87 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Londontowne: EcoShield Pest Solutions, CR Score 83/100; 4.8★ from 9,707 Google reviews; open Saturdays until 1 PM.
Best for emergencies (open 24/7): Crawl Space Brothers, posts 24/7 hours; ranked #5 of 87.
Most-reviewed: Michael & Son Services, 8,326 Google reviews at 4.8★, the most of 87 ranked after EcoShield Pest Solutions; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
87 Londontowne insulation contractors are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 51 open Saturdays and 25 open Sundays, based on posted hours. The median Google rating is 4.6★ across 87 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | EcoShield Pest Solutions | 83 | 4.8★ (9,707) | Bowie, 18 mi away | Sat | Overall |
| 2 | Environmental Pest Control | 83 | 4.9★ (600) | Crofton, 9 mi away | Sat | — |
| 3 | Advanced Green Home Solutions | 82 | 4.9★ (200) | Annapolis, 4 mi away | Sat | — |
| 4 | Smart Energy Pros | 82 | 4.9★ (246) | Baltimore, 21 mi away | Sat · Sun | — |
| 5 | Crawl Space Brothers | 82 | 4.9★ (30) | Laurel, 21 mi away | 24/7 | Emergencies |
| 6 | C & R Insulation, LLC | 82 | 4.6★ (72) | Arnold, 8 mi away | Sat · Sun | — |
| 7 | Eagle Remodeling and construction | 81 | 5.0★ (13) | Adelphi, 20 mi away | 24/7 | — |
| 8 | Michael & Son Services | 81 | 4.8★ (8,326) | Hyattsville, 17 mi away | Sat · Sun | Most reviews |
| 9 | Home Paramount Pest Control | 80 | 4.6★ (131) | Annapolis, 4 mi away | Sat | — |
| 10 | Fireworks Construction | 80 | 4.4★ (16) | Beltsville, 20 mi away | 24/7 | — |
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 review volume: 4.8★ from 9,707 Google reviews, the most Google reviews on this list (9,707).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crofton, 9 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 600 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 4 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 21 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 246 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Laurel, 21 mi away
Ranked #5 because of its Google rating and availability: 4.9★ from 30 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Arnold, 8 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 72 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Adelphi, 20 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hyattsville, 17 mi away
Ranked #8 because of its Google rating and review volume: 4.8★ from 8,326 Google reviews, 8,326 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 131 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beltsville, 20 mi away
Ranked #10 because of its Google rating and availability: 4.4★ from 16 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 3 mi away
Ranked #11 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 Forestville, 18 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 193 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bowie, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 459 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Glen Burnie, 17 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 786 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 3 mi away
Ranked #15 because of its Google rating and availability: 4.8★ from 53 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Annapolis, 6 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 354 Google reviews, 354 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 17 mi away
Ranked #17 because of its Google rating and trade focus: 4.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 23 mi away
Ranked #18 because of its Google rating and availability: 4.9★ from 71 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ashton-Sandy Spring, 24 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lanham, 15 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ 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 Annapolis, 5 mi away
Ranked #21 because of its Google rating and review volume: 5.0★ from 110 Google reviews, 110 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hanover, 20 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 365 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coral Hills, 21 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Washington, D.C., 25 mi away
Ranked #24 because of its Google rating and availability: 4.8★ from 56 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baltimore, 18 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#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 87 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 |
|---|---|---|
| Anglesey Insulation Inc | 9 mi | |
| Bowie Insulation Pros | 11 mi | |
| Capitol Insulation Services of Maryland | 1.0★ (1) | 17 mi |
| Chaste Spray Foam Contractor Experts | 5.0★ (1) | 16 mi |
| Insupro Attic Insulation of Baltimore | 5.0★ (2) | 25 mi |
| Insupro Attic Insulation of Columbia | 5.0★ (1) | 25 mi |
| Irex Advanced Specialty | 5.0★ (2) | 21 mi |
| JM INSULATION LLC | 5.0★ (2) | 24 mi |
| Mgv spray foam insulation llc | 5.0★ (1) | 14 mi |
| Nicer Insulation Services Inc | 5.0★ (1) | 25 mi |
| Odenton Insulation | 12 mi | |
| Overjoyed Spray Foam Llc | 5.0★ (1) | 25 mi |
| Pro Desk at The Home Depot | 2.5★ (2) | 15 mi |
| Pro Desk at The Home Depot | 1.0★ (2) | 22 mi |
| Pro Desk at The Home Depot | 4.0★ (1) | 3 mi |
| Rabco Insulation Inc | 5.0★ (2) | 10 mi |
| Real Property Performance | 14 mi | |
| Riverview Insulation Inc | 5.0★ (1) | 24 mi |
| Severn Insulation | 12 mi | |
| Specialty Products & Insulation | 5.0★ (2) | 20 mi |
National price ranges in USD, not adjusted for Londontowne. 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 87 Londontowne 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 Londontowne 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 |