40 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Purcellville: Michael & Son Services, CR Score 83/100; 4.9★ from 1,501 Google reviews; open 24/7.
Best for emergencies (open 24/7): Knauf Insulation, posts 24/7 hours; ranked #8 of 40.
Most-reviewed: EcoShield Pest Solutions, 4,576 Google reviews at 4.7★, the most of 40 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
40 Purcellville insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 18 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 40 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Michael & Son Services | 83 | 4.9★ (1,501) | Sterling, 18 mi away | 24/7 | Overall |
| 2 | Home Paramount Pest Control | 83 | 4.8★ (111) | Purcellville | Sat | — |
| 3 | EcoShield Pest Solutions | 82 | 4.7★ (4,576) | Sterling, 18 mi away | Sat | Most reviews |
| 4 | Environmental Pest Control | 82 | 4.9★ (2,014) | Germantown, 24 mi away | Sat | — |
| 5 | Koala Insulation of Frederick – Mt. Airy | 81 | 5.0★ (47) | Halfway, 15 mi away | — | — |
| 6 | Founders Insulation | 80 | 4.8★ (99) | Chantilly, 23 mi away | Sat · Sun | — |
| 7 | Comfenergy | 80 | 4.8★ (378) | Sterling, 18 mi away | Sat | — |
| 8 | Knauf Insulation | 79 | 4.2★ (87) | Martinsburg, 25 mi away | 24/7 | Emergencies |
| 9 | Environmental Pest Control | 79 | 4.8★ (483) | Reston, 23 mi away | Sat | — |
| 10 | Xceptional Wildlife Removal | 77 | 4.1★ (17) | Spring Ridge, 15 mi away | 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: 4.9★ from 1,501 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Purcellville
Ranked #2 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 18 mi away
Ranked #3 because of its Google rating and review volume: 4.7★ from 4,576 Google reviews, the most Google reviews on this list (4,576).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Germantown, 24 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 2,014 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Halfway, 15 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Chantilly, 23 mi away
Ranked #6 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 Sterling, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 378 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Martinsburg, 25 mi away
Ranked #8 because of its Google rating and availability: 4.2★ from 87 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Reston, 23 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 483 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Spring Ridge, 15 mi away
Ranked #10 because of its Google rating and trade focus: 4.1★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 2,654 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Reston, 23 mi away
Ranked #12 because of its Google rating and availability: 4.9★ from 87 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick, 23 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 858 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 18 mi away
Ranked #14 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 Leesburg, 9 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Reston, 24 mi away
Ranked #16 because of its Google rating and availability: 4.9★ from 99 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Winchester, 24 mi away
Ranked #17 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Sterling, 19 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Charles Town, 17 mi away
Ranked #19 because of its Google rating and trade focus: 2.3★ 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 Great Falls, 24 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chantilly, 20 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brambleton, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 18 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 83 Google reviews, 83 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Martinsburg, 24 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick, 21 mi away
Ranked #25 because of its Google rating and review volume: 4.9★ from 476 Google reviews, 476 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 #40, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Argueta’s True-R-Value Insulation and Air Sealing | 70 | 2.7★ (7) | 19 mi |
| 27 | Home Paramount Pest Control | 70 | 4.6★ (189) | 22 mi |
| 28 | Nova Spray Foam Insulation | 69 | 3.5★ (13) | 15 mi |
| 29 | Fairfax Systems | 68 | 4.3★ (49) | 21 mi |
| 30 | Ace Handyman Services Frederick | 67 | 4.8★ (186) | 25 mi |
| 31 | Max Insulation | 67 | 3.4★ (10) | 15 mi |
| 32 | Ferguson Plumbing Supply | 66 | 4.7★ (19) | 9 mi |
| 33 | Insul-Tech Inc. | 66 | 3.7★ (3) | 24 mi |
| 34 | S&K Roofing, Siding and Windows | 66 | 4.8★ (45) | 17 mi |
| 35 | Handyman Connection of Winchester | 66 | 4.8★ (139) | 25 mi |
| 36 | Beyond Exteriors | 65 | 4.7★ (73) | 22 mi |
| 37 | Fortress Foundation Solutions | 65 | 5.0★ (31) | 23 mi |
| 38 | Davenport Insulation | 64 | 3.0★ (23) | 24 mi |
| 39 | Ferguson | 64 | 3.6★ (38) | 22 mi |
| 40 | Ferguson Plumbing Supply | 62 | 4.3★ (12) | 24 mi |
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 |
|---|---|---|
| AJC Consulting | 21 mi | |
| Alliant Solutions Partner | 21 mi | |
| D & D Painting & Repairs | 10 mi | |
| Dempsey's Painting Company | 10 mi | |
| DMV Painting LLC | 5.0★ (1) | 11 mi |
| EcoGuard Insulation | 5.0★ (1) | 19 mi |
| Jacob Air Duct Cleaning & Attic Insulation | 5.0★ (2) | 24 mi |
| L & C Spray Foam Insulators | 5.0★ (2) | 23 mi |
| Mid Atlantic Spray Foam, LLC | 1.0★ (1) | 9 mi |
| Old Dominion Insulation, Inc. | 10 mi | |
| Optimum Spray Foam Insulation | 5.0★ (2) | 18 mi |
| Pro Desk at The Home Depot | 4.0★ (2) | 24 mi |
| Pro Desk at The Home Depot | 5.0★ (1) | 10 mi |
| Pro Desk at The Home Depot | 5.0★ (1) | 18 mi |
| Pro Desk at The Home Depot | 5.0★ (1) | 18 mi |
| Pro Desk at The Home Depot | 5.0★ (1) | 24 mi |
| Ranger Glass East Coast | In Purcellville | |
| Southeastern Insulation Contractors Association | 22 mi | |
| VA Exteriors | 5.0★ (101) | In Purcellville |
| VAMAC, Inc | 5.0★ (1) | In Purcellville |
National price ranges in USD, not adjusted for Purcellville. 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 40 Purcellville 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 Purcellville 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 |