Medford Window Replacement: Windows, Patio Doors & Glass
Expert residential and commercial window, door and glass services throughout the Bear Creek Valley. Free measure, and the openable square footage written on every quote.
- Construction Contractors Board licensed, bonded and insured under a residential specialty endorsement
- Every quote lists the openable square footage you end up with, room by room
- Jackson, Josephine and northern Douglas County, from Butte Falls to Cave Junction
- Ten-year written installation warranty with a spring re-tune visit built into it
Our Window Services in Medford, OR
Energy-Efficient Windows
The federal climate map files Jackson County as zone 4C, marine. Anyone who has spent a July on Bear Creek knows that label was not written for this valley, where the airport normal high for the month is 91.6 degrees.
Vinyl Replacement Windows
Vinyl is what most of this valley should buy, and we know that is the least profitable sentence on the page. On a 1970s ranch with square openings and no historic obligation, a well-built vinyl unit does what a frame costing three times as much would do.
Fiberglass Windows
Pultruded fiberglass earns its price on one property above all others. Its expansion rate sits very close to that of the glass inside it, and in a valley swinging thirty-three degrees between an August afternoon and the next dawn, that is why a seal survives.
Wood and Clad-Wood Windows
Roughly 3,500 housing units inside Medford city limits were built in 1939 or earlier, and Jacksonville and the older streets off Ashland's plaza add plenty more. On those houses the window is part of the architecture, and a flat white slider in the hole is a visible mistake.
Aluminum Windows
Most aluminum windows in this valley are the problem, not the product. The single-glazed, un-broken aluminum sliders that went into Medford's 1960s and 1970s stock conduct heat straight through the frame, and in January they run wet along the bottom rail every morning.
Double-Hung Windows
Most window companies quietly steer people away from double-hungs. They leak more air than a casement, cost more than a slider, and the sales sheet has nothing flattering to say.
Casement and Awning Windows
A casement seals by compression. Cranking it shut pulls the sash into a continuous gasket at several points rather than sliding it past a brush, and that one mechanical difference is why it tests better for air leakage than any other operable window sold for a house.
Sliding Windows
The largest block of housing in Medford was built between 1970 and 1979, close to 6,700 units, and it is full of one shape: a wide, short opening with a horizontal slider in it. That is probably the window you are asking about.
Bay and Bow Windows
A bay or a bow is a structural project wearing a window's name. It leaves the plane of the wall, carries a seat board and whatever ends up sitting on it, and needs a small roof of its own.
Picture and Architectural Windows
A fixed window has no openable area at all. That is the specification, not a criticism: no sash, no hardware, no gaps, the lowest air leakage and the lowest price per square foot of glass in the catalog.
Egress Windows
There are two different clear-opening numbers in the residential code and they get confused constantly. One is the escape opening, sized so a person can get out and a firefighter in gear can get in.
Impact and Laminated Glass Windows
The main job of this page is to talk you out of a purchase. Oregon has no wind-borne debris region, Medford sits over a hundred miles from open ocean, and no code governing your house asks for an impact-rated window.
Patio and Sliding Glass Doors
A six-foot slider opens three feet. That sentence is the whole design conversation, and it is worth having before you spend on the largest opening in the house.
French Doors
A pair of hinged doors opens all the way. Both leaves swing clear of the frame, so the entire opening becomes free area.
Entry Doors
An entry door does no ventilating work, so it earns its place here for the other half of the year. The sweep, the threshold and the weatherstrip around a front door are one of the largest air paths in a house, and the cheapest to fix.
Window Screens
This is the cheapest useful thing you can buy from us, and on a good many houses it is the only thing you should buy from us this year. Rescreening a whole house costs a small fraction of one replacement window and immediately restores opening area you already own.
Glass and Sealed Unit Replacement
When the haze is between the panes rather than on them, the sealed unit has failed and the frame around it is usually fine. That is a glass job.
Commercial Storefront Glass
Storefront has no openable area whatsoever, so everything this site argues about night ventilation stops at a commercial property line. A shop or an office is ventilated mechanically by code, and the glass line's job is to be tight, safe, durable and to keep working daily for a decade.
Medford Window Replacement is a window and door company covering Medford and the rest of Jackson County: replacement windows, patio doors, front doors, insulated glass units, insect and solar screens, light commercial storefront and same-day board-up. Frames run from vinyl through fiberglass, clad wood and thermally broken aluminum, and each of those can be had as a casement, an awning, a double-hung, a slider, a bay or a fixed lite.
What we do differently is count the opening, not only the glass. The airport's July normals run a 91.6 degree afternoon against a 58.6 degree dawn, which means outside air can cool this house for free on most summer nights, and a replacement window can take that ability away without changing one thing you would notice from the sidewalk.
So every quote we write carries the net free ventilating area you finish with, room by room, alongside the U-factor, the solar heat gain and the air leakage rating. Then we split the house in two: the openings sized as large as possible for the overnight purge, and the openings sealed hardest for the stretches when the valley is holding smoke and nothing opens at all.
What Medford Customers Say
We asked for a quote on eleven windows and got a spreadsheet showing how much actual opening each room would have afterward. Two of the rooms would have ended up worse than they started, which nobody else had mentioned, so we changed the operators on those and kept the budget the same.
Old fir sashes on a house near the park. Instead of selling us a full replacement they reglazed six of them, fitted interior storms, and replaced only the two that were genuinely gone. The work is invisible from the street, which was the entire point, and the rooms hold heat now.
Called about fogged glass in the living room and expected the usual push toward doing the whole house. They replaced the sealed unit, adjusted a patio door that had been dragging for years, and charged a service call. Came back in the spring on their own schedule to re-check the operators.
They installed casements on the west side and double-hungs in the two upstairs bedrooms and explained exactly why the house needed both. Second summer in and the upstairs empties itself by midnight, which it never did before. The permit and the labels were handed over without me asking.
Why Medford Chooses Medford Window Replacement
- ✓Every proposal carries a net free ventilating area figure for each room, after the screen, because that is the number a replacement window quietly takes away and nobody else prints it.
- ✓We specify two ways in one house: the openings you want largest for the overnight purge, and the openings you want tightest for the weeks the valley is full of smoke.
- ✓We count the residential code's openable fraction before we change any operator, since swapping a slider for a fixed unit with a flanker can put a bedroom under it without touching the glass area.
- ✓Solar control is chosen wall by wall against the afternoon, so the elevation looking at Roxy Ann gets a different coating from the shaded north side of the same house.
- ✓Rescreening is quoted as a standalone job with no window attached, because on a great many houses here it is the cheapest square footage of opening anyone can sell you.
- ✓We say plainly that no window and no screen filters wildfire smoke, and we will tell you where the money should go instead even though none of it is on our price list.
About Medford Window Replacement in Medford, OR
Medford Window Replacement is a window and door contractor working out of Medford and covering Jackson County, Josephine County and the northern end of Douglas. We handle window replacement, patio and entry doors, insulated glass, rescreening and light storefront glazing, on houses running from 1890s stock off East Main to tract building in Central Point and the accessory units going up all over town.
The thing that shapes how we specify is that this valley cools itself. A July afternoon here averages 91.6 degrees and the same night averages 58.6, so for most of the summer the cheapest air conditioning available is an open window at nine o'clock.
Then Oregon DEQ counted 143 days at unhealthy-for-sensitive-groups or worse in Medford between 2013 and 2025, and on those days none of it works. One set of windows has to do both jobs, and we quote them that way.
When not to hire us: if your existing units are double-glazed, still lock, still slide and are not fogged, replacing them is a poor use of your money and we will say so at the measure. Attic insulation, duct sealing, a fresh set of screens and a filter for the furnace fan will do more for your comfort in this valley for a fraction of the price, and none of that is work we sell.
How It Works
- 1
Measure the opening, not the window
We measure the daylight opening, the rough opening and the existing clear opening in every room on the list, then calculate what each candidate operator would leave you. That number goes on the proposal before any product is named, because it is the constraint that rules out half the options.
- 2
Split the house into purge and seal
We walk the elevations with you and decide which rooms are the ones you will open at nine at night in August, and which are the ones that need to hold tight when the air is bad. Those two lists get different operators, different hardware and sometimes different frame materials.
- 3
Order to a template and confirm on arrival
Sizes go to the manufacturer with the coating, the spacer, the grille pattern and the hardware finish attached, and nothing is scheduled until the units are here and inspected against that list. Shapes and storefront glass are templated on site, twice, because they cannot be trimmed to fit.
- 4
Install, flash, tune and come back in spring
Sloped pan and end dams under the unit, flanges lapped into the weather barrier, low-expansion foam packed by hand, hardware adjusted and every sash operated with you standing there. We book a return visit for the following spring to re-tune the operators after a full temperature cycle.
Storefront, Office and Tenant Improvement Glass
We glaze small commercial work across the Rogue Valley: suite fronts in strip centers off Crater Lake Highway, converted houses operating as offices on Riverside, clinics, tasting rooms and shops around downtown Medford.
That means aluminum storefront framing, one-inch insulated units, tempered glass everywhere a body can reach, door closers and continuous hinges, thresholds that stay flat, and same-day board-up when a front gets broken overnight.
Oregon's Construction Contractors Board draws a line between residential and commercial endorsements, and we will tell you plainly which side of it your building sits on before we quote anything.
- ✓Aluminum storefront framing, thermally broken on anything conditioned, so the line does not run wet along the sill every January morning
- ✓One-inch insulated sealed units and tempered glass in every hazardous location the code identifies near doors, corners and low sills
- ✓Door closers sized to the leaf weight with backcheck set for vestibule pressure, plus continuous geared hinges on high-cycle entrances
- ✓Thresholds kept flat and compliant rather than allowed to become a lip somebody catches a toe on halfway through a lease
- ✓Same-day board-up after a break-in so the space keeps trading while the tempered replacement is ordered and made
- ✓Honest scoping on a tenant improvement: closers, sweeps and failed sealed units first, and the frame line left alone when it is straight
- ✓Entry sealing for smoke season, since a shop's problem is the door pair cycling all day rather than anything to do with the glass
- ✓Clear statement of which CCB endorsement covers your building, because a residential endorsement stops at small commercial structures
Service Areas
Medford Window Replacement serves Medford, OR and surrounding communities including:
Recent Projects Across the Bear Creek Valley
Frequently Asked Questions
What is net free ventilating area and why is it on my quote?
It is the square footage of actual open hole you get when the sash is all the way open, after the frame and the insect mesh have taken their share. A casement gives you close to the whole daylight opening; a slider or a hung window gives you roughly half.
Since Medford cools itself overnight for most of the summer, that figure decides whether a room can dump the day's heat by itself, and it is not the same as the glass area on the sticker.
Will new windows keep wildfire smoke out of my house?
They help and they do not solve it. A tighter window reduces how fast outside air gets in around the sash, which is real, and a compression-sealed casement does that better than a worn slider.
But fine particulate comes in through every gap in the building, and the effective answer is a sealed house plus a good filter on the furnace fan and a portable unit in the bedroom. We will tell you that on the visit, and we do not sell any of it.
Do I need a permit to replace windows in Medford?
Usually yes for a like-for-like replacement, and definitely if the opening size changes, if you are cutting a new opening, or if the room is a sleeping room. Whether the review sits with Medford, with Central Point, with Jackson County or with somewhere else is decided by where the house stands, and we settle that question before quoting rather than after. Filing is ours, not yours.
Is my house likely to have lead paint?
If it was built before 1978, assume so until it has been tested. Roughly 3,500 housing units inside the city were built in 1939 or earlier and thousands more went up between then and the late seventies.
Cutting a painted sash out of an opening is one of the dustiest operations in residential work, so those jobs run with plastic containment, a HEPA vacuum and a verified cleanup, and that is quoted as part of the work rather than added later.
Should I repair what I have instead of replacing it?
Often, and we would rather tell you at the measure than after the deposit. Haze between the panes with a square, sound frame around it is glass work and nothing else. A dragging patio door is usually rollers. A sash that has been painted shut has lost you opening area without losing any glass, and freeing it costs a service call. We quote the smaller job first when the smaller job is the right one.
Is triple glazing worth it in southern Oregon?
On most houses here, no. Jackson County sits in climate zone 4C, the heating load is moderate rather than severe, and the third lite returns very little against its price. It also adds weight to a sash you intend to open on summer evenings for twenty years. There are exceptions uphill toward Ashland or out at Butte Falls elevation, and a room with a serious noise problem is better served by laminated glass than by a third pane.