91/100CR Score
Ranked #1 because of its Google rating and availability: 4.6★ from 2,638 Google reviews, open 24/7.
- 4.6★ from 2,638 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8656 Dakota Dr, Gaithersburg, MD 20877
Best Insulation Contractors in Germantown, MD (2026)
116 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Germantown: Senate Termite & Pest Control, CR Score 91/100; 4.6★ from 2,638 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #3 of 116.
- 4
Most-reviewed: EcoShield Pest Solutions, 4,576 Google reviews at 4.7★, the most of 116 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
116 Germantown insulation contractors are ranked here by CR Score, from 8 published factors. 14 are open 24/7, 64 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.8★ across 116 rated businesses.
Top 10 insulation contractors in Germantown at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Senate Termite & Pest Control | 91 | 4.6★ (2,638) | Gaithersburg, 6 mi away | 24/7 | Overall |
| 2 | Environmental Pest Control | 88 | 4.9★ (2,014) | Germantown | Sat | — |
| 3 | Michael & Son Services | 84 | 4.9★ (1,501) | Sterling, 14 mi away | 24/7 | Emergencies |
| 4 | EcoShield Pest Solutions | 83 | 4.7★ (4,576) | Sterling, 15 mi away | Sat | Most reviews |
| 5 | Crawl Space Brothers | 82 | 4.9★ (33) | Arlington, 22 mi away | 24/7 | — |
| 6 | Crawl Space Brothers | 82 | 4.4★ (5) | Rockville, 9 mi away | 24/7 | — |
| 7 | Green Pest Services | 82 | 4.8★ (822) | Bethesda, 16 mi away | 24/7 | — |
| 8 | Crawl Space Brothers | 82 | 4.9★ (30) | Laurel, 22 mi away | 24/7 | — |
| 9 | Comfenergy | 81 | 4.8★ (378) | Sterling, 14 mi away | Sat | — |
| 10 | Environmental Pest Control | 81 | 4.8★ (483) | Reston, 16 mi away | Sat | — |
The 116 best insulation contractors in Germantown, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Germantown
88/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 2,014 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 2,014 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 18815 Sparkling Water Dr Unit N, Germantown, MD 20874
Based in Sterling, 14 mi away
84/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 1,501 Google reviews, open 24/7.
- 4.9★ from 1,501 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 45681 Oakbrook Ct STE 101, Sterling, VA 20166
Based in Sterling, 15 mi away
83/100CR ScoreRanked #4 because of its Google rating and review volume: 4.7★ from 4,576 Google reviews, the most Google reviews on this list (4,576).
- 4.7★ from 4,576 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 22560 Glenn Dr Suite 113, Sterling, VA 20164
Based in Arlington, 22 mi away
82/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 33 Google reviews, open 24/7.
- 4.9★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4601 Fairfax Dr Suite 1200, Arlington, VA 22203
Based in Rockville, 9 mi away
82/100CR ScoreRanked #6 because of its Google rating and availability: 4.4★ from 5 Google reviews, open 24/7.
- 4.4★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 330 N Stonestreet Ave Suite P, Rockville, MD 20850
Based in Bethesda, 16 mi away
82/100CR ScoreRanked #7 because of its Google rating and availability: 4.8★ from 822 Google reviews, open 24/7.
- 4.8★ from 822 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Third Floor, 4845 Rugby Ave Suite 303, Bethesda, MD 20814
Based in Laurel, 22 mi away
82/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 30 Google reviews, open 24/7.
- 4.9★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8101 Sandy Spring Rd Ste 250, Laurel, MD 20707
#9 Comfenergy
Based in Sterling, 14 mi away
81/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 378 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 378 Google reviews
- Hours
- Mon–Thu 8 AM–5:30 PM · Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 45714 Oakbrook Ct #180, Sterling, VA 20166
Based in Reston, 16 mi away
81/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 483 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 483 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 11874 Sunrise Valley Dr STE 201, Reston, VA 20191
Based in Adelphi, 23 mi away
80/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Chantilly, 22 mi away
80/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 99 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 4447 Brookfield Corporate Dr A, Chantilly, VA 20151
Based in Gaithersburg, 4 mi away
80/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.6★ from 90 Google reviews, listed on Google as “Insulation contractor”.
- 4.6★ from 90 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 5 Meem Ave, Gaithersburg, MD 20877
Based in Mount Airy, 14 mi away
80/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 231 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 231 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 1302 Rising Ridge Rd, Mt Airy, MD 21771
Based in Beltsville, 22 mi away
80/100CR ScoreRanked #15 because of its Google rating and availability: 4.4★ from 16 Google reviews, open 24/7.
- 4.4★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12210 Conway Rd, Beltsville, MD 20705
Based in Chillum, 17 mi away
80/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.5★ from 98 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 98 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–2 PM
Based in Falls Church, 21 mi away
79/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 1,580 Google reviews, 1,580 Google reviews.
- 4.9★ from 1,580 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 8 AM–4 PM
- Address
- 2841 Hartland Rd Ste 306, Falls Church, VA 22043
Based in Spring Ridge, 9 mi away
79/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.1★ from 17 Google reviews, listed on Google as “Insulation contractor”.
- 4.1★ from 17 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–2 PM
Based in Fairfax, 8 mi away
79/100CR ScoreRanked #19 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 7 AM–7 PM · Sat 7 AM–4 PM · Sun closed
#20 EDGE Energy
Based in Reston, 16 mi away
79/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 87 Google reviews, open 24/7.
- 4.9★ from 87 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12020 Sunrise Valley Dr #100, Reston, VA 20191
Based in Frederick, 16 mi away
79/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 858 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 858 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 5108 Pegasus Ct ste a, Frederick, MD 21704
#22 Terra Insulation
Based in Gaithersburg, 5 mi away
78/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 178 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 178 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 8340 Beechcraft Ave Unit C, Gaithersburg, MD 20879
#23 PestNow
Based in Sterling, 15 mi away
78/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.6★ from 2,654 Google reviews, listed on Google as “Insulation contractor”.
- 4.6★ from 2,654 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 22395 Powers Ct, Sterling, VA 20166
Based in Rockville, 7 mi away
78/100CR ScoreRanked #24 because of its Google rating and review volume: 4.7★ from 1,445 Google reviews, 1,445 Google reviews.
- 4.7★ from 1,445 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 2301 Research Blvd Suite 300, Rockville, MD 20850
Based in Purcellville, 21 mi away
77/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 111 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 39026 E Colonial Hwy, Hamilton, VA 20158
Insulation contractors ranked #26 to #50
#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 116 ranked insulation contractors here; the rest are on their profiles.
Also serving Germantown
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 |
|---|---|---|
| Budget Painting Services & Drywall Services, MD | 4.8★ (18) | In Germantown |
| Foremost Attic Clean Up Llc | 5.0★ (2) | 4 mi |
| Frost Fire Insulation Inc. | 5.0★ (2) | 15 mi |
| Insulation Service Washington DC | 5.0★ (2) | 24 mi |
| Jacob Air Duct Cleaning & Attic Insulation | 5.0★ (2) | 5 mi |
| JLM Handyman Services / General Contractor | 5.0★ (106) | In Germantown |
| Kelco Insulation Inc | 5.0★ (2) | 13 mi |
| L & C Spray Foam Insulators | 5.0★ (2) | 16 mi |
| MCL Construction, LLC | 5.0★ (2) | 18 mi |
| Next Level Exteriors | 4.9★ (53) | In Germantown |
| Optimum Spray Foam Insulation | 4.0★ (2) | 11 mi |
| Optimum Spray Foam Insulation | 5.0★ (2) | 13 mi |
| Osman Painting and Remodel | 5.0★ (2) | 12 mi |
| Pro Desk at The Home Depot | 5.0★ (2) | 6 mi |
| Pro Desk at The Home Depot | 4.0★ (2) | 20 mi |
| Pro Desk at The Home Depot | 4.5★ (2) | 21 mi |
| Quality Window & Glass Repair LLC | 5.0★ (392) | In Germantown |
| Simply Home Service | 5.0★ (184) | In Germantown |
| Specialty Products & Insulation | 5.0★ (2) | 24 mi |
| The Drywall Guy LLC | In Germantown |
How much do insulation contractors cost in Germantown?
National price ranges in USD, not adjusted for Germantown. 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 Germantown insulation contractors
We scored 116 Germantown 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 Germantown 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 |
Insulation contractors in Germantown: frequently asked questions
Who is the best insulation contractor in Germantown?
By CR Score, the highest-ranked insulation contractor in Germantown, MD is Senate Termite & Pest Control with a CR Score of 91/100. It has 4.6★ from 2,638 Google reviews. It is open 24/7. Environmental Pest Control (#2) and Michael & Son Services (#3) follow. We ranked 116 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Germantown?
ContractorsRanked ranks 116 insulation contractors serving Germantown, MD. 2 of them are based in Germantown; 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 Germantown are open 24/7?
14 ranked insulation contractors in Germantown post 24/7 hours. The highest-ranked are Senate Termite & Pest Control (#1), Michael & Son Services (#3) and Crawl Space Brothers (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Germantown work on weekends?
64 of 116 ranked insulation contractors post Saturday hours and 29 post Sunday hours. The highest-ranked open Saturdays are Senate Termite & Pest Control (#1), Environmental Pest Control (#2) and Michael & Son Services (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Germantown?
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 Germantown. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Germantown insulation contractors have?
The median Google rating among 116 rated insulation contractors in Germantown is 4.8★, with a median of 31 reviews. EcoShield Pest Solutions has the most, 4,576 reviews, and ranks #4. 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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Germantown count in this ranking?
Yes, if they are within 25 mi of the Germantown 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 Germantown
- October 2026: CR Scores recalculated for 116 insulation contractors serving Germantown.
- October 2026: 1 duplicate listing merged.
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