Verified record
Oliver General Services Inc is a Billerica, MA contractor. Its Massachusetts home improvement contractor licence, number 204370, is expired on the state registry. In a 2022 review, a customer said they hired the business for multiple projects, from hardwood installing and stair and railing installing to a fireplace mantle install, decorative wood columns and personalized wood work in doors. In another 2022 review, a customer said Marco built new wood stairs for 3 floors. A third 2022 review thanks Marcos and Gilson for built in shelving and calls it beautiful work at a fair price. In a 2022 review, a customer said Gilson and his crew were professional, clean and prompt at a very fair price, and that the customer then hired them to paint their home in Andover. Another 2022 review called the work great but said the cost of the windows had really gone up.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Oliver General Services Inc. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,000 – $11,000
Typical exterior project around $7,500
Beautiful work at a fair price. We are so happy with our built in shelving. Thank you Marcos & Gilson!
Gilson and his crew did a fantastic job. Very professional, clean, prompt, and all at a very fair price. I then hired them to paint my home in Andover and once againâ ¦beautiful job done right! I would trust and hire them again in a minute!
Work was great but the cost of the windows has really gone up
Marco is a natural what he does he built new wood stairs for 3 floors an itâ s Beautiful
I am beyond satisfied with the quality of their work. We hired them to do multiple projects for us from hardwood installing, stair and railing installing, fireplace mantle install, decorative wood columns, and personalized wood work in doors. Their attention to detail alongside their creativity made our house not only beautiful but with a fine and unique characteristic. Amazing work! Couldnâ t be happier with the results!
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2 changes recorded — last scanned Sep 26, 2026.
One-day reroofs5.0
No sales pressure4.8
Roofs and siding done together4.8
Additions, attic and garage conversions4.5
Transparent pricing4.5
