Patio Door Replacement in Little Canada, MN
The slider off your Little Canada kitchen opens onto a patio slab that has settled toward the house, and after every rain there is water on the floor.
Reply within one business day. Or call / text 763-250-3621.
Patio door replacement in Little Canada MN is usually the slider on a 1950s–70s rambler or split onto a patio poured level with the floor, where rain and snowmelt pool at the threshold and come in under the track. JMB Builders orders the door, repairs the sill, sets it in a sill pan with flashing, and sets the threshold to shed water. Priced per door. Send photos and we reply within one business day, or book a free in-home estimate.
- Priced per door, new door included
- Thresholds set to shed water from a flat patio
- Sliders onto patios, decks and walkouts
Little Canada's ramblers and splits from the 1950s–70s got their patio doors in one of two ways: with the house, onto a poured patio a step down from the floor, or in a 1970s remodel, cut into the kitchen wall onto a slab poured flush for an easy step. Fifty years of frost have tipped a lot of those slabs toward the house. Rain and snowmelt now pool at the threshold, the old slider has no sill pan, and the water runs under the track into the subfloor. The door itself is usually aluminum or early vinyl, fogged, dragging, and letting in a draft along the floor.
We fix the door and the way the water meets it. The old door comes out, the subfloor and rim under the sill are checked and repaired, and a sill pan goes down that catches anything that gets past the track and sends it back outside. The new door is set level and square with its threshold a touch above the slab and the exterior sealant joint shaped to shed, and flashing is lapped at the sides and head. If the slab pitch is bad enough that water will still stand against the door, we say so and quote what would fix it.
A deck door or a walkout slider goes in the same way, with the deck ledger looked at while the sill is open. Little Canada is about 45 minutes from Zimmerman and we schedule it as a full-day trip. Our job records show 1 install in Little Canada, Jun 2026. Painting is quoted as a separate line — or leave it primed and caulked and paint it yourself.
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 763-250-3621.
What you supply
- Slider or hinged door, frame material, color and glass
- Which panel slides, or let us suggest it from the patio and the kitchen layout
- Photos of the door inside and out, the threshold where it meets the slab, and the patio after a rain if you can
What JMB supplies
- In-person measure and the door order through ABC Supply, with options such as MI Windows, ProVia or Therma-Tru
- Old door and trim removed and hauled away
- Subfloor and rim repair under the sill as found
- Sill pan, flashing tape, low-expansion foam and an exterior sealant joint shaped to shed water
- Threshold set a touch above the slab; frame set level and square; rollers, lock and screen adjusted
- A note on the slab pitch at the estimate, with a fix quoted if the water will still stand
- Interior casing and exterior trim, and 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:
- Slider vs. hinged door, and the glass package
- Frame material and threshold style
- Rot under the sill or at the rim from years of standing water
- Slab or drainage work at the threshold, quoted on its own
- Same-size swap vs. raising or widening the opening
- Exterior trim against lap siding, stucco or brick
- Painting of new casing, quoted as a separate line
Send photos of the door, the threshold against the slab, and the patio after a rain. The free in-home estimate includes a level on the slab.
How long it takes
One patio door: most of a day on site in a sound opening. Subfloor repair adds hours. Door lead time is written on the quote.
How your project works
- 1
Send photos, get a written quote
Send three photos of the space and a sentence about what you want. You get a clear, itemized reply within one business day. Prefer a look in person? A free in-home estimate is always an option.
- 2
Pick materials, or bring your own
We help you choose profiles and materials that fit the house and the budget, or match your existing millwork exactly — or you buy the door or trim yourself and we install it. Everything is confirmed before the crew is scheduled.
- 3
Clean, precise installation
The crew shows up on time, protects floors and furniture, and installs with tight joints and consistent reveals. Photos of the finished work go in your job folder.
- 4
Walkthrough and invoice
We walk the finished work with you. If anything is not right, we fix it before we call the job done. Then one invoice, paid by check or direct deposit — no card fees, no payment links.
Situations and options
Vinyl slider, draining sill
The usual replacement for a rambler slider: insulated frame, low-E glass, and a sill with weep holes that drain out. Pick a line with an adjustable lock and good rollers.
Fiberglass slider, taller threshold
A stiffer frame and a threshold that stands higher above a flat slab, for a door where water pools. Holds a dark color on a sunny patio wall.
Hinged door with a low-profile sill
A single hinged door or French pair with a compression seal, where you want a step-free threshold and the slab drains well enough to allow it.
Patio Door Replacement in Little Canada, MN: questions, answered
Why does water come in under my patio door when it rains?
The slab outside has settled toward the house, so rain and melt pool at the threshold instead of running away. An old slider has no sill pan, and the track is not sealed to the floor, so the water goes under it. A new door on a sill pan with the threshold set a little above the slab sends that water back out.
Can a new door fix the problem if the patio still slopes toward the house?
It will keep the water out of the floor, because the sill pan and the threshold height handle what pools. But standing water against a door is hard on any threshold, so if the slab pitch is bad we tell you and quote a fix for the slab or the drainage as its own line. You decide which parts to do.
What is a draining sill on a patio door?
A sill with weep holes on the outside face that let water in the track run out instead of collecting. Most new sliders have one. Combined with a sill pan under the frame, it means water that gets past the panel has two ways out and none into the house.
Do I need a permit to replace a patio door in Little Canada?
The City of Little Canada building department sets that rule, and a change to the opening size or the framing is what usually brings a permit into it. We check for your address and pull a permit when one is needed.
Should the new door sit higher than the old one?
Sometimes. A taller threshold or a door set a little higher in the same opening keeps the track out of the puddle on a flat slab. It means a step up from the patio. We show you both ways on the quote, the plain swap and the raised set, and you pick.
How long does a patio door swap take in Little Canada?
Most of a day on site, scheduled as a full-day trip from Zimmerman. The old door stays in until the new one is ready, the opening is open for a few hours, and the door is sealed and locking before the crew leaves.
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 27, 2026 · JMB Builders LLC, MN license BC809005 · All by city pages
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