Skip to content
ContractorsRanked

Best Insulation Contractors in Cottage Grove, OR (2026)

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

The short answer

  1. 1

    Best overall in Cottage Grove: Premier Spray Foam Co, CR Score 82/100; 4.9★ from 34 Google reviews; open 7 days a week.

  2. 4

    Best for emergencies (open 24/7): All Purpose Painting & More, posts 24/7 hours; ranked #4 of 9.

  3. 2

    Most-reviewed: Josh Lowe's Dr. Energy Saver, 302 Google reviews at 4.8★, the most of 9 ranked; ranked #2.

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

9 Cottage Grove insulation contractors are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 3 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.6★ across 9 rated businesses.

Most of this list also appears on the Insulation contractors in Eugene ranking. See Insulation contractors in Eugene

Top 9 insulation contractors in Cottage Grove at a glance

Top 9 insulation contractors in Cottage Grove at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Premier Spray Foam Co824.9★ (34)Eugene, 18 mi awaySat · SunOverall
2Josh Lowe's Dr. Energy Saver804.8★ (302)Eugene, 19 mi away—Most reviews
3Insul 8773.6★ (14)Springfield, 19 mi awaySat · Sun—
4All Purpose Painting & More765.0★ (17)Eugene, 21 mi away24/7Emergencies
5Western Partitions, Inc.724.4★ (20)Eugene, 19 mi away——
6Klaus Roofing Systems of Oregon714.8★ (151)Eugene, 20 mi away——
7Distribution International684.5★ (4)Eugene, 21 mi away——
8Home Insulation Co673.2★ (32)Eugene, 21 mi away——
9PRESTON'S PAINTING644.6★ (8)Springfield, 19 mi away——

The 9 best insulation contractors in Cottage Grove, 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.

  1. Ranked #1 in Cottage Grove

    #1 Premier Spray Foam Co

    Based in Eugene, 18 mi away

    82/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Insulation contractor”.

    • 4.9★ from 34 Google reviews
    Hours
    Mon–Sun 7 AM–5 PM
    Address
    1035 Conger St Unit #5, Eugene, OR 97402
    View profile for Premier Spray Foam Co(541) 502-3403

  3. #3 Insul 8

    Based in Springfield, 19 mi away

    77/100CR Score

    Ranked #3 because of its Google rating and trade focus: 3.6★ from 14 Google reviews, listed on Google as “Insulation contractor”.

    • 3.6★ from 14 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun 2 PM–5 PM
    Address
    5250 High Banks Rd, Springfield, OR 97478
    View profile for Insul 8(541) 747-1586

  8. #8 Home Insulation Co

    Based in Eugene, 21 mi away

    67/100CR Score

    Ranked #8 because of its Google rating and trade focus: 3.2★ from 32 Google reviews, listed on Google as “Insulation contractor”.

    • 3.2★ from 32 Google reviews
    Hours
    Mon–Fri 7 AM–3:30 PM · Sat–Sun closed
    Address
    2450 State Hwy 99 N, Eugene, OR 97402
    View profile for Home Insulation Co(541) 484-1733

How much do insulation contractors cost in Cottage Grove?

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

How much do insulation contractors cost in Cottage Grove?
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 Cottage Grove insulation contractors

We scored 9 Cottage Grove insulation contractors 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 Cottage Grove 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

Insulation contractors in Cottage Grove: frequently asked questions

Who is the best insulation contractor in Cottage Grove?

By CR Score, the highest-ranked insulation contractor in Cottage Grove, OR is Premier Spray Foam Co with a CR Score of 82/100. It has 4.9★ from 34 Google reviews. It is open 7 days a week. Josh Lowe's Dr. Energy Saver (#2) and Insul 8 (#3) follow. We ranked 9 insulation contractors on 8 factors, last updated October 22, 2026.

How many insulation contractors are there in Cottage Grove?

ContractorsRanked ranks 9 insulation contractors serving Cottage Grove, OR. Counts are as of October 2026.

Which insulation contractors in Cottage Grove are open 24/7?

1 ranked insulation contractor in Cottage Grove posts 24/7 hours. The highest-ranked is All Purpose Painting & More (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Cottage Grove work on weekends?

3 of 9 ranked insulation contractors post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Premier Spray Foam Co (#1), Insul 8 (#3) and All Purpose Painting & More (#4). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Cottage Grove?

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 Cottage Grove. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Cottage Grove insulation contractors have?

The median Google rating among 9 rated insulation contractors in Cottage Grove is 4.6★, with a median of 20 reviews. Josh Lowe's Dr. Energy Saver has the most, 302 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 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 insulation contractors outside Cottage Grove count in this ranking?

Yes, if they are within 25 mi of the Cottage Grove 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 Cottage Grove

  1. October 2026: CR Scores recalculated for 9 insulation contractors serving Cottage Grove.
  2. October 2026: 1 duplicate listing merged.

More insulation contractors and Cottage Grove pages

Other trades in Cottage Grove