89/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 501 Google reviews, the most Google reviews on this list (501).
- 5.0★ from 501 Google reviews
- Hours
- Mon–Sun 8 AM–7 PM
- Address
- 173 Green St, Emmaus, PA 18049
Best Insulation Contractors in Nazareth, PA (2026)
21 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Nazareth: CDA Inspection Services, CR Score 89/100; 5.0★ from 501 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): United Home Services, posts 24/7 hours; ranked #2 of 21.
- 5
Most-reviewed: Buss Paints, 101 Google reviews at 4.7★, the most of 21 ranked after CDA Inspection Services; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
21 Nazareth insulation contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 8 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 21 rated businesses.
Top 10 insulation contractors in Nazareth at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CDA Inspection Services | 89 | 5.0★ (501) | Emmaus, 17 mi away | Sat · Sun · Evenings | Overall |
| 2 | United Home Services | 86 | 4.4★ (89) | Whitehall Township, 13 mi away | 24/7 | Emergencies |
| 3 | High Point Insulation, LLC | 86 | 5.0★ (49) | Bethlehem, 10 mi away | Sat · Sun · Evenings | — |
| 4 | Lehigh Valley Insulation | 80 | 4.9★ (21) | Bethlehem, 9 mi away | Sat | — |
| 5 | Buss Paints | 80 | 4.7★ (101) | Emmaus, 17 mi away | Sat | Most reviews |
| 6 | Graves Brothers Home Improvement | 78 | 5.0★ (13) | Allentown, 14 mi away | 24/7 | — |
| 7 | USA Insulation of Lehigh Valley | 78 | 4.6★ (61) | Bethlehem, 7 mi away | — | — |
| 8 | PROJECT PROBONO LLC | 77 | 5.0★ (59) | Bethlehem, 6 mi away | — | — |
| 9 | Custom Weatherization LLC | 76 | 4.9★ (19) | Allentown, 8 mi away | — | — |
| 10 | Burke Home Services | 76 | 4.9★ (61) | Stroudsburg, 19 mi away | — | — |
The 21 best insulation contractors in Nazareth, 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 Whitehall Township, 13 mi away
86/100CR ScoreRanked #2 because of its Google rating and availability: 4.4★ from 89 Google reviews, open 24/7.
- 4.4★ from 89 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 382 Long Lane Rd, Walnutport, PA 18088
Based in Bethlehem, 10 mi away
86/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 49 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 8 AM–6 PM · Sun 9 AM–5 PM
Based in Bethlehem, 9 mi away
80/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 21 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 21 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat 7 AM–2 PM · Sun closed
- Address
- 920 Evans St, Bethlehem, PA 18015
#5 Buss Paints
Based in Emmaus, 17 mi away
80/100CR ScoreRanked #5 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
Based in Allentown, 14 mi away
78/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3477 Corporate Pkwy Suite 100, Center Valley, PA 18034
Based in Bethlehem, 7 mi away
78/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.6★ from 61 Google reviews, listed on Google as “Insulation contractor”.
- 4.6★ from 61 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 3400 Bath Pike Suite 201, Bethlehem, PA 18017
Based in Bethlehem, 6 mi away
77/100CR ScoreRanked #8 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
Based in Allentown, 8 mi away
76/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 19 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 19 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 1855 Weaversville Rd, Allentown, PA 18109
Based in Stroudsburg, 19 mi away
76/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 61 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1410 Spruce St, Stroudsburg, PA 18360
Based in Allentown, 10 mi away
76/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 17 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 942 Delaware Ave, Fountain Hill, PA 18015
Based in Perkasie, 23 mi away
75/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.5★ from 16 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 16 Google reviews
- Hours
- Mon–Sat 8 AM–7 PM · Sun closed
Based in Easton, 7 mi away
75/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.3★ from 19 Google reviews, listed on Google as “Insulation contractor”.
- 4.3★ from 19 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 40 Hilton St, Easton, PA 18042
Based in Easton, 3 mi away
74/100CR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 91 Google reviews, 91 Google reviews.
- 4.9★ from 91 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 5632 Sullivan Trail, Easton, PA 18040
Based in Allentown, 8 mi away
74/100CR ScoreRanked #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
Based in Allentown, 12 mi away
73/100CR ScoreRanked #16 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
Based in Allentown, 12 mi away
72/100CR ScoreRanked #17 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
Based in Washington, 19 mi away
70/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 7 Google reviews, listed on Google as “Contractor”.
- 4.7★ from 7 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 495 NJ-57, Port Murray, NJ 07865
Based in Stroudsburg, 19 mi away
69/100CR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 45 Google reviews, 45 Google reviews.
- 5.0★ from 45 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1410 Spruce St suite 12, Stroudsburg, PA 18360
#20 Riley Sales Inc
Based in Allentown, 9 mi away
68/100CR ScoreRanked #20 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
#21 Adams Plumbing
Based in Hellertown, 11 mi away
67/100CR ScoreRanked #21 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
Also serving Nazareth
18 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 |
|---|---|---|
| 123 Exteriors, Inc. | 17 mi | |
| 911 Crawl Space Repair & Insulation | 18 mi | |
| 911 crawl space repair and insulation | 19 mi | |
| Advanced Specialty Contractors | 5.0★ (1) | 11 mi |
| Alliance Mechanical Insulation LLC | 14 mi | |
| Alliance Mechanical Insulation, LLC | 16 mi | |
| Apex Insulation Services Inc. | 5.0★ (2) | 11 mi |
| Extreme Spray Foam of Allentown | 13 mi | |
| Homeworks | 10 mi | |
| ICA Insulation | 22 mi | |
| J R Drywall & Steel Framing | 17 mi | |
| J.W. Frey LLC | 5.0★ (2) | 11 mi |
| Keystone Insulators | 10 mi | |
| O | 5.0★ (1) | 13 mi |
| RPB HVAC | In Nazareth | |
| RPB HVAC LLC | 4.9★ (42) | In Nazareth |
| Sellair, LLC | 12 mi | |
| SJM Commercial Insulation | 12 mi |
How much do insulation contractors cost in Nazareth?
National price ranges in USD, not adjusted for Nazareth. 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 Nazareth insulation contractors
We scored 21 Nazareth 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 Nazareth 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 Nazareth: frequently asked questions
Who is the best insulation contractor in Nazareth?
By CR Score, the highest-ranked insulation contractor in Nazareth, PA is CDA Inspection Services with a CR Score of 89/100. 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 21 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Nazareth?
ContractorsRanked ranks 21 insulation contractors serving Nazareth, PA. Another 18 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Nazareth are open 24/7?
2 ranked insulation contractors in Nazareth 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 Nazareth work on weekends?
8 of 21 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 Nazareth?
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 Nazareth. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Nazareth insulation contractors have?
The median Google rating among 21 rated insulation contractors in Nazareth is 4.9★, with a median of 21 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 Nazareth count in this ranking?
Yes, if they are within 25 mi of the Nazareth 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 Nazareth
- October 2026: CR Scores recalculated for 21 insulation contractors serving Nazareth.
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