Replace the Cold North-Side Windows First
The north side gets the wind and no sun. Its windows frost, draft and rot before the rest, and they are the right ones to do first when the whole house is not in the budget this year.
Reply within one business day. Or call / text 763-250-3621.
To replace the cold north-side windows first, JMB Builders measures every window on the north wall, usually three to six, and puts them on one order with glass built for a wall that never sees sun. One side of the house is a normal job for us, priced per opening, mixed styles welcome. Twin Cities metro. Send photos and we reply within one business day, or book a free in-home estimate.
- One side of the house is a normal job, priced per opening
- Every north-wall window on one order
- Better glass where it pays, standard elsewhere
On a Minnesota house the north wall is the cold wall. It faces the winter wind, never gets direct sun to dry out, and its windows are the ones with frost on the inside in January and black at the bottom of the sash in spring. When owners tell us which windows are the worst, they are almost always on this side.
Replacing that side first is a sensible order. Three to six windows on one wall go on one order, go in on one or two days, and the house is noticeably warmer that winter. The rest of the house waits, measured and written down, so the next order matches.
The north wall is also where a better glass package earns its keep. A heat-retaining low-E coating, warm-edge spacers and often a third pane make sense here and are not needed on a south wall that gets sun all day. Casements seal tighter than sliders against wind, but a slider in the bath and casements in the bedrooms can go on the same order. We check the windows you keep at the measure so the color and grilles match from outside.
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
- One photo of each north-wall window from inside, labeled by room
- A photo of the north wall from outside, far enough back to see all the windows
- A photo of a window you are keeping on another wall, for the match
- Furniture pulled back from the north windows the morning of the install
- Paint or stain color for new trim: painting is quoted as a separate line, or leave it primed and caulked and paint it yourself
What JMB supplies
- A line-item quote, each north-wall window priced per opening, with the glass upgrade shown as its own choice
- One in-person measure of the north wall and a match check against the windows you keep
- All north-side windows on one order through our supplier so they match
- Removal, sill pan or flashing tape, shims, low-expansion foam and sealant at each opening
- Interior stops or casing and exterior capping or trim as written on the quote
- Cleanup, haul-away of the old units and photos in your job folder
- Measurements of the remaining walls kept on file for the next order
How it is priced: per opening
Quoted in writing from your photos, with a reply within one business day. What moves the number:
- How many windows are on the north wall and the size of each
- Glass package: standard double-pane low-E, a cold-climate coating, or triple pane
- Style at each opening: casements seal tightest, sliders and double-hungs cost less
- Insert into sound frames or full frame where the north sills are rotted
- Brand, series and frame material
- Second-story windows that need a ladder set or roof brackets
- Interior finish: trim kept, new stops, or new casing in each room
Ask for the glass upgrade priced as its own choice on each line. You can then take it on the bedroom windows and skip it on the garage.
How long it takes
Lead time depends on the line and glass and is written on the quote. Three to six north-wall inserts: one to two working days, every opening closed the day it is opened.
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
Triple pane on the north wall only
The third pane goes where the cold is and nowhere else. The frame color and grilles match the rest of the house, so from outside nothing looks different.
Casements where the wind hits
A casement sash pulls tight against its seal when it latches, so a north bedroom often goes from a drafty double-hung to a casement in the same opening, in the same color as the rest.
North and west together
The west wall takes the late sun and the weather too. Doing both exposed sides as one order, six to nine windows, is a common step before the sunny sides.
Replace the Cold North-Side Windows First: questions, answered
Can I replace only the windows on the north side of my house?
Yes. One side of the house is a normal job for JMB Builders, usually three to six windows on one order, each priced per opening. The windows you keep on the other walls are checked at the measure so the north side matches them. Send photos and we reply within one business day, or book a free in-home estimate.
Why are the north windows always the worst?
They face the winter wind and never get sun. Cold glass pulls moisture out of the room air, so they frost and drip, and the wet sill never dries, so it rots. The south windows on the same house, installed the same day, often look years younger.
Is it worth upgrading the glass only on the north windows?
Often, yes. A cold-climate low-E coating or a third pane keeps the inside of the glass warmer, which cuts frost and the cold draft off the window. On a south wall that gets sun, the standard glass package does the job. Pricing the upgrade per window lets you put it where it pays.
Can different styles go on the north-wall order?
Yes. Mixed styles on one order is normal. Casements in the bedrooms, a slider in the bath and a fixed unit in the stairwell can come from one line in the same frame color, glass and grilles, so the wall reads as one set.
Will the north windows match the rest of the house later?
The brand, series, frame color, glass and grille pattern are written on the quote, and the other walls are measured while we are there. The next order is placed from the same line so it matches. If that line changes before then, we tell you what differs before ordering.
Will new north windows stop the frost?
Most of it. Frost forms when the inside of the glass gets below the dew point of the room air. A new double-pane low-E unit with a warm-edge spacer keeps the glass warmer, and a third pane warmer still. Very high indoor humidity can still frost any window, so a humidifier set high in January works against you.
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
Replace the Back-of-House Windows
The back of the house is where you live: the kitchen, the table, the family room, the view of the yard. Its windows are the biggest, the most used and the ones you look through all day.
Read moreReplace Every Window on One Wall
One side of the house is the problem, or one side is getting new siding, or one side faces the neighbor's floodlight. Whatever the reason, that wall's windows make a clean order on their own.
Read moreReplace the Worst Windows First, the Rest Next Year
The whole house is not in the budget this year, and it does not need to be. The windows letting water in get done now; the ones that are only tired wait, measured and written down.
Read moreReplacement Windows for a Cold North Wall — Where to Spend on Glass
The north bedrooms are the cold ones, the glass there frosts first, and the couch under the north window is nobody's favorite seat in January. The fix is specific to that wall.
Read moreTriple Pane Window Replacement — Heavier Units Set Right
You have decided on triple pane for the cold side of the house, or the whole house, and want it installed by someone who plans for the weight and the depth.
Read moreReplacement Windows That Stop Condensation and Frost — What to Order
Every January morning there is a line of frost along the bottom of the glass and a puddle on the stool. New windows fix it, but only if the right parts of the window are specified.
Read morePage reviewed October 25, 2026 · JMB Builders LLC, MN license BC809005 · All windows pages
Where we work
Window Replacement & Installation near you
Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: