Business Details
50+ Years
experience
Custom Windows and Doors in Pittsburgh, PA
Thermo Twin Windows has been crafting premium windows and doors in Pittsburgh since 1972. As a 100% employee-owned company, we combine advanced manufacturing technology with meticulous craftsmanship to deliver energy-efficient solutions tailored to local needs. Our team takes pride in every project, from custom vinyl windows to sunrooms, ensuring precision from design through installation. With facilities along the Allegheny River, we source high-quality materials locally while maintaining rigorous quality control standards. Our BBB-accredited reputation is built on over 50 years of community-focused service, professional installations, and a commitment to customer satisfaction that extends beyond project completion. Services
Vinyl Windows
Double Hung Windows
Slider Windows
Casement Windows
Picture Windows
Awning Windows
Bay/Bow Windows
Wood Windows
Super Spacer
Entry Doors
Details
- Year established: 1972
Highlights and features
- 50+ years of Pittsburgh-based window manufacturing expertise
- 100% employee-owned company with personal accountability
- Locally sourced materials and in-house quality control
- Professional installation teams with cleanup guarantee
- BBB-accredited with 4.94/5 customer satisfaction rating
Associations and certifications
- Better Business Bureau
- PA Home Improvement Contractor (HIC) PA013012
What people say
Great people doing great work
Professional installers
Pleased with install
Top notch pros
No pressure sales
Services
Vinyl Windows
Our vinyl windows combine durability with energy efficiency through virgin vinyl sourced locally from Chelsea Building Products. Computer-automated manufacturing ensures consistent quality while maintaining thermal performance. These low-maintenance windows resist warping and fading, providing long-term value through reduced energy costs and minimal upkeep requirements.
Double Hung Windows
Elegant double hung windows feature smooth-operating sashes with advanced weatherstripping technology. The design allows independent movement of both upper and lower sashes for optimal ventilation control. Available with optional built-in blinds, these windows maintain aesthetic appeal while improving home energy efficiency through superior sealing performance.
Casement Windows
Casement windows offer unobstructed views with their single-pane design and crank-operated mechanism. Our models feature multi-point locking systems for enhanced security and airtight seals when closed. The vinyl frames resist moisture damage, making them ideal for high-humidity areas while maintaining structural integrity for decades.
Entry Doors
Custom entry and patio doors combine security with aesthetic appeal using reinforced frames and insulated glass packages. Available in vinyl or wood-clad options, these doors integrate with existing window systems for cohesive home design. Installation includes weatherproofing measures to prevent air infiltration and moisture penetration.
Sunrooms
Four-season sunrooms feature thermally efficient glazing systems with optional heating/cooling integration. The aluminum framing system resists corrosion while supporting large glass expanses for maximum natural light. Custom configurations accommodate various home styles while maintaining structural integrity against Pittsburgh's weather conditions.
Questions
What areas do you serve?
We serve Pittsburgh and surrounding areas including Erie, Pennsylvania, with both locations offering the same high-quality products and services.
Are your windows energy-efficient?
Yes, our windows feature Super Spacer technology and virgin vinyl frames that meet ENERGY STAR requirements for superior thermal performance.
How long does installation take?
Most window replacements complete in 1-2 days depending on project size, with sunrooms typically requiring 3-5 business days.
Do you offer financing options?
We provide 36-month financing through Synchrony Bank with approved credit, plus seasonal promotions for qualified customers.
Are you BBB accredited?
Yes, we maintain an A+ rating with the Better Business Bureau and have been since 1972 with zero complaints filed.
What makes you different from competitors?
As 100% employee-owned manufacturers, we combine local production control with installation expertise that competitors using subcontractors cannot match.
