ClimateGuard

What ClimateGuard does

ClimateGuard Windows and Doors is a privately held, locally owned manufacturer of custom vinyl, aluminum, and fiberglass windows and doors, founded in 1975 and headquartered in Chicago, Illinois. The company operates a single manufacturing facility in the Logan Square neighborhood and self-describes as the largest vinyl window manufacturer in Chicago, with cumulative production exceeding 2 million windows and 300,000 completed projects across 46 years. Its product portfolio is tiered: UltraView (premium vinyl), ProSource (builder vinyl), and PrimeAluminum (aluminum for condominiums and high-rises), supplemented by Infinity by Marvin fiberglass windows sold through a reseller partnership. All products incorporate Cardinal Glass LoE coatings (LoE-270, LoE-366, Neat) packaged under ClimateGuard's proprietary uShield system (Pro, Plus, Max tiers) with argon gas fill and Intercept Warm Edge spacers, and are NFRC-certified and ENERGY STAR qualified.

ClimateGuard serves three primary customer segments: residential homeowners (its core), contractors and builders (via a dedicated pricing portal), and condominium/high-rise buildings (via the PrimeAluminum line). Distribution combines direct-to-consumer channels — a flagship factory showroom in Logan Square, a downtown Chicago showroom, and four Studio41 Home Design Showrooms across the metro (Highland Park, Schaumburg, Lincolnwood, Palatine), plus a South Side Chicago location — with free in-home estimates and a 24/7 contractor quoting portal. Pricing is quote-based with a price-match guarantee and occasional promotions (e.g., buy-one-get-one 40% off, deferred-payment financing). Geographic reach covers Illinois, Wisconsin, and Indiana. The company is founder/owner-operated with no disclosed private equity, venture capital, or parent-company ownership, and offers a lifetime transferable warranty on vinyl windows.

Name

ClimateGuard

Legal name

ClimateGuard Windows and Doors

Website

https://climateguardwindows.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Window and Door Manufacturing

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Doors, Windows & Millwork Hardware Retail (Locks, Hinges, Handles) (CRAIADAJ)

akta.pro secondary industries

Screens, Storm Doors/Windows & Insect Protection Systems (IMADAIAK), Privacy Screens, Lattice & Windbreak Installation/Repair (HSAIAJAJ)

Keywords

• Custom window manufacturing
• Door fabrication
• Vinyl window products
• Fiberglass window systems
• Aluminum awnings canopies

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure, Technology or R&D

Revenue model

1. Window Sales: Sale of custom-built vinyl, aluminum, and fiberglass windows directly to homeowners and contractors. Products manufactured in Chicago facility with various series targeting different price points and performance requirements.
2. Door Sales: Sale of replacement doors including Imperial patio doors, UltraView patio doors, and entry doors. All manufactured locally in Chicago facility.
3. Professional Installation Services: Complete installation services including removal and disposal of old windows, professional installation, and post-installation service support.
4. Glass Block and Specialty Products: Sale of specialty windows including glass block windows, basement escape windows, storm windows, and aluminum canopies/awnings.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

ClimateGuard manufactures and sells custom windows, doors, awnings, canopies, glass block products, fences, gates, ornamental iron, and railings from its Chicago facility. The company operates its own factory showroom and partner showrooms (Studio41) and offers professional installation services alongside its manufactured product lines. It is positioned as the largest vinyl window manufacturer in the Chicago market, offering multiple product lines (UltraView, ProSource, PrimeAluminum, Infinity by Marvin) and Cardinal LoE glass packages.

Product overview

ClimateGuard is a window and door manufacturer offering three distinct vinyl window product lines (UltraView as the premium tier, ProSource as the builder-grade tier, and PrimeAluminum for aluminum applications), supplemented by Infinity by Marvin fiberglass windows. The product portfolio includes multiple window types (Double Hung, Single Hung, Casement, Awning, Slider, Picture, Bay & Bow, Special Shape, Glass Block, and Utility Windows) and door products (Imperial and UltraView Patio Doors, Entry Doors, Storm Doors). Glass technology offerings include uShield Glass Packages (Pro, Plus, Max) incorporating Cardinal LoE 270, LoE 366, and Neat Glass, plus specialty options (tempered, laminated, frosted, tinted). Additional products include Aluminum Canopies & Awnings, Iron Window Guards, Columns & Railings, and StormShield Storm Windows & Doors. All products are manufactured in Chicago since 1975.

Differentiator

Problem solved

Functional benefit

Brands

• UltraView: Standard vinyl windows - most popular window series featuring superior strength and durability
• ProSource
• PrimeAluminum
• uShield
• StormShield
• Infinity by Marvin

Products and services

• UltraView Windows
• ProSource Windows
• PrimeAluminum Windows
• Infinity by Marvin Fiberglass Windows
• UltraView Patio Doors
• Imperial Patio Doors
• Entry Doors
• StormShield Storm Windows and Doors
• Glass Block Windows
• Basement Escape Windows
• Bay and Bow Windows
• Special Shape Windows
• Aluminum Canopies and Awnings
• Cardinal LoE 270 Glass
• Cardinal LoE 366 Glass
• Cardinal Neat Glass
• uShield Glass Packages
• Professional Installation Services

Quantifiable outcome

• 2 million+ windows installed in Chicago over 46 years
• +6 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Cardinal Glass IndustriescoreTechnology or IntegrationCardinal Glass is the exclusive supplier of ClimateGuard's proprietary glass technology including LoE²-270, LoE³-366, and Neat glass products. These technologies provide ClimateGuard's windows with industry-leading energy efficiency, UV protection, and self-cleaning properties.
• Infinity by MarvincoreTechnology or IntegrationClimateGuard offers Infinity by Marvin fiberglass windows featuring Ultrex® fiberglass material - 8x stronger than vinyl. Marvin has over 100 years of window manufacturing heritage. ClimateGuard serves as a local dealer for these premium fiberglass replacement windows.
• Studio41 Home Design ShowroomcoreChannel Partner/ Reseller/ DistributorStudio41 operates multiple home design showrooms throughout Chicago metro where ClimateGuard products are displayed and sold. Showrooms are located in Highland Park, Schaumburg, Lincolnwood, and downtown Chicago.
• National Fenestration Rating Council (NFRC)minorOthersNFRC provides third-party certification for window thermal and structural performance. ClimateGuard's products undergo NFRC testing and certification for energy efficiency compliance and ENERGY STAR qualification.

Scale indicators6 records

Recent moves6 records

Expansion highlights3 records

Direct peers

• Renewal by Andersen: Andersen's full-service D2C replacement subsidiary with in-home sales and signature Fibrex composite windows. Closest comparable to ClimateGuard's consultative, in-home-estimate replacement motion.
• Marvin Windows and Doors: Premium window manufacturer whose Infinity by Marvin fiberglass line ClimateGuard resells; Marvin also competes directly at the high end of the same Chicago replacement market ClimateGuard serves.
• Window World: Largest US replacement window franchise network with national advertising and standardized vinyl product lines. Competes with ClimateGuard for the same Chicago-area D2C replacement customer.
• Pella Corporation: Major US window and door manufacturer with vinyl, wood, and fiberglass lines plus a Pella Replacement D2C division. Competes head-to-head with ClimateGuard on premium vinyl windows and replacement projects nationwide.
• Andersen Windows & Doors: Largest US window and door manufacturer with broad vinyl, wood, fiberglass, and composite lines sold through dealers, big-box retail, and the Renewal by Andersen D2C replacement subsidiary. Directly competes with ClimateGuard across vinyl and replacement categories in the Chicago market.
• Champion Windows: D2C replacement window and sunroom company with regional showrooms and direct sales motion. Directly comparable sales model to ClimateGuard's factory showroom + in-home estimate approach.
• Ply Gem (Cornerstone Building Brands): One of North America's largest vinyl window and siding manufacturers, with strong builder-channel presence — directly comparable to ClimateGuard's ProSource builder-grade offering.
• JELD-WEN: Large multi-category window and door manufacturer with vinyl, wood, and aluminum lines sold through big-box retail and pro channels. Competes with ClimateGuard on price-sensitive vinyl replacement and new construction.

Broad incumbents

• Lowe's: National home improvement retailer selling major window brands and installation services — competing for DIY-adjacent and pro replacement customers in ClimateGuard's Chicago metro territory.
• Home Depot: Major home improvement retailer that stocks and installs competing vinyl and fiberglass replacement windows from Andersen, JELD-WEN, and Pella — competing for the same Chicago homeowner through a different go-to-market model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UChOxO-5gwVg64nZ99jbvXYg
• Facebookfacebook.com/climateguardwindows
• Instagraminstagram.com/climateguard_windows
• Pinterestpinterest.com/climateguardwin/_created

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ClimateGuard