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ContractorsRanked

Best Insulation Contractors in Cary, NC (2026)

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

The short answer

  1. 1

    Best overall in Cary: Service Experts Heating & Air Conditioning, CR Score 86/100; 4.9★ from 5,915 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): C&M Crawlspace Solutions, posts 24/7 hours; ranked #3 of 67.

  3. 4

    Most-reviewed: Michael & Son Services, 13,263 Google reviews at 4.8★, the most of 67 ranked; ranked #4.

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

67 Cary insulation contractors are ranked here by CR Score, from 8 published factors. 7 are open 24/7, 32 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.9★ across 67 rated businesses.

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

Top 10 insulation contractors in Cary at a glance

Top 10 insulation contractors in Cary at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Service Experts Heating & Air Conditioning864.9★ (5,915)Raleigh, 8 mi away24/7Overall
2Crawlspaces & Beyond LLC865.0★ (90)CarySat · Sun—
3C&M Crawlspace Solutions865.0★ (24)Apex, 5 mi away24/7Emergencies
4Michael & Son Services864.8★ (13,263)Raleigh, 11 mi away24/7Most reviews
5United Contractors of NC, Inc.844.9★ (54)Apex, 3 mi awaySat · Sun—
6EcoMaster Insulation Contractors and Home Performance Experts834.7★ (24)Raleigh, 12 mi away24/7—
7Air Specialists Heating & Cooling834.9★ (129)Apex, 1 mi away24/7—
8Crawlspace Renovations LLC835.0★ (93)CarySat—
9Prime Energy Group824.6★ (31)Apex, 4 mi awaySat · Sun—
10Insulation Commandos of Raleigh-Durham825.0★ (47)Fuquay-Varina, 14 mi awaySat · Sun · Evenings—

The 67 best insulation contractors in Cary, 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.

  12. #12 NC FOAM PROS

    Based in Cary

    81/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Insulation contractor”.

    • 4.9★ from 70 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 11 AM–2 PM · Sun closed
    Address
    426 S Cross St, Youngsville, NC 27596
    View profile for NC FOAM PROS(919) 946-1965

  13. #13 Premier Insulation Inc

    Based in Durham, 16 mi away

    80/100CR Score

    Ranked #13 because of its Google rating and availability: 4.7★ from 3 Google reviews, open 24/7.

    • 4.7★ from 3 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2131 E Geer St, Durham, NC 27704
    View profile for Premier Insulation Inc

  22. #22 RCS

    Based in Raleigh, 8 mi away

    78/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.8★ from 29 Google reviews, listed on Google as “Insulation contractor”.

    • 4.8★ from 29 Google reviews
    Hours
    Mon–Sat 9 AM–5 PM · Sun closed
    Address
    3004 Dunkirk Dr, Raleigh, NC 27613
    View profile for RCS(919) 685-6387

How much do insulation contractors cost in Cary?

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

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

We scored 67 Cary 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 Cary 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 Cary: frequently asked questions

Who is the best insulation contractor in Cary?

By CR Score, the highest-ranked insulation contractor in Cary, NC is Service Experts Heating & Air Conditioning with a CR Score of 86/100. It has 4.9★ from 5,915 Google reviews. It is open 24/7. Crawlspaces & Beyond LLC (#2) and C&M Crawlspace Solutions (#3) follow. We ranked 67 insulation contractors on 8 factors, last updated October 22, 2026.

How many insulation contractors are there in Cary?

ContractorsRanked ranks 67 insulation contractors serving Cary, NC. 7 of them are based in Cary; the rest serve it from nearby towns. Counts are as of October 2026.

Which insulation contractors in Cary are open 24/7?

7 ranked insulation contractors in Cary post 24/7 hours. The highest-ranked are Service Experts Heating & Air Conditioning (#1), C&M Crawlspace Solutions (#3) and Michael & Son Services (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Cary work on weekends?

32 of 67 ranked insulation contractors post Saturday hours and 13 post Sunday hours. The highest-ranked open Saturdays are Service Experts Heating & Air Conditioning (#1), Crawlspaces & Beyond LLC (#2) and C&M Crawlspace Solutions (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Cary?

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

What Google rating do Cary insulation contractors have?

The median Google rating among 67 rated insulation contractors in Cary is 4.9★, with a median of 43 reviews. Michael & Son Services has the most, 13,263 reviews, and ranks #4. 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 Cary count in this ranking?

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

  1. October 2026: CR Scores recalculated for 67 insulation contractors serving Cary.

More insulation contractors and Cary pages

Other trades in Cary