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Exterior doors in St. Louis

Replace drafty or damaged exterior doors in St. Louis: fiberglass, steel and wood entry doors, patio and storm doors. Call for a free in-home estimate.

Stained fiberglass craftsman entry door with sidelites and transom on a brick home

Your exterior doors are used every day, and they take a beating from St. Louis heat, humidity, storms and freeze-thaw winters. A front door that sticks, lets in drafts, or shows rot around the frame costs you comfort, security and curb appeal. Exterior Building Solutions replaces and installs exterior doors for homes across Greater St. Louis, St. Charles County and the Metro East, including front entry doors, back and side doors, patio doors and storm doors. We look at the whole opening, not just the door slab, so your new door seals, locks and operates the way it should.

Signs it is time to replace an exterior door

Some problems can be fixed with new weatherstripping or hardware. Others point to a door or frame that has reached the end of its life.

Drafts or daylight around the edges, even with new weatherstripping.
A door that sticks, drags or will not latch without force.
Soft, rotted or water-stained wood at the frame, threshold or brickmold.
Cracked, warped, dented or rusted door panels.
Fogging between the panes of glass inserts or sidelites.
Locks that are hard to operate or a door that feels insecure.

Fiberglass vs steel vs wood entry doors

Fiberglass entry doors resist dents, rot and rust, insulate well and can be stained to look like wood, which makes them a popular all-around choice for St. Louis homes. Steel doors are strong and budget-friendly with good insulation, but can dent and should be kept painted to prevent rust. Wood doors offer unmatched natural character for historic and custom homes, but need regular refinishing and a covered entry to hold up well. We help you weigh appearance, upkeep, security and energy efficiency for your entry.

Patio doors and storm doors

Sliding patio doors save floor space and bring in light, while hinged French patio doors offer a classic look and a wide opening. Worn rollers, failed seals and foggy glass are common reasons to replace them. Storm doors add a layer of protection in front of your entry door, help with ventilation through screens, and shield the main door from weather. Ask us which combination suits each doorway on your home.

What a proper exterior door installation includes

How do you replace an exterior door the right way? Most replacements use a prehung door, which arrives already mounted in its own frame. The old door and frame are removed, the rough opening and subfloor are checked for rot, and a sill pan or flashing is added so water drains out instead of into the floor. The new unit is set level and plumb, shimmed, insulated around the frame, sealed and trimmed, and the hardware and threshold are adjusted until the door closes and seals evenly. Skipping any of these steps is why many do-it-yourself door installs leak or bind within a few seasons.

Coordinate doors with windows, siding and trim

A door replacement often touches the same exterior details as windows, siding and trim. Planning these together keeps colors and trim profiles consistent and avoids opening the same wall twice. If you are already replacing windows or siding, ask us about doing your entry and patio doors at the same time.

How your project works

1
Call or request
Reach our Ellisville team by phone or ask for a free inspection.
2
On-site inspection
We document conditions with photos and measurements.
3
Clear plan
You get options, scope and scheduling in plain language.
4
Expert install
Our crew completes the work and cleans up the job site.

Start with a call: (314) 370-7897

Exterior door materials compared

Exterior door materials compared
Material	Upkeep	Best for
Fiberglass	Low; resists dents, rot and rust	Wood look with low maintenance and good insulation
Steel	Moderate; keep paint intact to prevent rust	Security and value on side and back entries
Wood	High; regular refinishing	Historic homes and covered entries

Common questions

How much does it cost to replace an exterior door?

Cost depends on the door type and material, glass and sidelites, hardware, and whether the frame or subfloor needs repair. We give you a written estimate after measuring and inspecting the opening.

What is the best material for an exterior door?

For most homes, fiberglass offers the best balance of durability, insulation and low upkeep. Steel is a strong value choice, and wood suits historic or covered entries where its look matters most.

Can you replace just the door and not the frame?

Sometimes. If the frame is square, solid and free of rot, a slab replacement can work. Most homes get a better seal and longer life from a prehung door that replaces the frame and threshold too.

How long does exterior door installation take?

A typical entry door replacement takes part of a day. Doors with sidelites, transoms or frame repairs can take longer, and we confirm the timing with you before work starts.

Do new exterior doors save energy?

A well-insulated door that is properly sealed and installed reduces drafts around the opening. The installation matters as much as the door: gaps around the frame undo the benefit of an efficient door.

Who installs exterior doors near me?

Exterior Building Solutions installs exterior doors throughout St. Louis County, St. Charles County and the Metro East from our Ellisville office. Call (314) 370-7897 to schedule.