Top-Rated Vinyl Siding Installers in Northglenn, CO
10 vinyl siding installers earned a spot on this Northglenn page by Google rating, not by a state file this site doesn't have enough of yet. Wind risk reads Relatively High and hail risk reads Very High for the county around Northglenn, exactly the two stresses a panel's ASTM rating is supposed to answer.
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34° / 75°Fnormal January and July mean temperatures
What Northglenn's climate asks of a vinyl panel
Northglenn's July mean of 75°F is well below what a dark vinyl panel can reach in direct sun, which is part of why manufacturers warn about nearby heat sources.
January's 34°F mean, on the other end, is cold enough that a crew has to widen fastening clearances to keep panels from cracking.
Data: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020 (annual/seasonal and monthly, by station) (1991-2020), from the nearest NOAA station 1.9 mi away.
Wind and hail risk near Northglenn
On FEMA's National Risk Index, wind risk in Adams County is Relatively High and hail risk is Very High.
Both are exactly the two stresses vinyl siding sold near Northglenn is tested against before a product can carry ASTM certification.
A Relatively High wind rating is one more reason to ask what wind-load class your installer is actually specifying.
- Strong wind
- Relatively High
- Hail
- Very High
- Wildfire
- Relatively Low
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
10 top-rated vinyl siding installers in and near Northglenn
A single five-star review counts for less here than a few hundred reviews averaging 4.8, since the order below blends the star count with how many people left one. Nothing about that order checks a license, so ask to see one yourself before you sign.
ATS Exteriors Roofing & Siding
Siding contractor
- Google rating
- Reviews
- 93
- Area
- Broomfield 80020
Roof Worx
Siding contractor
- Google rating
- Reviews
- 407
- Area
- Thornton 80241
Elite Exteriors of Denver LLC
Siding contractor
- Google rating
- Reviews
- 51
- Area
- Thornton 80233
Weaver Construction
Siding contractor
- Google rating
- Reviews
- 134
- Area
- Northglenn 80233
Arrow Roofing & Exteriors
Siding contractor
- Google rating
- Reviews
- 44
- Area
- Thornton 80241
KELLY CONSTRUCTION
Siding contractor
- Google rating
- Reviews
- 57
- Area
- Thornton 80241
Ultimate Exteriors of Colorado
Siding contractor
- Google rating
- Reviews
- 26
- Area
- Thornton 80229
Affordable Professional Siding LLC
Siding contractor
- Google rating
- Reviews
- 13
- Area
- Northglenn 80233
Carlson Siding & Construction
Siding contractor
- Google rating
- Reviews
- 30
- Area
- Thornton 80602
Cardinal Exterior
Siding contractor
- Google rating
- Reviews
- 41
- Area
- Thornton 80241
Before you sign, ask about the panel itself
- What thickness, in mils, is this panel, and does it carry an independent ASTM D3679 certification listing?
- Is this standard vinyl or insulated vinyl, and if insulated, what R-value is certified under ASTM D7793?
- What wind-load rating is the product certified for, in miles per hour, and how does that compare to {county}'s wind risk?
- Will the installer leave the manufacturer's specified expansion gap at trim, corners and openings, or nail tight?
- If the color is a dark shade, is it separately certified for color retention?
- Does any wall face reflected sunlight from a neighboring low-E window, and has that been accounted for in the material choice?