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Best Insulation Contractors in Marina, 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 Marina: Sanden Insulation, CR Score 58/100; 5.0★ from 13 Google reviews.

  2. 3

    Best for emergencies (open 24/7): Reactic Restoration, posts 24/7 hours; ranked #3 of 6.

  3. 3

    Most-reviewed: Reactic Restoration, 13 Google reviews at 5.0★, tied for the most of 6 ranked; ranked #3.

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

6 Marina insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 5.0★ across 6 rated businesses.

Top 6 insulation contractors in Marina at a glance

Top 6 insulation contractors in Marina at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Sanden Insulation585.0★ (13)Watsonville, 18 mi away—Overall
2Ponzini Insulation Inc584.6★ (12)Prunedale, 18 mi away——
3Reactic Restoration565.0★ (13)Santa Cruz, 24 mi away24/7Emergencies, Most reviews
4Davi Plastering Inc543.7★ (3)Monterey, 8 mi away——
5JC Insulation & Acustical Inc535.0★ (3)Prunedale, 10 mi awaySat—
6Ed's Tile & Shingle Roof Cleaning485.0★ (6)Prunedale, 19 mi away——

The 6 best insulation contractors in Marina, 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 Marina

    #1 Sanden Insulation

    Based in Watsonville, 18 mi away

    58/100CR Score

    Ranked #1 because of its Google rating and review volume: 5.0★ from 13 Google reviews, the most in Marina.

    • 5.0★ from 13 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    162 Mar Monte Ave, Watsonville, CA 95076
    View profile for Sanden Insulation(831) 708-2713

  2. #2 Ponzini Insulation Inc

    Based in Prunedale, 18 mi away

    58/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.6★ from 12 Google reviews, listed on Google as “Insulation contractor”.

    • 4.6★ from 12 Google reviews
    Hours
    Mon–Fri 6 AM–4 PM · Sat–Sun closed
    Address
    318 Third St, San Juan Bautista, CA 95045
    View profile for Ponzini Insulation Inc(831) 623-2212

  4. #4 Davi Plastering Inc

    Based in Monterey, 8 mi away

    54/100CR Score

    Ranked #4 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.

    • 3.7★ from 3 Google reviews
    Hours
    Mon–Fri 7 AM–4 PM · Sat–Sun closed
    Address
    1027 Roosevelt St, Monterey, CA 93940
    View profile for Davi Plastering Inc(831) 646-0634

How much do insulation contractors cost in Marina?

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

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

We scored 6 Marina 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 Marina 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 Marina: frequently asked questions

Who is the best insulation contractor in Marina?

By CR Score, the highest-ranked insulation contractor in Marina, CA is Sanden Insulation with a CR Score of 58/100. It has 5.0★ from 13 Google reviews. Ponzini Insulation Inc (#2) and Reactic Restoration (#3) follow. We ranked 6 insulation contractors on ten factors, last updated October 22, 2026.

Which insulation contractors in Marina are open 24/7?

1 ranked insulation contractor in Marina posts 24/7 hours. The highest-ranked is Reactic Restoration (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Marina work on weekends?

2 of 6 ranked insulation contractors post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Reactic Restoration (#3) and JC Insulation & Acustical Inc (#5). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Marina?

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

What Google rating do Marina insulation contractors have?

The median Google rating among 6 rated insulation contractors in Marina is 5.0★, with a median of 9 reviews. Sanden Insulation has the most, 13 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 Marina count in this ranking?

Yes, if they are within 25 mi of the Marina 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 Marina

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

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