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Newell & Crathern is an insulation and weatherization contractor working out of 34 Staniels Road in Loudon, New Hampshire. Its own site describes spray foam, residential and commercial insulation, energy audits, ductless mini splits and window installation, and says the company is BPI certified and participates in the NHSAVES insulation rebate program. The Better Business Bureau lists the LLC as incorporated in April 1999 — 27 years in business — under manager William Newell, and shows an A+ grade on a profile that is explicitly NOT BBB accredited. Google publishes a 4.6-star average from 48 ratings. The written record is dominated by weatherization work, and it is consistent: reviewers through 2025 and 2026 describe air sealing plus blown-in cellulose in attics, basements and crawl spaces, name individual crew members by first name across multiple years, and repeatedly praise tidy work areas and clear explanation of the energy-audit findings. Several reviews say the crews went past the original scope — adding an uncovered crawl space, fixing a badly installed bathroom fan, repairing damaged duct work. HVAC work appears as a real second line: a 2026 reviewer described a next-morning hot water tank replacement, and a December 2025 reviewer a mini split installed to replace an aging furnace. The serious counterweight is a 1-star Google review posted in 2026 about a 2024 job subcontracted through the Community Action Weatherization Program: the reviewer states that after insulation and a propane heating system were installed, waste-pipe leaks contaminated the insulation and floorboards, that repeated attempts to have it addressed went nowhere, and that the result was mould and over $185,000 in damage they describe as still unresolved. That is one customer's account, and the company has not answered it in the evidence here. A separate cluster of three 1-star reviews from 2022 describes no-shows and an unfinished storm-door replacement; the same reviewer later posted an August 2024 update saying the company reached out, replaced the door at no extra charge, and that the employee responsible had left. Worth asking about: how a program-subcontracted job is supervised and who owns the follow-up when something goes wrong afterwards, and how small repair and door jobs are scheduled against the larger insulation crews. New Hampshire does not license insulation or weatherization contractors, so there is no state registration to check for that work.
“It is, I had Newell & Crathern.”
“We used Newell and Crathern.”
In 2024, the Community Action Weatherization Program subcontracted with this company to blow insulation under my floors and also install a new propane heating system in my home. After they were done, several leaks were found in my main waste drain pipe resulting in human waste leaking throughout the insulation and contaminating all the floor boards. It was not promptly dealt despite numerous attempts to have them do so, which resulted in mold growth throughout my home, and over $185,000 in damage which is still unresolved. After that damage, it was found that the heating system they installed was deemed a fire and combustion hazard, as it was installed without the required permits, insufficient clearances, incorrect roof jack and venting, improper wiring, all code violations, as verified by my town building inspector, which also invalidated the warranty, causing additional monetary damages and leaving me with no heat.
I recently had the pleasure of working with Newell and Crathern, and I am thoroughly impressed with both their business acumen and the quality of work they deliver. From the initial consultation to the final execution, every step was handled with the utmost professionalism and a keen attention to detail. The team at Newell and Crathern went above and beyond to understand my unique needs and tailored their services to ensure exceptional results. Their commitment to excellence is evident in the innovative solutions they provided, which have significantly contributed to the project's success. I wholeheartedly recommend Newell and Crathern to anyone seeking a reliable and expert partner for their weatherization needs.
I recently hired Newell and Crathern to handle air sealing and blow-in insulation following my energy audit, and I am very pleased with the quality of their work. The team— Steve, Jacqui, Josh, Ryan, Kyle, Zach, and others — were outstanding. They were professional, polite, and showed a great deal of respect for my home throughout the entire process. The crew was incredibly thorough and took the time to ensure the job was done right, maintaining a high level of attention to detail. They kept the workspace tidy and left everything exactly as it was when they arrived. It is clear that Newell and Crathern prioritizes customer satisfaction and professional standards. I really appreciate the service and the positive attitude of everyone involved in the project. If you are looking for a company that is thorough, polite, and professional, I highly recommend them!
Had a really great experience with Newell Crathern! Josh came out first to do the weatherization audit and was super easy to talk to, he explained everything in a way that actually made sense and didn’t feel pushy at all. A few weeks later, the crew came back to do the insulation work in my attic and around the house. Shoutout to Ryan, Kyle, Tristan, Ron, and Nate (aka “Nate the Great”) they were all awesome. Friendly, respectful, and clearly knew what they were doing. They worked hard, got everything done efficiently, and cleaned up before they left. Overall just a really smooth process and a solid team. Definitely glad I went with them and would recommend them to anyone looking to make their home more energy efficient!
john from HVAC department was very fast and convenient with my hot water tank. I called them the night before and they offered to come and hook up a temporary one, I didn't need it . They were there the next morning first thing and installed it very quickly and professionally.
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1 change recorded — last scanned Aug 23, 2026.
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