127 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Wolf Trap: Senate Termite & Pest Control, CR Score 61/100; 4.6★ from 2,638 Google reviews; open 24/7.
Best for emergencies (open 24/7): Crawl Space Brothers, posts 24/7 hours; ranked #6 of 127.
Most-reviewed: Michael & Son Services, 8,326 Google reviews at 4.8★, the most of 127 ranked; ranked #23.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
127 Wolf Trap insulation contractors are ranked here by CR Score, from ten published factors. 21 are open 24/7, 72 open Saturdays and 31 open Sundays, based on posted hours. The median Google rating is 4.9★ across 127 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Senate Termite & Pest Control | 61 | 4.6★ (2,638) | Gaithersburg, 14 mi away | 24/7 | Overall |
| 2 | EcoShield Pest Solutions | 61 | 4.7★ (4,576) | Sterling, 8 mi away | Sat | — |
| 3 | Environmental Pest Control | 59 | 4.8★ (483) | Reston, 4 mi away | Sat | — |
| 4 | Environmental Pest Control | 59 | 4.9★ (2,014) | Germantown, 16 mi away | Sat | — |
| 5 | Comfenergy | 58 | 4.8★ (378) | Sterling, 9 mi away | Sat | — |
| 6 | Crawl Space Brothers | 58 | 4.9★ (33) | Arlington, 10 mi away | 24/7 | Emergencies |
| 7 | Xceptional Wildlife Removal | 58 | 4.5★ (98) | Chillum, 4 mi away | Sat · Sun · Evenings | — |
| 8 | Founders Insulation | 57 | 4.8★ (99) | Chantilly, 9 mi away | Sat · Sun | — |
| 9 | PestNow | 57 | 4.6★ (2,654) | Sterling, 9 mi away | — | — |
| 10 | Michael & Son Services | 57 | 4.9★ (1,501) | Sterling, 9 mi away | 24/7 | — |
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 Sterling, 8 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 4,576 Google reviews, listed on Google as “Insulation contractor”.
Based in Reston, 4 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 483 Google reviews, listed on Google as “Insulation contractor”.
Based in Germantown, 16 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 in Sterling, 9 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 378 Google reviews, listed on Google as “Insulation contractor”.
Based in Arlington, 10 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based in Chillum, 4 mi away
Ranked #7 because of its Google rating and trade focus: 4.5★ from 98 Google reviews, listed on Google as “Insulation contractor”.
Based in Chantilly, 9 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 in Sterling, 9 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 Sterling, 9 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 1,501 Google reviews.
Based in Falls Church, 6 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 1,580 Google reviews.
Based in Falls Church, 6 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 147 Google reviews, listed on Google as “Insulation contractor”.
Based in Dale City, 22 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 874 Google reviews, listed on Google as “Insulation contractor”.
Based in Bethesda, 11 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 822 Google reviews.
Based in Bethesda, 2 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based in Falls Church, 8 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Manassas, 16 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 305 Google reviews, listed on Google as “Insulation contractor”.
Based in Great Falls, 4 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based in Reston, 4 mi away
Ranked #19 because of its Google rating and availability: 4.9★ from 87 Google reviews, open 24/7.
Based in Dale City, 19 mi away
Ranked #20 because of its Google rating and review volume: 4.9★ from 1,060 Google reviews.
Based in Manassas, 15 mi away
Ranked #21 because of its Google rating and review volume: 4.6★ from 2,022 Google reviews.
Based in Sterling, 9 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Hyattsville, 23 mi away
Ranked #23 because of its Google rating and review volume: 4.8★ from 8,326 Google reviews, the most in Wolf Trap.
Based in Arbutus, 10 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Rockville, 13 mi away
Ranked #25 because of its Google rating and trade focus: 4.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
#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 127 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 |
|---|---|---|
| Attic Insulation DC | 5.0★ (1) | 12 mi |
| Central Virginia Insulation | 5.0★ (2) | 24 mi |
| EcoGuard Insulation | 5.0★ (1) | 12 mi |
| Foremost Attic Clean Up Llc | 5.0★ (2) | 14 mi |
| Insulation Service Washington DC | 5.0★ (2) | 15 mi |
| Jacob Air Duct Cleaning & Attic Insulation | 5.0★ (2) | 21 mi |
| JM INSULATION LLC | 5.0★ (2) | 25 mi |
| JMD Handyman Services LLC | 5.0★ (1) | 7 mi |
| L & C Spray Foam Insulators | 5.0★ (2) | 4 mi |
| L.A.INSULATION COMPANY INC. | 3.0★ (1) | 10 mi |
| MCL Construction, LLC | 5.0★ (2) | 15 mi |
| Mr Joaquin Painting, LLC | 4.5★ (2) | 15 mi |
| North American Insulation Manufacturers Association, Inc. | 5.0★ (1) | 16 mi |
| Ocean Fireproofing | 5.0★ (2) | 15 mi |
| Osman Painting and Remodel | 5.0★ (2) | 15 mi |
| Smart Home Improvement DMV | 5.0★ (2) | 14 mi |
| Summit Environmental Solutions, Inc. | 2.0★ (2) | 23 mi |
| The Tank Foam | 5.0★ (1) | 16 mi |
| Triumph Home Services LLC | 5.0★ (1) | 16 mi |
| USA Insulation of Fairfax County | 5.0★ (1) | 8 mi |
National price ranges in USD, not adjusted for Wolf Trap. 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 127 Wolf Trap 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 Wolf Trap 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 |