Business Details
50+ Years
experience
Custom Windows & Doors Pittsburgh
Thermo Twin Windows has been crafting high-quality windows, doors, and sunrooms in Pittsburgh, PA since 1972. As a 100% employee-owned company, we combine advanced manufacturing technology with meticulous craftsmanship to deliver energy-efficient, durable solutions tailored to homeowners' needs. Our locally manufactured products use premium materials sourced from regional partners, ensuring consistency and sustainability. With over five decades of experience, we maintain rigorous quality control throughout production and installation, supported by a team of seasoned professionals committed to protecting customer property during every project.Our BBB-accredited status and hundreds of five-star reviews reflect our dedication to exceeding client expectations through transparent communication, timely service, and post-installation follow-up. This deep-rooted community presence enables us to offer personalized solutions while maintaining industry-leading standards in both product performance and customer satisfaction.
Services
Window Installation
Door Installation
Sunroom Construction
Super Spacer Technology
Wholesale Supply
Custom Manufacturing
Energy Efficiency Solutions
Details
- Year established: 1972
Highlights and features
- We are 100% employee-owned, ensuring personal accountability in every project
- Locally manufacture windows using premium virgin vinyl materials since 1972
- Maintain computer-automated quality control throughout production process
- Provide free 36-month financing options through Synchrony Bank
- Offer professional installation with post-project cleanup guarantee
Associations and certifications
- Better Business Bureau
What people say
Great professional installation
Friendly salesman
Knowledgeable installers
Excellent work
Timely service
Services
Window Installation
Our custom window installation service combines precision manufacturing with expert fitting for optimal energy efficiency and aesthetics. Each project uses locally sourced virgin vinyl materials and Super Spacer technology to ensure durability and thermal performance. Professional installers complete projects with minimal disruption while maintaining strict cleanup standards.
Door Installation
We provide comprehensive door installation solutions featuring custom-manufactured entry and patio doors with enhanced insulation properties. Our installation teams ensure proper sealing and alignment while preserving home aesthetics throughout the process. All installations include post-service follow-up to verify customer satisfaction.
Sunroom Construction
Our four-season sunrooms are designed for year-round comfort using the same quality materials as our windows and doors. The construction process includes personalized design consultations and professional installation that integrates seamlessly with existing home structures while maintaining energy efficiency standards.
Super Spacer Technology
This innovative technology creates superior thermal barriers in window units through non-metallic spacer systems that reduce heat transfer. The patented design improves overall window efficiency while maintaining structural integrity and longevity in various climate conditions.
Custom Manufacturing
Locally operated manufacturing facilities produce windows and doors using computer-automated systems for precise measurements and consistent quality. Each product undergoes multiple quality checks during assembly to ensure dimensional accuracy and material integrity before leaving our Pittsburgh facility.
Questions
What window types do you offer?
We provide double hung, slider, casement, picture, awning, bay/bow, and garden windows with custom sizing options.
Do you offer financing options?
Yes, we provide 36-month financing through Synchrony Bank with approved credit for qualified customers.
Are your installers employees or subcontractors?
All installation crews are direct employees as part of our 100% employee-owned company structure.
What areas do you serve?
We primarily serve Pittsburgh and Erie metropolitan areas with local manufacturing and branch offices.
Do you have BBB accreditation?
Yes, we maintain Better Business Bureau accreditation with a 4.94/5 customer rating from verified reviews.
What warranty options exist?
We offer comprehensive warranties covering materials and installation workmanship for residential customers.
Reviews (5)
Bob O.
Sep 29, 2021
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Got 6 windows installed, 5 casement windows and one awning window with frosted glass. The install went great, was done in a single day, and the guys were all really nice. We did have an issue with one window, I called their service line and they had people out same day to fix the issue to beyond my expectations. You can measure a company with no mistakes, but the REAL measure of a company is what they do and how they act when a mistake does occur, these guys knocked it out of the park. I will be calling them first when it comes time to replace my horrible basement door!
Delna H.
Apr 09, 2021
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From the sales call to the installation finish, we are extremely satisfied with Thermo Twin's service. Nunzio is a no-pressure salesman and he answered all of our many questions. The team who installed our 10 beautiful windows was excellent, and accolades to Russ Groon (not sure of spelling) and the crew. They are professional, helpful, respectful, prompt, and we appreciated their approach to getting the job done with precision. We would highly recommend this company. Also I'd like to mention "Debbie" who was on top of the scheduling. All in all, a great experience.
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Thomas M.
Dec 07, 2020
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We selected Thermo Twin windows for our home being built in Pittsburgh. We wanted to support a local business. The windows seem high quality, which we will see with time. The issue we had with Therm Twin was that they were quick to accept the order with a 4wk quote for delivery. The order partially delivered in 4 wks, with the remainder back ordered. After a series of mistakes, on their part, the order was finally fulfilled almost 16 wks later. The delivery caused delays in our construction and extended our stay in a rental. I am not impressed with their customer service nor "sense of urgency
Sandra S.
May 07, 2020
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My husband and I decided to get a bay window installed before the pandemic. We were affected by the virus so I called to cancel the installation a month before it was scheduled to be installed. The company couldn't make it out for a measurement anyways. I just received a call from a sales manager asking me why I cancelled. When I told him we were affected by the virus he proceeded to tell me that's a breech of contract and started discussing money. Whaaat??!!! They're trying to shove a bay window down my throat and we're trying to feed a family!!!!! I encourage everyone not
Libby W.
Sep 14, 2018
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Brian came to my parents home to give them a quote for windows. He would not leave until they signed an agreement and were totally badgered into signing. I found out later they totally over payed. It's a shame taking advantage of the elderly. I would never recommend them to anyone!!!
