Bethlehem's Highest-Rated Vinyl Siding Pros, by Google
6 vinyl siding installers earned a spot on this Bethlehem page by Google rating, not by a state file this site doesn't have enough of yet. Wind risk reads Relatively Moderate and hail risk reads Very Low for the county around Bethlehem, exactly the two stresses a panel's ASTM rating is supposed to answer.
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30° / 76°Fnormal January and July mean temperatures
What Bethlehem's climate asks of a vinyl panel
Bethlehem sees a normal January mean of 30°F against a July mean of 76°F, a wide enough spread that vinyl panels visibly expand and contract across the year.
That Bethlehem swing is exactly why installers leave slack at every opening rather than fastening panels tight.
5A is the IECC climate zone for the surrounding county.
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 4.6 mi away.
Wind and hail risk near Bethlehem
On FEMA's National Risk Index, wind risk in Northampton County is Relatively Moderate and hail risk is Very Low.
Both are exactly the two stresses vinyl siding sold near Bethlehem is tested against before a product can carry ASTM certification.
A Relatively Moderate wind rating is one more reason to ask what wind-load class your installer is actually specifying.
- Strong wind
- Relatively Moderate
- Hail
- Very Low
- Hurricane
- Relatively Moderate
- Wildfire
- Very Low
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
6 top-rated vinyl siding installers in and near Bethlehem
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.
Valley Peak Roofing Co.
Siding contractor
- Google rating
- Reviews
- 138
- Area
- Bethlehem 18020
Builders & Management Plus, LLC
Siding contractor
- Google rating
- Reviews
- 51
- Area
- Allentown 18109
HOME SHIELD PRO'S ROOFING & SIDING,
Siding contractor
- Google rating
- Reviews
- 50
- Area
- Bethlehem 18015
Todd Miller Roofing Siding, & Seamless Gutters
Siding contractor
- Google rating
- Reviews
- 71
- Area
- Easton 18045
Alan Kunsman Roofing & Siding
Siding contractor
- Google rating
- Reviews
- 246
- Area
- Freemansburg 18017
Ziggy's
Siding contractor
- Google rating
- Reviews
- 16
- Area
- Bethlehem 18020
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?