🏠 Official Rankings

10 Best Roofers in Longmont, CO (August 2026)

We compared 10 roofers serving Longmont and Boulder County, Colorado, and ranked the top providers by verified reviews, ratings, and local reputation — 3,427 customer reviews in all.

The 10 listed below hold an average rating of 4.9 out of 5, led by WestPro Home Exteriors. Updated for August 2026.

Roofers ranked: 10
Average rating: 4.9★
Reviews analyzed: 3,427
Area codes: 720, 303

WestPro Home Exteriors

⭐ 4.9 · 754 reviews

164 Primrose Ct, Longmont, CO 80501

Visit Website →+1303-834-9236

GreenPoint Roofing

⭐ 4.9 · 670 reviews

1030 Boston Ave, Longmont, CO 80501

Visit Website →+1720-684-5500

Bulldog Roofing

⭐ 4.9 · 641 reviews

1002 17th Ave, Longmont, CO 80501

Visit Website →+1303-395-9728

Red Rock Roofing

⭐ 4.9 · 580 reviews

11411 Business Park Cir Unit 800, Firestone, CO 80504

Visit Website →+1720-735-7663

Roof Source LLC

⭐ 4.9 · 328 reviews

1530 Vista View Dr, Longmont, CO 80504

Visit Website →+1970-634-6509

Legacy Roofers LLC

⭐ 5.0 · 65 reviews

5572 Trailway Ave, Longmont, CO 80504

Visit Website →+1720-731-6824

Denny's Roofing

⭐ 5.0 · 64 reviews

2330 Main St Ste d, Longmont, CO 80501

Visit Website →+1970-714-3886

Columbine Roofing & Solar

⭐ 4.9 · 125 reviews

328 Coffman St, Longmont, CO 80501

Visit Website →+1720-915-5207

Safe Plus Roofing

⭐ 5.0 · 44 reviews

520 Main St b2, Longmont, CO 80501

Visit Website →+1720-759-3914

#10

Stone Creek Roofing & Solar

⭐ 4.8 · 156 reviews

1567 Skyway Dr #A, Longmont, CO 80504

Visit Website →+1303-772-5700

Roofers listed here serve Longmont, Boulder County, and nearby ZIP codes including 80501, 80502, 80503, 80504.