Google as “Solar energy company”.

    • 4.9★ from 105 Google reviews
    Hours
    Mon–Thu 8 AM–8 PM · Fri 8 AM–6 PM · Sat 10 AM–4 PM · Sun closed
    Address
    170 E 9th Ave, Runnemede, NJ 08078
    View profile for Seapoint Solar Energy LLC(856) 803-5029

  16. #16 EMT Solar and Roofing

    Based in Camden, 17 mi away

    83/100CR Score

    Ranked #16 because of its Google rating and review volume: 4.9★ from 1,289 Google reviews, the most Google reviews on this list (1,289).

    • 4.9★ from 1,289 Google reviews
    Hours
    Mon–Thu 8 AM–4:30 PM · Fri 8 AM–4 PM · Sat–Sun closed
    Address
    523 Hollywood Ave 3rd floor, Cherry Hill Township, NJ 08002
    View profile for EMT Solar and Roofing(866) 264-3065

  17. #17 SunLife Solar

    Based in Wilmington, 31 mi away

    82/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.8★ from 123 Google reviews, listed on Google as “Solar energy company”.

    • 4.8★ from 123 Google reviews
    Hours
    Mon–Sun 8 AM–10 PM
    Address
    3 Germay Dr Unit 4-1478, Wilmington, DE 19804
    View profile for SunLife Solar(833) 478-6669

  21. #21 PvGuys

    Based in Camden, 22 mi away

    82/100CR Score

    Ranked #21 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.

    • 5.0★ from 5 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for PvGuys(856) 510-4428

  22. #22 Rise Solar

    Based in Keansburg, 30 mi away

    82/100CR Score

    Ranked #22 because of its Google rating and availability: 4.7★ from 14 Google reviews, open 24/7.

    • 4.7★ from 14 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Rise Solar(732) 242-4102

  24. #24 Zenergy Solar

    Based in Wilmington, 31 mi away

    81/100CR Score

    Ranked #24 because of its Google rating and availability: 5.0★ from 61 Google reviews, open 24/7.

    • 5.0★ from 61 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    520 Robinson Ln, Wilmington, DE 19805
    View profile for Zenergy Solar(888) 765-2760

  25. #25 The Solar Guy

    Based in Levittown, 30 mi away

    81/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Solar energy system service”.

    • 5.0★ from 40 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for The Solar Guy(609) 802-6403

How much do solar installers cost in Williamstown?

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

How much do solar installers cost in Williamstown?
JobLowTypicalHighBasisChecked
Solar panel installation$33,090$37,430$40,720Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.20 Middle Atlantic factor (2025 Cost vs. Value Report)October 2026

How we ranked Williamstown solar installers

We scored 158 Williamstown solar 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 Williamstown 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

Solar installers in Williamstown: frequently asked questions

Who is the best solar installer in Williamstown?

By CR Score, the highest-ranked solar installer in Williamstown, NJ is Glenn Wassmer ~ HD Energy Solutions with a CR Score of 88/100. It has 5.0★ from 25 Google reviews. It is open 24/7. Surf & Turf Roofing, Solar and Windows (#2) and Emmons Roofing & Siding (#3) follow. We ranked 158 solar installers on 8 factors, last updated October 22, 2026.

How many solar installers are there in Williamstown?

ContractorsRanked ranks 158 solar installers serving Williamstown, NJ. 2 of them are based in Williamstown; the rest serve it from nearby towns. Counts are as of October 2026.

Which solar installers in Williamstown are open 24/7?

27 ranked solar installers in Williamstown post 24/7 hours. The highest-ranked are Glenn Wassmer ~ HD Energy Solutions (#1), Surf & Turf Roofing, Solar and Windows (#2) and Emmons Roofing & Siding (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which solar installers in Williamstown work on weekends?

97 of 158 ranked solar installers post Saturday hours and 58 post Sunday hours. The highest-ranked open Saturdays are Glenn Wassmer ~ HD Energy Solutions (#1), Surf & Turf Roofing, Solar and Windows (#2) and Emmons Roofing & Siding (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does solar panel installation cost in Williamstown?

Solar panel installation typically costs $33,090 to $40,720, with $37,430 typical (Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.20 Middle Atlantic factor (2025 Cost vs. Value Report)). The range is adjusted for New Jersey. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Williamstown solar installers have?

The median Google rating among 158 rated solar installers in Williamstown is 4.9★, with a median of 23 reviews. EMT Solar and Roofing has the most, 1,289 reviews, and ranks #16. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank solar installers?

Each solar 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 solar installers outside Williamstown count in this ranking?

Yes, if they are within 40 mi of the Williamstown city center, our service radius for solar 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 Williamstown

  1. October 2026: CR Scores recalculated for 158 solar installers serving Williamstown.
  2. October 2026: 1 duplicate listing merged.

More solar installers and Williamstown pages

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