Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across Covina
If you live in Covina, you already know the houses we’re about to describe, and you may have considered a Home Additions & ADU in Covina: stucco ranches built between the 1940s and 1970s, sitting on slab foundations, with original single-pane aluminum windows that rattle in the wind and stick in the summer. We’re Barrett & Sons Construction, and we’ve spent the better part of three decades replacing those exact windows and doors across 91722, 91723, and 91724. When you call (877) 610-1318, you’ll reach a live person who knows Covina’s housing stock, its clay soil, and the specific ways both of those things misbehave. That matters more than most homeowners realize until the first window comes out.
Why Barrett & Sons Construction Is Covina’s Preferred Windows & Doors Company
Tom Barrett founded this company in 1998, and his sons run the crews. That’s not marketing language; it’s how the job site works. When we replace windows in Covina, the person measuring your openings and the person setting the units both carry the Barrett name. Our customers in Covina know they can reach Tom directly, and his name, address, and license number are published for anyone who wants to verify before signing. That’s the kind of transparency a lot of contractors claim and few actually offer.
We’ve worked in and around Covina long enough to know its specific patterns. East of downtown, in 91722, slab heave from montmorillonite clay regularly throws window and door rough openings out of square. On the west side in 91723 and 91724, we see the same single-pane aluminum frames choked with corrosion from a hundred-plus summers of San Gabriel Valley heat. Our crews don’t need a map to know which Covina neighborhoods have which problems; we’ve already been there. That local knowledge is why our customers recommend us to neighbors on Citrus Avenue, Badillo Street, and the streets around Charter Oak Park.
Calls are answered by a live person 24 hours a day, seven days a week. Not a voicemail box. Not an out-of-state call center. When a Covina homeowner calls about a window that won’t close or a patio door that’s binding, they deserve to talk to someone who knows what they’re dealing with. That’s us.
Our Windows & Doors Services in Covina
We handle the full Windows & Doors scope, but in Covina, a handful of services make up most of what we do. Here’s how those break down.
Window Replacement in Covina
Most Covina homes still have their original single-pane aluminum windows. Those windows were never great, and fifty to seventy years of inland heat plus seasonal clay movement have made them worse. We replace them with modern vinyl or fiberglass units sized to the actual opening, not the opening as it was in 1963. That distinction matters in Covina, where slab heave has often shifted the framing enough that a stock-size window no longer fits square.

Door Installation in Covina
Front doors, back doors, and interior doors all take a beating in Covina’s dry summer heat. Wood doors warp. Slab foundations settle and rack the frame out of square, so a door that latched fine in May binds by October. Our crew checks the rough opening, the header, and the subfloor before hanging any door in Covina. If the opening has moved, we fix the opening first. Hanging a square door in a trapezoid hole doesn’t work, and we won’t pretend otherwise.

Impact Windows & Doors
Covina sits inland, but that doesn’t mean wind-driven debris is a non-issue, especially for homeowners who want the added security and noise reduction that impact-rated glass provides. Impact windows and doors also solve a quieter Covina problem: the afternoon sun blasting through west-facing openings from June through September. Impact glass cuts solar heat gain meaningfully, which matters in a city where summer highs regularly push past 100°F. We install impact units on both original ranch homes and newer construction.

Sliding & Patio Door Replacement
Sliding glass doors on 1950s and 1960s Covina ranches are a frequent failure point. Aluminum tracks corrode, rollers flatten, and the slab heave that plagues 91722 and 91724 gradually pulls the frame out of alignment until the door won’t glide or latch. We replace them with modern multi-point locking sliders, reframing the opening as needed and installing full perimeter flashing so the door doesn’t become a water-intrusion path the first winter it rains.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Covina
We install materials you can look up and verify: Andersen and Marvin windows, and for bathroom and wet-area projects, Schluter and Grohe products. We don’t roll up with mystery brands off a van and hope nobody asks questions. For Covina homeowners, that means you can research the exact unit we’re quoting before you sign. It also means local parts availability is better, so a missing sash or a broken roller doesn’t turn into a six-week wait.
Common Windows & Doors Problems We See in Covina Homes
After years of Covina Kitchen Remodeling and opening up Covina ranch homes, certain problems show up so consistently we can practically schedule for them:
- Corroded single-pane aluminum frames. Covina’s summer heat bakes these frames and the seals fail. Windows fog, sashes stick, and eventually the window won’t open at all. We see this on nearly every original window we pull.
- Out-of-square rough openings from slab heave. Montmorillonite clay expands and contracts with the wet and dry seasons, which racks framing over decades. Windows and doors stop fitting their openings, and forcing them into place just breaks the frame or the wall.
- Missing or failed waterproofing at window perimeters. 1960s construction details didn’t include the flashing and weep systems modern code requires. After wet winters, stucco cracks around the frame and water gets behind the wall. By the time the homeowner sees the brown stain on the interior drywall, the damage is already done.
- Binding entry and patio doors. A door that scrapes the jamb or won’t latch is usually not a hardware problem. In Covina, it’s usually the slab settling and taking the door frame with it. Replacing the door without addressing the frame means the new door will bind within a year or two.
Pricing for Windows & Doors in Covina, CA
Window and door pricing in Covina tracks the scope of the correction, not just the unit itself. A straightforward window replacement where the opening is square and the framing is sound runs $4,500 to $15,000 depending on the number of windows and the brand. Impact window installation runs $8,000 to $25,000 for a full-home retrofit. Custom windows and doors start around $4,500 and go up to $15,000 when the openings require substantial reframing. Here’s the honest part: on Covina’s east side, a meaningful number of projects need reframing because the slab has moved. We price that work as a written line item before we start, not as a surprise before we finish.
| Service | Covina Price Range |
|---|---|
| Window Replacement | $4,500 - $15,000 |
| Impact Window Installation | $8,000 - $25,000 |
| Custom Windows & Doors | $4,500 - $15,000 |
We offer free estimates in Covina, and every estimate is a written line-item quote. No trip charge inside the county. Call (877) 610-1318 and we’ll schedule a time that works for you.
What Our Crews Find Behind the Stucco of Covina’s 1950s-1970s Tract Homes
Here’s what makes Covina different from a coastal LA city where the soil is more stable: the ground under these ranch homes moves. The San Gabriel Valley’s montmorillonite clay expands when the rains come and contracts through the dry season. Over fifty or sixty years, that cycle has racked framing, cracked slabs along diagonal shear lines, and thrown rough openings out of square. On a window replacement in the Charter Oak neighborhood of 91724, our crew pulled a 1963 single-pane aluminum slider and found the rough opening had shifted nearly 3/4 inch out of square from slab heave. We reframed the opening, installed a new load-bearing header, and set a Milgard Tuscany vinyl window with full perimeter flashing, then passed inspection sign-off on the first visit because the permit documented the correction before we closed the wall.
That’s the difference between slapping a new window into a broken opening and actually fixing the problem. In Covina’s 91722 ZIP, east-side slab-on-grade ranch homes frequently have original 1960s foundations that have cracked along those same shear lines, so window and door replacements often require correcting out-of-square rough openings and realigning load-bearing headers before new units can be set. A contractor who doesn’t know Covina’s soil won’t plan for that. A contractor who does will have it in the written scope before the first nail moves.
Every price change on our Covina projects arrives as a written change order before work proceeds. The permit inspector works for you, not for me. An allowance that isn’t on paper is a surprise waiting for a date. We don’t run surprises.
We Also Serve Cities Near Covina
In addition to Covina, our crews regularly work in Vincent, Charter Oak, Azusa, and Citrus. If you live in one of those communities and you are considering window or door work, the same pricing ranges and the same written-scope process apply. Call (877) 610-1318 and we’ll schedule your Windows & Doors in Covina estimate the same way we do for every neighbor in the area.
Serving Covina, CA - Our Local Coverage Area
We’re based in the Covina area and know this community well, whether it’s Covina Driveway & Pavers or window work. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Windows & Doors in Covina
Because the montmorillonite clay under those east-side slab foundations expands and contracts seasonally, and after fifty-plus years, that movement has racked many rough openings out of square. A new window can’t seal properly in a skewed frame. Call (877) 610-1318 and our crew will confirm what your specific openings look like during the free estimate.
Yes, in most cases it does, and that’s a good thing. Permits ensure the replacement meets current energy and structural code, and the final inspection gives you independent confirmation the work was done right. We pull permits and schedule inspections on every eligible Covina job. Call (877) 610-1318 and we’ll explain exactly which permits apply to your project.
Extreme heat causes wood doors to warp and seals to fail prematurely if the door isn’t properly sized and finished for inland temperatures. We use materials and installation methods rated for Covina’s summer conditions, which run 15 to 20 degrees hotter than the coast. Call (877) 610-1318 to discuss the right door for your home’s sun exposure.
You can, but you shouldn’t. The slab under a 1960s Covina ranch has been moving for six decades, and a patio door opening that has shifted out of square needs correction before the new door goes in. We include an opening assessment on every patio door estimate so you’re not surprised later. Call (877) 610-1318 and we’ll walk you through what we look for.
For a standard Covina ranch, full window replacement runs $4,500 to $15,000 depending on the number of windows, the brand, and whether any openings require reframing from slab movement. Impact-rated windows push the range to $8,000 to $25,000. Your estimate is free and written line by line. Call (877) 610-1318 to schedule it.
Written by Tom Barrett, Owner at Barrett & Sons Construction, founded 1998 and serving Covina and the surrounding communities.







Before
After
Before
After
Before
After