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Home Additions · Charleston, SC/Updated June 13, 2026

The Best Home Addition Contractors in Charleston, SC

Charleston homeowners seeking to expand their living spaces will find the best home addition contractors here, each with unique strengths.

MHMaya Hendricks · Home Services Editor
Updated June 13, 2026 · Next review July 2026
Editorially independent5 companies evaluated
cover story
★ Editor's ChoiceO'Connor Homes
96Score
Latest update · June 13, 2026: Initial ranking published. 5 Charleston-metro home additions businesses evaluated, top 5 ranked by Vetted Score.

Home additions can transform a house into the perfect living space, providing the extra room you need for a growing family or lifestyle changes. Charleston's vibrant market offers various skilled contractors ready to bring your vision to life, ensuring quality, craftsmanship, and satisfaction.

We evaluated local home addition contractors based on customer reviews, service quality, and overall satisfaction. Our list reflects the top providers in the Charleston area, focusing on those with proven records of excellence and reliability.

5home addition contractors evaluated in Charleston
4.94average rating across the field
197customer reviews analyzed

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

How much does home additions cost in Charleston? See the price breakdown →

Our top picks

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

O'Connor Homes

★★★★★5.0(58 reviews)

With a perfect rating of 5 from 58 reviews, O'Connor Homes stands out for its exceptional customer service and quality craftsmanship.

Read full review
Best Value
95Score

Peartree Homes also boasts a perfect 5-star rating from 41 reviews, with clients appreciating their creativity and customization options.

Read full review
Most Reviewed
94Score

Oak Angel Builders

★★★★★5.0(29 reviews)

Oak Angel Builders has earned a 5-star rating from 29 reviews, with many praising their professionalism and craftsmanship.

Read full review

All 5, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
O'Connor Homes
O'Connor Homes
Editor's Choice
96Score
5.0★★★★★
58Comprehensive home addition projects
2
Peartree Homes | Charleston Custom Home Builder
95Score
5.0★★★★★
41Personalized home additions
3
Oak Angel Builders
Oak Angel Builders
Most Reviewed
94Score
5.0★★★★★
29Complex home addition projects
4
Bluebird Home Improvement
85Score
4.7★★★★★
62Budget-friendly home improvements
5
Southeastern Renovation
78Score
5.0★★★★★
7Small to medium home additions
Methodology

How we evaluated all 5 home addition contractors.

To identify the best home addition contractors, we analyzed customer feedback, ratings, and the number of reviews. Our goal is to present a transparent and honest ranking, ensuring that no business pays for placement. This list is updated monthly to reflect the most current data.

Each contractor was assessed for their quality of work, customer service, and project management. We aim to provide Charleston residents with the most reliable options for their home addition projects.

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

O'Connor Homes

★★★★★5.0(58 reviews)
96Score

With a perfect rating of 5 from 58 reviews, O'Connor Homes stands out for its exceptional customer service and quality craftsmanship. Customers frequently praise their attention to detail and ability to meet deadlines. They are best for those seeking a reliable partner for comprehensive home addition projects. However, their premium services may come at a higher price point than some competitors.

O'Connor Homes photo 1O'Connor Homes photo 2O'Connor Homes photo 3O'Connor Homes photo 4

Pros

  • Exceptional customer service
  • High-quality craftsmanship
  • Timely project completion

Cons

  • Higher price point
  • Limited availability during peak seasons
Best forComprehensive home addition projects
Service areaCharleston, SC
Typical pricing$10,000 to $150,000
2
Best Value

Peartree Homes | Charleston Custom Home Builder

★★★★★5.0(41 reviews)
95Score

Peartree Homes also boasts a perfect 5-star rating from 41 reviews, with clients appreciating their creativity and customization options. They excel in providing tailored solutions for home additions, making them an excellent choice for homeowners looking to personalize their spaces. A potential downside is their availability can be limited due to high demand.

Peartree Homes | Charleston Custom Home Builder photo 1Peartree Homes | Charleston Custom Home Builder photo 2Peartree Homes | Charleston Custom Home Builder photo 3Peartree Homes | Charleston Custom Home Builder photo 4

Pros

  • Creative designs
  • Custom solutions
  • Responsive communication

Cons

  • Limited availability
  • Higher demand may lead to delays
Best forPersonalized home additions
Service areaCharleston, SC
Typical pricing$10,000 to $70,000
3
Most Reviewed

Oak Angel Builders

★★★★★5.0(29 reviews)
94Score

Oak Angel Builders has earned a 5-star rating from 29 reviews, with many praising their professionalism and craftsmanship. They are particularly known for their ability to handle complex projects with ease. While their smaller review base is promising, it remains unproven in larger scale projects, so it might be wise to discuss your specific needs in detail.

Oak Angel Builders photo 1Oak Angel Builders photo 2Oak Angel Builders photo 3Oak Angel Builders photo 4

Pros

  • Professionalism
  • Expert craftsmanship
  • Ability to handle complex projects

Cons

  • Smaller review base
  • Potentially limited experience with larger projects
Best forComplex home addition projects
Service areaCharleston, SC
Typical pricing$10,000 to $150,000
4

Bluebird Home Improvement

★★★★★4.7(62 reviews)
85Score

Bluebird Home Improvement has a solid rating of 4.7 from 62 reviews, with customers often highlighting their affordability and quality work. They are a great option for homeowners on a budget looking to make significant improvements. However, some reviews suggest that their scheduling can be a bit inconsistent. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is budget-friendly home improvements. It serves Charleston, SC, with $10,000 to $70,000 pricing, and the honest trade-offs are inconsistent scheduling and less experience with larger projects.

Bluebird Home Improvement photo 1Bluebird Home Improvement photo 2Bluebird Home Improvement photo 3Bluebird Home Improvement photo 4

Pros

  • Affordable pricing
  • Quality workmanship
  • Good customer service

Cons

  • Inconsistent scheduling
  • Less experience with larger projects
Best forBudget-friendly home improvements
Service areaCharleston, SC
Typical pricing$10,000 to $70,000
5

Southeastern Renovation

★★★★★5.0(7 reviews)
78Score

Southeastern Renovation has a perfect rating of 5 from 7 reviews, showcasing potential for quality work. Clients appreciate their responsiveness and willingness to work closely with homeowners. However, their limited review base means they are still a promising but unproven option for larger projects. 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 small to medium home additions. It serves Charleston, SC, with $10,000 to $70,000 pricing, and the honest trade-offs are limited review base and unproven for larger projects.

Southeastern Renovation photo 1Southeastern Renovation photo 2Southeastern Renovation photo 3Southeastern Renovation photo 4

Pros

  • Responsive communication
  • Willingness to collaborate
  • Positive customer feedback

Cons

  • Limited review base
  • Unproven for larger projects
Best forSmall to medium home additions
Service areaCharleston, SC
Typical pricing$10,000 to $70,000
Before you book

How to choose a home addition contractor in Charleston

Selecting the right contractor for your home addition is crucial. Consider factors like experience, customer reviews, and project scope to ensure you make the best choice.

Experience and Expertise

Look for contractors with a solid track record in home additions, ensuring they have the necessary skills and knowledge.

Customer Reviews

Pay attention to feedback from past clients to gauge satisfaction levels and the quality of work provided.

Portfolio of Past Projects

Request to see examples of previous home additions to assess the contractor's style and capabilities.

Clear Communication

Choose a contractor who communicates effectively and is willing to discuss your ideas and concerns.

What it costs

What home additions cost in Charleston

The cost of home additions in Charleston varies widely based on the scope of the project, materials used, and contractor rates. Understanding the pricing tiers can help you budget effectively.

Small Additions (e.g., extra room)$10,000 to $30,000
Medium Additions (e.g., garage or sunroom)$30,000 to $70,000
Large Additions (e.g., full second story)$70,000 to $150,000
Custom ProjectsPrices vary significantly based on design and specifications.

Frequently asked questions

How much does home addition cost in Charleston?

$10,000 to $150,000 depending on the scope and complexity of the project.

What should I look for in a home addition contractor?

Experience, customer reviews, and a solid portfolio are key factors to consider.

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 Charleston homeowners: O'Connor Homes

For those seeking the best overall experience, O'Connor Homes is the top choice, offering unmatched customer service and craftsmanship. For personalized projects, Peartree Homes stands out as the best value. If you need to tackle complex additions, Oak Angel Builders is highly recommended, showcasing professionalism and expertise.

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