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 replacement in Concord typically runs $4,500-$15,000 for a full home, while a single door install usually lands between $800 and $3,000. Most projects we handle in the 94518, 94519, 94520, and 94529 zip codes take one to two days once materials arrive.
If you’ve got a fogged double-pane window, a door that won’t latch, or a sliding patio door that fights you every morning, we’ll send a crew that knows Concord’s older ranch homes. Tom Barrett and his sons run the teams themselves. Call (877) 610-1318 and you’ll get a live person, not a queue.
Why Barrett & Sons Construction Is Concord’s Preferred Windows & Doors Company
We’ve been replacing windows and doors in Concord long enough to know what the Diablo Valley summers do to cheap seals and warped frames. Homes east of I-680, especially around Monument Boulevard and the flatland tracts north of Highway 4, get hammered by triple-digit heat and those dry fall wind events. A window that holds up fine in Walnut Creek will bake and fail here faster. We spec for that.
Our Windows & Doors team works out of our Bay Area office, and crews serve Concord directly. Tom Barrett’s name, address, and license number are published and verifiable. Ask anyone on your street about us, or look up the license yourself. That’s the point of putting it out there.
Every job includes permits pulled and inspections signed when they’re required, a written scope before work begins, and our 90-Day Done Right Promise on the contract. If something isn’t right, one call brings Tom back. No fine print, no runaround.
Our Windows & Doors Services in Concord
Window Replacement in Concord
Most Concord homes we visit are single-story ranches built between the 1950s and 1970s, which means original wood or aluminum frames and single-pane glass. In summer, those windows turn rooms into ovens. Replacing them with modern dual-pane units, often vinyl or fiberglass, cuts heat gain noticeably and makes a real difference on a 100°F day in the Diablo Valley.

Door Installation in Concord
Front doors, back doors, and garage entry doors take a beating here, not just from heat but from the dry, dusty air that settles into hinges and weatherstripping. We install pre-hung and slab doors, deep-set frames, and doors that actually close tight. If your current door has a gap you can see daylight through, that’s not a minor annoyance. That’s your cooling bill leaking out every afternoon.

Impact Windows & Doors in Concord
Even though Concord isn’t on the coast, fall Diablo wind events routinely push 50-70 mph gusts through the valley. Impact-rated windows and doors hold up to wind-driven debris far better than standard units, and they reduce outside noise from Highway 4, I-680, and BART. For homeowners near Treat Boulevard or Willow Pass Road, that noise reduction alone gets mentioned on almost every walkthrough.

Custom Windows & Doors in Concord
Ranch homes have unusual sizes. Not every opening fits a stock 30×48 window, and we regularly order custom-spec units for the oddball frames in Concord’s older tracts. You won’t wait three months. We’ll measure, order exactly what fits, and install it clean.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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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 install and service Andersen and Marvin windows, which means when something fails, you’re not hunting down a mystery manufacturer. These are brands you can look up, with warranties that actually get honored. For doors and patio sliders, we carry premium lines that hold alignment through Concord’s seasonal temperature swings. If you’re unsure what’s currently in your home, we’ll identify it during the estimate and tell you honestly whether repair makes more sense than replacement.
Common Windows & Doors Problems We See in Concord Homes
- Fogged dual-pane glass: Concord’s hot, dry summers stress window seals constantly. Once the seal fails, moisture gets between the panes and you’re looking at replacement, not just a cleaning.
- Sticking sliding patio doors: The expansive clay soils under many Concord slabs shift through the seasons, which can rack door frames out of square. A patio door that slid fine in January may bind in August. We see this regularly in homes near the Concord Naval Weapons Station redevelopment parcels and older tracts off Clayton Road.
- Warped front doors: An entry door facing the afternoon sun on a 105°F Concord day absorbs brutal heat. Solid wood doors, especially older ones without proper sealing, will warp and fail to latch. We replace them with insulated, reinforced units built for this climate.
- Drafty windows with pre-Title-24 insulation: Concord’s postwar homes were built before California’s energy codes got serious. Single-pane windows with aluminum frames conduct heat straight through. Replacing them is often the single biggest energy improvement you can make to a ranch home here.
Pricing for Windows & Doors in Concord, CA
Window replacement across a typical Concord ranch runs $4,500-$15,000 depending on window count, frame material, and whether you need custom sizes. Individual window replacements typically fall between $700 and $2,200 each. Full impact window installation runs $8,000-$25,000 for a while-home retrofit. Door installation starts around $800 and goes to $3,000 for a premium front door with a new frame and hardware.
What moves the price: how many windows, custom sizing, the condition of the existing rough opening, and whether you want standard dual-pane or impact-rated glass. The estimate we give you is the price. Every scope, every allowance, every price change arrives as a written change order before work happens. No surprises at the end.
Call (877) 610-1318 to schedule a free estimate. We’ll measure, price it, and hand you a written quote before you decide anything.
We Also Serve Cities Near Concord
Beyond Concord, our crews cover Pleasant Hill, Contra Costa Centre, Waldon, and Walnut Creek. If your home sits near the Pleasant Hill BART station or over in Walnut Creek’s older neighborhoods, we handle windows and doors there too. We also handle Fence Installation in Concord when homeowners want the property line secured, and Driveway & Pavers in Concord for the hardscape side of a renovation.
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
We typically schedule estimates within a few days and installation within one to three weeks once materials arrive, depending on the scope. Crews serve Concord directly, so you’re not waiting on a crew driving across the Bay. Call (877) 610-1318 and we’ll get you on the schedule.
All of them. We work in the older tracts near Monument Boulevard, the neighborhoods off Willow Pass Road and Treat Boulevard, the flatlands east of I-680, and everywhere in the 94518, 94519, 94520, and 94529 zip codes. If you’re near the Villages at Concord redevelopment area or up toward the Clayton border, we’re there.
For broken glass or a door that won’t secure, we treat it as urgent and get someone out quickly. We can’t promise next-day on custom replacement glass, but we’ll secure the opening and get the order going. Call (877) 610-1318 and someone will answer live, 24/7.
Windows and doors cost about the same in Concord as they do in Pleasant Hill or Walnut Creek, but there are a couple of local factors. Older Concord ranches more often need custom sizing, and impact-rated glass gets requested more here because of the Diablo wind events. All of that gets priced in the written estimate, and it’s the same price if the job takes one day or four. We don’t change the number after we start.
Every job carries our 90-Day Done Right Promise in writing. If something isn’t right, Tom Barrett comes back and fixes it. The windows and doors themselves carry their manufacturer warranties, and we’ll give you the paperwork before installation. Call (877) 610-1318 for a free estimate, or bring us a written estimate from another company and we’ll give you a free second opinion.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Concord and the Diablo Valley since 1998.







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