How Long Does Window and Door Replacement Actually Take?
- Jun 18
- 4 min read
When homeowners in the South Chicago Suburbs ask me how long window replacement takes, I give them the honest answer: the installation itself goes fast, but the full process takes some planning. Here's exactly what to expect when you work with us.
The Quick Version
A single window takes our installers 30 to 60 minutes to put in
A skilled crew can complete 10 to 15 windows in a single day
Start to finish, the full project typically runs 4 to 10 weeks, mostly due to manufacturing
We use our own in-house team, never subcontractors, and every consultation is no-pressure
Understanding the Window Replacement Timeline
The part that surprises most people is how much of the timeline happens before we ever show up at your door.
The ordering phase alone accounts for 4 to 12 weeks. Standard sizes move faster, but if you have custom windows, specialty shapes, or need historic replications for an older home, manufacturing simply takes more time. We build in about six weeks as our standard expectation.
Once your windows arrive, installation moves quickly. Here's a general breakdown:
1 to 5 windows: typically done in 3 to 5 hours
6 to 10 windows: usually a single day
20 or more windows: plan for 2 to 3 days, especially in multi-level homes
A few variables can affect that pace. Wood windows take more prep work than vinyl or aluminum. A pocket replacement, where we fit the new window into the existing frame, goes faster than a full-frame installation that involves replacing the frame itself, the brick molding, and dealing with any rot underneath. If we discover water damage or mold around a frame, we're going to take the time to fix it properly rather than seal over a problem. And second-story windows or anything blocked by heavy landscaping takes a bit more staging.
When to Replace: Identifying Your Home's Pain Points
After two decades in this business, I can tell you the signs are usually pretty clear once you know what to look for.
Drafts and whistling around your windows mean air is getting through gaps or a damaged seal. Foggy glass between the panes means the seal has already failed and the insulating gas has escaped. If your energy bills have been creeping up without a clear reason, old leaky windows are often the culprit because your HVAC is working harder to compensate. And if outdoor noise is getting louder inside your home, that's your window's insulation telling you it's done.
Beyond comfort and efficiency, modern replacement windows can last 15 to 30 years and make a real difference in curb appeal and resale value.
Preparing Your Home for Installation Day
A little prep on your end keeps the job moving smoothly and protects your home.
Inside, clear a path near tight corners or hallways our crew will need to navigate. Take down your window treatments, shades, blinds, and curtains, and move furniture and floor lamps away from the work area. Disable any security alarms connected to your windows, and find a comfortable spot for your pets away from the noise and activity.
Outside, move patio furniture, boats, or lawn ornaments so our crew has clean ladder access to every window. If we're bringing a dumpster, we'll coordinate placement ahead of time, and we can put boards underneath to protect your driveway.
The Welsh Windows Plus 6-Step Process
We've built our process around making this as easy as possible for you. Here's how it works from first call to final walkthrough.
Step 1: Initial Reach Out. Call us or fill out our online form whenever you're ready to start the conversation.
Step 2: Scheduling. Jennifer will coordinate a free, no-obligation quote at a time that works for you.
Step 3: The Free Consultation. Bobby or Rob will walk you through your options with on-the-spot pricing and honest product education, including differences between brands like Pella and Alside. No pressure, ever.
Step 4: Custom Measurement. After you sign the contract, we take a second precision measurement before placing your order. Getting this right is what makes the installation clean.
Step 5: Delivery and Setup. Jennifer will call you as soon as your windows arrive at our warehouse so we can get your installation date on the calendar.
Step 6: Expert Installation. Robert or Eric leads the crew on every job. We leave the site completely clean and don't consider the job finished until you've done a final walkthrough with us and you're satisfied.
Frequently Asked Questions
Can windows be replaced in the winter?
Yes, absolutely. Our crews use protective barriers to minimize heat loss and work room by room to keep your home comfortable throughout the process.
Do I need to be home?
It helps to be there at the start and for the final walkthrough, but it's not required if we've arranged access in advance.
Should I replace all my windows at once?
Bulk replacement is more cost-effective per window, but we can also phase the project to fit your budget. We'll talk through what makes sense for your situation.
How do I inspect the finished work?
Before we leave, check that every window operates smoothly, look at the outside sealant for any gaps, and inspect the glass and trim for scratches. We want you to catch anything before we pack up.
Why the South Chicago Suburbs Trust Welsh Windows Plus
We've been serving this area for over 20 years, covering communities like Tinley Park, Oak Lawn, Alsip, and Orland Park. We know the older homes and condos out here, and we know what it takes to get a proper fit in a house that wasn't built yesterday.
We don't use subcontractors. Every job is handled by our own team, the same people who've built this company's reputation over two decades. We're a family-owned business, and we operate the way a family business should, with transparency, real craftsmanship, and no interest in pushing you into something you don't need.
