Compare Quotes from Addition Contractors
Get Quotes Now

Addition Contractors in Boulder, CO

Where do you need Build an Addition pros?

How It Works

  1. Answer a few questions about your home project.
  2. Within seconds, get matched with top-rated local pros.
  3. Compare quotes and choose the best pro for the job.

Service Pros

    MH
    Eldorado Springs, CO·

    "So happy with the quality of the workmanship. Brett was fantastic to work with."

    Shari K. in December 2019

    Wes-Tec Builders Company, Inc. Logo
    Denver, CO·

    Detached/Attached Garages, Patio Cover/Patio Enclosures/Carports, Room Additions , and 1 more

    "Iâ m very happy with the garage addition completed by Wes-Tec Builders. The work started and was completed in a timely fashion.. I was very impressed with the skill and experience demonstrated by all the sub-contractors. I will use them again and definitely recommend them."

    Frank M. in November 2024

    Living Stones Construction Management, LLC Logo
    Longmont, CO·

    Additions & Remodels, New Construction, Basement Finish

    "I am very pleased with my kitchen remodel. They stayed on schedule and there were no cost overruns or other unexpected issues. Adam Parker built my parents' house back in 2006 so I knew the type of work he did, and he's bringing the same quality and workmanship to the remodels that he does."

    Kathy D. in November 2022

    PB
    Denver, CO·

    "Peak Builders and Roofers helped us remodel our bathroom after 10 years of waiting to get this done. The team did a great job in many ways, they were very much on the timeline, and the workers were great, always showing up in a timely fashion (which many times isnt the case with other construction workers we have worked with in the past), and most importantly, they really went above and beyond to deliver a high quality, thorough job, they have created a punch list through out, and kept on supervising that everything will come out top notch. We will be calling peak builders and roofers, for any of our future home remodels."

    Aria W. in November 2024

    Ubora Build LLC Logo
    Thornton, CO·

    Home Renovation, Remodeling, Home Building , and 7 more

    "Ubora build was wonderful to work with and we couldn’t be happier with their work. They helped us make our vision a reality. They care about every detail, work to make it all easy on the homeowner and organize the jobs for efficient and quick delivery. The team is responsive, friendly and knowledgeable. I would use this team 10/10 times- best in the business!"

    Julie C. in November 2024

    Lone Eagle Construction Logo
    Longmont, CO·

    Custom Homes and Renovations, General Contractor

    "Lone Eagle Cosntruction remodled my kitchen and stairwell, I couldnâ t be happier with the results! From start to finish, the process was smooth and efficient. What impressed me most was their commitment to staying on time and within budget. Their timeline was quicker than expected, without compromising on quality. The team was meticulous with every detail and provided ideas to improve the project. The team was professional, attentive to detail, and always available to answer my questions. They truly transformed my kitchen into a beautiful and functional space. I to anyone looking for a reliable contractor. They exceeded my expectations in every way."

    Marianne T. in October 2024

    MD
    Arvada, CO·

    Permitting, Concept Development, 3D Renderings , and 2 more

    "Michell has done a fantastic job with my project as well as my friends project. She is competent, efficiency, and has a great ability to think outside the box to get the result."

    Masoud R. in August 2024

    Four Seasons Ready Construction, LLC Logo
    Kiowa, CO·

    Swimming Pools Installations & Landscape Installs, Restoration & Recovery Services - Fire & Water Mitigation, General Contractor & Emergency Services , and 2 more

    "Quite possibly the smoothest experience I have ever encountered in my 20+ years using contractors. Drew and his crew were nothing but outstanding to work with. Id 10/10 recommend these guys to everyone!"

    Kyle W. in December 2024

    Baker Building Services Logo

    "I have never had a project go so smoothly or as timely. I have done a few condo remodels, always on a tight turnaround between tenants or a sale. Brant has impeccable, responsive communication. He does what he says he is going to do and stands by the quality of his work and reputation. You can always find someone to do it cheaper but the value of timeliness, good communication, quality workmanship and customer service is worth it."

    Amy L. in July 2024

Showing 1-9 of 19 results

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 Boulder, CO

HomeAdvisor Community Rating

Overall Rating:

Boulder Addition & Remodeling Contractors are rated 4.9 out of 5 based on 148 reviews of 148 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.


Other Top Projects in Your Area

Other Cities in Colorado

If you're looking for Build an Addition Contractors that serve a different city in Colorado, here are some popular suggestions:

Find Build an Addition Pros in Boulder, CO

HomeAdvisor: The nation's largest network of screened and rated pros.

Tell us about your project and we'll match you to the perfect pros.

Get Matched With Pros

Find Pros Nearby


Things to Consider Before You Build an Addition:

What best describes this project?

    Do you provide these professional services?

    Find out how HomeAdvisor can help your business

    See Local Demand

    See Recent Leads

    Recent Job Requests for Addition & Remodeling Contractors in Boulder, CO

    • Project Location: Boulder, CO
      Date: 02/04/24
      Desired Completion Date: More than 2 months
      Request Stage: Planning & Budgeting
      Project Description: Design and build
      Comment: Want to add a second story and extend the kitchen backwards to a ranch house that has a 1,000 daft upstairs and a basement
    • Project Location: Boulder, CO
      Date: 01/28/24
      Type of Addition: Second story addition
      Project Description: Design and build
      What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
      What types of rooms/spaces are you interested in adding to your home?: Kitchen
      What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)
      Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
    • Project Location: Boulder, CO
      Date: 01/25/24
      Type of Addition: Ground level addition
      Project Description: Design and build
      What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)
      What types of rooms/spaces are you interested in adding to your home?: Kitchen
      What types of rooms/spaces are you interested in adding to your home?: Living/family room
      What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)
      Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.

    References Available
    Tell us your zip code to view pricing & schedule
    Tell us your location to view pricing & schedule
    Choose your project to view pricing & schedule

    Please enter valid zip.

    Please choose a location.

    We're sorry but the time you have chosen is no longer available.
    Please select a new time below:
    does not provide service to View pros who serve this zip
    Enter a zip code to view which pros serve this zip.
    There was an issue connecting to the server. Please try again or call Customer Service at 1-888-811-ANGI.
    We're sorry but the time you have chosen is no longer available.
    Please select a new time below:

    Select your appointment type and time:

    Final Step - Confirm Your Appointment:

    Confirm your appointment with on , - Change


    Required
    Required
    Required
    Required
     
     
     

    By clicking Confirm Appointment, you affirm you have read and agree to the HomeAdvisor Terms & Conditions, and you agree and authorize HomeAdvisor and its affiliates, and their networks of Service Professionals, to deliver marketing calls or texts using automated technology to the number you provided above regarding your project and other home services offers. Consent is not a condition of purchase.