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Abacus

Boston Renovation Contractors
Ranked #7 in Boston | Grade B+
4.90 (83 reviews)

Abacus

Abacus provides residential and multifamily renovations with emphasis on planning, coordination, and workmanship. Projects range from bathroom remodels to large-scale condo building repairs, including roofing, siding, and restoration.

Why Homeowners Choose This Business

Known for consistent communication, solid workmanship, and thoughtful project management. They aim to keep timelines and maintain tidy, respectful work areas while addressing issues directly with owners and stakeholders.

Service Area

South Boston and surrounding Greater Boston neighborhoods.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Has more Google review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Roofing Contractor
  Service
  Commercial Service
  home renovation
  bathroom remodeling
  Full Gut Renovation
  condo renovation
  Multifamily Renovation
  Roof Replacement
  Siding replacement
  Fire damage restoration
  Water damage repair
  interior remodeling
  General Contractor Boston
  Building Envelope Repair

Services include: bathroom and interior remodels, full-gut renovations, condo and multifamily project work, roofing and siding replacement, and fire/water damage restoration. They also assist with scopes, phasing, and coordination for occupied spaces.


Recent Reviews

4.90

(Based on 83 reviews)

Reviews frequently mention clear and consistent communication, with updates at each phase. Many customers note projects finished on schedule and workmanship that meets or exceeds expectations. Homeowners also appreciate the team’s respect for occupied spaces and efforts to minimize disruption. Pricing is described as fair for the quality delivered.

Google Review
Victoria G. on Abacus

I used Abacus for a complete bathroom remodel and couldn’t be happier with the experience. The entire team was courteous, respectful, and highly professional. Communication was excellent throughout the project, with clear updates on progress and any issues that arose. Since this was my only bathroom, they were especially thoughtful about minimizing disruption. Their pricing was very fair for the level of quality and craftsmanship delivered. Even though this was a relatively small project for them, they made me feel like a top priority from start to finish. The final result was a beautiful bathroom, clearly done right and built to last.

Google Review
Kelly Kenneally on Abacus

I had an outstanding experience working with Abacus Builders. From start to finish, the communication was clear, professional, and consistent. Every phase of the project was completed on schedule, and the craftsmanship exceeded my expectations. The team was respectful of my home, detail-oriented, and truly committed to delivering quality work. I couldn’t be happier with the results and would highly recommend them to anyone looking for a reliable, skilled contractor.

Google Review
Tristan Rock on Abacus

I have had the pleasure of working with Mark and his team on two occasions. It's one thing to hire a firm to work on a rental or a flip, but when it is your own home, you only want the very best. The Abacus team took the time to meet with my wife and me. We discussed our vision and ultimate goals for the proposed remodel. Mark came back with several options, including some great ideas that we hadn't considered. Having an experienced set of eyes review our ideas and plans, and discuss all the available options with us, was huge. We really did feel that the Abacus team was genuinely invested in our remodel. I have recommended Mark & Abacus to numerous friends and family, and I have no hesitation in doing so.

Google Review
John Maggio on Abacus

I can’t say enough good things about Abacus Builders. They are the most reliable, go to builder and developer in South Boston and Greater Boston. They show up, do the work, and do it right. I have worked with them on multiple projects, and every experience has been smooth, professional, and exactly what you expect from a top-tier contractor. Every client I have referred to Abacus have all said the same thing, they were impressed with the quality, the honesty, and the way Abacus goes above and beyond from start to finish. Communication is sharp, timelines are hit, and the craftsmanship is first class. If you want a contractor you don’t have to worry about, Abacus is the one.

Google Review
Deirdre Fenick on Abacus

Abacus planned, managed, and executed on a large scale condo property construction project for us. At issue was poor workmanship defects in the original installation of the water vapor barrier from the original development, that was allowing water to get into units.

The Abacus team was highly engaged and responsive as we worked through the strategy to address the problem prior to them being on site, and this got quite detailed as we investigated the extent of the risk of water with a structural engineer, Abacus and our property mgmt team. At all times Abacus was a partner in answering our questions, investigating options, such as new evolutions in the water vapor barriers, and even removing windows to understand the extend of the flashing needed all prior to even kicking the project off.

This partnership continued through the project. The Abacus team are strong communicators, and they worked with us to ease the burden, and demonstrated flexibility when working with individual unit owners.

Abacus also was sensitive to our budget mgmt. As a condo board we were committed to keeping the project within budget. Abacus respected this, and worked with us, to enable us to understand change orders, and prioritize work / expense. In the end we stayed within budget, and the work effort was fully completed to our satisfaction. (Meaning nothing material had to be traded off.)

I highly recommend Abacus as a partner in home construction projects.



Frequently Asked Questions

They work on bathroom remodels, interior updates, full-gut renovations, and larger condo or multifamily projects. They also take on roofing, siding, and select restoration needs tied to water or fire issues.

Customers report clear, regular updates and prompt responses to questions. The team discusses options and next steps before changes are made to keep timelines and budgets on track.

Yes, reviews note that they plan phases and take steps to reduce disruption in occupied spaces. This includes maintaining a clean jobsite and coordinating schedules around daily routines when possible.

Feedback indicates they collaborate on scope, materials, and sequencing to align with project goals. They may present options and ideas to solve layout or building challenges before work begins.

They are based in South Boston and serve the Greater Boston area. Availability for specific neighborhoods may vary by project size and timing.
 Verified Listing

Opening Hours


  • Monday 7:00 AM – 6:00 PM
  • Tuesday 7:00 AM – 6:00 PM
  • Wednesday 7:00 AM – 6:00 PM
  • Thursday 7:00 AM – 6:00 PM
  • Friday 7:00 AM – 6:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details


Business Rating
4.90 (83 reviews) FeaturedPro Business
Address
190 Old Colony Ave, Boston, MA 02127, USA, Boston, MA 02127, US
Business Type
general_contractor

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