Window Authority Inc. is a family-owned window, door, vinyl siding and roofing company based in Londonderry, New Hampshire, run by owner Tim Talbot and his wife Kim. The company also operates under the name Barwind of New Hampshire, a window and door business with roots going back to 1957, and holds an A+ rating as a BBB Accredited Business.
Homeowners who hired Window Authority consistently point to the same things: Tim's hands-on, no-pressure quoting process, and an installation crew - often named as Bobby, Anthony, Kevin, Chris or Don - that shows up on time and leaves the property clean. Reviewers describe full-house window replacements (in one case, eighteen windows finished in two days), custom entry and patio doors matched to existing hardware, and at least one full roof installation, with both the work itself and the cleanup afterward drawing specific praise. Pricing is frequently described as competitive, and the company states it offers free estimates for window, door, siding and roofing projects across southern New Hampshire, southern Maine and northern Massachusetts.
The company's Google rating stands at 4.8 stars from 33 reviews, and the large majority of the 31 individual reviews on file are five-star accounts of straightforward, well-communicated jobs, some as recent as this spring. Two reviews stand apart from that pattern: in November 2024, one homeowner reported that trim around their new windows was damaged and the caulking left messy with gaps still visible, and another described a basement-window order delayed roughly a month with no proactive update, plus an installation-day incident involving a subcontractor's unprofessional conduct. Both are real, detailed complaints worth asking about directly, even though they sit against an otherwise steady run of positive, specific feedback both before and after them.
Anyone considering Window Authority for a window, door, siding or roofing project should ask about the current installation crew and get a firm timeline in writing, especially for larger or custom orders - the strong majority of customers who did that report a smooth process from quote to cleanup.
