Latest update · June 13, 2026: Initial ranking published. 8 Spartanburg-metro insulation contractors businesses evaluated, top 7 ranked by Vetted Score.
Proper insulation plays a significant role in maintaining comfortable temperatures in Spartanburg, especially during the hot summers and chilly winters. With only eight providers evaluated in the metro area, the competition is thin, making it crucial to choose wisely.
We ranked the top insulation contractors based on their Vetted Scores, which reflect customer ratings and review counts. The leader, South Carolina Spray Foam Insulation, holds a perfect score of 5 stars from 20 reviews, showing a clear distinction from the rest of the field.
8insulation contractors evaluated in Spartanburg
4.71average rating across the field
87customer reviews analyzed
Cityvetted analysis of public Google review data, updated June 13, 2026.
With a perfect rating of 5 stars from 20 reviews, South Carolina Spray Foam Insulation is highly praised for its responsiveness and quality workmanship.
We evaluated insulation contractors in Spartanburg by analyzing their customer reviews, overall ratings, and the number of reviews. Each business's Vetted Score is a direct reflection of its service quality as perceived by clients.
No business pays for placement in our rankings. We refresh our evaluations monthly to ensure the information remains accurate and up-to-date, giving you a reliable resource for making your decision.
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.
With a perfect rating of 5 stars from 20 reviews, South Carolina Spray Foam Insulation is highly praised for its responsiveness and quality workmanship. Customers appreciate the thoroughness of the team, making it best for homeowners seeking reliable insulation solutions. However, the limited number of reviews may leave some potential clients cautious.
Pros
Excellent customer service
High-quality workmanship
Responsive team
Cons
Limited review base
Best forHomeowners seeking reliable insulation solutions
Koala Insulation of Spartanburg also holds a 5-star rating, but from 13 reviews, indicating a strong reputation among its customers. Reviewers commend the affordability and efficiency of their services. This makes it ideal for budget-conscious homeowners wanting quality insulation. Still, the fewer reviews compared to competitors may raise some trust issues.
Bonham Insulating Company has a solid rating of 4.7 stars from 23 reviews. Customers appreciate the knowledgeable staff and effective insulation solutions. This company is great for those looking for a well-reviewed option in Spartanburg. However, some clients have noted delays in scheduling, which could be a drawback for urgent projects.
Foam Insulation Company has a respectable 4.7-star rating from 15 reviews. Reviewers highlight the professionalism of the crew and effective insulation techniques. This company is suitable for those seeking good service but with a slightly thinner review base, trust may still be building. 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 homeowners looking for professional service. It serves Spartanburg, SC, with $1,400 to $3,100 pricing, and the honest trade-offs are thinner review base.
Pros
Professional crew
Effective techniques
Cons
Thinner review base
Best forHomeowners looking for professional service
Blue Ridge Building Products has a 4.8-star rating with 11 reviews. Customers appreciate the quality of materials used and the installation process. This company is a good option for those prioritizing high-quality products. However, the lower review count may leave 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 clients prioritizing quality materials. It serves Spartanburg, SC, with $1,600 to $3,300 pricing, and the honest trade-offs are lower review count.
Wood Insulating Co Inc holds a perfect 5-star rating, but with only 1 review, it is promising yet unproven. The single review speaks highly of their service, suggesting potential for quality work. However, the lack of multiple reviews means trust is not fully established. 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 early adopters seeking new options. It serves Spartanburg, SC, with $1,500 to $3,000 pricing, and the honest trade-offs are unproven track record.
Finley Insulators has a 3.8-star rating from 4 reviews. While some customers have praised their service, others pointed out issues with communication and timely completion. This company could be an option for those willing to take a chance, but the mixed feedback raises concerns about reliability. 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 clients willing to take a chance. It serves Spartanburg, SC, with $1,200 to $2,800 pricing, and the honest trade-offs are communication issues and timeliness concerns.
How to choose an insulation contractor in Spartanburg
Selecting the right insulation contractor involves looking beyond just ratings. Here are key factors to consider when making your choice.
Review Count
Prioritize contractors with a higher number of reviews. A larger sample size can indicate consistent service quality.
Rating Consistency
Examine the ratings closely. A perfect score with fewer reviews may not be as reliable as a slightly lower score with more feedback.
Specialization
Consider contractors who specialize in the type of insulation you need. Different materials and methods can impact efficiency and cost.
What it costs
What insulation costs in Spartanburg
Insulation costs can vary based on the type and size of the project. Here are some general pricing tiers you might expect in Spartanburg.
Blown-in Insulation$1 to $2 per square foot, depending on the material used.
Spray Foam Insulation$1.50 to $3 per square foot, offering superior air sealing and insulation.
Fiberglass Batts$0.50 to $1.50 per square foot, a common choice for attics and walls.
Reflective or Radiant Barrier$0.75 to $2 per square foot, useful in hot climates to reduce cooling costs.
Frequently asked questions
How much does insulation installation cost in Spartanburg?
Insulation installation costs typically range from $1,500 to $3,500, depending on the size of the home and the type of insulation used.
What is the average rating of insulation contractors in Spartanburg?
The average rating among the evaluated insulation contractors in Spartanburg is 4.3 stars, with a spread of 1.2 stars among the ranked businesses.
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: <strong>South Carolina Spray Foam Insulation</strong>
South Carolina Spray Foam Insulation takes the top spot with a perfect 5-star rating based on 20 reviews, showcasing strong customer satisfaction. Following closely is Koala Insulation of Spartanburg, also with a 5-star rating but from 13 reviews, indicating its reliability despite a smaller sample size. Rounding out the trio is Bonham Insulating Company, rated 4.7 from 23 reviews, making it a solid choice for those seeking proven service with a larger review base.
Cityvetted
