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About Us


Coastal Windows & Siding, Inc. is a family owned business serving New Hampshire and Maine.
Andrew Seniuta, President, has over 30 years experience as a general contractor, construction company business owner and builder.  From building single family homes, townhomes, multi-unit condominium buildings, additions and major renovations, Andrew has the experience and knowledge necessary to provide you with expert advice and experienced problem solving for your next project, using the highest standard in professional integrity.
Coastal Windows & Siding, Inc. provides its customers with the most current, high quality materials, with quality installations at a competitive price. Whether you are looking to replace your windows, upgrade your siding to a maintenance free option, or replace your leaky roof, Coastal Windows & Siding, Inc. can provide the quality you need at an affordable price.  Our core mission includes customer satisfaction, honesty and value. Please contact us for a free, no obligation, in-home estimate today.
  • Industry Leading Warranties
  • Insured
  • Lead Safe Certification
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