86 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Triangle: Leonard Splaine Co., CR Score 86/100; 4.9★ from 1,060 Google reviews; open 24/7.
Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #3 of 86.
Most-reviewed: Senate Termite & Pest Control, 2,022 Google reviews at 4.6★, the most of 86 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
86 Triangle insulation contractors are ranked here by CR Score, from 8 published factors. 12 are open 24/7, 49 open Saturdays and 27 open Sundays, based on posted hours. The median Google rating is 4.9★ across 86 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Leonard Splaine Co. | 86 | 4.9★ (1,060) | Dale City, 9 mi away | 24/7 | Overall |
| 2 | Environmental Pest Control | 86 | 4.9★ (874) | Dale City, 7 mi away | Sat | — |
| 3 | Michael & Son Services | 84 | 4.8★ (2,001) | Fredericksburg, 16 mi away | 24/7 | Emergencies |
| 4 | Senate Termite & Pest Control | 83 | 5.0★ (6) | Mount Vernon, 12 mi away | 24/7 | — |
| 5 | Environmental Pest Control | 82 | 4.9★ (644) | Fredericksburg, 20 mi away | Sat | — |
| 6 | Senate Termite & Pest Control | 82 | 4.6★ (2,022) | Manassas, 20 mi away | 24/7 | Most reviews |
| 7 | Home Paramount Pest Control | 81 | 4.7★ (163) | Dale City, 9 mi away | Sat | — |
| 8 | Founders Insulation | 81 | 4.8★ (99) | Chantilly, 24 mi away | Sat · Sun | — |
| 9 | NV Waterproofing & Foundation Repair | 80 | 4.9★ (975) | Manassas, 20 mi away | Sat · Sun | — |
| 10 | AR General Contracting LLC | 80 | 5.0★ (62) | Manassas, 15 mi away | 24/7 | — |
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: 4.9★ from 1,060 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dale City, 7 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 874 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fredericksburg, 16 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 2,001 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mount Vernon, 12 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fredericksburg, 20 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 644 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas, 20 mi away
Ranked #6 because of its Google rating and review volume: 4.6★ from 2,022 Google reviews, the most Google reviews on this list (2,022).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dale City, 9 mi away
Ranked #7 because of its Google rating and trade focus: 4.7★ from 163 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chantilly, 24 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas, 20 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 975 Google reviews, 975 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas, 15 mi away
Ranked #10 because of its Google rating and availability: 5.0★ from 62 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Falls Church, 24 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 1,580 Google reviews, 1,580 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fredericksburg, 21 mi away
Ranked #12 because of its Google rating and availability: 4.9★ from 147 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gainesville, 14 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 35 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dale City, 8 mi away
Ranked #14 because of its Google rating and trade focus: 4.6★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waldorf, 24 mi away
Ranked #15 because of its Google rating and availability: 5.0★ from 106 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas, 16 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 305 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dale City, 8 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Waldorf, 21 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 107 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fredericksburg, 21 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 140 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bethesda, 22 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fredericksburg, 16 mi away
Ranked #21 because of its Google rating and availability: 4.4★ from 157 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dumfries, 1 mi away
Ranked #22 because of its Google rating and availability: 4.9★ from 30 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arbutus, 19 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Alexandria, 23 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 35 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fredericksburg, 22 mi away
Ranked #25 because of its Google rating and review volume: 4.7★ from 526 Google reviews, 526 Google reviews.
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 86 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 |
|---|---|---|
| Builders' Insulation | 4.0★ (1) | 20 mi |
| Central Virginia Insulation | 5.0★ (2) | 5 mi |
| ECR Painting INC | 5.0★ (1) | 17 mi |
| Elite Estate Management LLC | 5.0★ (2) | 22 mi |
| JMD Handyman Services LLC | 5.0★ (1) | 23 mi |
| L.A.INSULATION COMPANY INC. | 3.0★ (1) | 19 mi |
| Mr Joaquin Painting, LLC | 4.5★ (2) | 17 mi |
| North American Insulation Manufacturers Association, Inc. | 5.0★ (1) | 25 mi |
| Ocean Fireproofing | 5.0★ (2) | 23 mi |
| Patriot Painting | 5.0★ (1) | 13 mi |
| Pro Desk at The Home Depot | 5.0★ (2) | 8 mi |
| Pro Desk at The Home Depot | 4.5★ (2) | 23 mi |
| Pro Desk at The Home Depot | 3.0★ (1) | 16 mi |
| Pro Desk at The Home Depot | 4.0★ (1) | 19 mi |
| Pro Desk at The Home Depot | 7 mi | |
| Robert Koenig & Co | 5.0★ (1) | 14 mi |
| Smart Home Improvement DMV | 5.0★ (2) | 15 mi |
| Summit Environmental Solutions, Inc. | 2.0★ (2) | 9 mi |
| The Tank Foam | 5.0★ (1) | 19 mi |
| USA Insulation of Fairfax County | 5.0★ (1) | 20 mi |
National price ranges in USD, not adjusted for Triangle. 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 86 Triangle 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 Triangle 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 |