Elgin Window Pros provides professional double-hung windows in Elgin, IL for residential and commercial properties across the Fox River valley in Kane County. In a house here built before about 1940, the important part of a double-hung is not the window. It is the pair of boxed cavities flanking it that once held the counterweights, and what you do about them decides whether the job actually works.
The original arrangement was a sash cord passing over a pulley to an iron counterweight concealed in the jamb, one per side. That pocket is a vertical void two or three inches wide running the full height of the opening, and in a balloon-framed wall it is usually open to the stud bay behind. Pull an interior stop off and you can usually see straight into it with a flashlight.
So there is a chimney beside every window in the house. Air enters low, warms, rises through the cavity and leaves near the top plate. You can install the finest window ever built and change remarkably little, because the leak is beside the window rather than through it. A blower door will read it as a leak somewhere in the middle of the wall, which is exactly what it is.
A pocket install covers that void and leaves it hollow. Often that is acceptable and we say so plainly, since the new frame seals the opening itself and the cavity is no longer connected to your room through a rattling sash channel. It is still not the same as fixing it. We say plainly which of the two you are buying rather than letting the word replacement carry both meanings.
A full replacement lets us open the pocket, pull the weights and pulleys out, and fill the void properly. When we do, we hand-pack mineral wool or dense cellulose instead of gunning closed-cell foam in. Foam expands hard against a hundred-year-old jamb and will bow the very frame you are trying to keep straight. Mineral wool also has the advantage of being reversible, which matters on a house somebody will work on again in thirty years.
Across the newer half of the city that question simply does not arise. Anything from the 1970s onward runs spiral or block-and-tackle balances inside a jamb liner, and the failure there is a worn balance or a fogged glass unit rather than a wall cavity. Those are cheap fixes and we bill those as repairs instead of using them as the argument for replacing a window that still works.
That is why we ask what year a house went up before quoting a double-hung, and why two openings that look identical on opposite sides of town come back with genuinely different numbers. It is not a pricing trick. It is a different job behind the trim. Anybody quoting a whole house at one number per opening has not asked the question.
Whichever version you end up buying, we want both sashes tilting in for cleaning, continuous weatherstrip at the meeting rail, and a lock that draws the two sashes together rather than merely holding them in position. Sash locks are a security item as well as a seal item, and the cam style that draws the rails together does both jobs at once.
Our licensed and insured team brings the right materials and equipment to every job — pan flashing carried a full six inches up both jamb legs, hand-packed mineral wool filling an emptied sash-weight pocket, brickmould and exterior casing left undisturbed on a pocket install, an NFRC label left adhered to the glass and faced outward for final, backer rod bedded behind a tooled sealant joint at the exterior reveal, compression-seal casement hardware bearing on a continuous jamb gasket — and backs the work with a written workmanship warranty. We serve Elgin and nearby communities including South Elgin, St. Charles, Geneva, Batavia.
What We Handle
Everything our double-hung windows in Elgin covers
One crew, one point of contact, and the full range of double-hung windows work in Elgin, IL. If it is on this list we do it in house rather than handing it to a subcontractor:
- double hung windows
- sash weight pocket
- counterweight windows
- tilt in double hung
- double hung replacement
- sash cord repair
- window balance repair
- old double hung windows
- balloon frame windows
- meeting rail weatherstrip
- double hung cost
- single hung windows
- spiral balance windows
- double hung install
- pulley pocket insulation
- double hung quote
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Elgin services.
Materials, equipment and how we do double-hung windows
The difference between double-hung windows that lasts and double-hung windows that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with pan flashing carried a full six inches up both jamb legs, hand-packed mineral wool filling an emptied sash-weight pocket, brickmould and exterior casing left undisturbed on a pocket install, an NFRC label left adhered to the glass and faced outward for final, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Elgin job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. Years of window work in the Fox River valley in Kane County means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do double-hung windows outside Elgin
Elgin Window Pros covers Elgin and the surrounding communities of the Fox River valley in Kane County. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Double-Hung Windows in South Elgin, IL — Kane County, population 23,865
- Double-Hung Windows in St. Charles, IL — Kane County, part in DuPage County, population 33,081
- Double-Hung Windows in Geneva, IL — Kane County, population 21,393
- Double-Hung Windows in Batavia, IL — Kane County, population 26,098
- Double-Hung Windows in Carpentersville, IL — Kane County, population 37,983
- Double-Hung Windows in West Dundee, IL — Kane County, population 7,686
Start on the Elgin Window Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Elgin Chooses Elgin Window Pros
- ✓Every opening on our quote is marked insert or full replacement before you sign, because that one word decides the flashing, the permit route and roughly a third of the price.
- ✓Where a full replacement is going in, the pan flashing is a priced line item you can point at, not a detail buried behind trim that nobody ever checks.
- ✓We pull the permit and book the final ourselves, and we leave every label stuck to the glass and turned outward so the inspector can read it from the sidewalk.
- ✓We ask what year the house was built before we price a single window, because a boxed weight pocket and a modern jamb liner are two entirely different jobs.
The standards behind double-hung windows
Quality here is not a matter of opinion — it is written down. The double-hung windows work we do in Elgin follows published industry standards: NFRC sets the U-factor and SHGC ratings on every window label, and ENERGY STAR defines the efficiency thresholds by climate zone. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every double-hung windows project in Elgin gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free double-hung windows free estimate in Elgin, or request a quote and we'll get right back to you.