Spire Building Supplies Delivers a New Gold Standard with Inpire Windows Engineered for Builders, Backed by Performance
The INSPIRE VINYL SH 3070 – Single Hung Window combines sleek design and energy-saving features for homeowners seeking a premium window solution. With a white vinyl frame and elegant bronze laminate finish, this window delivers exceptional durability and style
DENVER, CO – July 15, 2025 – Spire Building Supplies, a leading provider of construction materials across North America, has officially released Inpire Windows, a high-performance window system engineered specifically for professional builders, remodelers, and architectural firms looking for superior energy ratings, installation efficiency, and customizable aesthetics.
Developed in collaboration with building science experts and tested across multiple climate zones, Inpire Windows are poised to become the go-to solution for residential and light commercial projects requiring more than just code compliance — but also reliable, long-term performance.
Builders and architects don’t just need a product they need a partner in quality. With Inpire Windows, we’re delivering a system that supports faster installs, fewer callbacks, and a better experience for both the contractor and the homeowner.
Built for the Trade: What Makes Inpire Windows Different
Engineered with contractor efficiency in mind, Inpire Windows are easy to install, structurally sound, and backed by one of the most robust quality control systems in the window industry.
Key technical features include:
Precision-milled frames with built-in nailing fins, weep holes, and integrated sill flashing
Insulated, multi-chambered sashes to reduce thermal bridging
Double and triple glazing options with high-performance low-E coatings
Reinforced corners and locking systems for increased strength and wind load resistance
NFRC-rated and ENERGY STAR® qualified for all U.S. climate zones
Installers benefit from consistent sizing tolerances, pre-attached hardware, and factory-applied weather seals all of which reduce jobsite time and rework.
Jobsite Proven, Spec-Ready
From suburban developments to infill projects, Inpire Windows offer flexibility for a range of architectural requirements:
Available in casement, awning, double-hung, fixed, bay, and specialty shapes
Designed for both new construction and retrofit framing
Comes with standard or extended jamb depths
Offers full documentation including CSI spec sheets, U-value charts, and wind resistance ratings
We were tired of over-promised specs that didn’t hold up on-site. Inpire Windows have lived up to every promise they’re airtight, clean to install, and look great once trimmed out.
Designed with Architects in Mind
Inpire is more than a builder’s window — it’s an architectural asset. With minimalist profiles, clean angles, and a wide palette of powder-coated and simulated wood finishes, the line is built to integrate seamlessly into modern, transitional, and traditional project styles.
Architect-friendly features include:
Modern sightlines for increased glass area
Frame color matching for cladding, trim, and siding options
CAD files and 3D modeling support available upon request
Partnership pricing for design/build firms and residential architects
We’ve spec’d Inpire Windows on multiple high-efficiency homes. They bring a high-end look without blowing up the budget and their U-values help us hit our passive targets.
Performance That Pays Back
Inpire Windows help builders and their clients qualify for energy rebates and tax credits, making them a smart investment in both construction and long-term value. Their low SHGC and air infiltration rates outperform many major competitors in both lab testing and real-world climates.
Efficiency highlights:
U-values as low as 0.21 (triple-pane model)
SHGC values optimized per region (South, North, and mixed climates)
Air leakage ratings below 0.10 cfm/ft²
Optional laminated glass and impact-rated models for hurricane zones
Now Shipping from Spire Distribution Centers
Inpire Windows are now available at all Spire Building Supplies hubs across the Midwest, Rocky Mountain, and Pacific regions, with expanded distribution to the Northeast and Southeast planned for fall 2025.
Ordering and support include:
Online ordering with project tracking
On-site delivery staging options for large-scale jobs
Direct access to technical support and installation training
Volume pricing and job-specific quoting for approved contractors
With Inpire, you’re getting more than a product — you’re getting a building partner, added Marks.
About Spire Building Supplies
Spire Building Supplies is one of North America’s leading distributors of structural materials, energy-efficient solutions, and high-performance building products. Known for its builder-first service, Spire supports thousands of contractors and construction professionals with premium brands, fast fulfillment, and a commitment to quality.
The launch of Inpire Windows further cements Spire’s mission to provide durable, energy-smart solutions that are field-tested and future-ready.
