Insulation contractors in Allentown, PA
Compare insulation contractors serving Allentown and the surrounding area. Review each contractor's services, ratings, and key details, then use the questions below to verify scope and pricing before booking estimates.
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ASI Professionals
382-394 W Whitehall St, Allentown, PA 18102
Allentown, PA-based ASI Professionals has a 5-star rating and provides a phone contact (610-797-9272); no website or service details are listed in the data.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
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Cleanup
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Lehigh Valley Insulation
920 Evans St, Bethlehem, PA 18015
Lehigh Valley Insulation offers attic, basement/garage, and new construction insulation for residential homes in Allentown, Bethlehem, and the Lehigh Valley, backed by a high rating and warmth-focused results, with a noted caution about workmanship in one review.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“NO JOB IS TOO BIG, OR SMALL Lehigh Valley Insulation will insulate everything from small cottages to larger homes.”
website: Shows breadth of residential work and scope.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
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USA Insulation of Lehigh Valley
3400 Bath Pike Suite 201, Bethlehem, PA 18017
USA Insulation of Lehigh Valley provides insulation installation services (attic, wall, and whole-home) with air sealing and injection foam in the Lehigh Valley/Allentown area, backed by positive homeowner reviews noting professionalism, neat workmanship, and solid energy-efficiency outcomes.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“They were professional and knowledgeable.”
review: Supports trust in the provider's staff and communication.
Workmanship
Excellent
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Excellent
IDI: Insulation Distributors Inc.
2162, 2198 Industrial Dr #103, Bethlehem, PA 18017
IDI: Insulation Distributors Inc. is a Bethlehem/Allentown-area insulation supplier offering spray foam insulation and other insulation materials, with a mixed history of customer reviews.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Wholesale Spray Foam Insulation Suppliers | IDI: Insulation Distributors Inc.”
website: Shows they clearly offer spray foam insulation products.
Workmanship
Mixed
Communication
Mixed
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Keystone Spray Foam of Bethlehem
942 Delaware Ave, Fountain Hill, PA 18015
PA-based attic insulation and spray foam contractor focused on energy efficiency and comfort, serving Fountain Hill, Abbottstown, Aaronsburg and nearby areas.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Attic insulation helps keep your home warmer in winter and cooler in summer, reducing the strain on your HVAC system and saving you money.”
website: Shows the energy-savings benefit of attic insulation, a core service
Workmanship
Ask for references
Communication
Not enough data
Scheduling
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Cleanup
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Alliance Mechanical Insulation, LLC
4480 Spring Hill Dr, Schnecksville, PA 18078
Bethlehem-area IDI Insulation location offers spray foam insulation with positive customer feedback on staff and delivery; rating is not provided.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Wholesale Spray Foam Insulation Suppliers Bethlehem PA”
website: Shows service area and primary product focus.
Workmanship
Ask for references
Communication
Excellent
Scheduling
Ask during quoting
Cleanup
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Custom Weatherization LLC
1855 Weaversville Rd, Allentown, PA 18109
Attic insulation and spray foam insulation specialist with PA locations (Fountain Hill, Abbottstown, Aaronsburg, Allentown) serving NJ, PA, DE, MD. Trustworthy staff praised in reviews; offers open-cell and closed-cell options and emphasizes energy efficiency and indoor comfort.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“The staff was courteous and knowledgeable and were able to answer any and all questions.”
review: Supports trustworthy communication and responsiveness from the provider.
Workmanship
Ask for references
Communication
Good
Scheduling
Ask during quoting
Cleanup
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Apex Insulation Services Inc.
730 2nd St, Catasauqua, PA 18032
Alliance Mechanical Insulation provides insulation services in Pennsylvania, including mechanical and industrial insulation, with ISNetworld membership and a focus on personal service.
Services offered
Trust signals
From reviews & website
“An approved member of ISNetworld”
website: Trust signal from industry credentialing.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Advanced Specialty Contractors
52 N 2nd St #1, Coplay, PA 18037
Provider in Coplay/Allentown area with limited public information.
Trust signals
Workmanship
Ask for references
Communication
Not enough data
Scheduling
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Cleanup
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Questions to ask insulation contractors in Allentown
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Plan before you hire
These pages help you build a shortlist, but they don't replace a proper scope discussion with each contractor. If you're still deciding what work your home needs, start with the insulation planning guide and ROI calculator.