86/100CR 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 Eldersburg, MD (2026)
62 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Eldersburg: Senate Termite & Pest Control, CR Score 86/100; 4.6★ from 2,638 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Crawl Space Brothers, posts 24/7 hours; ranked #4 of 62.
- 2
Most-reviewed: EcoShield Pest Solutions, 9,707 Google reviews at 4.8★, the most of 62 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
62 Eldersburg insulation contractors are ranked here by CR Score, from 8 published factors. 8 are open 24/7, 31 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.8★ across 62 rated businesses.
Top 10 insulation contractors in Eldersburg at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Senate Termite & Pest Control | 86 | 4.6★ (2,638) | Gaithersburg, 23 mi away | 24/7 | Overall |
| 2 | EcoShield Pest Solutions | 83 | 4.8★ (9,707) | Bowie, 21 mi away | Sat | Most reviews |
| 3 | Smart Energy Pros | 82 | 4.9★ (246) | Baltimore, 20 mi away | Sat · Sun | — |
| 4 | Crawl Space Brothers | 82 | 4.9★ (30) | Laurel, 21 mi away | 24/7 | Emergencies |
| 5 | Environmental Pest Control | 81 | 4.9★ (2,014) | Germantown, 24 mi away | Sat | — |
| 6 | Home Paramount Pest Control | 80 | 4.5★ (65) | Eldersburg | Sat | — |
| 7 | Environmental Pest Control | 80 | 4.8★ (231) | Mount Airy, 12 mi away | Sat | — |
| 8 | Advanced Spray Foam and Coatings LLC | 80 | 5.0★ (172) | Hampstead, 16 mi away | Sat | — |
| 9 | AROCON Roofing & Construction | 80 | 4.8★ (1,809) | Westminster, 12 mi away | Sat · Sun · Evenings | — |
| 10 | Wallace Roofing siding gutter sign window commercial residential flat metal asphalt shingle drywall insulation repairs | 80 | 4.8★ (19) | Baltimore, 11 mi away | 24/7 | — |
The 62 best insulation contractors in Eldersburg, 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 Bowie, 21 mi away
83/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 9,707 Google reviews, the most Google reviews on this list (9,707).
- 4.8★ from 9,707 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 12011 Guilford Rd Unit 102, Annapolis Junction, MD 20701
Based in Baltimore, 20 mi away
82/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 246 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 246 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
Based in Laurel, 21 mi away
82/100CR ScoreRanked #4 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
Based in Germantown, 24 mi away
81/100CR ScoreRanked #5 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 Eldersburg
80/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.5★ from 65 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 65 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 6314 Sykesville Rd, Sykesville, MD 21784
Based in Mount Airy, 12 mi away
80/100CR ScoreRanked #7 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 Hampstead, 16 mi away
80/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 172 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 172 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 2100B Cape Horn Rd, Hampstead, MD 21074
Based in Westminster, 12 mi away
80/100CR ScoreRanked #9 because of its Google rating and review volume: 4.8★ from 1,809 Google reviews, 1,809 Google reviews.
- 4.8★ from 1,809 Google reviews
- Hours
- Mon–Fri 7:30 AM–8 PM · Sat–Sun 9 AM–8 PM
- Address
- 101 R John St, Westminster, MD 21157
Based in Baltimore, 11 mi away
80/100CR ScoreRanked #10 because of its Google rating and availability: 4.8★ from 19 Google reviews, open 24/7.
- 4.8★ from 19 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3036 Rolling Rd., Windsor Mill, MD 21244
Based in Beltsville, 24 mi away
79/100CR ScoreRanked #11 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 Baltimore, 16 mi away
78/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 71 Google reviews, open 24/7.
- 4.9★ from 71 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#13 Koala Insulation
Based in Baltimore, 12 mi away
78/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 288 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 288 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 2622 Lord Baltimore Dr Suite F, Baltimore, MD 21244
Based in Rockville, 24 mi away
78/100CR ScoreRanked #14 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 Ashton-Sandy Spring, 19 mi away
77/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 92 Google reviews
- Hours
- Mon–Sat 8 AM–10 PM · Sun closed
Based in Eldersburg
76/100CR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 1,010 Google reviews, 1,010 Google reviews.
- 4.9★ from 1,010 Google reviews
- Hours
- Mon–Fri 7 AM–9 PM · Sat–Sun closed
- Address
- 6235 Sykesville Rd, Eldersburg, MD 21784
Based in Baltimore, 12 mi away
76/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 110 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 2624 Lord Baltimore Dr Suite A, Windsor Mill, MD 21244
Based in Glen Burnie, 22 mi away
76/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 786 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 786 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 508 McCormick Dr Suite H, Glen Burnie, MD 21061
Based in Eldersburg
76/100CR ScoreRanked #19 because of its Google rating and review volume: 4.9★ from 1,092 Google reviews, 1,092 Google reviews.
- 4.9★ from 1,092 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 5399 Enterprise St, Eldersburg, MD 21784
Based in Fairfax, 19 mi away
76/100CR ScoreRanked #20 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
Based in Eldersburg
76/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.6★ from 24 Google reviews, listed on Google as “Insulation contractor”.
- 4.6★ from 24 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 49 Venture Way, Eldersburg, MD 21784
Based in Frederick, 25 mi away
75/100CR ScoreRanked #22 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
Based in Hanover, 19 mi away
75/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 365 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 365 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 1745 Dorsey Rd l, Hanover, MD 21076
Based in Baltimore, 22 mi away
75/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
- 4.0★ from 37 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
Based in Gaithersburg, 23 mi away
75/100CR ScoreRanked #25 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
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 62 ranked insulation contractors here; the rest are on their profiles.
Also serving Eldersburg
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.
How much do insulation contractors cost in Eldersburg?
National price ranges in USD, not adjusted for Eldersburg. 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 Eldersburg insulation contractors
We scored 62 Eldersburg 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 Eldersburg 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 Eldersburg: frequently asked questions
Who is the best insulation contractor in Eldersburg?
By CR Score, the highest-ranked insulation contractor in Eldersburg, MD is Senate Termite & Pest Control with a CR Score of 86/100. It has 4.6★ from 2,638 Google reviews. It is open 24/7. EcoShield Pest Solutions (#2) and Smart Energy Pros (#3) follow. We ranked 62 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Eldersburg?
ContractorsRanked ranks 62 insulation contractors serving Eldersburg, MD. 4 of them are based in Eldersburg; 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 Eldersburg are open 24/7?
8 ranked insulation contractors in Eldersburg post 24/7 hours. The highest-ranked are Senate Termite & Pest Control (#1), Crawl Space Brothers (#4) and Wallace Roofing siding gutter sign window commercial residential flat metal asphalt shingle drywall insulation repairs (#10). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Eldersburg work on weekends?
31 of 62 ranked insulation contractors post Saturday hours and 13 post Sunday hours. The highest-ranked open Saturdays are Senate Termite & Pest Control (#1), EcoShield Pest Solutions (#2) and Smart Energy Pros (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Eldersburg?
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 Eldersburg. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Eldersburg insulation contractors have?
The median Google rating among 62 rated insulation contractors in Eldersburg is 4.8★, with a median of 69 reviews. EcoShield Pest Solutions has the most, 9,707 reviews, and ranks #2. 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 Eldersburg count in this ranking?
Yes, if they are within 25 mi of the Eldersburg 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 Eldersburg
- October 2026: CR Scores recalculated for 62 insulation contractors serving Eldersburg.
More insulation contractors and Eldersburg pages
Insulation contractors near Eldersburg
- Insulation contractors in Reisterstown, MD52 ranked
- Insulation contractors in Randallstown, MD68 ranked
- Insulation contractors in Owings Mills, MD63 ranked
- Insulation contractors in Garrison, MD64 ranked
- Insulation contractors in Milford Mill, MD67 ranked
- Insulation contractors in Mount Airy, MD44 ranked
- Insulation contractors in Westminster, MD26 ranked
- Insulation contractors in Pikesville, MD66 ranked
- Insulation contractors in Ellicott City, MD95 ranked
- Insulation contractors in Columbia, MD101 ranked
Other trades in Eldersburg
- Roofers in Eldersburg1199 ranked
- Plumbers in Eldersburg492 ranked
- Electricians in Eldersburg401 ranked
- HVAC contractors in Eldersburg611 ranked
- General contractors in Eldersburg882 ranked
- Painters in Eldersburg94 ranked
- Landscapers in Eldersburg180 ranked
- Handymen in Eldersburg63 ranked
- Kitchen remodelers in Eldersburg510 ranked
- Bathroom remodelers in Eldersburg521 ranked
- Flooring contractors in Eldersburg338 ranked
- Tile installers in Eldersburg19 ranked
- Drywall contractors in Eldersburg6 ranked
- Concrete contractors in Eldersburg190 ranked
- Fence contractors in Eldersburg104 ranked
- Deck builders in Eldersburg249 ranked
- Siding contractors in Eldersburg539 ranked
- Window installers in Eldersburg525 ranked
- Gutter installers in Eldersburg196 ranked
- Solar installers in Eldersburg158 ranked
- Garage door repair companies in Eldersburg98 ranked
- Foundation repair companies in Eldersburg184 ranked
- Tree services in Eldersburg199 ranked
- Masonry contractors in Eldersburg142 ranked
- Water damage restoration companies in Eldersburg714 ranked
- Home builders in Eldersburg654 ranked
- Demolition contractors in Eldersburg82 ranked
- All contractors in Eldersburg