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The big job

Whole House Window Replacement in the Lehigh Valley: How the Quote Works

Whole house window replacement in the Lehigh Valley is a fifteen-to-thirty-window job, and it is the one homeowners most want a clear process for. Here is how it goes: one vetted local installer walks every room with you, measures each opening, and writes a quote with one line per window. You can phase it or do it all at once. The install takes one to three days. This page covers each stage, what your kind of house usually involves, and the mistakes that make a big job harder than it needs to be.

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The six stages of a whole house window replacement

  1. The walkthrough and measure

    Visit day, 60 to 120 minutes

    The installer walks every room with you, lists each opening by location, measures it, and checks the sill and frame. On a whole-house job this is also where style decisions get made per opening: casement over the sink, picture in the living room, double-hung in the bedrooms. Bring your list of problems and preferences.

  2. The written quote, opening by opening

    At the visit or within a few days

    Each opening on its own line with style, material, series, glass ratings, and installation method, plus the finish, disposal, permit, and warranty lines that cover the whole job. A whole-house quote is long. That is the point: you can see every decision and change any of them.

  3. Phasing, if you want it

    Before you sign

    Any itemized quote can be split: the worst windows this year, the rest next year, or one floor at a time. Ask the installer to show the job both ways so you can see what changes. Doing it all at once means one crew visit, matching frames across the house, and a single warranty start date.

  4. The order and lead time

    After signing, four to twelve weeks

    Windows are built to order. Standard vinyl lines run shortest; fiberglass, composite, wood-clad, and custom colors or shapes run longer. The quote should state the expected lead time and the installer confirms the install date when the units land.

  5. Install day (or days)

    One to three days for most homes

    A two-person crew sets eight to fifteen inserts a day; full-frame openings take longer. The crew works room by room so no opening is left open overnight. Expect noise, some dust, and a dumpster or trailer at the curb. Clear a path to every window and take down curtains and blinds the night before.

  6. Walkthrough and paperwork

    End of the last day

    Walk every window with the lead installer: open, close, lock, tilt, check the caulk lines and interior trim. Collect the warranty documents, the NFRC labels or spec sheets, and any permit sign-off. Then tell us how it went.

What a whole house job looks like by Lehigh Valley house type

The houseTypical countWhat to expect
Pre-1940 twin or row (Allentown, Bethlehem, Easton)12 to 20 openingsTall double-hungs, several out of square, some full-frame where sills have gone soft. Lead-safe practices typically apply. Historic review possible on designated blocks.
1950s to 1970s ranch or split-level (Whitehall, Palmer, Salisbury)10 to 16 openingsStandard sizes, often a wide picture-and-flanker unit in front and aluminum sliders in back. Mostly inserts; check every sill.
1980s to 2000s colonial (Forks, Upper and Lower Macungie, Coopersburg)18 to 30 openingsBuilder-grade double-hungs with failing seals, matching sizes, sound frames. Inserts throughout; HOA color rules possible.
Slate Belt or rural Victorian (Bangor, Pen Argyl, Slatington)14 to 24 openingsMixed sizes, tall rear elevations needing lift equipment, wind exposure that makes the air-leakage rating worth reading.

Whole house window replacement mistakes

Getting the spec right across twenty openings

On a whole-house quote the glass package, frame material, color, hardware finish, screen type, and grid pattern should be consistent unless you choose otherwise, and each should be written once and applied to every line. Ask for the U-factor and SHGC per glass package (the installer may recommend different glass on the west elevation), the series name, and both warranties. The energy efficiency guide decodes the ratings and the material guide covers the frame choice. Then run the finished document through the twelve line items before you sign.

FAQ

Whole house questions

How long does whole house window replacement take?

From the measuring visit to finished install, usually six to fourteen weeks, most of it manufacturing lead time. The install itself is one to three days for a typical Lehigh Valley home: a crew sets eight to fifteen inserts a day, and full-frame openings take longer.

Do I have to replace every window at once?

No. Any itemized quote can be phased by floor, by elevation, or by condition. Doing it all at once means one crew visit, matching frames across the house, and one warranty start date; phasing spreads the disruption. The installer will show the quote both ways if you ask.

Should every window be the same style and material?

Same material and color, usually yes, so the house reads as one from the street. Same style, not necessarily: casements over counters, a picture unit where the view matters, awnings in baths, hoppers in the basement. The measuring visit is where the per-room recommendation happens.

How disruptive is a whole house install?

Noise, some dust, and a crew in every room for a day or three. Good crews work one opening at a time, protect floors, and leave no window open overnight. Take down window treatments in advance, move furniture a few feet from each window, and plan to be home or reachable.

Do I need a permit for whole house window replacement in the Lehigh Valley?

Most Lehigh Valley municipalities treat like-for-like insert replacement as routine; full-frame work or a change in opening size may need a permit in some, and homes in a locally designated historic district (Allentown, Bethlehem, and Easton all have them) may need exterior review. The installer who quotes your home confirms with the borough or township office before work starts and states it on the quote.

What if the crew finds rot on install day?

It happens, most often at kitchen and bath sills. The quote should say in advance how a hidden-condition finding is handled: the installer shows you the damage, describes the repair, and gets your approval before proceeding. Ask for that clause in writing.

Related

One installer, one written whole-house quote

Enter your ZIP. One vetted local installer measures your openings and writes the quote. Nobody else gets your number.

  • Free
  • Written quote
  • Measured in person
  • One local company
  • No pressure

Free • Written quote • Exactly one local company sees this

Prefer to pick a time? Book the free measuring visit →

60-second form • Written quote • One local company