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DADUs, Garages, Accessory Buildings & More


Detached structures, lot improvements, driveways, retaining walls, if you need a permit and multiple tradespeople to complete your project then it is best to work with a properly licensed and insured general contractor like Allyn Building Company. Lean on our expertise to see to it that things don’t go awry. 

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Expertly Built Accessory Structures

From detached garages to accessory dwelling units (DADUs) and workshops, we specialize in creating high-quality, functional structures. Whether for extra living space, storage, or utility, our team ensures every project meets your specific needs.


We manage everything—from permits to construction—with precision and care, delivering durable results that seamlessly integrate with your property. Let us build the perfect addition to enhance your lifestyle and add value to your home.

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Start your project with confidence! Get a free consultation with our expert team, guiding you through every step of construction or renovation tailored to your vision.

Streamlined Lot Improvements

Transform your property with professional lot improvements that boost functionality and curb appeal. Our services include driveway installations, retaining walls, and site preparation tailored to your project’s unique requirements. With expertise in managing permits and coordinating trades, we handle complex tasks efficiently and ensure flawless execution. Trust Allyn Building Company to enhance your outdoor spaces with reliable, high-quality improvements designed to last.

Comprehensive Project Management

Large-scale projects involving multiple trades can be overwhelming, but we’re here to simplify the process. Our licensed and insured team ensures everything—from permits to construction timelines—is expertly managed. By coordinating trades and overseeing each detail, we minimize delays, avoid complications, and deliver exceptional results. Whether it’s a new garage, driveway, or accessory building, we ensure your project runs smoothly from start to finish.

Licensed and Insured Expertise

Choosing the right contractor is key to a successful project. As a licensed and insured general contractor, we bring peace of mind to every job. With years of experience handling complex builds, we ensure your project complies with local regulations while delivering the highest standards of craftsmanship. Whether it’s a DADU, retaining wall, or driveway, you can trust us to handle every aspect with professionalism and care.

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Talk to Us Directly

At The Tech Carpenter, your satisfaction is our top priority. Whether you're facing a technical issue, need advice on maintaining your equipment, or have any questions about our services, our dedicated support team is here to assist you.

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