Veterans & active duty military: 10% off, up to $1,000. Mention it at your estimate.
We replace windows and doors throughout St. Mary’s County — Lexington Park, Great Mills, California, Leonardtown, Hollywood, Mechanicsville, and Charlotte Hall. Jobs range from a single drafty window to a whole-house replacement, a new front entry, or a sliding or French patio door.
Around NAS Patuxent River, new windows and a new entry door are also one of the quicker ways to freshen a house before a PCS move or a listing. We install Andersen windows and Supreme Aluminum products, with doors, hardware, and trim sourced through Build.com.
Swapping a window or door into the opening that’s already there is the simplest version of this job. Enlarging an opening, adding a new door, or cutting in an egress window for a basement bedroom changes the structure of the wall, and that work goes through a building permit from the county’s Department of Land Use & Growth Management, which you can track online in eTRAKiT. We’ll tell you at the estimate which kind of job yours is.
Inside Leonardtown’s town limits, the town’s own zoning and building permit rules apply on top of the county’s. We handle both.
Our process begins with a free in-home consultation and precise measurements. We help you select window styles, door configurations, glass packages, and energy ratings that match your home and performance goals. Our crews remove old units, make any needed frame repairs, and install new windows and doors with proper shimming, sealing, flashing, and interior and exterior trim. We haul away all old materials when the job is complete.
Davis Construction installs Energy Star-certified windows and doors that can reduce heating and cooling costs by up to 15 percent annually. For homeowners across St. Mary’s County, those savings add up significantly over the life of the windows. We walk you through energy performance ratings – U-factor, solar heat gain coefficient, and visible transmittance – so you can make an informed product choice before committing.
As your St. Mary’s County window and door contractor, we install double-hung, casement, awning, bay, bow, picture, and sliding windows, plus entry doors, storm doors, sliding glass doors, French doors, and patio doors. We offer vinyl, wood, fiberglass, and aluminum-clad frame options in a variety of colors and finishes. Our team helps you choose products that improve your home’s appearance while delivering the energy performance and security you need.
Even the best windows underperform when installed improperly. Missing flashing, improper air sealing, or incorrect shimming leads to drafts, water intrusion, and premature failure. Davis Construction’s installation teams are trained in window and door best practices. Every unit is installed to manufacturer specifications and sealed to prevent air and water infiltration – protecting your home and your product warranty coverage.
Most window replacement projects in St. Mary’s County are completed in one to two days. A whole-home replacement with 10 to 20 windows typically takes one to two days depending on the number and complexity of units. Door replacements are usually done in a single day. We work efficiently and leave your home clean at the end of each workday.
A straight replacement in the existing opening is the simple case. New or enlarged openings and egress windows change the structure and go through a building permit from St. Mary’s County Land Use & Growth Management, plus town approval inside Leonardtown. We handle it when it’s needed.
Stop losing money through inefficient windows and doors. Davis Construction is a licensed window and door contractor serving St. Mary’s County and the rest of Southern Maryland. We offer free in-home consultations, transparent pricing, and professional installation backed by a workmanship warranty. Contact us today to schedule your free estimate and start saving energy in your home.