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Insulation Contractors · Spartanburg, SC/Updated June 13, 2026

The Best Insulation Contractors in Spartanburg, SC

From spray foam to traditional insulation, these contractors offer the best services Spartanburg has to offer.

Editorially independent9 companies evaluated
cover story
★ Editor's ChoiceSouth Carolina Spray Foam Insulation
96Score
Latest update · June 13, 2026: Initial ranking published. 9 Spartanburg-metro insulation contractors businesses evaluated, top 8 ranked by Vetted Score.

Insulation is a key component in maintaining comfortable and energy-efficient homes, especially in Spartanburg's varying climate. Choosing the right insulation contractor can significantly impact your home's energy bills and comfort levels.

We evaluated nine insulation contractors in Spartanburg based on their customer reviews, ratings, and service offerings. Our list reflects a range of options, ensuring you can find the right fit for your insulation needs.

9insulation contractors evaluated in Spartanburg
4.75average rating across the field
93customer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does insulation contractors cost in Spartanburg? See the price breakdown →

Our top picks

At a glance · three categories
Editor's Choice
96Score

South Carolina Spray Foam Insulation

★★★★★5.0(20 reviews)

With a perfect rating of 5 from 20 reviews, South Carolina Spray Foam Insulation is highly praised for its quality workmanship and customer service.

Read full review
Best Value
95Score

Bonham Insulating Company

★★★★★4.7(24 reviews)

Bonham Insulating Company boasts a 4.7 rating from 24 reviews, with customers often highlighting their competitive pricing and reliable service.

Read full review
Most Reviewed
94Score

Extreme Spray Foam of Spartanburg

★★★★★5.0(11 reviews)

Extreme Spray Foam of Spartanburg holds a perfect rating of 5 from 11 reviews, with many customers praising their attention to detail and thoroughness.

Read full review

All 8, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
5.0★★★★★
20Spray foam insulation projects
2
95Score
4.7★★★★★
24Affordable insulation solutions
3
94Score
5.0★★★★★
11High-quality spray foam insulation
4
92Score
5.0★★★★★
8Personalized customer service
5
89Score
4.8★★★★★
11Reliable insulation products
6
87Score
4.7★★★★★
14Commercial insulation projects
7
82Score
5.0★★★★★
1Risk-takers looking for new options
8
78Score
3.8★★★★★
4Budget-conscious clients
Methodology

How we evaluated all 9 insulation contractors.

To create this ranking, we analyzed customer feedback and ratings from various review platforms, focusing on overall satisfaction and service quality. Each contractor's performance was scored on a scale of 0 to 100, with no business paying for placement in our rankings.

Our rankings are refreshed monthly to incorporate the latest reviews and ratings, ensuring you have the most current information when choosing an insulation contractor in Spartanburg.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

South Carolina Spray Foam Insulation

★★★★★5.0(20 reviews)
96Score

With a perfect rating of 5 from 20 reviews, South Carolina Spray Foam Insulation is highly praised for its quality workmanship and customer service. Clients commend the team's professionalism and efficiency, making them an excellent choice for spray foam insulation projects. However, their higher pricing may not suit every budget.

Pros

  • Highly rated customer service
  • Expertise in spray foam
  • Efficient project completion

Cons

  • Higher pricing
  • Availability may vary
Best forSpray foam insulation projects
Service areaSpartanburg and surrounding areas
Typical pricing$1.50 to $3.00 per square foot
2
Best Value

Bonham Insulating Company

★★★★★4.7(24 reviews)
95Score

Bonham Insulating Company boasts a 4.7 rating from 24 reviews, with customers often highlighting their competitive pricing and reliable service. They excel in a range of insulation solutions, making them a versatile choice for homeowners. A caveat is that their availability can be limited during peak seasons. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is affordable insulation solutions. It serves Spartanburg and nearby counties, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are limited availability during peak seasons and some reports of scheduling issues.

Pros

  • Competitive pricing
  • Reliable service
  • Wide range of insulation options

Cons

  • Limited availability during peak seasons
  • Some reports of scheduling issues
Best forAffordable insulation solutions
Service areaSpartanburg and nearby counties
Typical pricing$0.50 to $1.50 per square foot
3
Most Reviewed

Extreme Spray Foam of Spartanburg

★★★★★5.0(11 reviews)
94Score

Extreme Spray Foam of Spartanburg holds a perfect rating of 5 from 11 reviews, with many customers praising their attention to detail and thoroughness. They are particularly well-suited for homeowners seeking high-quality spray foam insulation. However, their recent growth means they have fewer reviews compared to more established competitors. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is high-quality spray foam insulation. It serves Spartanburg and surrounding areas, with $1.50 to $3.00 per square foot pricing, and the honest trade-offs are thin review base and limited service history.

Pros

  • Attention to detail
  • Thorough installation process
  • Great customer feedback

Cons

  • Thin review base
  • Limited service history
Best forHigh-quality spray foam insulation
Service areaSpartanburg and surrounding areas
Typical pricing$1.50 to $3.00 per square foot
4

Koala Insulation of Spartanburg

★★★★★5.0(8 reviews)
92Score

With a 5 rating from 8 reviews, Koala Insulation of Spartanburg is praised for its friendly staff and effective insulation solutions. Customers appreciate the personalized service and quick response times. However, their limited number of reviews may make some potential clients hesitant. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is personalized customer service. It serves Spartanburg and nearby regions, with $1.00 to $2.50 per square foot pricing, and the honest trade-offs are limited review base and less established in the market.

Pros

  • Friendly and knowledgeable staff
  • Personalized service
  • Quick response times

Cons

  • Limited review base
  • Less established in the market
Best forPersonalized customer service
Service areaSpartanburg and nearby regions
Typical pricing$1.00 to $2.50 per square foot
5

Blue Ridge Building Products

★★★★★4.8(11 reviews)
89Score

Blue Ridge Building Products has a solid rating of 4.8 from 11 reviews. Customers often commend their professionalism and the quality of their insulation products. They are a strong choice for those seeking reliable insulation options. However, some clients have noted occasional delays in project timelines. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is reliable insulation products. It serves Spartanburg and surrounding areas, with $0.75 to $2.00 per square foot pricing, and the honest trade-offs are occasional project delays and limited service offerings.

Pros

  • Professional service
  • Quality insulation products
  • Good customer feedback

Cons

  • Occasional project delays
  • Limited service offerings
Best forReliable insulation products
Service areaSpartanburg and surrounding areas
Typical pricing$0.75 to $2.00 per square foot
6

Foam Insulation Company

★★★★★4.7(14 reviews)
87Score

Foam Insulation Company holds a 4.7 rating from 14 reviews, with many customers praising their knowledgeable staff and effective insulation solutions. They are well-regarded for their work in both residential and commercial settings. However, their higher pricing may not appeal to budget-conscious homeowners. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is commercial insulation projects. It serves Spartanburg and surrounding regions, with $1.50 to $3.00 per square foot pricing, and the honest trade-offs are higher pricing and limited residential focus.

Pros

  • Knowledgeable staff
  • Effective insulation solutions
  • Good for commercial work

Cons

  • Higher pricing
  • Limited residential focus
Best forCommercial insulation projects
Service areaSpartanburg and surrounding regions
Typical pricing$1.50 to $3.00 per square foot
7

Wood Insulating Co Inc

★★★★★5.0(1 reviews)
82Score

Wood Insulating Co Inc has a perfect rating of 5 from just 1 review, showcasing their potential for quality service. However, with such a thin review base, their reliability is still unproven. They may be a good option for those willing to take a chance on a new provider. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is risk-takers looking for new options. It serves Spartanburg area, with $1.00 to $2.00 per square foot pricing, and the honest trade-offs are very thin review base and unproven reliability.

Pros

  • Perfect rating from a customer
  • Potential for quality service

Cons

  • Very thin review base
  • Unproven reliability
Best forRisk-takers looking for new options
Service areaSpartanburg area
Typical pricing$1.00 to $2.00 per square foot
8

Finley Insulators

★★★★★3.8(4 reviews)
78Score

Finley Insulators has a rating of 3.8 from 4 reviews, with some customers appreciating their basic insulation services. However, many have reported issues with communication and timeliness, making them a less reliable choice for those seeking prompt service. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is budget-conscious clients. It serves Spartanburg and surrounding areas, with $0.50 to $1.50 per square foot pricing, and the honest trade-offs are communication issues and timeliness concerns.

Pros

  • Basic insulation services
  • Affordable options

Cons

  • Communication issues
  • Timeliness concerns
Best forBudget-conscious clients
Service areaSpartanburg and surrounding areas
Typical pricing$0.50 to $1.50 per square foot
Before you book

How to choose an insulation contractor in Spartanburg

Selecting the right insulation contractor involves several key factors. Consider the following tips to ensure you make an informed decision.

Check Ratings and Reviews

Look for contractors with high ratings and positive customer feedback to ensure quality service.

Evaluate Experience

Choose contractors with a proven track record in the insulation industry to ensure expertise.

Ask About Materials Used

Inquire about the types of insulation materials they offer to find the best fit for your home.

Get Multiple Quotes

Comparing quotes from different contractors can help you find the best value for your insulation needs.

What it costs

What insulation costs in Spartanburg

The cost of insulation services in Spartanburg can vary based on the type of insulation and the size of the project. Here’s a general idea of what to expect.

Spray Foam Insulation$1.50 to $3.00 per square foot, depending on the thickness and material used.
Fiberglass Batts$0.50 to $1.00 per square foot, a common and cost-effective option.
Blown-In Insulation$1.00 to $2.00 per square foot, ideal for attics and hard-to-reach spaces.
Foam Board Insulation$1.00 to $2.50 per square foot, providing excellent energy efficiency.

Frequently asked questions

How much does insulation cost in Spartanburg?

Insulation costs typically range from $0.50 to $3.00 per square foot, depending on the type and complexity of the installation.

What types of insulation are available?

Common types include spray foam, fiberglass batts, blown-in insulation, and foam board.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most Spartanburg homes: South Carolina Spray Foam Insulation

For those seeking top-notch insulation services in Spartanburg, South Carolina Spray Foam Insulation, Bonham Insulating Company, and Extreme Spray Foam of Spartanburg stand out. Each offers exceptional service and quality, making them the best choices for homeowners looking to enhance their insulation.