WG Construction

WG Construction is an exterior contractor based on Main Street in Epping, New Hampshire, run by Walter Guaman, whose name appears in review after review as the person who shows up to look at the job. The work is roofs, siding, gutters, windows, doors and the trim and sheathing behind them, for homeowners across southern New Hampshire and the Seacoast. Speed is the thing customers write about most. A homeowner whose branch went through a garage roof said the crew was there within two hours and the repair was done two hours after that; a realtor needing a client's gutters cleaned in July 2026 got it turned around the same way. Roof replacements repeatedly land inside a day or two - one April 2024 reviewer described a crew of ten stripping the old roof, replacing boards and rafters where needed, and finishing in two days. The other recurring theme is diagnosis. In August 2024 a homeowner who had been through several contractors that could not find where rain was entering the garage wrote that Walter traced it to an improperly sealed window, opened up the clapboard, replaced the rotted sheathing and framing, wrapped the area in ice-and-water shield and re-sided it. A July 2024 review describes a leaking chimney where the previous contractor had layered new flashing over the old, and the repair meant stripping everything back to sound wood. Reviewers also consistently say the price came in at or below competing bids - one 2023 customer had three quotes and took the lowest, and the Reddit commenter who prompted this listing said the company beat Lowe's and DreamWorks on a siding and door job. Two things are worth weighing. Every one of the 89 written reviews on file sits on Google - there is no second platform, no directory profile and no BBB record here to cross-check the picture against. And the one review that is not unreserved, from a winter job, says nails, broken saw blades and wood scrap were left in the snow and a few trim boards had not been replaced yet, pending a return visit for a deck. New Hampshire does not register roofers or siding contractors statewide, so there is no state licence to look up for this work; a 2024 reviewer noted the written estimate arrived with a copy of the company's insurance certificate attached. Right call for roofing, siding, gutter and window work where you want a fast start and a competitive number. Before booking, get the estimate and insurance certificate in writing, and agree what cleanup and punch-list items look like if the job runs into winter.