Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Martinez
Window installation in Martinez runs $450 to $1,800 per opening for most homes, depending on whether we’re replacing a standard double-hung or setting a bay window that needs new structural support. A whole-house job of eight to twelve units typically takes two to four working days, though homes in the historic district often add a day for design review paperwork and careful trim matching. Our crews know Martinez’s neighborhoods well: from the flat 1950s ranches near Hidden Lakes Park to the hillside bungalows off Alhambra Avenue, we field-measure everything before ordering, because out-of-square openings are the rule here, not the exception. Call (682) 281-2168 and we’ll give you a written price before anything gets ordered.
Why Juniper Windows & Doors Is Martinez’s Preferred Window Installation Company
Martinez homeowners keep calling us because we answer the phone. A live person picks up at (682) 281-2168, every time, and you don’t sit through a voicemail maze. Our technicians arrive in uniform, background-checked, with a live arrival time you can track from your phone. We’ve handled window work from Virginia Hills to the Alhambra Valley, and the feedback from Martinez customers consistently points to the same things: we show up when we say we will, the written price stays the written price, and we leave the site cleaner than we found it.
Sean Mackey runs our window installation side, and he’s built the Martinez crew around one rule: if we wouldn’t put it in our own house, we won’t put it in yours. That means re-flashing every opening, not just the ones that look bad. It means ordering laminated glass where the wind off the Carquinez Strait demands it. And it means the 365-Day Done Right Promise in writing on every job. If something’s not right a year later, we make it right. Parts and labor.
Window Contractor in Martinez
A window contractor in Martinez is the company that pulls the permit when one is required, orders the units, removes the old sashes and frames, repairs any rotted jamb or sill, flashes and seals the opening, sets the new window, trims the interior and exterior, and hauls away the debris. When you hire Juniper as your Window Installation contractor, you get a single crew accountable for the whole sequence, not a subcontractor who disappears after setting glass.
Permits and Historic Review
Martinez’s historic downtown blocks and parts of the hillsides fall under design review, which means the city wants to see that replacement windows match the character of the original house. We handle that paperwork and the measurements for you. If your address isn’t in a designated district, a standard permit with inspection still applies, and we pull it.
Written Pricing Before Any Work
We scope the job, field-measure every opening, and hand you a line-item written price. A typical double-hung replacement in Martinez runs $650 to $1,150 per unit installed, including flashing, trim, and haul-away. Bay and bow windows start around $2,800 and can reach $6,000 or more when structural headers and new support framing are involved.
Window Installers in Martinez
Window installers in Martinez are the people who actually do the physical work: cutting out old frames, squaring up openings, foaming and flashing, setting the units, and making the interior casing look like it belongs. Our Martinez installers have replaced windows in 1920s bungalows where the sills were rotted through, and in 1980s stucco homes where the original aluminum frames leaked at the corners. They’ve seen every opening condition this town can produce.
Field-Measured, Never Guessed
We don’t order standard stock sizes and hope. Martinez’s pre-1940 homes are rarely square; a half-inch difference across a five-foot opening is common. Our installers measure each opening in three places: top, middle, and bottom, then order to the narrowest dimension. That’s how air gaps get prevented before they happen.
Flashing Built for the Strait
Wind-driven rain off the Carquinez Strait pushes water sideways into window openings. We use stepped flashing at the head and sill pans with back dams, sealed with high-grade urethane caulk. The goal is simple: water that gets past the cladding leaves through the weep system, not into your framing.
Trusted Brands We Service in Martinez
We install and service window systems from PGT, ViewLux, and CGI, among our full line. PGT’s impact-rated units hold up to design pressures common in hillside exposures, while ViewLux gives us slim frame profiles that satisfy historic-district proportions. CGI’s laminated glass options are worth a look if your home faces southwest into the afternoon sun. We stock local replacement hardware and glass for Martinez customers, so if a sash breaks or a balance fails, we’re not waiting on a slow freight order. Call (682) 281-2168 to talk through which line fits your house and budget.
Common Window Installation Problems We See in Martinez Homes
- Out-of-square openings on pre-1940 homes. Downtown and hillside Martinez houses built before World War II rarely have true 90-degree corners. Ordering without field-measuring leads to air gaps, failed water tests, and windows that stick when the seasons change.
- Rotted sills and jambs hidden behind intact trim. We regularly find decayed wood at the bottom corners of windows on homes near Alhambra Creek, where winter moisture collects. If the rot goes unaddressed, the new window won’t seal and the framing keeps degrading behind the trim.
- Flashing failures from wind-driven Carquinez Strait rain. Standard caulk-and-go installations don’t survive Martinez’s sideways rain. Without head flashing and sill pans, water tracks behind the trim and shows up as peeling paint, stained drywall, or mold on the interior sill.
- Historic-district surprises mid-project. Homeowners sometimes learn after demo that their address needs design review or extra structural work on a hillside lot. We verify overlay-zoning and geologic-review status before the first crew member shows up, so nothing changes once we start.
Pricing for Window Installation in Martinez, CA
Here’s what we quote in Martinez today. Single and double-hung replacements run $450 to $1,150 per unit. Casement and awning windows land between $650 and $1,400 each. Horizontal rollers and three-panel sliders start at $900 and reach $2,600 for wider openings. Picture and fixed windows run $400 to $1,200 installed, depending on glass. Bay and bow units with structural work run $2,800 to $7,500. Garden windows sit at $1,200 to $2,400. The biggest cost drivers are opening size, glass package, and whether the jamb or sill needs repair once we open the wall. Every quote is written, line by line, before anything starts. Call (682) 281-2168 and we’ll walk your house and hand you exact numbers.
We Also Serve Cities Near Martinez
Our Window Installation in Martinez team also covers the surrounding area, including Pleasant Hill, Benicia, Lafayette, and Concord. If you’re right outside Martinez proper, don’t worry, you’re still in our service zone and pricing stays consistent across the corridor. Call (682) 281-2168 and we’ll confirm availability for your street.
Serving Martinez, CA - Our Local Coverage Area
We’re based in the Martinez 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 About Window Installation in Martinez
Yes. Most window replacements in Martinez need a building permit, and homes located within the city’s Historic Conservation District also go through design review before installation can begin. We pull permits, file the design-review application, and negotiate with the city on your behalf, so you don’t sit on hold at City Hall. Call (682) 281-2168 for a free estimate that includes this paperwork.
Most whole-house jobs of eight to twelve windows in Martinez take two to four working days from first removal to final trim and haul-away. Homes with significant jamb rot or historic-district trim requirements add a day or more. We schedule in advance and give you a start date in writing, not a vague window.
When we open the wall, the things that change price are rotted sills, rotten jambs, missing headers, or hidden termite damage. That’s repair scope, not an upsell; we show you photos of what we found and write the additional work into a change order you approve before we touch it. The original window price stays fixed.
Yes. Low-E insulated glass with a lower U-factor reduces heat gain through west-facing glass, which matters a lot in Martinez where afternoon sun hits hard from May through October. We recommend laminated glass or a low-solar-gain package for homes on the hillsides that take full western exposure. Give us your address and we can tell you which glass makes sense for your orientation.
We install ViewLux, PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, and Therma-Tru. For Martinez specifically, PGT’s impact-rated line is a strong fit for hillside wind exposure, while ViewLux’s narrow frames work well when historic-district proportions matter. We’ll help you pick based on your home’s age, orientation, and design-review constraints.
Call (682) 281-2168 to schedule your free window installation estimate in Martinez. We bring the measuring tape, the local knowledge, and a written price you can take to the bank.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Martinez since 2001.










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