Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across Concord
Window and door replacement in Concord runs $4,500 to $25,000 depending on the job, and the work usually takes one to three days once materials arrive. That’s the honest range, and you’ll get a written line-item quote before anything gets ordered. If you live in one of the 1950s through 1970s ranch homes that fill the tracts off Monument Boulevard, Clayton Road, or Concord Boulevard, you already know those original single-glazed frames have had enough. Call (877) 610-1318 and we’ll walk the house with you, measure every opening, and put the scope in writing.
Why Barrett & Sons Construction Is Concord’s Preferred Windows & Doors Company
Barrett & Sons is owned and operated by Tom Barrett, a name you can look up along with his address and license number before you sign anything. Tom’s sons run the crews, and they’ve been working Concord’s slab-on-grade tracts long enough to know what happens when Montmorillonite clay dries out in August. We’re not a franchise dispatching strangers. When we measure a window opening in Concord, we’re checking for racked frames and past slab movement, because both change how the new unit seats.
Our Windows & Doors team answers calls with a live person around the clock, and estimates for Concord homeowners are free. Every single job gets a written change order before a scope change touches the work. The promise on the contract says it plainly: if it’s not done right, Tom comes back and makes it right within 90 days. One call.
Our Windows & Doors Services in Concord
We focus on the jobs Concord’s housing stock actually needs, and we price them honestly up front. Here’s where most of our window and door work lands.
Window Replacement
Replacing original aluminum or wood single-glazed windows in Concord is the single best move for cutting afternoon heat gain in summer and stopping cold drafts in the damp winter months. We remove the old frames down to the rough opening, inspect the header and sill for signs of past slab movement, then set the new window square with flexible sealant perimeters that tolerate seasonal movement. Most ranch homes here take two windows per bedroom, a living room picture unit, and a kitchen awning or slider, so a full-house replacement in Concord typically runs $4,500 to $15,000.

Sliding & Patio Doors
Sliding patio doors on Concord slab foundations bind mid-summer as the clay beneath the slab contracts, and we see broken rollers and misaligned strike plates every August. We pull the old door, check the slab line for low spots under the track area, and install a new slider with a compression flange and adjustable rollers that handle the movement. If the concrete has dropped more than a half inch, we’ll rough-frame a correction or re-float the sill before the door goes in.

Impact Windows & Doors
Concord doesn’t get hurricanes, but it does get fall Diablo wind events with hot, dry offshore gusts that test every seal on a house. Impact-rated windows and doors also kill noise from I-680 and the BART corridor, which matters if you’re set back from Monument or Clayton Road. Impact window installation in Concord runs $8,000 to $25,000 depending on the number of openings and the level of glass rating you choose.

Door Installation
Front entry doors on Concord ranches take decades of direct afternoon sun, and we replace more rotted thresholds and warped stiles than anything else. A new pre-hung exterior door with proper flashing and a threshold pan keeps winter rain from wicking into the slab edge. We’ll also re-latch and adjust interior doors that no longer close square because the hallway floor has shifted with the seasons.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Concord
We stock and install names you can look up: Milgard, Andersen, and Marvin on windows, plus solid-core entry doors from trusted regional mills. No mystery brands off the back of a van. For Concord customers, we keep common replacement parts and weatherstripping profiles for local ranch-era units in rotation, so a warped slider roller or failed window balance doesn’t leave a house open for two weeks. We also bring concrete-grade setting materials from Quikrete when a slab patch under a door threshold is part of the job.
Common Windows & Doors Problems We See in Concord Homes
- Aluminum frames with steel fasteners corroding. Concord’s hot, dry summers followed by damp winter fogs create condensation inside wall cavities, and those steel screws in aluminum frames rust fast. The result is flaking stucco, air leaks, and frames that don’t hold a shim.
- Sliding doors that bind in summer. As the clay beneath the slab dries and contracts, the patio door track can drop or tilt, breaking rollers and throwing strike plates out of line. We see it most in the flatlands east of I-680 near the older tracts.
- Single-glazed windows baking west-facing walls. Original Concord ranch windows without low-e coatings let afternoon heat penetrate the glass, and the wall cavities around them become condensation traps when autumn cools. That’s where stucco cracks start to hold moisture and mold.
- Racked frames from seasonal clay movement. Window and door openings on slab foundations move with the soil. A window that opens fine in February can bind by late August, and proper flashing plus flexible sealant is the difference between a long-term fix and a repeat call.
Pricing for Windows & Doors in Concord, CA
We don’t give phone quotes and then change them at the door. You get a written line-item estimate, and every change after that arrives as a written change order before work proceeds. Concord pricing tracks with the age of the home and the amount of framing correction the slab movement has made necessary. Here are the two ranges that cover most of our window and door work in Concord:
| Service | Typical Cost in Concord |
|---|---|
| Window Replacement | $4,500 - $15,000 |
| Impact Window Installation | $8,000 - $25,000 |
Sliding and patio door replacement sizes and scope vary more, and we’ll quote the exact door after we measure the opening and check the slab line. Estimates are free, and the 10% senior and veteran discount applies to every eligible job. Call (877) 610-1318 and we’ll set a time to walk the house.
We Also Serve Cities Near Concord
If you’re just outside the Concord line, we serve Windows & Doors in Concord and the surrounding communities too: Pleasant Hill, Contra Costa Centre, Waldon, and Walnut Creek. Scheduling works the same way, and the same written pricing rules apply in every one of those cities.
Serving Concord, CA - Our Local Coverage Area
We’re based in the Concord area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Windows & Doors in Concord
Yes, window replacement in Concord requires a permit when the opening size changes or new framing goes in, and we pull it and meet the inspector on site. The clay soil matters because the inspector checks that the new window is shimmed and sealed to accommodate movement, so a window that looks square at the rough opening but isn’t movement-tolerant can fail a re-inspection. We handle the permit, the inspection, and any correction, and it’s all in the written scope before we start. Call (877) 610-1318 for the details on your specific house.
The native expansive clay under your slab shrinks as it dries through Concord’s hot summer, and the slab edge under the door track drops a fraction of an inch, which binds the rollers and throws the strike plate out of line. It’s not a defect in your door, it’s the ground moving under a 1960s slab. We reset the track with a compression flange and adjustable rollers that handle the seasonal shift, and we schedule slab-sensitive installs for late winter or spring so the concrete has stabilized before final inspection.
A low-e, dual-pane vinyl or fiberglass window with a higher solar heat gain coating on the west and south exposures is the best beat-the-heat choice for Concord ranches. We typically install Milgard or Andersen units with low-e glass and a wider perimeter flange that tolerates the slab movement common on these lots. The coating cuts the afternoon heat load enough that the wall cavity stops becoming a condensation trap in autumn, which is the real long-term benefit. Call (877) 610-1318 and we’ll tell you which glass package makes sense for your facing direction.
We tarp and seal the interior work area, run a HEPA dust extractor at the cut point, and remove old frames in manageable sections so debris goes straight into a covered bin instead of airborne into the side yard. On tight Concord lots, we also stage materials on the street side or in the driveway so we’re not stacking lumber against a shared wall. The dust stays inside the house, the neighbor’s wall stays clean, and the site gets swept and washed down at the end of each day.
For most Concord homes, impact windows are worth it if you want real noise reduction from I-680 or BART and protection from Diablo wind events that send tree limbs and roof tiles flying in fall. They’re not required by code here the way they are in Florida, so if you’re on a quiet interior street the premium may not pay back. We’ll quote both standard low-e and impact-rated glass for the same openings, and you decide with real numbers in front of you. Call (877) 610-1318 for both prices on your house.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Contra Costa County since 1998.







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