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ContractorsRanked

Best Insulation Contractors in Communications Hill, CA (2026)

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

The short answer

  1. 1

    Best overall in Communications Hill: Attic Pros, CR Score 89/100; 4.7★ from 104 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Service Champions, posts 24/7 hours; ranked #2 of 65.

  3. 2

    Most-reviewed: Service Champions, 3,407 Google reviews at 4.9★, the most of 65 ranked; ranked #2.

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

65 Communications Hill insulation contractors are ranked here by CR Score, from 8 published factors. 22 are open 24/7, 42 open Saturdays and 41 open Sundays, based on posted hours. The median Google rating is 5.0★ across 65 rated businesses.

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

Top 10 insulation contractors in Communications Hill at a glance

Top 10 insulation contractors in Communications Hill at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Attic Pros894.7★ (104)San Jose, 1 mi away24/7Overall
2Service Champions884.9★ (3,407)San Jose, 8 mi away24/7Emergencies, Most reviews
3Los Gatos Top Insulation874.9★ (86)Los Gatos, 9 mi away24/7—
4TRIO Heating, Air & Plumbing864.9★ (1,142)San Jose, 6 mi away24/7—
5911 Attic Insulation865.0★ (19)Fremont, 8 mi away24/7—
6Attic Masters Insulation Services855.0★ (7)Canoga Park, 1 mi away24/7—
7Attic City San Jose844.6★ (14)San Jose, 4 mi away24/7—
8Everlast Attic845.0★ (7)San Jose, 3 mi away24/7—
9Los Gatos Roofing834.8★ (291)San Jose, 6 mi away24/7—
10Newhaus Roofing & Construction834.9★ (148)San Jose, 5 mi away24/7—

The 65 best insulation contractors in Communications Hill, 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 Communications Hill

    #1 Attic Pros

    Based in San Jose, 1 mi away

    89/100CR Score

    Ranked #1 because of its Google rating and availability: 4.7★ from 104 Google reviews, open 24/7.

    • 4.7★ from 104 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3071 Monterey Rd suit b, San Jose, CA 95111
    View profile for Attic Pros(800) 543-0382

  2. #2 Service Champions

    Based in San Jose, 8 mi away

    88/100CR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 3,407 Google reviews, the most Google reviews on this list (3,407).

    • 4.9★ from 3,407 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2161 Del Franco St, San Jose, CA 95131
    View profile for Service Champions(408) 549-7376

  8. #8 Everlast Attic

    Based in San Jose, 3 mi away

    84/100CR Score

    Ranked #8 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.

    • 5.0★ from 7 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1567 Alta Glen Dr suit 2, San Jose, CA 95125
    View profile for Everlast Attic(408) 981-5346

  18. #18 Attic Star

    Based in Redwood City, 23 mi away

    82/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Insulation contractor”.

    • 4.9★ from 156 Google reviews
    Hours
    Mon–Thu 7 AM–7:30 PM · Fri 7 AM–6 PM · Sat–Sun 7 AM–7:30 PM
    Address
    2847 Middlefield Rd, Redwood City, CA 94063
    View profile for Attic Star(800) 444-8180

  20. #20 Attic Elite

    Based in Newark, 20 mi away

    81/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.9★ from 474 Google reviews, listed on Google as “Insulation contractor”.

    • 4.9★ from 474 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat closed · Sun 8 AM–6 PM
    Address
    37310 Cedar Blvd Suite H, Newark, CA 94560
    View profile for Attic Elite(888) 805-8848

  22. #22 Trap Guard

    Based in Redwood Shores, 19 mi away

    81/100CR Score

    Ranked #22 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.

    • 5.0★ from 13 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Trap Guard(669) 302-8041

  23. #23 Attic Repair Guys

    Based in Fremont, 15 mi away

    81/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.

    • 5.0★ from 23 Google reviews
    Hours
    Mon–Sat 8 AM–5 PM · Sun 9 AM–2 PM
    Address
    3051 Quantum Dr #2411, Fremont, CA 94538
    View profile for Attic Repair Guys(415) 737-9844

  25. #25 Attic Team

    Based in San Jose, 6 mi away

    80/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Insulation contractor”.

    • 5.0★ from 27 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat closed · Sun 11 AM–6 PM
    Address
    2175 The Alameda #209, San Jose, CA 95126
    View profile for Attic Team(408) 750-9546

How much do insulation contractors cost in Communications Hill?

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

How much do insulation contractors cost in Communications Hill?
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 Communications Hill insulation contractors

We scored 65 Communications Hill 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 Communications Hill 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 Communications Hill: frequently asked questions

Who is the best insulation contractor in Communications Hill?

By CR Score, the highest-ranked insulation contractor in Communications Hill, CA is Attic Pros with a CR Score of 89/100. It has 4.7★ from 104 Google reviews. It is open 24/7. Service Champions (#2) and Los Gatos Top Insulation (#3) follow. We ranked 65 insulation contractors on 8 factors, last updated October 22, 2026.

How many insulation contractors are there in Communications Hill?

ContractorsRanked ranks 65 insulation contractors serving Communications Hill, CA. Counts are as of October 2026.

Which insulation contractors in Communications Hill are open 24/7?

22 ranked insulation contractors in Communications Hill post 24/7 hours. The highest-ranked are Attic Pros (#1), Service Champions (#2) and Los Gatos Top Insulation (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Communications Hill work on weekends?

42 of 65 ranked insulation contractors post Saturday hours and 41 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Service Champions (#2) and Los Gatos Top Insulation (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Communications Hill?

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

What Google rating do Communications Hill insulation contractors have?

The median Google rating among 65 rated insulation contractors in Communications Hill is 5.0★, with a median of 16 reviews. Service Champions has the most, 3,407 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 Communications Hill count in this ranking?

Yes, if they are within 25 mi of the Communications Hill 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 Communications Hill

  1. October 2026: CR Scores recalculated for 65 insulation contractors serving Communications Hill.

More insulation contractors and Communications Hill pages

Other trades in Communications Hill