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Best Solar Installers in Decatur, AL (2026)

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

The short answer

  1. 1

    Best overall in Decatur: First Solar, Inc., CR Score 61/100; 3.1★ from 52 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Express Roofing and Solar of Decatur, posts 24/7 hours; ranked #2 of 5.

  3. 3

    Most-reviewed: Roof Rescue, 32 Google reviews at 4.6★, the most of 5 ranked after First Solar, Inc.; ranked #3.

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

5 Decatur solar installers are ranked here by CR Score, from ten published factors. 3 are open 24/7, 3 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.2★ across 5 rated businesses.

Top 5 solar installers in Decatur at a glance

Top 5 solar installers in Decatur at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1First Solar, Inc.613.1★ (52)Decatur24/7Overall
2Express Roofing and Solar of Decatur554.8★ (6)Decatur24/7Emergencies
3Roof Rescue534.6★ (32)Tallahassee, 27 mi away24/7Most reviews
4Solar Technology Alabama534.2★ (20)Cullman, 21 mi away——
5Southern Solar Systems, Inc.494.0★ (5)Huntsville, 24 mi away——

The 5 best solar installers in Decatur, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Decatur

    #1 First Solar, Inc.

    Based in Decatur

    61/100CR Score

    Ranked #1 because of its Google rating and review volume: 3.1★ from 52 Google reviews, the most in Decatur.

    • 3.1★ from 52 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1 First Solar Way, Trinity, AL 35673
    View profile for First Solar, Inc.

How much do solar installers cost in Decatur?

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

How much do solar installers cost in Decatur?
JobLowTypicalHighBasisChecked
Solar panel installation$23,510$26,600$28,930Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.85 East South Central factor (2025 Cost vs. Value Report)October 2026

How we ranked Decatur solar installers

We scored 5 Decatur solar installers on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Decatur data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Solar installers in Decatur: frequently asked questions

Who is the best solar installer in Decatur?

By CR Score, the highest-ranked solar installer in Decatur, AL is First Solar, Inc. with a CR Score of 61/100. It has 3.1★ from 52 Google reviews. It is open 24/7. Express Roofing and Solar of Decatur (#2) and Roof Rescue (#3) follow. We ranked 5 solar installers on ten factors, last updated October 22, 2026.

How many solar installers are there in Decatur?

ContractorsRanked ranks 5 solar installers serving Decatur, AL. 2 of them are based in Decatur; the rest serve it from nearby towns. Counts are as of October 2026.

Which solar installers in Decatur are open 24/7?

3 ranked solar installers in Decatur post 24/7 hours. The highest-ranked are First Solar, Inc. (#1), Express Roofing and Solar of Decatur (#2) and Roof Rescue (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which solar installers in Decatur work on weekends?

3 of 5 ranked solar installers post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are First Solar, Inc. (#1), Express Roofing and Solar of Decatur (#2) and Roof Rescue (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does solar panel installation cost in Decatur?

Solar panel installation typically costs $23,510 to $28,930, with $26,600 typical (Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.85 East South Central factor (2025 Cost vs. Value Report)). The range is adjusted for Alabama. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Decatur solar installers have?

The median Google rating among 5 rated solar installers in Decatur is 4.2★, with a median of 20 reviews. First Solar, Inc. has the most, 52 reviews, and ranks #1. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do solar installers outside Decatur count in this ranking?

Yes, if they are within 40 mi of the Decatur 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 Decatur

  1. October 2026: CR Scores recalculated for 5 solar installers serving Decatur.

More solar installers and Decatur pages

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