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Verified record
No state license for this trade. New Hampshire doesn't license or register carpentrybusinesses, so there's no state registry to check. That's true of every carpentry business in the state, not a mark against this one. Insurance is self-reported.
- 2 reviews in the last 6 monthsNo negatives
- 12 work photos
Highlights
- Kitchen remodel completion — finished quickly after another contractor never completed the job
- Basement refinishing — gutted and refinished a basement that turned out beautiful
- Slider door install — new door's insulation became clear the next winter
603-Carpenters LLC describes itself on its website as a family-owned carpentry business based in Derry, New Hampshire, and says it has been in business for 27 years. Its site lists a service area that includes Derry, Hillsborough, Merrimack, Amherst, Manchester, Bedford, Milford and Hollis, among other towns. A recent Google reviewer says Mike installed a slider for them about 6 years ago and that the new door was well insulated, which became very clear the next winter. That reviewer then hired him to gut and refinish a basement, which turned out beautiful, and has since hired Mike for many other jobs. In another recent Google review, a customer says Mike came in after another contractor never completed a kitchen remodel, completed the work quickly, and that the finished work was exceptional.
Read the comments
Most recent comments
- 5.0Sep 27, 2026
Mike does truly exceptional work. He brings incredible care, deep knowledge, and years of experience to every single job. I met him when he installed a slider for me about 6 years ago, and the quality and care he took was visible, not to mention the new door was well insulated which became very clear the next winter. Because of his incredible work ethic and fair pricing, I decided to hire him to gut and refinish my basement, which turned out beautiful as well. Since then, I have hired Mike to do many other jobs for me and he gives every project the same care no matter how small. It's rare to find someone in this field with such integrity, who stakes his reputation on everything he does. He is a gem and the only general contractor that I will hire now. Highly recommended!
— Kathy AdamsView on Google Reviews ↗ - 5.0Sep 22, 2026
Mike was wonderful to work with. He came in after another contractor had come in for a kitchen remodel. That contractor never completed the job and left us with several items that needed to be completed. I found Mike, he came in, completed the work quickly and the finished work was exceptional. I would highly recommend him!
— Ann Marie CrichtonView on Google Reviews ↗
What does carpentry work cost in Greater Nashua?
Typical your area range for this kind of work, from regional averages — not a quote from 603-Carpenters LLC. Use it to sanity-check bids, then get the real number in writing.
A typical single-level deck is 12×16 — about 200 sq ft.
Estimated range
$7,750 – $14,500
Typical carpentry project around $11,100
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