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Best Insulation Contractors in Washington, D.C., DC (2026)

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

The short answer

  1. 1

    Best overall in Washington, D.C.: Senate Termite & Pest Control, CR Score 60/100; 4.6★ from 2,638 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Crawl Space Brothers, posts 24/7 hours; ranked #2 of 136.

  3. 3

    Most-reviewed: EcoShield Pest Solutions, 9,707 Google reviews at 4.8★, the most of 136 ranked; ranked #3.

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

136 Washington, D.C. insulation contractors are ranked here by CR Score, from ten published factors. 22 are open 24/7, 75 open Saturdays and 32 open Sundays, based on posted hours. The median Google rating is 4.9★ across 136 rated businesses.

Top 10 insulation contractors in Washington, D.C. at a glance

Top 10 insulation contractors in Washington, D.C. at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Senate Termite & Pest Control604.6★ (2,638)Gaithersburg, 18 mi away24/7Overall
2Crawl Space Brothers594.9★ (33)Arlington, 5 mi away24/7Emergencies
3EcoShield Pest Solutions594.8★ (9,707)Bowie, 21 mi awaySatMost reviews
4Environmental Pest Control574.9★ (2,014)Germantown, 23 mi awaySat—
5Michael & Son Services574.8★ (8,326)Hyattsville, 10 mi awaySat · Sun—
6EcoShield Pest Solutions574.7★ (4,576)Sterling, 22 mi awaySat—
7Home Paramount Pest Control574.8★ (193)Forestville, 10 mi awaySat—
8Environmental Pest Control564.9★ (600)Crofton, 19 mi awaySat—
9Environmental Pest Control564.9★ (874)Dale City, 22 mi awaySat—
10Green Pest Services564.8★ (822)Bethesda, 7 mi away24/7—

The 136 best insulation contractors in Washington, D.C., ranked

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.

  2. #2 Crawl Space Brothers

    Based in Arlington, 5 mi away

    59/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Insulation contractor”.

    • 4.9★ from 33 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4601 Fairfax Dr Suite 1200, Arlington, VA 22203
    View profile for Crawl Space Brothers(703) 399-2132

  3. #3 EcoShield Pest Solutions

    Based in Bowie, 21 mi away

    59/100CR Score

    Ranked #3 because of its Google rating and review volume: 4.8★ from 9,707 Google reviews, the most in Washington, D.C..

    • 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
    View profile for EcoShield Pest Solutions(410) 695-4432

  4. #4 Environmental Pest Control

    Based in Germantown, 23 mi away

    57/100CR Score

    Ranked #4 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

  6. #6 EcoShield Pest Solutions

    Based in Sterling, 22 mi away

    57/100CR Score

    Ranked #6 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

  14. #14 Home Energy Medics

    Based in Arlington, 3 mi away

    56/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.7★ from 221 Google reviews, listed on Google as “Insulation contractor”.

    • 4.7★ from 221 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    817 22nd St S, Arlington, VA 22202
    View profile for Home Energy Medics(703) 420-4749

  15. #15 Crawl Space Brothers

    Based in Laurel, 17 mi away

    56/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Insulation contractor”.

    • 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
    View profile for Crawl Space Brothers(410) 498-4628

  19. #19 Performance Insulation

    Based in Falls Church, 7 mi away

    55/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.

    • 5.0★ from 29 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    Address
    6413 Seven Oaks Dr, Falls Church, VA 22042
    View profile for Performance Insulation(571) 605-2290

  20. #20 FreshStep

    Based in Coral Hills, 8 mi away

    55/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Insulation contractor”.

    • 4.8★ from 39 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    View profile for FreshStep

  23. #23 DMV Foam

    Based in Falls Church, 6 mi away

    55/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.6★ from 36 Google reviews, listed on Google as “Insulation contractor”.

    • 4.6★ from 36 Google reviews
    Hours
    Mon–Sat 7 AM–8 PM · Sun closed
    Address
    3701 S George Mason Dr Unit 1017, Falls Church, VA 22041
    View profile for DMV Foam(571) 977-8247

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 136 ranked insulation contractors here; the rest are on their profiles.

insulation contractors in Washington, D.C., ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Virginia Spray Foam Insulation555.0★ (21)In Washington, D.C.
27Extreme Spray Foam of Washington545.0★ (19)In Washington, D.C.
28Founders Insulation544.8★ (99)22 mi
29EDGE Energy544.8★ (56)In Washington, D.C.
30Comfenergy544.8★ (378)22 mi
31Virginia Spray Foam Insulation545.0★ (17)In Washington, D.C.
32DMV ATTIC INSULATION544.0★ (7)In Washington, D.C.
33DC Spray Foam Insulation545.0★ (21)1 mi
34Leonard Splaine Co.544.9★ (1,060)20 mi
35Michael & Son Services544.9★ (1,501)22 mi
36PestNow544.6★ (2,654)23 mi
37Hometrust Remodeling544.8★ (92)18 mi
38Crawl Space Brothers544.4★ (5)15 mi
39Attic Insulation DC Pro535.0★ (3)In Washington, D.C.
40Senate Termite & Pest Control535.0★ (6)18 mi
41Home Paramount Pest Control534.7★ (163)20 mi
42Maryland Spray Foam Insulation535.0★ (23)13 mi
43Home Energy Savings Solutions - Maryland535.0★ (53)11 mi
44Terra Insulation | Insulation Contractor Bethesda535.0★ (27)7 mi
45Extreme Spray Foam of North Potomac535.0★ (16)5 mi
46Home Paramount Pest Control534.8★ (107)22 mi
47Super Foam Usa535.0★ (15)13 mi
48Eko Smart Solutions534.4★ (7)7 mi
49Energy Efficiency Experts535.0★ (6)In Washington, D.C.
50Hyper Roofing525.0★ (35)7 mi

Also serving Washington, D.C.

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.

Unranked insulation contractors serving Washington, D.C.
BusinessGoogle ratingDistance
Alexandria Home Improvement, LLC5.0★ (90)In Washington, D.C.
American Home Contractors4.9★ (3,700)In Washington, D.C.
American Roofing and Spray FoamIn Washington, D.C.
Capitol Improvements Washington DC - Roofing | Siding | Doors5.0★ (66)In Washington, D.C.
DC Drywall Contractors4.6★ (11)In Washington, D.C.
Discount Energy ServicesIn Washington, D.C.
Foremost Attic Clean Up Llc5.0★ (2)19 mi
Insulation Service Washington DC5.0★ (2)In Washington, D.C.
JM INSULATION LLC5.0★ (2)13 mi
L & C Spray Foam Insulators5.0★ (2)17 mi
MCL Construction, LLC5.0★ (2)7 mi
Ocean Fireproofing5.0★ (2)6 mi
Osman Painting and Remodel5.0★ (2)14 mi
Perfect Insulation AssistanceIn Washington, D.C.
Rampart Spray Foam InsulationIn Washington, D.C.
Stop Leak Roofing Installation & Repair5.0★ (70)In Washington, D.C.
Sunshine Contracting Corporation4.7★ (301)In Washington, D.C.
Xcelus Building SystemsIn Washington, D.C.
XPSA5.0★ (1)In Washington, D.C.
Zen Windows Washington DC5.0★ (119)In Washington, D.C.

How much do insulation contractors cost in Washington, D.C.?

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

How much do insulation contractors cost in Washington, D.C.?
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 Washington, D.C. insulation contractors

We scored 136 Washington, D.C. 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Washington, D.C. data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Insulation contractors in Washington, D.C.: frequently asked questions

Who is the best insulation contractor in Washington, D.C.?

By CR Score, the highest-ranked insulation contractor in Washington, D.C., DC is Senate Termite & Pest Control with a CR Score of 60/100. It has 4.6★ from 2,638 Google reviews. It is open 24/7. Crawl Space Brothers (#2) and EcoShield Pest Solutions (#3) follow. We ranked 136 insulation contractors on ten factors, last updated October 22, 2026.

How many insulation contractors are there in Washington, D.C.?

ContractorsRanked ranks 136 insulation contractors serving Washington, D.C., DC. 10 of them are based in Washington, D.C.; 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 Washington, D.C. are open 24/7?

22 ranked insulation contractors in Washington, D.C. post 24/7 hours. The highest-ranked are Senate Termite & Pest Control (#1), Crawl Space Brothers (#2) and Green Pest Services (#10). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Washington, D.C. work on weekends?

75 of 136 ranked insulation contractors post Saturday hours and 32 post Sunday hours. The highest-ranked open Saturdays are Senate Termite & Pest Control (#1), Crawl Space Brothers (#2) and EcoShield Pest Solutions (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Washington, D.C.?

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 Washington, D.C.. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Washington, D.C. insulation contractors have?

The median Google rating among 136 rated insulation contractors in Washington, D.C. is 4.9★, with a median of 33 reviews. EcoShield Pest Solutions has the most, 9,707 reviews, and ranks #3. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do insulation contractors outside Washington, D.C. count in this ranking?

Yes, if they are within 25 mi of the Washington, D.C. 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 Washington, D.C.

  1. October 2026: CR Scores recalculated for 136 insulation contractors serving Washington, D.C..

More insulation contractors and Washington, D.C. pages

Other trades in Washington, D.C.