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Boulder, CO

General Contractors in Boulder, CO

122 general contractors in Boulder, Colorado, with Google ratings, hours and websites where the business has them.

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122 general contractors serving Boulder

Recommended businesses first, then businesses that have claimed their profile, then Verified ones, then by Google rating and review count. Use Sort to see highest rated first.

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Page 1 of 3 · 48 of 122 shown. Recommended businesses first, then businesses that have claimed their profile, then Verified ones, then by Google rating and review count. Use Sort to see highest rated first.

Top rated

Highest-rated general contractors in Boulder

Ranked by Google rating, then review count. Only businesses rated 4.5 or higher with 5+ Google reviews qualify.

  1. Cornerstone Contracting

    5.0126 Google reviewsVerified

  2. Sloan Construction

    5.059 Google reviewsVerified

  3. Mountain Woodcare

    5.038 Google reviewsVerified

    Log home restoration · Wood siding restoration · Deck restoration

  4. Skycastle Construction

    5.034 Google reviewsVerified

  5. Petra Custom Builders

    5.032 Google reviewsVerified

  6. Adai Construction

    5.031 Google reviewsVerified

See every general contractors in Boulder sorted by rating · Best of Boulder across every trade

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122 general contractors serve Boulder, CO. 34 are rated 4.5 or higher on Google and 26 have a perfect 5.0. 77 have a website. Most common services: Bathroom remodeling, Home additions, Kitchen remodeling, New construction, Additions, Custom homes….

Verified on Google
27
Average rating
4.4 / 5
Google reviews
1,046

How Google categorizes general contractors in Boulder

Primary and secondary categories from each business’s Google Business Profile. Tap one to filter the list.

Services general contractors in Boulder list on Google

Service names as each business entered them on its Google Business Profile, with how many businesses list each one.

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Page One Partner Research

How general contractors in Boulder compare

General ContractorsBoulderCOU.S.
Average Google rating (10+ reviews)4.454.554.57
Median Google reviews7108
Reviews for the top quarter30+25+22+
Have a website63.6%64.3%65.4%

Businesses listed in our directory, not every business in the market. Updated October 2026. General Contractors industry report · What is a good rating for general contractors? · Best cities for general contractors

From Page One Partner Research

  • In Boulder, half of the general contractors we list with reviews have 7 or fewer Google reviews, and 30+ puts one in the local top quarter; the average rating is 4.45 (118 listed in our directory). General Contractors industry report
  • A good Google rating for general contractors: in our directory, the median is 4.8 and at least a quarter hold a perfect 5.0. Half of them have 8 or fewer reviews. What is a good rating for general contractors?
  • Colorado businesses in our directory average 4.57 stars on Google, ranking 7 of the 50 states we measured; 28.4% list no website. Ratings in every state

Quick answers

Who serves Boulder?

Names and Google ratings, straight from each business's profile.

Which general contractors serve Boulder, CO?

122 general contractors serve Boulder, CO. Highest rated (10+ reviews): Cornerstone Contracting (Verified, rated 5.0 on Google from 126 reviews), Sloan Construction (Verified, rated 5.0 on Google from 59 reviews) and Mountain Woodcare (Verified, rated 5.0 on Google from 38 reviews), plus 119 more.

How many general contractors serve Boulder, CO, and how are they rated?

122 general contractors serve Boulder, Colorado. 34 are rated 4.5 or higher on Google and 26 have a perfect 5.0. 77 have a website. Most common services: Bathroom remodeling, Home additions, Kitchen remodeling, New construction, Additions, Custom homes…. ZIP codes covered: 80301, 80302, 80303, 80304, 80305, 80308, 80306, 80307.

Which general contractors in Boulder, CO have the most Google reviews?

Cosman Construction (154 reviews, rated 4.6), Cornerstone Contracting (126 reviews, rated 5.0) and Melton Design Build (90 reviews, rated 4.7). Review counts are read from each business's Google Business Profile.

Which general contractors in Boulder, CO are open on weekends?

12 general contractors in Boulder, CO publish hours on Google. 2 are open on Saturdays (Roof Masters of Colorado and Flatirons Remodeling & Basement Finishing) and 1 on Sundays (Flatirons Remodeling & Basement Finishing). Use the Open now filter above to see who is open right now.

What kinds of general contractors are in Boulder, CO?

Google lists them under General contractor (10), Kitchen remodeler (6), Remodeler (6), Home builder (5), Bathroom remodeler (4) and Contractor (4). A business can carry more than one category, so the counts overlap.

General Contractors near Boulder

All of Colorado · Cities A–Z

FAQ

Questions about Boulder businesses

How businesses get here and how up to date everything is.

Yes. Page One Partner is a free directory of local service businesses across the United States. It costs nothing to search, and nothing for a business to be listed. Each profile is built from the business's public Google Business Profile, and an owner can claim, update or hide theirs at any time by contacting info@pageoneinsights.com.

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