62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 6,317 Google reviews, the most in Charleston.
- 4.9★ from 6,317 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1952 Belgrade Ave, Charleston, SC 29407
Best Insulation Contractors in Charleston, SC (2026)
42 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Charleston: Pardee Service Experts, CR Score 62/100; 4.9★ from 6,317 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Affordable Spray Foam, posts 24/7 hours; ranked #3 of 42.
- 7
Most-reviewed: R&E Home Solutions, 790 Google reviews at 4.9★, the most of 42 ranked after Pardee Service Experts; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
42 Charleston insulation contractors are ranked here by CR Score, from ten published factors. 5 are open 24/7, 21 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.8★ across 42 rated businesses.
Top 10 insulation contractors in Charleston at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Pardee Service Experts | 62 | 4.9★ (6,317) | Charleston | 24/7 | Overall |
| 2 | Crawl Logic Lowcountry | 60 | 5.0★ (52) | Charleston | Sat · Sun · Evenings | — |
| 3 | Affordable Spray Foam | 59 | 4.7★ (13) | Charleston | 24/7 | Emergencies |
| 4 | Palmetto Spray Foam Insulation | 59 | 4.8★ (12) | Charleston | 24/7 | — |
| 5 | Metro Wildlife and Pest Control | 59 | 4.9★ (310) | Charleston | — | — |
| 6 | Charleston SC Spray foam LLC | 59 | 4.9★ (8) | Charleston | 24/7 | — |
| 7 | R&E Home Solutions | 57 | 4.9★ (790) | Charleston | Sat · Sun · Evenings | Most reviews |
| 8 | Charleston Spray Foam Insulation | 57 | 5.0★ (24) | Charleston | Sat | — |
| 9 | Rivers Chimney CO | 57 | 4.8★ (33) | North Charleston, 7 mi away | Sat · Sun · Evenings | — |
| 10 | Dr Rock's Drywall & Painting LLC | 57 | 5.0★ (7) | Charleston | Sat · Sun | — |
The 42 best insulation contractors in Charleston, 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.
Based in Charleston
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 52 Google reviews
- Hours
- Mon–Sun 6 AM–8 PM
Based in Charleston
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1942 Sunnyvale Ave, Charleston, SC 29414
Based in Charleston
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 12 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Charleston
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 310 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 310 Google reviews
- Hours
- Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
Based in Charleston
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Charleston
57/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 790 Google reviews.
- 4.9★ from 790 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 778 Folly Rd d, Charleston, SC 29412
Based in Charleston
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 24 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun closed
Based in North Charleston, 7 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 33 Google reviews
- Hours
- Mon–Sun 6 AM–11 PM
- Address
- 4153 Rivers Ave, North Charleston, SC 29405
Based in Charleston
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Thu 8 AM–6 PM · Fri 8 AM–5 PM · Sat 10 AM–6 PM · Sun 10 AM–4 PM
Based in Charleston
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 6 Google reviews
- Hours
- Mon 7:30 AM–5 PM · Tue–Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
Based in North Charleston, 13 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 216 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 216 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 9 AM–5 PM · Sun closed
- Address
- 2154 N Center St Suite D-416, North Charleston, SC 29406
Based in Charleston
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 51 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
Based in Charleston
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 4.0★ from 4 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
#15 Crawlspace ER
Based in Charleston
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.2★ from 27 Google reviews, listed on Google as “Insulation contractor”.
- 4.2★ from 27 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 10 AM–3 PM · Sun closed
- Address
- 1729 Halls Pond Rd, Mt Pleasant, SC 29464
Based in Charleston
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 33 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 504 E Cooper Ave, Folly Beach, SC 29439
Based in Charleston
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 22 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
Based in Charleston
55/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 19 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
Based in Charleston
55/100CR ScoreRanked #19 because of its Google rating and review volume: 4.7★ from 282 Google reviews.
- 4.7★ from 282 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
- Address
- 1662 Savannah Hwy Suite 340, Charleston, SC 29407
Based in Charleston
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 4.4★ from 7 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
Based in North Charleston, 12 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.7★ from 698 Google reviews.
- 4.7★ from 698 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7110 Rivers Ave, North Charleston, SC 29406
#22 IBP Charleston
Based in Charleston
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.5★ from 21 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 21 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 6549 Fain St, Charleston, SC 29406
Based in Charleston
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
- Address
- 1301 Charleston Regional Pkwy, Charleston, SC 29492
Based in Charleston
53/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 8 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
Based in Charleston
53/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 82 Google reviews.
- 4.9★ from 82 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun closed
All 42 insulation contractors
#1 to #25 are shown in full above. Here are #26 to #42, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Carolina Foam Pros. LLC | 53 | 3.5★ (11) | In Charleston |
| 27 | Atlantic Spray Foam Charleston | 52 | 5.0★ (3) | In Charleston |
| 28 | Crawl Space Avengers | 52 | 4.7★ (12) | 8 mi |
| 29 | Easy Way Insulation | 51 | 5.0★ (9) | 10 mi |
| 30 | Carolina Services Inc. | 51 | 4.4★ (13) | 10 mi |
| 31 | American Air and Mold | 51 | 4.1★ (39) | In Charleston |
| 32 | Your Crawlspace Vapor Barrier Systems | 51 | 4.9★ (100) | In Charleston |
| 33 | New Leaf Sprayfoam | 51 | 5.0★ (6) | 10 mi |
| 34 | First Class Crawlspace Solutions | 50 | 5.0★ (13) | 16 mi |
| 35 | Crawl Space Ninja of Charleston | 49 | 5.0★ (6) | In Charleston |
| 36 | 31-W Insulation | 49 | 3.6★ (9) | 23 mi |
| 37 | Charleston Shelving and Mirror | 48 | 2.9★ (8) | 14 mi |
| 38 | Mills Brothers Charleston | 48 | 4.5★ (44) | 9 mi |
| 39 | SRI Gale Insulation | 48 | 3.3★ (12) | 18 mi |
| 40 | Charleston's Finest Painting LLC | 48 | 4.8★ (23) | 18 mi |
| 41 | Carolina Energy Conservation | 48 | 4.8★ (6) | 22 mi |
| 42 | Trico Exteriors, LLC | 44 | 4.4★ (158) | 19 mi |
Also serving Charleston
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 |
|---|---|---|
| 5 Star Charleston | 4.9★ (276) | In Charleston |
| Artigues Roofing & Restoration Services | 4.8★ (48) | In Charleston |
| Boss Energy | 4.9★ (139) | In Charleston |
| Call Dad | 4.9★ (646) | In Charleston |
| Canter Construction | 4.9★ (181) | In Charleston |
| Commonwealth Contracting, LLC | 5.0★ (94) | In Charleston |
| Crawlspace Medic of Charleston | 5.0★ (200) | In Charleston |
| Disaster Plus | 5.0★ (222) | In Charleston |
| Emerald Home Solutions | 5.0★ (290) | In Charleston |
| Fogel Services | 4.5★ (41) | In Charleston |
| Lowcountry Remediation | 5.0★ (72) | In Charleston |
| Mount Valley Foundation Services | 4.8★ (478) | In Charleston |
| New Age Contractors LLP | 4.1★ (69) | In Charleston |
| Preferred Home Services | 4.9★ (1,712) | In Charleston |
| Quality Fence & Custom Outdoors | 5.0★ (61) | In Charleston |
| SCSP Solar | 4.6★ (46) | In Charleston |
| Shine Construction, LLC | 5.0★ (43) | In Charleston |
| The Patch Boys of Greater Charleston | 4.6★ (59) | In Charleston |
| Transworld Electric | 4.9★ (159) | In Charleston |
| TSIAC International - Demolition, Asbestos & Restoration Removal | 4.8★ (57) | In Charleston |
How much do insulation contractors cost in Charleston?
National price ranges in USD, not adjusted for Charleston. 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 |
How we ranked Charleston insulation contractors
We scored 42 Charleston 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.
| Factor | Weight | Computed from | In Charleston data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Insulation contractors in Charleston: frequently asked questions
Who is the best insulation contractor in Charleston?
By CR Score, the highest-ranked insulation contractor in Charleston, SC is Pardee Service Experts with a CR Score of 62/100. It has 4.9★ from 6,317 Google reviews. It is open 24/7. Crawl Logic Lowcountry (#2) and Affordable Spray Foam (#3) follow. We ranked 42 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in Charleston?
ContractorsRanked ranks 42 insulation contractors serving Charleston, SC. 27 of them are based in Charleston; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Charleston are open 24/7?
5 ranked insulation contractors in Charleston post 24/7 hours. The highest-ranked are Pardee Service Experts (#1), Affordable Spray Foam (#3) and Palmetto Spray Foam Insulation (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Charleston work on weekends?
21 of 42 ranked insulation contractors post Saturday hours and 14 post Sunday hours. The highest-ranked open Saturdays are Pardee Service Experts (#1), Crawl Logic Lowcountry (#2) and Affordable Spray Foam (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Charleston?
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 Charleston. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Charleston insulation contractors have?
The median Google rating among 42 rated insulation contractors in Charleston is 4.8★, with a median of 16 reviews. Pardee Service Experts has the most, 6,317 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 Charleston count in this ranking?
Yes, if they are within 25 mi of the Charleston 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 Charleston
- October 2026: CR Scores recalculated for 42 insulation contractors serving Charleston.
More insulation contractors and Charleston pages
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