Patio Door Replacement in St. Michael, MN: Deck and Walkout Doors
Drafty patio doors are one of the most common complaints in St. Michael's 1990s and 2000s houses, and a lot of them have two: one to the deck, one out of the walkout.
Reply within one business day. Or call / text 763-204-2099.
Patio door replacement in St. Michael, MN, often means two doors on one house: the main-floor slider to the deck and the walkout door below it. JMB Builders measures each opening, orders the doors you choose, removes the old units, fixes soft wood at the sill, sets each new door in a sill pan with flashing, and trims inside and out. Quoted per door from your photos or a free in-home estimate.
- Priced per door
- Deck-level and walkout doors
- Sill rot repaired before the new door
St. Michael homes from about 1995 to 2010 tend to share a layout: a slider off the kitchen to a deck, and on a walkout lot, a second patio door in the lower level. After twenty-plus winters those doors are the draftiest spot in the house. The weatherstrip is crushed, the panel no longer pulls tight, and on many the insulated glass has fogged.
The two doors fail in different ways. The deck door takes snow and rain on the deck boards outside it, and water that got past the sill for years can soften the subfloor and rim. The walkout door sits close to grade, where snow piles against it and the bottom of the frame stays wet in spring. We check for both when the old door comes out and fix the wood before the new door goes in.
Replacing both at once means one order, one install visit and matching doors. Doing one now and one later works too; we note the model so the second one matches.
Get a written quote for this job
Three photos and a sentence is enough: a reply within one business day, or ask for a free in-home estimate. Or text the photos to 763-204-2099.
What you supply
- Your door choices: frame, color, glass, grilles and which panel slides
- Photos of each door inside and out, plus the floor at each sill
- Whether you want the two doors to match
- Casing paint color — painting is a separate quote line, or paint it yourself
What JMB supplies
- Measurement of each opening and the order for the new doors
- Removal and haul-away of the old doors and trim
- Subfloor, rim or bottom-plate repair where the sill leaked
- Sill pans, flashing tape, foam and sealant
- Doors set square, rollers and locks adjusted, screens fitted
- Interior casing and exterior trim
- Finished photos in your job folder
How it is priced: per door
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- The doors you choose and their glass
- Deck-level vs. walkout door, and access from outside
- Rot found at the sill once the old door is out
- Slider vs. hinged patio door
- Two doors in one visit vs. separate visits
- Painting new casing, quoted as its own line
How long it takes
One patio door: most of a day. Two doors in one visit: about two days, plus any sill repair.
How your project works
- 1
Photos or a visit
Send photos of each door and the floor at the sill, or book a free in-home estimate. You hear back from us within one business day.
- 2
Measure and order
We measure each opening in person and order the doors once you approve the quote. Nothing is torn out until the doors are here.
- 3
Out, repair, in
Old door out, the sill and subfloor checked and repaired, the new door set in a sill pan, flashed, foamed and sealed. The opening is closed the same day.
- 4
Trim and check
Casing inside, trim outside, rollers, lock and screen adjusted, and photos of the finished door in your job folder.
Patio Door Replacement in St. Michael, MN: Deck and Walkout Doors: questions, answered
Should I replace my deck door and walkout door at the same time?
If both are worn, doing them together means one order, one install visit and doors that match. If only one is bad, replace that one now. We record the model and color so the second can match later.
Why is the floor soft in front of my patio door?
Water got under the sill, usually for years, through a failed corner seal or a missing sill pan. The subfloor and sometimes the rim board under the door rot. We cut out the soft wood and replace it before the new door goes in, and the new door sits in a sill pan so it does not happen again.
Is a walkout basement patio door different from the one upstairs?
The door is often the same type, but the location is harder on it. A walkout door sits low, close to grade, where snow piles up and the bottom of the frame stays wet. We check the framing below it and make sure the grade and sill keep water moving away.
Can my sliding door be replaced with a hinged patio door?
Yes, in most openings. A hinged door swings into the room, so it needs clear floor space. Some owners pick a slider upstairs where the kitchen table sits and a hinged door in the walkout.
Do you need a permit to replace a patio door in St. Michael?
A same-size replacement often does not need one, but it depends on the city and the job. Changing the size of the opening is more likely to need a permit. We check with the City of St. Michael building department and pull it when it is required.
What patio door glass is best for a Minnesota winter?
Low-E insulated glass with argon is the standard for a reason, and triple-pane is an option on many doors. Ask about the glass package on both doors when comparing quotes; it makes more difference in comfort than the frame color does.
Recent JMB work, from our job log
59 installs recorded across 30 Twin Cities communities since Dec 2025. Window and door installs for homeowners and the builders we work with. Counts come straight from our job log; no customer names.
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Read morePage reviewed October 9, 2026 · JMB Builders LLC, MN license BC809005 · All by city pages
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