48 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Green Valley: Senate Termite & Pest Control, CR Score 62/100; 4.6★ from 2,638 Google reviews; open 24/7.
Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #7 of 48.
Most-reviewed: EcoShield Pest Solutions, 4,576 Google reviews at 4.7★, the most of 48 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
48 Green Valley insulation contractors are ranked here by CR Score, from ten published factors. 5 are open 24/7, 24 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.8★ across 48 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Senate Termite & Pest Control | 62 | 4.6★ (2,638) | Gaithersburg, 14 mi away | 24/7 | Overall |
| 2 | Environmental Pest Control | 61 | 4.9★ (2,014) | Germantown, 10 mi away | Sat | — |
| 3 | Atlas Home Energy Solutions | 59 | 4.9★ (858) | Frederick, 7 mi away | — | — |
| 4 | Environmental Pest Control | 58 | 4.8★ (231) | Mount Airy, 8 mi away | Sat | — |
| 5 | EcoShield Pest Solutions | 58 | 4.7★ (4,576) | Sterling, 23 mi away | Sat | Most reviews |
| 6 | Comfenergy | 55 | 4.8★ (378) | Sterling, 22 mi away | Sat | — |
| 7 | Michael & Son Services | 55 | 4.9★ (1,501) | Sterling, 22 mi away | 24/7 | Emergencies |
| 8 | Terra Insulation | 55 | 4.8★ (178) | Gaithersburg, 12 mi away | — | — |
| 9 | PestNow | 55 | 4.6★ (2,654) | Sterling, 23 mi away | — | — |
| 10 | Home Paramount Pest Control | 55 | 4.6★ (90) | Gaithersburg, 13 mi away | Sat | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.6★ from 2,638 Google reviews, listed on Google as “Insulation contractor”.
Based in Germantown, 10 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 2,014 Google reviews, listed on Google as “Insulation contractor”.
Based in Frederick, 7 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 858 Google reviews, listed on Google as “Insulation contractor”.
Based in Mount Airy, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 231 Google reviews, listed on Google as “Insulation contractor”.
Based in Sterling, 23 mi away
Ranked #5 because of its Google rating and review volume: 4.7★ from 4,576 Google reviews, the most in Green Valley.
Based in Sterling, 22 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 378 Google reviews, listed on Google as “Insulation contractor”.
Based in Sterling, 22 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 1,501 Google reviews.
Based in Gaithersburg, 12 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 178 Google reviews, listed on Google as “Insulation contractor”.
Based in Sterling, 23 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 2,654 Google reviews, listed on Google as “Insulation contractor”.
Based in Gaithersburg, 13 mi away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 90 Google reviews, listed on Google as “Insulation contractor”.
Based in Frederick, 15 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 86 Google reviews, listed on Google as “Insulation contractor”.
Based in Spring Ridge, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.1★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfax, 14 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based in Purcellville, 23 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “Insulation contractor”.
Based in Rockville, 17 mi away
Ranked #15 because of its Google rating and trade focus: 4.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Frederick, 6 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Bethesda, 24 mi away
Ranked #17 because of its Google rating and review volume: 4.8★ from 822 Google reviews.
Based in Ashton-Sandy Spring, 24 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “Insulation contractor”.
Based in Westminster, 25 mi away
Ranked #19 because of its Google rating and review volume: 4.8★ from 1,809 Google reviews.
Based in Eldersburg, 20 mi away
Ranked #20 because of its Google rating and trade focus: 4.5★ from 65 Google reviews, listed on Google as “Insulation contractor”.
Based in Ballenger Creek, 11 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Rockville, 15 mi away
Ranked #22 because of its Google rating and review volume: 4.7★ from 1,445 Google reviews.
Based in Sterling, 22 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Rockville, 21 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Insulation contractor”.
Based in Frederick, 11 mi away
Ranked #25 because of its Google rating and review volume: 4.9★ from 476 Google reviews.
National price ranges in USD, not adjusted for Green Valley. 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 48 Green Valley 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 Green Valley 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 |