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Longmont, CO

General Contractors in Longmont, CO

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

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41 general contractors serving Longmont

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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41 of 41 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 Longmont

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

  1. Siding Design Pro & SDP Renovation

    5.033 Google reviewsVerified

  2. Blue Spruce Construction Services

    5.019 Google reviewsVerified

  3. ABC Kitchen and Bath

    5.08 Google reviewsVerified

  4. Roberts General Remodeling LLC

    5.07 Google reviewsVerified

  5. Murphy Construction Services

    5.06 Google reviewsVerified

  6. Advantage Stone Fabrication

    4.969 Google reviewsVerified

    Granite countertops · Quartz countertops · Marble countertops

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

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Compare quotes in Longmont

41 general contractors serve Longmont, CO. 20 are rated 4.5 or higher on Google and 10 have a perfect 5.0. 35 have a website. Most common services: Bathroom remodeling, Kitchen remodeling, ADU construction, Basement finishing, Custom fabrication, Deck building….

Verified on Google
23
Average rating
4.5 / 5
Google reviews
817

How Google categorizes general contractors in Longmont

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

Services general contractors in Longmont 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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Up to 2 businesses can hold a sponsored spot in Longmont, CO. A sponsored business sits above the regular results with a Sponsored tag; it never changes how other businesses are ranked.

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All 53 services in Longmont

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How general contractors in Longmont compare

General ContractorsLongmontCOU.S.
Average Google rating (10+ reviews)4.584.554.57
Median Google reviews9108
Reviews for the top quarter24+25+22+
Have a website86.8%64.3%65.4%

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

From Page One Partner Research

  • In Longmont, half of the general contractors we list with reviews have 9 or fewer Google reviews, and 24+ puts one in the local top quarter; the average rating is 4.58 (38 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 Longmont?

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

Which general contractors serve Longmont, CO?

41 general contractors serve Longmont, CO. Highest rated (10+ reviews): Siding Design Pro & SDP Renovation (Verified, rated 5.0 on Google from 33 reviews), Blue Spruce Construction Services (Verified, rated 5.0 on Google from 19 reviews) and Advantage Stone Fabrication (Verified, rated 4.9 on Google from 69 reviews), plus 38 more.

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

41 general contractors serve Longmont, Colorado. 20 are rated 4.5 or higher on Google and 10 have a perfect 5.0. 35 have a website. Most common services: Bathroom remodeling, Kitchen remodeling, ADU construction, Basement finishing, Custom fabrication, Deck building…. ZIP codes covered: 80504, 80501, 80503.

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

Koeppen Construction (319 reviews, rated 3.9), Stone Creek Hardscapes & Design (72 reviews, rated 4.8) and Advantage Stone Fabrication (69 reviews, rated 4.9). Review counts are read from each business's Google Business Profile.

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

4 general contractors in Longmont, CO publish hours on Google. 1 is open on Saturdays (Adams Unlimited Construction) and 1 on Sundays (Adams Unlimited Construction). Use the Open now filter above to see who is open right now.

What kinds of general contractors are in Longmont, CO?

Google lists them under Construction company (2), Deck builder (2), Kitchen remodeler (2), Remodeler (2), Service establishment (2) and Bathroom remodeler (1). A business can carry more than one category, so the counts overlap.

General Contractors near Longmont

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FAQ

Questions about Longmont 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.

Run a business in Longmont, CO?

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