Denver siding takes a beating from hail, intense UV and freeze-thaw cycles. Fiber cement, especially James Hardie products, has become the default upgrade for many Front Range homes because it resists hail and fire better than vinyl or cedar.
The contractors below install and replace siding across the Denver metro, and several hold James Hardie preferred or elite status.
| Company | Base | Known For | Best For |
| Bellwether Windows, Siding and Doors | Denver | James Hardie, windows, doors | Whole-exterior upgrades |
| Lifetime Windows and Siding | Denver (E 40th Ave) | Hardie siding, windows | Long warranty coverage |
| Scottish Home Improvements | Denver metro | James Hardie ColorPlus | Townhomes and HOA communities |
| GS Exterior Experts | Front Range | Hardie siding, roofs, gutters | Full exterior after hail |
| Ideal Siding Denver | Denver | Siding replacement | Siding-only projects |
| 5280 Exteriors | Denver | Hardie siding, windows | Mountain and metro homes |
Bellwether installs James Hardie’s full catalog along with windows and doors and holds an A+ BBB rating. A good fit if you want siding and windows done together.
Lifetime is a James Hardie preferred contractor and offers an unlimited labor warranty on its installations for the life of the home.
Scottish Home Improvements has installed more than $10 million in James Hardie ColorPlus siding and works on everything from single-family homes to large multi-family communities.
GS Exterior Experts is a James Hardie elite preferred contractor that also handles Class 4 roofs, soffits and gutters, useful after a hailstorm damages the whole exterior.
Ideal Siding Denver is a local siding contractor with strong reviews on Angi and HomeAdvisor and a focus on siding replacement.
5280 Exteriors is one of a small number of James Hardie elite preferred contractors in Colorado and works in both the metro and mountain communities.
Manufacturer certification, such as James Hardie preferred or elite status, often unlocks better warranties.
Ask whether the contractor has handled siding insurance claims and how they handle supplements.
Make sure the quote includes house wrap, trim, flashing, paint or ColorPlus finish, and disposal.
Product warranties are long, but labor warranties vary widely. Get it in writing.
New siding is a large investment that should last decades. Compare two or three of these contractors, check their manufacturer status and ask detailed questions about the install before signing.