New construction means we start with a clean deck and build the roofing system properly from the first layer. Alleghany Roofing & Maintenance has installed new roofs on hundreds of new builds across Alleghany, from custom homes to spec builds, from room additions to detached structures.
Whether it's GAF Timberline HDZ, Owens Corning Duration, CertainTeed Landmark, or a standing seam metal system, our Alleghany crews install it the way the manufacturer requires. Factory-certified installation means your warranty is fully backed from day one.
Our New Roof Installation Process
Design Consultation
We review your building plans, discuss material options, and calculate ventilation requirements. Roof pitch, attic space, local code amendments, and your aesthetic preferences all factor into the recommendation.
Preparation
Materials delivered and staged on-site the day before installation. Shingle pallets, underlayment rolls, flashing stock, ridge vent, and fasteners, everything confirmed against the project spec sheet.
Certified Installation
Installation follows IRC building code and manufacturer requirements. Proper overlap, correct fastener patterns, sealed penetrations, and balanced ventilation. Our crews are factory-trained and know the installation manuals by heart.
Inspection & Warranty
We schedule the building inspection and walk the roof with the inspector. Your manufacturer warranty gets registered the same day the roof passes inspection. You receive warranty paperwork within a week.
What Alleghany Customers Say
"Responded fast and got the job done right the first time. Crew was polite, professional, and cleaned up everything. Would absolutely hire again."
"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."
"We called expecting to wait days, but they were here the same afternoon. Fair pricing, quality work, and they kept us informed every step of the way."
Why Choose Alleghany Roofing & Maintenance for New Roof Installation?
Builder Coordination
We work directly with your GC on scheduling, staging, and inspections. On-time delivery and clean work that doesn't slow down the rest of the build.
Material Selection Guidance
Shingles, metal, flat systems. We install all of them and help you choose based on your budget, design, and the demands of CA climate.
Code Compliance
Every installation meets IRC building code and local Alleghany amendments. Proper underlayment, ice barrier, and fastener patterns documented for inspection.
Full Manufacturer Warranty
Factory-certified installation means your new roof warranty is fully backed from day one. No gaps, no exclusions from improper installation.