ADU Construction Contractor

Home / Work With Us / Residential Services / ADU Construction Contractor

ADU Construction Contractor Southern New Hampshire

J-TEK Construction provides residential renovation, remodeling, and construction services for homeowners throughout Manchester, NH, and surrounding communities. From kitchen remodeling and bathroom renovations to structural improvements and outdoor living spaces, our team helps homeowners improve the functionality, comfort, and long-term value of their homes.

Our Approach to Construction

Our mission is to deliver residential and commercial construction projects through a clear, structured approach built on planning, accountability, and doing the job right. We value consistency, strong communication, and long-term relationships, with a focus on results that hold up over time and continue to earn trust from the clients we serve.

ADU & In-Law Suite Construction Services

J-TEK Construction provides professional ADU (Accessory Dwelling Unit) construction and in-law suite building services throughout Southern New Hampshire. Whether you’re creating a private living space for family members, planning a guest suite, or adding flexible living space to your property, our team delivers quality craftsmanship and thoughtful design solutions tailored to your needs.

From attached in-law suites and garage conversions to detached accessory dwelling units, we help homeowners maximize their property’s potential while creating comfortable, functional living spaces for family, guests, or future needs.

Services Include:

  • Accessory Dwelling Unit (ADU) Construction
  • In-Law Suite Construction
  • Detached ADU Construction
  • Attached In-Law Suites
  • Garage Conversions
  • Guest Suite Construction
  • Private Living Quarters
  • Kitchen & Bathroom Installation
  • Utility & Infrastructure Connections
  • Custom ADU Design & Planning

Benefits of ADU & In-Law Suite Construction

Why Homeowners Build ADUs & In-Law Suites

  • Create Space for Aging Parents
  • Provide Housing for Family Members
  • Increase Property Value
  • Add Flexible Living Space
  • Create Private Guest Accommodations
  • Improve Multi-Generational Living
  • Maximize Property Use
  • Increase Home Functionality
  • Create Independent Living Areas
  • Invest in Long-Term Property Value

Frequently Asked Questions

  • An ADU, or Accessory Dwelling Unit, is a secondary living space located on the same property as a primary residence. ADUs can be detached structures, attached additions, converted garages, or other independent living spaces that typically include a bedroom, bathroom, kitchen, and living area. They are commonly used for family members, guests, or multi-generational living arrangements.

  • While the terms are often used interchangeably, an ADU is typically a fully independent living space with its own kitchen, bathroom, and entrance. An in-law suite may share portions of the home while still providing privacy and separate living accommodations. Our team can help determine which option best fits your property, goals, and local building requirements.

  • ADU regulations vary by municipality and zoning district. Factors such as lot size, setbacks, utility requirements, and local ordinances can all impact what is allowed. J-TEK Construction can help evaluate your property and guide you through the planning process to determine what options may be available.

  • Project timelines depend on the size of the structure, permitting requirements, site conditions, and the complexity of the design. A garage conversion may have a different timeline than a detached ADU or major home addition. During the planning phase, we’ll provide a clear timeline and keep you informed throughout the project.

  • J-TEK Construction provides complete ADU and in-law suite construction services including detached ADUs, attached in-law suites, garage conversions, guest suites, kitchen and bathroom installation, utility connections, custom layouts, and complete project management from planning through construction.