66 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Durham: Premier Insulation Inc, CR Score 84/100; 4.7★ from 3 Google reviews; open 24/7.
Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #2 of 66.
Most-reviewed: Michael & Son Services, 13,263 Google reviews at 4.8★, the most of 66 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
66 Durham insulation contractors are ranked here by CR Score, from 8 published factors. 7 are open 24/7, 31 open Saturdays and 15 open Sundays, based on posted hours. The median Google rating is 4.8★ across 66 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Premier Insulation Inc | 84 | 4.7★ (3) | Durham | 24/7 | Overall |
| 2 | Michael & Son Services | 84 | 4.8★ (13,263) | Raleigh, 20 mi away | 24/7 | Emergencies, Most reviews |
| 3 | C&M Crawlspace Solutions | 83 | 5.0★ (24) | Apex, 18 mi away | 24/7 | — |
| 4 | Service Experts Heating & Air Conditioning | 83 | 4.9★ (5,915) | Raleigh, 22 mi away | 24/7 | — |
| 5 | Crawlspaces & Beyond LLC | 82 | 5.0★ (90) | Cary, 16 mi away | Sat · Sun | — |
| 6 | United Contractors of NC, Inc. | 82 | 4.9★ (54) | Apex, 12 mi away | Sat · Sun | — |
| 7 | EcoMaster Insulation Contractors and Home Performance Experts | 81 | 4.7★ (24) | Raleigh, 22 mi away | 24/7 | — |
| 8 | Home Performance NC, Inc. | 80 | 4.8★ (6) | Durham | — | — |
| 9 | Crawlspace Renovations LLC | 80 | 5.0★ (93) | Cary, 12 mi away | Sat | — |
| 10 | Capital City Foam | 79 | 3.7★ (7) | Durham | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 4.7★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 20 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 13,263 Google reviews, the most Google reviews on this list (13,263).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apex, 18 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 24 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 22 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 5,915 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cary, 16 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apex, 12 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 22 mi away
Ranked #7 because of its Google rating and availability: 4.7★ from 24 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Durham
Ranked #8 because of its Google rating and trade focus: 4.8★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Cary, 12 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Durham
Ranked #10 because of its Google rating and trade focus: 3.7★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apex, 14 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 129 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apex, 16 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Durham
Ranked #13 because of its Google rating and trade focus: 4.3★ from 95 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Durham
Ranked #14 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apex, 10 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 189 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chapel Hill, 9 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hillsborough, 12 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 259 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Durham
Ranked #18 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 14 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 20 mi away
Ranked #20 because of its Google rating and availability: 4.9★ from 317 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 25 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 68 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Apex, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Raleigh, 25 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 114 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cary, 22 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Durham
Ranked #25 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 66 ranked insulation contractors here; the rest are on their profiles.
20 more insulation contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A & E Heating & Air Conditioning Inc | 4.7★ (233) | In Durham |
| A&D Drywall Painting | 5.0★ (2) | In Durham |
| A2z Contractors | 5.0★ (14) | In Durham |
| ABC Supply Co. Inc. | 4.4★ (85) | In Durham |
| ACR Supply Distribution Center | 3.7★ (9) | In Durham |
| AmTech Construction LLC | 3.9★ (7) | In Durham |
| Cimarron Homes | 3.1★ (13) | In Durham |
| Cusuco Crawlspace | 5.0★ (29) | In Durham |
| Durham Insulation Inc | In Durham | |
| G & V Spray Foam Inc. | In Durham | |
| G/O Insulation | 5.0★ (1) | In Durham |
| Home Outlet | 4.1★ (107) | In Durham |
| Hughes | 5.0★ (17) | In Durham |
| LIfespan Insulation | In Durham | |
| O'Quinn Drywall LLC | In Durham | |
| Ortega Insulation Water Prfng | In Durham | |
| RC Insulation Company | In Durham | |
| Romero Insulation Services LLC | In Durham | |
| SKK Electric LLC | 4.9★ (145) | In Durham |
| Triangle Insulation Services Inc | 5.0★ (2) | In Durham |
National price ranges in USD, not adjusted for Durham. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | $1,700 | $2,100 | $2,500 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range | October 2026 |
We scored 66 Durham 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.
| Factor | Weight | Computed from | In Durham data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |