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Best Insulation Contractors in Oroville, CA (2026)

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

The short answer

  1. 1

    Best overall in Oroville: Royal Aire Solar, Heating, Air & Water, CR Score 56/100; 4.7★ from 718 Google reviews; open 24/7.

  2. 2

    Most-reviewed: EcoGuard Pest Management, 115 Google reviews at 4.9★, the most of 6 ranked after Royal Aire Solar, Heating, Air & Water; ranked #2.

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

6 Oroville insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 3 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.8★ across 6 rated businesses.

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

Top 6 insulation contractors in Oroville at a glance

Top 6 insulation contractors in Oroville at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Royal Aire Solar, Heating, Air & Water564.7★ (718)Chico, 19 mi away24/7Overall
2EcoGuard Pest Management534.9★ (115)Linda, 13 mi awaySat · Sun · EveningsMost reviews
3J M Insulation515.0★ (16)Live Oak, 19 mi away——
4Diaz Insulation494.4★ (19)Chico, 24 mi away——
5Steve Caperello Painting475.0★ (4)Chico, 11 mi awaySat · Sun—
6Tugwell Roofing Co. - Chico Roofing Company424.1★ (14)Chico, 23 mi away——

The 6 best insulation contractors in Oroville, 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.

  3. #3 J M Insulation

    Based in Live Oak, 19 mi away

    51/100CR Score

    Ranked #3 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.

    • 5.0★ from 16 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    2789 Paseo Rd, Live Oak, CA 95953
    View profile for J M Insulation(530) 713-6785

  4. #4 Diaz Insulation

    Based in Chico, 24 mi away

    49/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.4★ from 19 Google reviews, listed on Google as “Insulation contractor”.

    • 4.4★ from 19 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    2961 CA-32 Ste 20, Chico, CA 95973
    View profile for Diaz Insulation(530) 892-2143

How much do insulation contractors cost in Oroville?

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

How much do insulation contractors cost in Oroville?
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 Oroville insulation contractors

We scored 6 Oroville 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 Oroville 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 Oroville: frequently asked questions

Who is the best insulation contractor in Oroville?

By CR Score, the highest-ranked insulation contractor in Oroville, CA is Royal Aire Solar, Heating, Air & Water with a CR Score of 56/100. It has 4.7★ from 718 Google reviews. It is open 24/7. EcoGuard Pest Management (#2) and J M Insulation (#3) follow. We ranked 6 insulation contractors on ten factors, last updated October 22, 2026.

Which insulation contractors in Oroville are open 24/7?

1 ranked insulation contractor in Oroville posts 24/7 hours. The highest-ranked is Royal Aire Solar, Heating, Air & Water (#1). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Oroville work on weekends?

3 of 6 ranked insulation contractors post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Royal Aire Solar, Heating, Air & Water (#1), EcoGuard Pest Management (#2) and Steve Caperello Painting (#5). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Oroville?

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

What Google rating do Oroville insulation contractors have?

The median Google rating among 6 rated insulation contractors in Oroville is 4.8★, with a median of 18 reviews. Royal Aire Solar, Heating, Air & Water has the most, 718 reviews, and ranks #1. 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 Oroville count in this ranking?

Yes, if they are within 25 mi of the Oroville 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.

Can insulation contractors pay to rank higher on ContractorsRanked?

No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.

Update log for Oroville

  1. October 2026: CR Scores recalculated for 6 insulation contractors serving Oroville.

More insulation contractors and Oroville pages

Other trades in Oroville