Longmont's Highest-Rated Fiber Cement Installers, by Google
A Google rating is what got these 6 fiber cement siding contractors near Longmont onto this list, since a state filing isn't something this site has for this city yet. 15.2 inches of rain falls on Longmont most years, exactly the kind of moisture load a cement-based board is formulated to shrug off.
Google Maps ratings checked · How we rank
15.2 innormal precipitation a year
Rainfall and moisture load in Longmont
Longmont averages 15.2 inches of precipitation a year, with April the wettest month at 2.0 inches.
Fiber cement's cement-and-cellulose composition is engineered specifically for sustained moisture exposure like Longmont sees, unlike a wood-based product left unprotected.
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 1.2 mi away.
What FEMA's risk index shows for Boulder County
Two very different hazards for a Longmont homeowner to weigh, and fiber cement is one of the few common claddings that holds up against both at once.
- Strong wind
- Relatively High
- Hail
- Relatively High
- Wildfire
- Relatively High
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Fiber cement contractors near Longmont, ranked by their Google rating
Review count works like a multiplier here: a 5.0 from a dozen reviewers can still rank under a 4.7 built on a few hundred. That math has nothing to do with licensing, so look up the contractor's license or registration number with the state before you commit.
WestPro Home Exteriors
Siding contractor
- Google rating
- Reviews
- 783
- Area
- Longmont 80501
Glassford Project Management - Roofing Solutions
Siding contractor
- Google rating
- Reviews
- 55
- Area
- Longmont 80501
Siding Design Pro & SDP Renovation
Siding contractor
- Google rating
- Reviews
- 34
- Area
- Longmont 80501
Colorado Superior Roofing & Exteriors
Siding contractor
- Google rating
- Reviews
- 63
- Area
- Longmont 80501
Stone Creek Roofing & Solar
Siding contractor
- Google rating
- Reviews
- 154
- Area
- Longmont 80504
Boulder Valley Windows
Siding contractor
- Google rating
- Reviews
- 11
- Area
- Longmont 80504
Fiber cement questions worth asking before you sign
- Is this product factory-primed or factory-finished, and if primed, will painting happen inside the manufacturer's required window?
- What ground clearance and roofline clearance will the crew actually leave, and does it match the manufacturer's published minimums?
- How will the crew control silica dust when cutting, and what equipment are they using outdoors versus indoors?
- If this home is in a fire hazard zone, is the specific product and assembly rated for it, not just the base material?
- What does the substrate warranty cover, separately from any paint or finish warranty?
- Is this formulation built for {city}'s climate zone, or a generic nationwide version?