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Best Insulation Contractors in Fullerton, PA (2026)

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

The short answer

  1. 1

    Best overall in Fullerton: CDA Inspection Services, CR Score 92/100; 5.0★ from 501 Google reviews; open 7 days a week.

  2. 2

    Best for emergencies (open 24/7): United Home Services, posts 24/7 hours; ranked #2 of 25.

  3. 22

    Most-reviewed: Ace Handyman Services Central Bucks, 159 Google reviews at 5.0★, the most of 25 ranked after CDA Inspection Services; ranked #22.

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

25 Fullerton insulation contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 10 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 25 rated businesses.

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

Top 10 insulation contractors in Fullerton at a glance

Top 10 insulation contractors in Fullerton at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1CDA Inspection Services925.0★ (501)Emmaus, 7 mi awaySat · Sun · EveningsOverall
2United Home Services874.4★ (89)Whitehall Township, 8 mi away24/7Emergencies
3High Point Insulation, LLC875.0★ (49)Bethlehem, 5 mi awaySat · Sun · Evenings—
4Buss Paints834.7★ (101)Emmaus, 7 mi awaySat—
5Lehigh Valley Insulation814.9★ (21)Bethlehem, 6 mi awaySat—
6Graves Brothers Home Improvement805.0★ (13)Allentown, 6 mi away24/7—
7USA Insulation of Lehigh Valley784.6★ (61)Bethlehem, 5 mi away——
8Green Energy Guard774.5★ (16)Perkasie, 14 mi awaySat · Evenings—
9Keystone Spray Foam of Bethlehem774.9★ (17)Allentown, 5 mi away——
10Custom Weatherization LLC774.9★ (19)Allentown, 3 mi away——

The 25 best insulation contractors in Fullerton, 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.

  4. #4 Buss Paints

    Based in Emmaus, 7 mi away

    83/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.7★ from 101 Google reviews, listed on Google as “Insulation contractor”.

    • 4.7★ from 101 Google reviews
    Hours
    Mon–Thu 7:30 AM–5 PM · Fri 7:30 AM–6 PM · Sat 9 AM–2 PM · Sun closed
    Address
    327 Main St, Emmaus, PA 18049
    View profile for Buss Paints(610) 965-5466

  11. #11 PROJECT PROBONO LLC

    Based in Bethlehem, 7 mi away

    77/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “Insulation contractor”.

    • 5.0★ from 59 Google reviews
    Hours
    Mon–Fri 8 AM–9 AM · Sat–Sun closed
    Address
    2636 Butztown Rd Suite 2, Bethlehem, PA 18017
    View profile for PROJECT PROBONO LLC(877) 247-8327

  12. #12 ASI Professionals

    Based in Allentown, 1 mi away

    76/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.4★ from 11 Google reviews, listed on Google as “Insulation contractor”.

    • 4.4★ from 11 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    382-394 W Whitehall St, Allentown, PA 18102
    View profile for ASI Professionals(610) 797-9272

  15. #15 True Management LLC

    Based in Allentown, 7 mi away

    74/100CR Score

    Ranked #15 because of its Google rating and trade focus: 3.9★ from 13 Google reviews, listed on Google as “Insulation contractor”.

    • 3.9★ from 13 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    431 Clearfield St, Freemansburg, PA 18017
    View profile for True Management LLC(484) 866-8011

  20. #20 Philo Fireproofing Co.

    Based in Allentown, 15 mi away

    71/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.

    • 4.3★ from 6 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    1024 Easton Rd, Riegelsville, PA 18077
    View profile for Philo Fireproofing Co.(610) 749-2030

  23. #23 Riley Sales Inc

    Based in Allentown, 3 mi away

    69/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 8 Google reviews
    Hours
    Mon–Fri 7 AM–4 PM · Sat–Sun closed
    Address
    1660 E Race St, Allentown, PA 18109
    View profile for Riley Sales Inc(610) 264-1800

  24. #24 JJD Urethane Co.

    Based in Harleysville, 24 mi away

    69/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.

    • 4.5★ from 8 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    View profile for JJD Urethane Co.(215) 721-7663

  25. #25 Adams Plumbing

    Based in Hellertown, 8 mi away

    68/100CR Score

    Ranked #25 because of its Google rating and review volume: 4.1★ from 33 Google reviews, 33 Google reviews.

    • 4.1★ from 33 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    528 Main St, Hellertown, PA 18055
    View profile for Adams Plumbing(610) 838-8989

How much do insulation contractors cost in Fullerton?

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

How much do insulation contractors cost in Fullerton?
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 Fullerton insulation contractors

We scored 25 Fullerton 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 Fullerton 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 Fullerton: frequently asked questions

Who is the best insulation contractor in Fullerton?

By CR Score, the highest-ranked insulation contractor in Fullerton, PA is CDA Inspection Services with a CR Score of 92/100. It has 5.0★ from 501 Google reviews. It is open 7 days a week. United Home Services (#2) and High Point Insulation, LLC (#3) follow. We ranked 25 insulation contractors on 8 factors, last updated October 22, 2026.

Which insulation contractors in Fullerton are open 24/7?

2 ranked insulation contractors in Fullerton post 24/7 hours. The highest-ranked are United Home Services (#2) and Graves Brothers Home Improvement (#6). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in Fullerton work on weekends?

10 of 25 ranked insulation contractors post Saturday hours and 4 post Sunday hours. The highest-ranked open Saturdays are CDA Inspection Services (#1), United Home Services (#2) and High Point Insulation, LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in Fullerton?

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

What Google rating do Fullerton insulation contractors have?

The median Google rating among 25 rated insulation contractors in Fullerton is 4.9★, with a median of 19 reviews. CDA Inspection Services has the most, 501 reviews, and ranks #1. 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 Fullerton count in this ranking?

Yes, if they are within 25 mi of the Fullerton 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.

Can insulation contractors pay to rank higher on ContractorsRanked?

No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.

Update log for Fullerton

  1. October 2026: CR Scores recalculated for 25 insulation contractors serving Fullerton.

More insulation contractors and Fullerton pages

Other trades in Fullerton