Evan and the Abacus team did a great job on my project. They were proactive, detail-oriented, and very responsive to any questions/requests that I had. I also thought that the pricing was fair, and they were very up front about the costs. I will certainly work with them in the future for any contracting work.


I had to remodel a bathroom and address water damage on two lower floors and Abacus was an incredible partner – even when I was stuck on the other side of the world for the first two weeks of figuring out the plan and materials. Catrina was an amazing help with finding materials and finalizing the contract, and Evan was very responsive and helpful in understanding the problem and dealing with my insurance company. I’ve already signed on to do additional work on my deck with Abacus, and can’t recommend them highly enough!

- Liz M.

As the owner of a property management company located in South Boston; we have worked with Mark and the Abacus team for several years on multiple condo building projects, both interior and exterior

Various projects have included replacement window installation & new siding, exterior painting for multiple story buildings, deck repair and replacement and insurance claim restoration project including burst pipe remediation.

Mark and his team are equipped to take on larger projects that include multiples trades and coordination in occupied buildings. The Abacus team has consistently performed and excellent job with reliability and professionalism. Their rate are competitive and their service is outstanding

- Johnna Barry
President – Bridge Property Services

We had a fire next door and significant damage was caused to our building. Boston Fire came into our building and knocked out most of the windows and doors to fight the fire, ruining most of the building in the process.

Abacus did an excellent job repairing the building from a pretty miserable state, and made getting the job done just right their highest priority. Mark and Dave are a truly great team. They are thoughtful people, and did a great job on our building. Luis is definitely the guy you want doing your painting – he take the time as if it was his own home. Highly recommended.

- Jerry Adler

Beacon Hill Roof Deck

Abacus recently completed a new deck for our condo building on Beacon Hill after also arranging for replacement of our roof by McConomy Construction. The work was very capably performed. Abacus proved to be that all too rare contractor who did not over promise, did the work that they promised, did it when they promised, and did it well. We would engage them again without hesitation.

- Charles Dougherty

Impressed with the prompt communication and reliability of Abacus. Professional work teams that work with you no matter how small or big the project, show up, get the work done, and clean up well afterwards. Mark’s consistent communication via email made working with Abacus seamless. Thanks!

- Tara Tarr

We contracted with Abacus to help us build a new roof deck on our building in South Boston. During the permitting and negotiation process Abacus was incredibly professional and patient while we worked out the details of what we wanted and ensured everything was done by the books. They truly know how to navigate through various city regulations and zoning restrictions. The construction itself was executed to a high degree of craftsmanship and we are thrilled with the results. The workers always showed up on time and were respectful and courteous. Also, their pricing was very competitive relative to the three other quotes that we received. We would definitely hire Abacus again for future work and highly recommend them to anyone seeking to do any construction / rehab / remodeling.

- Jeffrey Santos

We hired Abacus to replace our back deck and install new crown molding in 4 rooms, and we couldn’t be happier with the finished product! The whole process was effortless from start to finish. We sent Mark a few photos of our deck and the rooms where we wanted to install crown molding. Within a couple of days we received a competitive quote that clearly outlined the details and costs, so we decided to hire them for the project. Before they started, Mark came out to discuss specific options about the deck and crown molding and helped us make sure we were happy with all of the plans before beginning the work. We scheduled a date and they started exactly when they said they would. Throughout the project the crew was very professional and friendly, and happy to answer our questions. They kept us up to date on project status and when we could expect the next steps to be completed. They had originally estimated the project would take 2 weeks and they did everything in only 6 days! They stuck to their original quote, and in fact, even came in under budget by a few hundred dollars. Every day we came home our house and the building common hallway were clean. The crew did a fantastic job about abiding by our building specific rules about work times etc, they are very professional and respectful. Overall this was the smoothest experience we’ve had with any contractor and wish we had found them sooner!

- David S.

Our association hired Abacus to redo our roof and gutters that was damaged and leaking due to storms last summer. We worked closely with Mark and Darren. Both were very responsive, very detail oriented, and did a great job on our roof. They made sure everything looks and works the way it should and that we were satisfied with all the details. They consulted with us on all aspects of the project which made it so much more pleasant to work with them. Catrina was also very helpful with administrative work such as updating the contract based on new requests we had or changes we did in material selection etc.. Overall we had a great experience working with them and would highly recommend Mark and his team.

- Ani A.

We worked with the great team at Abacus last fall to put a roof deck on our home in South Boston. Mark was very responsive in providing a detailed quote and quickly began the project as soon as permitting allowed. The general contractor on our job was Gerald McGuigan and I truly do not think there is a more patient or reachable contractor in the City. We had a few minor glitches with regard to the length of time it took to complete the project but in fairness some of the delay was due to additions and changes in the design that we made. We are now a year post deck completion and the great team at Abacus continues to respond to our questions and help with minor tweaks. We highly recommend this amazing company!

- Marcia H.

In November 2015 we purchased an old Victorian single family home in South Boston. Considering it was built in the 1890s this house was a complete overhaul from top to bottom. As part of this reno we also wanted to improve upon the outdoor space, including building a deck off the back of the house, creating easier access to the backyard and adding two roofdecks.

We looked at a couple of contractors, but we were advised by a few people in the industry to go with Mark Little and his team at Abacus because of their attention to detail and their passion for a project like ours. While we knew this was going to be a total renovation down to the studs, we loved the personality of the house and wanted to keep some the integrity of the original design. We didn’t want it to feel cookie cutter and/or just open it up and make it look like so many other places out there right now.When it came down to it, we knew we needed a contractor who understood our own vision, but could also provide additional suggestions and offer up ideas we hadn’t even thought of so we could make this the home of our dreams. After meeting with Mark for a walkthrough at our house, it was clear he and Abacus were the team for the job. From beginning to end, the folks at Abacus made this a positive and memorable experience.

Starting on day one they arrived on time and moved fast. We were shocked at how quickly they completed the demo and also how they would try and clean up at the end of each day – this was a common theme throughout the project. It’s a little thing, but really appreciated as we would stop in from time to time to check on progress. We liked that they were taking as much care with our home as we would if we were doing the work ourselves.

Throughout the process we had clear lines of communication with Mark Little and other key folks on-site (Gerald was a godsend!) which really helped as we had questions or they needed to prod us to get them answers. It was an open dialogue the whole time. And even more helpful is that they couldn’t have been more responsive when we would reach out via text, phone or email. That’s not to say there weren’t occasional hiccups from time to time (this is going to happen on any large scale project like this), but we always talked them through and figured out ways to correct them. The fact that we could promptly talk them through over the phone or in person was really important to us and Mark, as well.

Abacus also helped us stay on track by providing us a list of to-do’s with key dates when they needed answers or actual hardware/appliances in order for us to stay on track. We always tried to do our best to meet their deadlines, but even when we couldn’t they were understanding and kept other project aspects moving so as to stay on schedule.

The work itself was incredibly top notch and can be seen in the attention to the details (both big and small). The tile work, the floors, the custom fireplace, the trim, the decks and roofdeck, even our basement storage area. You name it, they clearly took the greatest care when working on our house. The carpenter on the project built a custom desktop made from pieces of leftover mahogany and it’s better than anything we could have purchased directly from a retailer or vendor. It’s honestly one of my favorite things about the house. That and the main staircase. As mentioned earlier, it was so important that we keep the character of the house intact and this started with heart of the house, the original staircase, including the handrail and large first floor banister. This was no easy task when you consider how old the house was (1890s) and that the staircase extended up three flights to the top floor and also needed to match a new handrail going down to a newly created living space in the basement. Abacus was not only up to the task, but they absolutely exceeded our expectations. It’s the first thing people see when they walk in the house and always comment on how gorgeous it is.

It truly is hard to put into words how thankful we are for the beautiful end product. Just the other day we had someone come in to put up wallpaper in one of the bedrooms and the person said they work on houses all over New England, including a lot of home renovations in South Boston, and she said that you could really tell that whoever worked on the house knew what they were doing and really cared about the project – “The people who worked on this house are true professionals” was her exact quote. And she couldn’t have been more spot on. Thank you Mark and the team at Abacus for giving us the house of our dreams!

- Penn Clarke