MCCOSKER BUILDERS, LLC

A 2025 customer used McCosker Builders as the contractor for their kitchen remodel and said Ryan McCosker came out to estimate removing and installing new cabinets, then also did the plumbing and installed a kick space heater. On its Houzz profile, the company describes itself as a family owned, New Hampshire based design-build firm of third generation builders. It holds a 4.6-star Google rating from 10 ratings. A 2025 customer said Ryan replaced their kitchen cabinets with upgraded ones, oversaw the quartz countertop measurement, installed the sink, faucet, dishwasher and microwave, and cleaned up every day. A 2025 customer said Ryan repaired the sloped ceiling in their bedroom. A 2025 customer said Ryan put in new front stairs and side stairs into the house, with new doors. A 2025 customer who had hired Ryan McCosker for multiple properties said the most recent project was a total renovation of a 3-bedroom, 2-bath, 1,800 sq ft ranch. A 2025 customer said Ryan showed up on time every day except in rain and adjusted on a deck repair as more rot was discovered. A 2024 customer said Ryan, as general contractor, managed subcontractors for the demo, excavation, concrete foundation and slab, framing, roofing and electrical work on a new 2-car tandem garage that replaced a 90-year-old one. That 2024 customer said he worked with them on line-item allowances, advised them on how they were doing against the budget, and that in the end there were no surprises. A 2022 customer said McCosker Builders built their custom home and a shed to match, and that the house was completed in the promised time and very close to the original quote at the height of the pandemic. In a 2018 Houzz review, a customer said they hired McCosker Builders for the reconstruction after a house fire, and that Ryan dealt with the insurance adjuster and the city inspectors. A 2022 customer said several aspects of construction were done poorly or on the cheap, listing ground fault breakers that kept tripping, foundation cracks 1 1/2 years in, a leaking bulkhead, a chipping garage floor and a garage door opener that tore its mount loose. That 2022 customer said repairs of things covered under warranty were also done on the cheap.