Patio Door Replacement in Maplewood, MN
The concrete patio behind your Maplewood rambler has lifted until it is nearly level with the door track, and every spring a puddle, then ice, sits against the threshold.
Reply within one business day. Or call / text 763-250-3621.
Patio door replacement in Maplewood MN is often a 1950s–70s rambler slider onto a concrete patio poured against the house, where the slab has heaved so water and ice sit against the threshold. JMB Builders measures the opening and the slab, orders the door you pick, repairs the sill and sets the new door so its threshold clears the concrete. 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
- Threshold set to clear a heaved or high slab
- Sill pan and flashing on every door
Most Maplewood ramblers and split-levels from the 1950s–70s got a patio door off the kitchen or dining room onto a concrete slab poured right against the foundation. Fifty years of frost has moved that slab: it heaves at the house in winter, settles in summer, and often ends up pitched toward the door or sitting within an inch of the track. Rain and meltwater pool against the threshold, freeze there, and get under the sill. The subfloor inside is soft, the rollers drag and the lock barely holds.
The door replacement starts by measuring the slab against the opening. Where the slab is below the threshold with room to spare, the new door goes in on a sill pan at the same height. Where the slab is high, we build the sill up or pick a door with a taller threshold so the new door clears the concrete and water has somewhere to go. The subfloor and rim are checked and soft wood replaced, a sill pan with a back dam goes down, flashing laps the sides and head, and the frame is set level and square before foam and sealant.
A door can be set to survive a bad slab, but a slab that drains toward the house is still a problem for the foundation. We tell you what we see, and if you want it fixed, cutting back or re-pitching the slab is its own line. Maplewood is a scheduled full-day trip from Zimmerman, so a patio door often goes with windows or a front door. 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 from the kitchen and the patio
- Photos of the door inside and out, the threshold and the slab where they meet, and the slab from the yard
What JMB supplies
- In-person measure of the opening and the slab height, and the door order, with options such as MI Windows, ProVia or Therma-Tru
- Removal and haul-away of the old door and trim
- Subfloor and rim repair under the sill as found
- Sill built up or a taller-threshold door where the slab is high
- Sill pan with a back dam, flashing tape, low-expansion foam and exterior sealant
- Frame set level and square; rollers, lock and screen adjusted
- Interior casing and exterior trim, and 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 French door, and the number of panels
- Frame material and glass package
- Rot under the sill or at the rim once the old door is out
- Building the sill up or a taller threshold to clear a high slab
- Cutting back or re-pitching the slab, quoted as a separate line
- Exterior trim against brick, stucco or lap siding
Send a photo of the threshold where it meets the concrete, one of the door from inside, and one of the slab from the yard after a rain if you can. Tell us if the floor inside is soft.
How long it takes
One patio door: most of a day on site in a sound opening. Sill repair or building the sill up adds hours. Lead time depends on the door ordered and 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
The common replacement for a rambler kitchen slider. Pick a line with a stiff frame and an adjustable lock; a taller threshold version helps where the slab sits high.
Fiberglass slider
A stiffer frame for a wider opening or a door facing the weather, in colors that match fiberglass windows on the same order.
French patio door
A hinged pair with a compression seal at the bottom, which sheds standing water better than a sliding track. Needs swing room inside or out on the patio.
Patio Door Replacement in Maplewood, MN: questions, answered
The concrete patio behind my Maplewood house is almost level with the door track. Can you still replace the door?
Yes. We measure the slab against the opening and set the new door so its threshold clears the concrete, by building the sill up, picking a door with a taller threshold, or both. A sill pan with a back dam under it sends any water that reaches the track back outside instead of into the floor.
Why does water pool against my patio door every spring?
The slab was poured against the house and has heaved and settled with fifty winters of frost, so it is now pitched toward the door or sits high enough that there is no drop at the threshold. Melt and rain stop there, freeze, and work under the sill. The door can be set to survive it; the slab is a separate fix.
Do I have to fix the slab before the door goes in?
No. The new door is set on a pan that drains, so the house is protected either way. A slab that drains toward the foundation is still worth fixing for the basement's sake, and we quote cutting it back or re-pitching it as its own line if you want it done, before or after the door.
Do I need a permit to replace a patio door in Maplewood?
The City of Maplewood building department sets that rule. Widening an opening or changing framing is the usual trigger in most cities; a same-size swap is often handled differently. We check for your address and pull a permit when one is required.
Why is the floor soft inside my patio door?
Water that pooled against the threshold got past the track and into the subfloor, and the original door had no sill pan to send it back out. The rot can run into the rim joist. We open the sill, cut out what is soft, replace it and set the new door on a pan so it does not happen again.
Can the patio door go on the same trip as my windows?
Yes. Maplewood is a scheduled full-day trip from Zimmerman, so the door goes on the same order as the windows in a matching color and is installed during the same visit.
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.
Related jobs we do
Whole House Window Replacement in Maplewood, MN
Your Maplewood rambler has three kinds of windows upstairs and little hoppers in the basement bedrooms. You want one order that fixes the main floor and makes those bedrooms legal to sleep in.
Read moreEntry Door Replacement in Maplewood, MN
Your Maplewood rambler has a front door from the 1960s and a side door someone swapped in the 1990s, and neither seals. You want both done at once so they match and the house is tight.
Read moreSliding Patio Door Replacement — Door Supplied, Set in a Pan, Trimmed
The slider drags, the glass fogs, and the floor inside the sill is dark. You pick the new door; we order it to fit, fix what is under the old one and set it so it glides.
Read moreRotted Subfloor Under Patio Door — Floor, Rim and Sill Pan Repaired
The floor is soft in front of the sliding door, the flooring is buckled, or there is a stain on the basement rim below it. The door has been leaking into the floor.
Read moreExterior Door Threshold Replacement — Replace a Rotted Door Sill
The threshold rocks when you step on it, the cap is cracked, the wood under it is black, or the sweep has nothing to seal against. We replace the sill and set it so the door closes tight.
Read moreKitchen Patio Door Replacement — Slider or French Door Off the Kitchen
The patio door in the kitchen is the busiest door in the house from May to October: kids, dog, plates to the grill, and the screen that never stays on its track. The replacement is chosen for that room.
Read morePage reviewed October 27, 2026 · JMB Builders LLC, MN license BC809005 · All by city pages
Where we work
Window & Door Services by City near you
Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: