---
title: "Castillo Insulation"
description: "Castillo Insulation is a Danbury, Connecticut insulation company whose site lists spray foam, soundproofing, fiberglass batts and blown-in cellulose and fi"
doc_version: "2026-10-19"
last_updated: "2026-10-19"
---

# Castillo Insulation

**Trade:** Insulation & Weatherization · **Address:** 97 Golden Hill Rd, Danbury, CT 06811 · **Phone:** (203) 947-5372 · **Website:** https://castilloinsulations.com/ · **Languages:** English, Spanish

**Rating: 3.1/5** (low confidence) — from 1 reviews across 6 sources.

## The honest read

Castillo Insulation is a Danbury, Connecticut insulation company whose site lists spray foam, soundproofing, fiberglass batts and blown-in cellulose and fiberglass for attics. The site claims 10 years in business and offers free estimates. The Better Business Bureau gives it an A+.

Its written review is a June 2023 Angi account: the customer wrote that the crew replaced the insulation in a laundry room ceiling, arrived on time, did the work quickly, and that they would hire Castillo Insulation Company again.

**Strengths:**
- On-time work — a June 2023 customer said the crew arrived on time

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Better Business Bureau grade A+ _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ct/bethel/profile/insulation-contractors/castillo-insulation-llc-0111-110090980) — “Better Business Bureau grade: A+”
- The company's site lists spray foam, soundproofing, fiberglass and blown-in insulation _(confidence: medium)_
  - [Official Website](https://castilloinsulations.com) — “About (self-reported, verbatim): Services Our Insulation Services View All Services Spray Foam Insulation Open & closed cell foam applicatio…”
- The company's site claims 10 years in business and offers free estimates _(confidence: medium)_
  - [Official Website](https://castilloinsulations.com) — “Stated offer (self-reported): free estimates”
  - [Official Website](https://castilloinsulations.com) — “Self-reported 10 years in business”
- A June 2023 customer had the insulation in a laundry room ceiling replaced _(confidence: medium)_
  - [Angi](https://www.angi.com/companylist/us/ct/danbury/castillo-insulation-llc-reviews-1.htm) — “Nice job replacing the insulation in my laundry room ceiling. Professional and friendly. They arrived on time and the work was done expediti…”
- Specializes in Insulation & Weatherization _(confidence: medium)_
  - [Official Website](https://castilloinsulations.com) — “About (self-reported, verbatim): Services Our Insulation Services View All Services Spray Foam Insulation Open & closed cell foam applicatio…”
  - [Angi](https://www.angi.com/companylist/us/ct/danbury/castillo-insulation-llc-reviews-1.htm) — “Nice job replacing the insulation in my laundry room ceiling. Professional and friendly. They arrived on time and the work was done expediti…”

## License

Status: **not_found** — verified against the official CT state registry, never self-reported.
Re-check at the official registry: https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx

## Sources

- [Reddit](https://www.reddit.com/r/SantaBarbara/comments/1cgh9k4/1029_castillo_st/): 0 community mentions discussing this business
- [Google](https://www.google.com/maps/search/?api=1&query=Castillo%20Insulation&query_place_id=ChIJMS3gHSr_54kRu0H7mNuxwtM): Listed on this source
- [Better Business Bureau](https://www.bbb.org/us/ct/bethel/profile/insulation-contractors/castillo-insulation-llc-0111-110090980): Listed on this source
- [Angi](https://www.angi.com/companylist/us/ct/danbury/castillo-insulation-llc-reviews-1.htm): 5.0★ from 1 ratings
- [HomeAdvisor](https://www.homeadvisor.com/rated.ALCustomBuildersLLC.110580995.html): 5.0★ from 1 ratings
- [Official Website](https://castilloinsulations.com): 10 yrs in business · Self-reported profile and service details

## Recent reviews

- **Angi · Gail L. · 2023-06-01**: Nice job replacing the insulation in my laundry room ceiling. Professional and friendly. They arrived on time and the work was done expeditiously. Iâ m very happy with the results and would hire Castillo Insulation Company again.

---

Data freshness: last scanned 2026-10-19T00:22:47.138Z.
Cite as: Castillo Insulation — Tavlee (https://tavlee.com/contractor/castillo-insulation-danbury)
Source: https://tavlee.com/contractor/castillo-insulation-danbury

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