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Three customers writing in 2025 had already resigned themselves to replacing a deck — a mahogany one neglected about five years, a worn pool deck, and one the owner thought would have to be torn down — and all three wrote that cleaning, sanding and resealing saved it instead. That is the lane Seal A Deck stays in: deck sealing, treatment, repair and restoration, with fence restoration and teak furniture refinishing alongside it. The company works from a Newton address, says it covers Boston, MetroWest, the North Shore, South Shore, Cape Cod, southern New Hampshire and Rhode Island, and describes itself as founded and led by Michael Kaloutas; Angi's listing puts it in business since 2000. The job comes in stages, and reviewers walk through them. A June 2026 customer wrote that the crew cleaned the deck on the first day, came back several days later to sand, and stained last. An April 2026 homeowner described a large rear deck sanded and cleared of debris in a single day, then a return trip for a double application of the coating they had chosen. The office turns up in the reviews as often as the crew. One June 2026 homeowner named the whole handoff — a consult with Geoff, coordination through project manager Kerri, then Danny and his team on the prep. In May 2026, another wrote that Antonio cleaned their deck and, when asked about a mark a rubber mat had left on stone, cleaned that off too. Two reviewers describe coming back repeatedly, one for annual maintenance that includes swapping boards when they need it, another for a new pool deck and a deck extension in April 2026. Weather sets the pace here. That April 2026 review opens with a few days' delay before the start and a couple of rain delays mid-job — still a 5-star write-up, but worth planning around if you have a date in mind. The scoring also isn't uniform across sites: 5 stars from 47 Google ratings, 3.5 stars from 49 ratings on Angi, and an A+ grade at the Better Business Bureau. If your deck is tired rather than rotten — mahogany, ipe and fir all show up in the reviews, along with a cedar outdoor shower and teak patio furniture — this is a shop set up for exactly that. Get the prep steps and the number of coats written into the estimate, ask how many visits the job needs, and settle up front what happens when rain moves the schedule.
The workers were on time and very thorough and explained the entire process. On day one they cleaned the deck. Several days later they returned to sand and finally stain. The deck looks great. We are very happy with their work and would recommend Seal A Deck to anyone looking to improve their deck.
I searched Google for deck refinishing, and invited 3 companies to quote refinishing our 30+ year old fir deck. The first 2 companies sent someone to my house to look at the job but one barely spoke English and the other seemed to know nothing about decks and just took pictures and made a few measurements. I spoke to the owner of Seal-a-Deck on the phone and he said he didn’t need to visit the job, but asked for a few photos and said he could take measurements from satellite images. He was extremely knowledgeable and clearly explained the process they use. Seal-a-Deck’s quote was very reasonable and I awarded them the job. The scheduling was very easy and the job was done professionally. The deck and railing look terrific. I would strongly recommend Seal-a-Deck!
We needed to reseal and stain the deck of our meeting house and found Seal A Deck on line. Turned out to be the PERFECT CHOICE! Contacting other companies we found that they maintained decks as part of a larger list of work. Seal A Deck was the only one we found that only maintained and installed decks, period. Their crew was first rate, and were able to work with us on specific time lines and days when the work could be done. Finished product looks amazing, like we have a brand new deck! Our project manager Keri Becker was professional and always available to answer questions and to assist. Over all a great experience! Well done Seal A Deck! We could not be happier
Very pleased with my overall experience with Seal A Deck. They provide an excellent team approach that yielded a very positive outcome, ie, consult with Geoff, handoff and coordination via their project manager Kerri, and spot on performance from Danny and his team with the prep and staining process. The entire team is very professional, polite, and accommodating - a job well done from start to finish!
Very professional, communication was awesome and they did a beautiful job! Our deck looks amazing and the process was so easy!
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1 change recorded — last scanned Jul 6, 2026.
Bathtub reglazing5.0
Exterior renovations4.9
Victorians and an 1894 home repainted4.8
Custom ironwork, from railings to structural steel3.4
Project communication3.8