Get matched with top addition to existing structure builders in Andover, CT

"Whitcolm Holmes did an amazing job on my basement renovation; they worked closely with me, listening to my wants and needs, and completed the renovation within my expected timeframe. I will certainly use them again for future projects and happy to refer them to friends and family."

"Timber and Megan are consummate professionals who are timely, hard working and detail oriented. I was very fortunate to have them realize a project that was centered around creating an in-law apartment in an existing space in my home for my father. They worked with me every step of the way which resulted in a collaborative design with a nautical theme. The end result is stunning and everyone who sees it wants to live in it! Thank you Timber and Megan for making my vision a reality."

"3 Sons was very easy to work with. They were very responsive to our needs and questions throughout the process, and the finished project looks great! We are very happy with the results."

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"My wife and I hired TJ'S cleanout services for a complete kitchen remodel. We couldn't be happier with the results. Tj was very responsive and always was in communication with us. Consistently letting us know what step was next and what we should expect. This was our first experience with a project like this and weren't sure what to expect. We emailed and called so many contractors that either didn't answer or didn't respond. A few "contractors" we talked to got very uncomfortable when we wanted to check and make sure they were licensed and insured. When we asked about the demolition portion of the job some companies said they either don't do it or won't do it. We really weren't sure why. we finally found Troy with TJ'S Cleanout services, he informed us that he is a state licensed demolition contractor. He told us that handyman type services and smaller 1 man operations usually aren't licensed. We are so happy with the results. 100% will use them again for any of our future projects."

"Excellent price, excellent work, got the job done in a timely manner. We would definitely hire them again."

"Knowledgeable, fast service, all around great job from start to finish. Completed in a timely manner. Great communication."

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."

MARK1 CONSTRUCTION is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

With over 20 years of hands-on construction experience, Four Sons Home Improvement brings leadership, precision, and integrity to every project. Our background includes serving as a Commercial Carpentry Lead and Foreman, as well as a Residential Project Manager, giving us a unique blend of large-scale expertise and detailed home renovation knowledge.\n\nWe specialize in meticulous, high-quality craftsmanship, backed by industry qualifications including OSHA 30 & OSHA 10 certifications and HIC #0703971.\n\nWhat truly sets us apart is our commitment to communication, quality, cleanliness, and transparency—values we bring to every home we enter. We proudly service Hartford and Tolland Counties, delivering dependable improvements that families can trust.\n\nAt the heart of our work is family. Four Sons Home Improvement is driven by the desire to show our children what hard work, faith, and dedication can achieve—building not only better homes, but a lasting example for the next generation.