Merrimack, NH
Remodeling Contractor
in Merrimack, NH
Merrimack borders Nashua to the north, a few exits up the Everett Turnpike from our office. Kats Construction & Remodel helps Merrimack homeowners update kitchens and bathrooms, finish basements and attics, replace windows, and add space with additions and accessory dwelling units.
Remodeling for Merrimack Homes
Much of Merrimack’s housing went up in the 1970s and 1980s: colonials, raised ranches and capes on wooded lots. Houses of that age often still have their original kitchens and baths, builder-grade windows and a basement that was never finished. A raised ranch’s lower level, in particular, can become a bright family room, guest suite or home office with the right insulation, egress and lighting. We plan the work around your house and handle the permits and inspections with the Town of Merrimack.
ADUs in Merrimack, NH
Since July 1, 2025, New Hampshire law allows one accessory dwelling unit by right on a lot with a single-family home, attached or detached. Merrimack can set its own size limit, but not below 750 square feet, and may require the owner to live in either the house or the ADU. An existing garage or barn can be converted even if it doesn’t meet current setbacks. We check the local rules during the site visit, before design begins.
Our Services in Merrimack, NH
Attic Renovations
An unfinished attic is often the easiest square footage to add to a home. We turn storage space into offices, bedrooms, playrooms and studios, handling the subfloor and added joists, new electrical and HVAC runs, insulation, windows and skylights, and the finishes.
Basement Remodeling
We finish basements from concept to completion: home offices, guest rooms, home theaters, bars and playrooms, including kitchenettes and bathrooms that need new plumbing cut into the slab. Every step is built for safety and inspection compliance.
Bathroom Renovations
Whether a bathroom is outdated, too small or missing features you need, we can take it down to the studs, reconfigure the fixtures, update electrical, plumbing and HVAC, and finish it into a space you look forward to using.
Kitchen Remodeling
Refresh, replace or reconfigure. We help you decide on layout, lighting, cabinets, countertops, backsplash and flooring, then manage the demolition, mechanical updates and finish work for a brighter, more functional kitchen.
Window Replacements
A window replacement isn’t always just a window. If we find rotted sills, damaged framing or missing waterproofing behind the old window, we repair it on the spot, and our carpenters can redo the interior and exterior trim too.
Accessory Dwelling Units (ADUs)
Attached or detached, an ADU adds a complete second home to your property for family or a tenant. We handle it from the site visit and permits through the foundation, framing and finishes.
Home Additions
When a home needs more room than its walls allow, an addition creates it. Our Westford, MA project shows the whole process: excavation, a poured foundation, structural steel, framing, spray foam insulation, hardwood floors and a new kitchen.
Other Towns We Serve
Testimonials
Tom Comeau
Tom's, Kats Construction & Remodel company is absolutely amazing. They completely remodeled the basement for Regina and was able to do it in a timely manner, she was very happy with the work that was done. It is nice and comfortable and warm even in the cold months, just an absolutely amazing job, absolutely amazing people, courteous and prepared even in this time of the pandemic. The most professional people we have ever dealt with can't say it enough.
In the future will definitely use Tom's company for any of our future projects that are going to be done in the house
John Foley
Used Kats Construction for a significant redesign in our kitchen / living area and I will be going with them for any future projects. Tom is very responsive, explains the scope clearly and is accurate. His team are model professionals and experts in their trade, and they cover everything. Generous and patient with their time to explain. Prices are competitive, my scope changed during the project, got other quotes and always went with Kats due to the certain quality at market price. Their finishing at the end was exceptional, attention to detail beyond what was asked even when at cost to themselves. No hidden costs throughout the project. Enjoying living in what feels like a new home. Thanks to all the crew - Tom, Nick, Matt, Alex, Jesse, Rick, Bob and Perry
Mary K
We used Kats Construction to put up a new deck this summer. The owner Tom explained everything in detail regarding materials needed, the scope of the project, cost, etc. Alex did an amazing job installing the deck and his craftsmanship and attention to detail are top notch. We would highly recommend Kats Construction.
Tamir H
Tom and his team did a complete kitchen remodel. The project was seamless from start to finish. Everyone showed up on or ahead of time. Throughout the project, Tom communicated very clearly where we were and what the next steps were (with dates and times). Tom also facilitated the purchase and installation of the cabinets and granite countertop which was very helpful.
We are very pleased overall with the quality of work. We would highly recommend Kats Construction and Remodel!
Chester Page
Kats construction enlarged & remodeled our bathroom. We are very pleased with the quality of their work. They are cooperative to work with & go out of their way to please. The job was completed ahead of schedule. We would recommend them to anyone. C & E of Nashua
Mark B
We recently had a very large bathroom remodel done by Tom and the team from Kats Construction. The quality of work done by the team was excellent, and Tom kept in frequent communication via calls and texts throughout the project. The cost was very reasonable, and Tom worked with us through several changes in plan that occurred throughout the project. This was a fairly complicated job with a lot of custom work, and Tom continuously worked to make sure every detail was taken care of exactly how we wanted, and to keep us at ease throughout the project. It’s hard to find people who take the time to get the job done right and take pride in their work, but Tom and his team are definitely those types. I highly recommend Kats Construction for this type of job.
Mike Catalano
Very fair pricing on work and great communication throughout the entire project. Attention to detail was fantastic. I would definitely recommend Tom and his crew to anyone looking to have some great work done on your home.
Jesse Andrews
I’ve used Kats Construction on multiple projects and I’m always impressed with Toms professionalism and attention to detail . He won’t leave a job unless his customer is happy with the job . I’d highly recommend this Company to family and friends
Joel Porter
I had a new deck put in summer of 2012 and a new roof put in summer of 2013 kats construction was very professional and very reasonable in there price job only took 3 days for the deck and 1 day for the roof i will be using them in the future for more work!!!
