Contractors/Delaware/Insulation Contractors
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Delaware Insulation Contractors

Looking for insulation contractors in Delaware? Below are 8 top-rated insulation contractors serving Delaware in 2026 — every one rated 4.0+ stars with 10 or more verified Google reviews. Compare ratings and review counts, then contact them directly by phone or website. No middleman, no lead fees.

Listings are sourced from public Google Business Profiles and sorted by rating. Are you a Delaware insulation contractor? Add your business free below.

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1

Koala Insulation of Newark

26 Albe Dr Suite 5, Newark, DE 19702, USA

4.9star

61 reviews

Reviews via Google

phone(302) 273-8476
2

Amira Contracting Inc

548 S Red Fox Cir, Middletown, DE 19709, USA

4.9star

58 reviews

Reviews via Google

phone(302) 464-0644
3

PJ Fitzpatrick

21 Industrial Blvd, New Castle, DE 19720, USA

4.8star

13,492 reviews

Reviews via Google

phone(866) 858-5928
4

C & C Drywall Contractors North Inc

730 Horsepond Rd, Dover, DE 19901, USA

4.8star

10 reviews

Reviews via Google

phone(302) 307-6400
5

Dixie's Insulation, LLC.

4765 Baker Rd, Bridgeville, DE 19933, USA

4.7star

12 reviews

Reviews via Google

phone(302) 745-5967
6

Energy Services Group

2 King Ct, New Castle, DE 19720, USA

4.4star

25 reviews

Reviews via Google

phone(800) 908-7000
7

Delmarva Insulation

22976 Sussex Ave, Georgetown, DE 19947, USA

4.3star

56 reviews

Reviews via Google

phone(302) 854-0344
8

1st State Insulation

9796 Nanticoke Business Park Dr, Greenwood, DE 19950, USA

4.1star

27 reviews

Reviews via Google

phone(302) 480-1520

Data sourced from Google Places. Updated April 12, 2026.

Hiring an Insulation Contractor in Delaware

Buildermuse currently lists 8 insulation contractors in Delaware, averaging 4.6 stars across 13,741 verified Google reviews. Every firm listed clears the 4.0-star bar, and with ratings this close together, review volume is the better tiebreaker — a 4.6 backed by hundreds of reviews usually beats a 5.0 with a dozen. Most of the crews above operate out of New Castle, Bridgeville, and Dover.

Delaware does not require a state-level general contractor license. Local jurisdictions (New Castle, Kent, Sussex counties) have their own requirements. Electrical, plumbing, and HVAC trades require state-level licensing. With no statewide license for this work, checking city and county requirements — plus active insurance — falls on you as the hiring party.

Labor is the biggest line item on most bids, and the Delaware market sets the floor: construction workers here average $36.02 an hour — about $74,932 a year — across 24,563 workers statewide, per Bureau of Labor Statistics data. Use that figure as a sanity check when comparing quotes — a bid priced far below market labor rates usually means subcontracted or uninsured crews.

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