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Calnan's Energy Systems Inc.
Sticks to the estimate4.5
Seeair
Phone scan and a 3-D rendering4.4
Verified record
D&D Insulation is a New Hampshire insulation specialist — its own site says insulation is the company's expertise and that it will help you settle on the right option for a new home or a retrofit project. A 2025 New Hampshire listing gives it an address on Calef Highway in Lee. A business register describes the company differently: a commercial and institutional builder based in Rochester, with roughly seven people. Worth asking which side of that line your house falls on. One thing to raise before signing: a safety-incident site reports that OSHA opened a referral safety inspection of D&D Insulation, LLC, dated 2026-07-10 and recorded at 310 Woodward Hill Rd in Francestown. That is an inspection opened, not a finding — ask the company what it concerned and where it now stands. For a new build that needs insulating, or an older house getting brought up to date, this is a trade specialist rather than a general remodeler. Ask for a certificate of insurance, the material and R-value planned for each area in writing, and confirm that residential work is part of what they take on.
“- ### New Hampshire ... D&D insulation - 300 Calef HWY, Lee, NH - 603-292-5071”
“Insulation is our expertise, and we can help you decide on the best option for your new home or retrofit insulation project.”
“D & D Insulation LLC is a specialized Commercial and Institutional Builders firm based in Rochester, NH (03868). Functioning as a Subchapter S Corp.oration, they have been operating for over 2 years and maintain a team of approximately 7 employees. ... Classified under NAICS 236220, this industry comprises Businesses involved in the construction, maintenance, and repairs of commercial and institutional buildings, such as office buildings, airports, hospitals, schools, and warehouses. It covers general contractors, for-sale builders, design-build firms, and project construction management firms”
“OSHA Inspection: D&D Insulation, LLC (Francestown, NH) 2026-07-10 · Safety Incidents ... # OSHA Inspection: D&D INSULATION, LLC ... At a glance On 2026-07-10, OSHA opened a referral safety inspection of D&D INSULATION, LLC in 310 WOODWARD HILL RD, FRANCESTOWN, NH 03043 (NAICS 238310). OSHA activity number 349044008. ... OSHA opens inspections for many reasons: routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer b”
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2 changes recorded — last scanned Sep 14, 2026.
Sticks to the estimate4.5
Phone scan and a 3-D rendering4.4
