Verified record
St. Laurent Construction has worked out of 154 Pine Street in Nashua since 1972 — 54 years, by the Better Business Bureau's account — and the permit trail shows what that has meant in practice: 49 building permits on BuildZoom, mostly additions and alterations on houses around Nashua. Robert A. St. Laurent is listed as president, Robert E. St. Laurent as treasurer, and the Better Business Bureau grades the company A+. The thing to raise before signing is the EPA. In 2016 epa.gov published a settlement with the company covering renovation work at properties built before 1978 in Merrimack and Nashua. BuildZoom also lists an EPA renovation certification for the company, #NAT-F154164-1; confirm its current standing with the EPA yourself before work starts. For an addition or a remodel on an older Nashua-area house, this is a long-established outfit doing exactly that kind of work. Ask how it handles houses built before 1978 — who on the crew is certified, what containment and cleanup look like — and get the scope, the schedule and the permit responsibility written into the contract.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from St Laurent Construction. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$23,000 – $35,000
Typical remodeling project around $29,000
“St. Laurent Construction Co., Inc. (the Company) is located in Nashua, New Hampshire. The settlement involves renovation activities conducted at properties constructed prior to 1978, located in Merrimack and Nashua, New Hampshire.”
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2 changes recorded — last scanned Sep 14, 2026.
Decks and porches5.0
Clients returning for 10 and 20 years5.0
Detailed craftsmanship5.0
Renovates century-old structures5.0