Patio Door Replacement in Columbia Heights, MN
The slider on the back of your Columbia Heights rambler was somebody's 1978 project, and it shows in the floor.
Reply within one business day. Or call / text 763-250-3621.
Patio door replacement in Columbia Heights MN is usually a slider somebody cut into a 1950s–60s rambler decades after it was built, now dragging over a soft floor, or a rambler that wants a patio door where the kitchen window is. JMB Builders checks the header and sill, orders the door, sets it in a sill pan with flashing and trims it. 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
- Header and subfloor checked on every cut-in slider
- Window-to-patio-door conversions quoted
Postwar ramblers in Columbia Heights were built with a back door and a kitchen window, not a patio door. The sliders we see were added later, often in the 1970s or 80s, by cutting a window down to the floor and setting an aluminum slider in the hole. The header over it is sometimes a doubled 2x6 that was never sized for the span, the sill was rarely flashed, and forty years of melt water has gone into the subfloor. The 1920s–40s bungalows on the older blocks almost never have one at all.
Replacing a cut-in slider starts with looking at what the last person left. When the old door is out we check the header, the subfloor and the rim joist. Soft wood is replaced and an undersized header is called out with a photo and quoted before we go on. Then a sill pan goes down, flashing tape laps the sides and head, and the new frame is set level and square before foam and sealant. The rollers, lock and screen are adjusted so the panel glides and pulls tight.
Putting a patio door where there is only a window is the same job plus the framing: the opening is cut to the floor and widened, a header sized for the span goes in (when the wall is bearing, a header that size is sized by an engineer), and the stucco or siding is patched back to the new trim. Options such as MI Windows, ProVia or Therma-Tru come through ABC Supply. 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 French door, frame material, color and glass
- Which panel slides, or let us suggest from the yard and the room
- Photos of the door or window inside and out, the sill up close, and the patio or steps outside it
What JMB supplies
- In-person measure and the door order, with options such as MI Windows, ProVia or Therma-Tru
- Old door or window and trim removed and hauled away
- Header, subfloor and rim checked; soft wood replaced and an undersized header quoted before we go on
- A new opening cut and framed where a window becomes a patio door, as its own line
- Sill pan, flashing tape, low-expansion foam and exterior sealant
- Frame set level and square; rollers, lock and screen adjusted
- Interior casing and exterior trim or stucco patch to suit the wall, 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:
- Same-size swap vs. a window opening cut down and widened
- 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
- An undersized header from the original cut-in, if found
- Stucco or brick at the opening vs. lap siding
- Painting of new casing, quoted as a separate line
Send a photo of the door or window from outside showing the wall above it, one from inside, and a close-up of the sill. Say if the wall is stucco.
How long it takes
A same-size swap: most of a day on site. Header or subfloor work adds time and is quoted first. A window-to-door conversion is usually two days once the door is here. Start date is set by the door order.
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, same-size swap
The usual replacement for a cut-in aluminum slider. Low-E glass, an adjustable lock, a stiff frame, white or a color to match the windows.
Window-to-patio-door conversion
The kitchen or dining window opening cut to the floor and widened, a sized header, and a new slider set on a pan. Framing and the stucco or siding patch are their own lines.
French patio doors
A hinged pair that seals by compression. On a rambler the question is swing room: inside across the dining area, or outside onto the patio.
Patio Door Replacement in Columbia Heights, MN: questions, answered
The slider on my rambler was added by a previous owner. Does that matter?
It matters for what we check. Cut-in sliders from the 1970s and 80s often have a header that was never sized for the span and a sill that was never flashed. When the old door is out we look at both, replace soft wood, and call out an undersized header with a photo and a quote before going on. The new door goes in on a pan either way.
Can you put a patio door in my Columbia Heights rambler where the kitchen window is?
Usually, yes. The window opening is cut to the floor and widened, a header sized for the span goes in, and the new door is set on a sill pan. When the wall is bearing, the header is sized by an engineer. We look at the wall at the measure and tell you what it takes before anything is ordered.
How do you handle a patio door in a stucco wall?
On a same-size swap the stucco is not cut; the old frame comes out from inside and the new brickmould is sealed to the stucco edge. On a new or widened opening the stucco is cut back and patched to the new trim, which is its own line on the quote.
Do I need a permit to replace a patio door in Columbia Heights?
The City of Columbia Heights building department sets that rule, and cutting a new or wider opening is the usual thing that changes the answer. We check for your address before the order goes in and pull a permit when one is required.
Why is the floor in front of my patio door soft?
The old slider was set without a sill pan, and melt water off the track has been going into the subfloor for decades. We open it up when the old door is out, replace the soft subfloor and any rim framing, and set the new door on a pan so it stops. It is quoted as its own line once we see it.
Can the patio door go in with new windows?
Yes. It is measured at the same visit, ordered through ABC Supply in a matching color, and installed during the same job. It is listed as its own line on the quote so you can take it now or later.
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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