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ContractorsRanked

Best Insulation Contractors in North Potomac, MD (2026)

146 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in North Potomac: Senate Termite & Pest Control, CR Score 90/100; 4.6★ from 2,638 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #3 of 146.

  3. 18

    Most-reviewed: Michael & Son Services, 8,326 Google reviews at 4.8★, the most of 146 ranked; ranked #18.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

146 North Potomac insulation contractors are ranked here by CR Score, from 8 published factors. 18 are open 24/7, 84 open Saturdays and 39 open Sundays, based on posted hours. The median Google rating is 4.8★ across 146 rated businesses.

Most of this list also appears on the Insulation contractors in Germantown ranking. See Insulation contractors in Germantown

Top 10 insulation contractors in North Potomac at a glance

Top 10 insulation contractors in North Potomac at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Senate Termite & Pest Control904.6★ (2,638)Gaithersburg, 6 mi away24/7Overall
2Environmental Pest Control864.9★ (2,014)Germantown, 6 mi awaySat—
3Michael & Son Services854.9★ (1,501)Sterling, 10 mi away24/7Emergencies
4EcoShield Pest Solutions844.7★ (4,576)Sterling, 11 mi awaySat—
5Crawl Space Brothers834.9★ (33)Arlington, 16 mi away24/7—
6Green Pest Services824.8★ (822)Bethesda, 11 mi away24/7—
7Crawl Space Brothers824.4★ (5)Rockville, 6 mi away24/7—
8Crawl Space Brothers824.9★ (30)Laurel, 21 mi away24/7—
9Environmental Pest Control824.8★ (483)Reston, 11 mi awaySat—
10Comfenergy814.8★ (378)Sterling, 10 mi awaySat—

The 146 best insulation contractors in North Potomac, 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.

  2. #2 Environmental Pest Control

    Based in Germantown, 6 mi away

    86/100CR Score

    Ranked #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
    View profile for Environmental Pest Control(540) 441-7397

  4. #4 EcoShield Pest Solutions

    Based in Sterling, 11 mi away

    84/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.7★ from 4,576 Google reviews, listed on Google as “Insulation contractor”.

    • 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
    View profile for EcoShield Pest Solutions(202) 558-5388

  6. #6 Green Pest Services

    Based in Bethesda, 11 mi away

    82/100CR Score

    Ranked #6 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
    View profile for Green Pest Services(703) 961-8484

  10. #10 Comfenergy

    Based in Sterling, 10 mi away

    81/100CR Score

    Ranked #10 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
    View profile for Comfenergy(571) 659-6059

  11. #11 Founders Insulation

    Based in Chantilly, 17 mi away

    81/100CR Score

    Ranked #11 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
    View profile for Founders Insulation(703) 213-7591

  15. #15 EDGE Energy

    Based in Reston, 11 mi away

    80/100CR Score

    Ranked #15 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
    View profile for EDGE Energy(571) 462-2218

  20. #20 PestNow

    Based in Sterling, 11 mi away

    78/100CR Score

    Ranked #20 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
    View profile for PestNow(877) 284-2466

How much do insulation contractors cost in North Potomac?

National price ranges in USD, not adjusted for North Potomac. Each row names its basis and the month we checked it.

How much do insulation contractors cost in North Potomac?
JobLowTypicalHighBasisChecked
Attic insulation$1,700$2,100$2,500Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national rangeOctober 2026

How we ranked North Potomac insulation contractors

We scored 146 North Potomac 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn North Potomac data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Insulation contractors in North Potomac: frequently asked questions

Who is the best insulation contractor in North Potomac?

By CR Score, the highest-ranked insulation contractor in North Potomac, MD is Senate Termite & Pest Control with a CR Score of 90/100. 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 146 insulation contractors on 8 factors, last updated October 22, 2026.

How many insulation contractors are there in North Potomac?

ContractorsRanked ranks 146 insulation contractors serving North Potomac, MD. Counts are as of October 2026.

Which insulation contractors in North Potomac are open 24/7?

18 ranked insulation contractors in North Potomac 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 North Potomac work on weekends?

84 of 146 ranked insulation contractors post Saturday hours and 39 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 North Potomac?

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 North Potomac. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do North Potomac insulation contractors have?

The median Google rating among 146 rated insulation contractors in North Potomac is 4.8★, with a median of 24 reviews. Michael & Son Services has the most, 8,326 reviews, and ranks #18. 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 North Potomac count in this ranking?

Yes, if they are within 25 mi of the North Potomac 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 North Potomac

  1. October 2026: CR Scores recalculated for 146 insulation contractors serving North Potomac.
  2. October 2026: 1 duplicate listing merged.

More insulation contractors and North Potomac pages

Other trades in North Potomac