Family-owned. St. Louis grown.
Serving St. Louis since 1953.
Penny Window has been a family-owned St. Louis window and door company since 1953. For over 70 years, the idea has stayed the same: carry brand-name products, install them with our own crews, and give every homeowner a straight, no-pressure price up front.
We install replacement windows, entry and patio doors, and siding, and we run a real glass and window repair shop too. We never use subcontractors, so the crew that measures your job is the crew that finishes it, most installations in just one to two days.
Every job starts with a free in-home estimate and is backed by a limited lifetime warranty on our work. That’s how we have earned St. Louis’s trust, one window at a time, for three generations.
When we say our own crews, we mean people our customers know by name. Installers like Tim and Daveshow up on time, treat your home with respect, and clean up before they leave. It’s the kind of work that keeps showing up in our reviews.
73+
Years serving St. Louis
Family-owned since 1953
10
Communities served
St. Louis city, county, and St. Charles
6
Projects we can show you
Real, photographed local jobs
1-2
Days for most installs
Our own crews, no subcontractors
Mission, vision, and values.
We exist to make homes across the St. Louis metro brighter, quieter, and more comfortable, one careful installation at a time. Every job starts with a free in-home estimate and a straight price, never a sales pitch, and ends with work we would put on our own family's home.
We want to be the first call a homeowner makes when it is time to replace their windows and the name a neighbor passes along without a second thought. Not the biggest, the one people trust, because we have earned it window by window since 1953.
These are the standards behind every job, the things we will not cut corners on no matter the deadline.
Straight estimates
We measure your openings in your home and give you a clear, no-pressure price up front.
Our own crews
We never use subcontractors, so the crew that measures your job is the crew that finishes it.
Brand-name products
Andersen, Silver Line, Wincore, Atrium, and Quaker, installed to last in the Midwest.
Backed by warranty
Family-owned since 1953 and standing behind every job with a limited lifetime warranty on our work.