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Addition Contractors in Stamford, CT

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Service Pros

    AA Outdoor Services, LLC Logo
    Southbury, CT·

    Asphalt & Concrete Paving, Commercial and Residential, Excavation, Tree work, Land Clearance , and 12 more

    "They were very good at communicating throughout the project. They took extra care to make sure that the run off was appropriate."

    JoAnn .. in October 2018

    A2Z Contractors, LLC Logo
    Stamford, CT·

    A2Z Contractors, LLC specializes in 80% Interior Finish Carpentry and 20% Exterior Work., A2Z Contractors, LLC's Professional Team of Paint specializes in Exterior and Interior Paint using highest quality Benjamin Moore Paint for a more durable and everlasting color., Kitchen and Bath Update and Remodeling , and 12 more

    "A2Z was the best contractor of several I have used. Weslyn was superb in that he took time to understand what I wanted and guided me in choosing items I wanted and was very patient with my overall ignorance of remodeling issues. The work to remodel my 1/2 bath was very high quality. This was a small project but I got top shelf treatment.. I was very pleased with all aspects of the service and it was completed quite quickly. I am very happy with the result of this excellent and professional workmanship. I highly recommend A2Z."

    Rosemary S. in December 2018

    TH
    PORT CHESTER, NY·

    "Great work in a timely manner at a fair price."

    7D81E4124074A4BCF1A87AE95583AC243EE9A5D826CDE45F760D8EC45B13E5D4 1. in September 2026

    AI Art and Design Logo
    YONKERS, NY·

    Bathroom Remodels, Kitchen Remodel, Design Work , and 8 more

    "We hired Ion and AI Art and design after lengthy process with many others. He showed a high understanding of design and a sensitive. He designed and took us through the whole process with other professionals in the design and construction phases. It was a pleasure seeing everything coming together. The house looks spectacular. We highly recommend working with AI and Ion on your project."

    B080434E9904E48B91D83B851A0F8F89537EEBE7FF96FBD9C531422E0E2E76A5 2. in July 2025

    3 Son's Siding & Gutters LLC Logo
    Middletown, CT·

    "Overall excellent job at a fair price. Enjoying our new office and additional bedroom!"

    5B065B0996C44AB2E641E24472B28D3E38554CE13D06D72B1AA93480DDA21D43 F. in August 2026

    All Trades Contracting Logo
    Greenwich, CT·

    General Contractor, Junk removal/hauling, General Contractor , and 1 more

    "The team helped us through one of the worst situations. Our home was severely damaged and flooded by Superstorm Sandy. We needed someone to help secure the existing structure, help oversee the insurance process and do the rebuild and remodel. We were very appreciative of the diligent work of this firm. They helped create a better design to prevent future flood risks, remodeled the house in full, and did it within our budget with insurance. In the beginning there were many nights where the team pulled all nighters."

    7E92BA28101B363200C09EFF579E097DDB8A25F64B727EC42042D019CBBD2870 8. in June 2025

    HT
    Trumbull, CT·

    Remodeling

    "Bill and his crew replaced a deck and did a great job. I would definitely recommend this company."

    Eve R. in December 2020

    SC

    "I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."

    01C40F612736BA43A3D69F48BE813B7873B163B03ADDA786326EBB1D80B37326 D. in March 2026

    CC
    White Plains, NY·

    About us: "Our team of highly trained, professionals will perform with dedication and high-quality materials to achieve any remodeling project you want on your property. We guarantee your total satisfaction!"

Showing 1-9 of 28 results

How much do addition contractors typically cost?

  • Stamford, Connecticut Average
    $57,785
  • Typical Range
    $40,000 - $75,260
  • Low End - High End
    $21,000 - $175,000

Frequently asked questions

  • It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
  • You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
  • It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.

HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.

Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.

You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website. 

Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:

  • Have you completed a job like this before?
  • Do you have a list of references I can contact?
  • When are you able to start the job?

In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down. 

  • How many years of experience do you have?
  • What’s your permanent business address?
  • Are you licensed to work in my area?
  • When did you earn your business license?
  • How do you handle warranty service complaints?
  • Do you have worker’s compensation, property damage and personal liability insurance?

Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.  

Related Projects in Stamford, CT

HomeAdvisor Community Rating

Overall Rating:

Stamford Addition & Remodeling Contractors are rated 4.5 out of 5 based on 190 reviews of 190 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.


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