About Us

ProVia Exterior Door
Window Contracting Team Replacing Windows
Window Contractor Installing Replacement Windows

YOU CAN COUNT ON US

Window Contractor Serving St. Louis (and Doors).

We're a family-owned and operated, window and door contractor serving St. Louis and surrounding cities.  Our company was founded in 2014 by our founder, Andrew Lombardozzi. A carpenter by trade, Andy has over 15 years of windows and doors installation experience. Trained and mentored by his father, a 40-year veteran; together they have recruited the best in skilled and dedicated men and women to form the STL Windows and Doors team.

Our priority is to exceed industry standards and customer expectations. We offer the best replacement window and exterior door products. We serve Saint Louis, Saint Charles, Jefferson, Franklin, and Lincoln counties and guarantee you'll always be treated like our family, with respect and close personal attention.

YOU CAN COUNT ON US

Window Contractor (and Doors)

Team STL Windows and Doors

We're a family-owned and operated, window and door contractor serving St. Louis and surrounding cities.  Our company was founded in 2014 by our founder, Andrew Lombardozzi. A carpenter by trade, Andy has over 15 years of windows and doors installation experience. Trained and mentored by his father, a 40-year veteran; together they have recruited the best in skilled and dedicated men and women to form the STL Windows and Doors team.

Our priority is to exceed industry standards and customer expectations. We offer the best replacement window and exterior door products. We serve Saint Louis, Saint Charles, Jefferson, Franklin, and Lincoln counties and guarantee you'll always be treated like our family, with respect and close personal attention.

STL Windows and Doors is a certified Provia Window and Door dealer.

Replacement Windows

  • Double Hung
  • Sliders
  • Casement & Awning
  • Picture
  • Garden
  • Bay & Bow
  • Architectural
  • Cut Out Windows  (adding where no opening exists)

Exterior Doors

  • Entry Doors
  • Storm Doors
  • Patio Doors
  • Cut Out Doors (adding where no opening exists)

MEET OUR TEAM

We love what we do. Our pledge: to take great care of your needs before, during and after the job.

HUMBLY CONFIDENT

Window Contractor (and Door) Skills

As window contractors (and doors), we have decades of experience. Whether you hire us as a product advisor or an actual installer; no matter the need, we can help. We'll be meticulous in taking precise measurements of your St. Louis home and get your project done right, on budget, and on time.

We're Accredited & Back-Up Our Workmanship

A Rating with Angie's list
HomeAdvisor Elite Service Provider
HomeAdvisor Top Rated
A+ Rating with BBB
NARI Member
EPA Lead Safe Certified
10 Year Workmanship Guarantee

OUR SERVICE AREA

If you need window installation (or door) across Saint Louis, Saint Charles, Jefferson County, Franklin County, or Lincoln Counties, count on us to deliver. We're continually expanding our service area, so always check with us using our free no-obligation estimates here.

Affton
Arnold
Augusta
Ballwin
Barnhart
Brentwood
Bridgeton
Cedar Hill
Chesterfield
Clayton
Concord
Cottleville
Crestwood
Creve Coeur
Dardenne Prairie
De Soto
Defiance
Des Peres
Earth City
Ellisville
Eureka
Fenton
Festus
Flinthill
Ferguson

Florissant
Foristell
Frotenac
Glencoe
Gray Summit
Grove
Hazelwood
High Ridge
Hillsboro
House Springs
Imperial
Kirkwood
Labadie
Ladue
Lake Saint Louis
Lemay
Lowry City
Manchester
Maryland Heights
Mehlville
New Melle
O'Fallon
Oakville
Old Monroe
Olivette

Overland
Pacific
Pevely
Richmond Heights
Saint Albans
Saint Charles
Saint Louis
Saint Peters
South County
St. Paul
Sunset Hills
Town and Country
Troy
Union
Valley Park
Villa Ridge
Warrenton
Warson Woods
Washington
Webster Groves
Weldon Spring
Wentzville
Wildwood
Winfield

We’re continually expanding our service area so always check with us using our free no-obligation estimates here.

Window Contractor FAQ

Here are some frequently asked questions about us as window contractors.  If you have other questions, please get in touch with us!

How much does it cost for someone to install a window?

The cost of installing a window depends on the type of window. The average a homeowner can expect to pay on average is from $100 to $400 per regular window installed. Labor rates fluctuate depending on inflation rates, product pricing, and availability.

Why do window companies charge so much?

Installing windows is very labor-intensive.  Most homes are unique, with different sizes windows and types of windows.  Increased inflation rates also mean higher manufacturing costs for window contractors. The best thing to do is request a free estimate to get a specific quote on what a window installation project would cost you.

Do handymen install windows?

The answer depends mainly on the experience of a handyman. Most can perform minor repairs and even patch up work on windows. We recommend that whatever window brand you invest in, you choose a window contractor certified by that manufacturer.