Sliding glass doors
Single hung
Double hung
Horizontal roller
Casement
Bay & bow
Entry doors
Impact garage doors
PGT
CGIFree in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Get your free estimateMr-Glass Window Installation: The Santa Clarita Owner’s Guide
Mr-Glass window installation in Santa Clarita typically runs between $350 and $900 per opening, depending on the series, glass package, and whether the existing frame needs repair before the new unit goes in. Most replacements we handle are finished the same day once parts are confirmed, and we keep common Mr-Glass hardware and weatherstripping on the truck. The way most Santa Clarita homeowners discover they need this is simple: a window that used to glide now sticks, a room that used to stay quiet now carries freeway noise, or a frame that used to be square now lets a visible sliver of daylight through the corner.
We’re an independent Cedarwell windows-and-doors company serving Santa Clarita and nearby areas, and we install and service Mr-Glass products alongside seven other manufacturer brands. We’re not affiliated with Mr-Glass directly, which matters because it means our recommendation is based on what your home actually needs, not what a single vendor wants to sell you.
Which Mr-Glass Models This Applies To
Mr-Glass builds windows across three main categories we regularly see in Santa Clarita homes: single-hung and double-hung units, horizontal sliders, and fixed picture windows. The model code is usually printed on a small aluminum sticker on the frame’s edge, visible when you open the sash and look along the track. If the sticker has faded (and sun exposure in Santa Clarita does that faster than most places in California), we can identify the series by measuring the glass thickness, the frame profile width, and the balance mechanism style.
One gotcha worth knowing: Mr-Glass changed its balance shoe design on double-hung units around 2016, and the older shoes don’t interchange with newer frames even when the dimensions look close. If your home was built before that window, you may need a small conversion kit rather than a direct swap. That’s a detail we check on-site before quoting, because getting it wrong means a window that won’t stay up, no matter how carefully it’s installed.
On the OEM-versus-aftermarket question for Mr-Glass specifically: we use genuine Mr-Glass parts whenever they’re available, because the factory balances and locks are matched to the frame tolerances. For weatherstripping and glazing bead, quality aftermarket equivalents from a couple of suppliers we’ve worked with for years perform just as well and often cost 20 to 30 percent less. We’ll tell you which is which and why, in writing, before any work starts. We also stock installation hardware for PGT, CGI, and CWS when a mixed-brand home needs attention.
Styles & brands we work with










Signs Your Mr-Glass Window Installation Is Failing
- The sash drags or binds when you open it. This usually means the balance mechanism has lost tension or the frame has shifted slightly out of square. In Santa Clarita’s dry summers, vinyl frames expand and contract less than wood, but a settled foundation or an old rough opening can still pinch a track.
- You hear Santa Clarita wind or road noise even with the window closed. Worn weatherstripping or a failed glazing seal lets air pass around the sash. Over time, dust follows the same path, which is why the sill often looks dirty even in a closed room.
- Condensation or haze between the glass panes. This is a failed insulated glass unit, or IGU. The desiccant inside the spacer has saturated, and the argon or krypton fill has escaped. No cleaning will remove it because the moisture is inside the sealed unit.
- The window won’t lock, or the lock feels loose. A lock that no longer engages means the sash and frame are misaligned, often from a worn cam or keeper. A window that can’t lock is a real security issue, not a minor annoyance. We treat that as a priority repair in Santa Clarita homes where ground-floor windows are common.
- Drafts you can feel within a foot of the glass on cold mornings. Santa Clarita nights drop fast after sunset, and a failed seal or compressed weatherstripping becomes obvious when the temperature swings. If you can feel air moving near the frame, the installation is no longer doing its job.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
Our installed pricing for Mr-Glass window work in Santa Clarita breaks down like this:
- Hardware-only repair (locks, balances, weatherstripping): $120 to $260 per window, depending on the part.
- Glass-only replacement (new IGU in the existing frame): $300 to $550 per window for most sizes.
- Full window replacement (new Mr-Glass unit, frame and all): $350 to $900 per opening, with larger picture windows and impact-rated glass at the top of that range.
- Installation adjustments (squaring a frame, re-bedding a sill, correcting a previous install): $150 to $400, quoted after we see the opening.
Every price includes the part, the labor, the cleanup, and a written line-item quote before we begin. The 365-Day Done Right Promise covers every replacement we install: if the finished work isn’t right, we make it right, no debate and no countdown. The only variable that changes a quote mid-job is if we discover hidden frame damage behind the old window, and you’ll approve that cost in writing before we touch it.
DIY or Call Us?
There are a few things any Santa Clarita homeowner can safely check before calling: look for the model sticker on the frame edge, note whether the problem is on the glass or the hardware, and check if the window is square by measuring diagonally from corner to corner. These notes help us quote faster.
What we don’t recommend attempting yourself is anything involving the balance mechanism or a full sash removal. A Mr-Glass balance assembly holds real tension, and when it releases unexpectedly, it can take a chunk of frame or a finger with it. The same goes for removing a large insulated glass unit; the weight of a patio-door-sized panel can exceed what one person can control safely. If the window is heavy, stuck, or under tension, that’s a call to us at (661) 430-5327. The estimate is free, and we’ll tell you what’s actually wrong before we suggest spending anything.
FAQs
A properly installed Mr-Glass window in Santa Clarita should give you 20 to 30 years of service, with the glass seal being the most likely thing to fail first, usually between years 12 and 18. Our climate accelerates that timeline slightly because the summer heat and intense UV exposure stress the sealant bond more than coastal air does. If the frame itself is still square and the tracks are clean, a glass-only replacement can extend the useful life another decade or more. Call (661) 430-5327 and we’ll inspect yours and tell you honestly whether it’s a repair or a replacement.
It depends on what failed. Hardware like locks, balances, and weatherstripping can almost always be replaced without touching the glass. If the insulated glass unit itself has fogged or lost its fill, the IGU needs replacement, though the frame can usually be saved. We’ll always quote the least expensive fix that solves the actual problem, and we’ll explain the price before any work starts. Call (661) 430-5327 for a free estimate on your specific window.
Most single-window replacements in Santa Clarita take two to four hours from setup to cleanup. A full-frame replacement with sill repair can run five to six hours. We schedule in a way that respects quiet hours if you have kids napping, and you’ll know the timeline before we start.
We keep common Mr-Glass hardware, weatherstripping, and glazing bead on our trucks for same-visit repairs in Santa Clarita. For less common series or custom-sized IGUs, we order directly and typically have the part within three to five business days. You’ll know before we leave which category your window falls into, and you’ll have a written price for the work.
If your Mr-Glass window isn’t working the way it should, call (661) 430-5327 and tell us what you’re seeing. We’ll talk through the symptoms, give you a straight answer about what it will cost, and schedule a time that works for your family. A light well is what brings daylight deep into a building, and that’s what a well-installed window should do for your home. Let the light in, and keep everything else where it belongs.
Written by Keith Yamada, Owner, Lightwell Windows Santa Clarita at Lightwell Windows Santa Clarita, serving Santa Clarita and nearby areas.
Six Reasons Homeowners Choose Lightwell Windows Santa Clarita
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.