How Window Replacement Works in Bellevue, WA

Step 1: The Inquiry

You tell us about the job: how many windows, house or condo, the frame material you lean toward and your timing. A ZIP code and a phone number are enough to begin.

We take your call or your form, answer general questions and arrange a survey and a written, no-obligation quote with a local installer. Inquiries that arrive outside business hours get a call back the next business day.

Step 2: The Survey

A local installer comes to the house or condo, looks at the windows, and measures each opening. A good survey notes more than sizes. Ask the installer to look at:

• the condition of the sills and framing, and any soft wood or moisture
• which windows are in bedrooms, since egress can matter there
• whether any opening will change in size or position

Step 3: The Written Quote

You should receive a written quote, not just a spoken total. Ask that it list, line by line:

• the number and size of windows, the frame material and the glass package
• the type of replacement, insert or full-frame
• trim, labor, disposal and any permit handling
• the payment schedule and the deposit
• what happens if rot or damage turns up behind the old window

You are under no obligation to accept the quote. Comparing quotes line by line shows what is actually offered; the cost guide, window replacement cost, explains how to read one.

Insert Versus Full-Frame Replacement

This choice affects the price, the look and the amount of work, so it should be stated on the quote.

Insert replacement: The new window is fitted inside the existing frame. The old sash and glass come out, the frame stays, and the new unit goes in and is sealed. It is usually quicker, it disturbs the walls and trim less, and the existing frame must be sound. Because the new unit sits inside the old frame, the visible glass area can be slightly smaller.

Full-frame replacement: The whole window comes out, frame included, down to the rough opening. A new frame is set, flashed and sealed into the wall. It takes longer and involves more trim and exterior work, but it allows the framing and sill to be inspected and repaired, and the new window can be a different size.

When each fits: insert often suits a square, dry frame with no rot. Full-frame often suits moisture damage, a window out of square, or an opening being changed.

Moisture is why this matters in the Pacific Northwest: an insert over a wet frame can hide a problem that continues behind the new window. Ask the installer why they recommend one type, in writing.

Changing the size of an opening is a different matter from either type. See the permit question below, and compare materials on vinyl windows, fiberglass windows and wood and clad windows.

Step 4: The Permit Question

In Bellevue, replacing a window with one of the same size and no structural change is generally exempt; changing the opening needs a permit. Confirm with Bellevue Development Services before work starts.

Two related points:

• Egress: In an existing bedroom, a replacement window generally has to keep the same size and type, and a larger opening can bring the egress requirements into play. Check your jurisdiction.
• Energy code: Replacement windows must meet the energy-code limit the city has adopted. Ask for the NFRC U-factor and for the limit your permit office applies.

Other Eastside cities run their own permit offices, so ask yours. In a condo or association community, check your CC&Rs and architectural review before ordering. See permits and HOA rules.

General information, not advice.

Step 5: Ordering and Lead Time

Replacement windows are normally made to your measurements after the quote is accepted. Lead time varies with the material, glass package and size, so ask for it in writing, and ask what happens if the order is late or wrong.

Ask what happens to your deposit if the job is cancelled before anything is made, and get the answer on paper.

Step 6: Installation Day

On the day, the installer removes the old windows, prepares the opening, sets the new window, seals and insulates around it, and fits the trim. A few things are worth settling beforehand:

• which rooms need to be cleared, and how floors and furniture are protected
• who hauls away the old windows and debris
• how long each opening stays exposed to the weather

Ask how long the job should take and what happens if the weather turns.

Step 7: The Final Walkthrough

Before final payment, open and close every sash, check the locks, and look at the seals, trim and finish. Ask for the written warranty terms, who honors them, and any permit sign-off.

Keep a copy of the quote and contract, and photograph the NFRC label before the sticker is peeled off.

Repair or Replace

Fogged glass, a failed seal or a stiff lock may mean repairing a part. Rot in the frame, water past the sill, or a window that will not close points toward replacement. See is it worth replacing.

What to Ask Before Signing

Take this list to every quote conversation:

• What exactly is included, and is it all written down?
• Is the job insert or full-frame, and why?
• What are the frame, the glass package and the NFRC U-factor?
• Who applies for any permit?
• What is the lead time, and what if it slips?
• How large is the deposit, and when is each payment due?
• What written warranty terms apply, and who honors them?
• What happens if rot or damage turns up when the old window comes out?

Pressure to sign on the spot is a reason to slow down. For a fuller checklist, read how to choose.

Related Pages

Read window replacement cost for what moves the price, patio doors for doors, or get a quote to start. Local pages include Kirkland and Crossroads; see all service areas lists the rest.