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Best Insulation Contractors in Longview, WA (2026)

5 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Longview: Extreme Spray Foam of Longview, CR Score 58/100; 5.0★ from 22 Google reviews.

  2. 2

    Best for emergencies (open 24/7): Service Patriots, posts 24/7 hours; ranked #2 of 5.

  3. 2

    Most-reviewed: Service Patriots, 123 Google reviews at 4.3★, the most of 5 ranked; ranked #2.

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

5 Longview insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7 and 3 open Saturdays, based on posted hours. The median Google rating is 4.9★ across 5 rated businesses.

Top 5 insulation contractors in Longview at a glance

Top 5 insulation contractors in Longview at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Extreme Spray Foam of Longview585.0★ (22)Longview—Overall
2Service Patriots574.3★ (123)Kelso, 2 mi away24/7Emergencies, Most reviews
3Two Brothers Insulating, LLC564.9★ (71)Woodland, 18 mi away——
4Team Projects LLC545.0★ (13)North Portland, 16 mi awaySat · Evenings—
5Insul-Pros Insulation533.7★ (3)Kelso, 3 mi awaySat—

The 5 best insulation contractors in Longview, 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.

  2. #2 Service Patriots

    Based in Kelso, 2 mi away

    57/100CR Score

    Ranked #2 because of its Google rating and review volume: 4.3★ from 123 Google reviews, the most in Longview.

    • 4.3★ from 123 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1358 13th Ave S, Kelso, WA 98626
    View profile for Service Patriots

  4. #4 Team Projects LLC

    Based in North Portland, 16 mi away

    54/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.

    • 5.0★ from 13 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    View profile for Team Projects LLC

How much do insulation contractors cost in Longview?

National price ranges in USD, not adjusted for Longview. Each row names its basis and the month we checked it.

How much do insulation contractors cost in Longview?
JobLowTypicalHighBasisChecked
Attic insulation$1,700$2,100$2,500Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national rangeOctober 2026

How we ranked Longview insulation contractors

We scored 5 Longview insulation contractors 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 Longview 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

Insulation contractors in Longview: frequently asked questions

Who is the best insulation contractor in Longview?

By CR Score, the highest-ranked insulation contractor in Longview, WA is Extreme Spray Foam of Longview with a CR Score of 58/100. It has 5.0★ from 22 Google reviews. Service Patriots (#2) and Two Brothers Insulating, LLC (#3) follow. We ranked 5 insulation contractors on ten factors, last updated October 22, 2026.

How many insulation contractors are there in Longview?

ContractorsRanked ranks 5 insulation contractors serving Longview, WA. 1 of them is based in Longview; the rest serve it from nearby towns. Counts are as of October 2026.

Which insulation contractors in Longview are open 24/7?

1 ranked insulation contractor in Longview posts 24/7 hours. The highest-ranked is Service Patriots (#2). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Longview work on weekends?

3 of 5 ranked insulation contractors post Saturday hours. The highest-ranked open Saturdays are Service Patriots (#2), Team Projects LLC (#4) and Insul-Pros Insulation (#5). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Longview?

Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Longview. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Longview insulation contractors have?

The median Google rating among 5 rated insulation contractors in Longview is 4.9★, with a median of 22 reviews. Service Patriots has the most, 123 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank insulation contractors?

Each insulation contractor 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 insulation contractors outside Longview count in this ranking?

Yes, if they are within 25 mi of the Longview city center, our service radius for insulation contractors. 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 Longview

  1. October 2026: CR Scores recalculated for 5 insulation contractors serving Longview.

More insulation contractors and Longview pages

Other trades in Longview