Windows & Doors in Larkspur - Written Price Before Anything Is Ordered

Fast, Reliable Windows & Doors Across Larkspur

Window and door work in Larkspur isn’t a one-size-fits-all job. A flat Old Town Craftsman on Magnolia Avenue and a hillside home up in Baltimore Canyon face completely different codes, rot patterns, and installation realities. We’ve been inside both, and we bring that local knowledge to every estimate. If you need Windows & Doors installed, replaced, or repaired, call Barrett & Sons Construction at (877) 610-1318 for a free, no-trip-charge estimate anywhere in the 94939 and 94977 zip codes.

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Why Barrett & Sons Construction Is Larkspur’s Preferred Windows & Doors Company

Tom Barrett founded this company in 1998, and his sons run the crews. That matters in Larkspur, because the person who shakes your hand at the estimate is the same person who shows up with the tools. We’re not a franchise dispatching strangers from three counties away. We live in Marin, we know the building inspectors in Larkspur by first name, and we’ve pulled permits on enough Magnolia Avenue Victorians to know what the plan checker will flag before we even submit the drawings.

Our reputation in Larkspur comes from the way we handle the unexpected. Old houses hide things. We write allowances into every contract so when we open a wall and find rot, the fix is already budgeted. Every change arrives as a written change order before we touch it. That’s not a promise; it’s how we’ve operated for 29 years. And every job carries the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Tom back.

Local Knowledge That Prevents Costly Surprises

Larkspur sits in a valley that funnels marine moisture inland from the bay. Prolonged damp winters accelerate wood rot, subfloor decay, and moisture intrusion in older building stock. A window that looks fine from the street can hide a rotted rough-in that’s been quietly failing for a decade. We’ve learned to inspect for that on every estimate because we’ve seen it on nearly every pre-1950 home in Old Town.

Our Windows & Doors Services in Larkspur

Window Installation

New window installation in Larkspur means matching the architectural character of your home. An early-1900s Craftsman on the flatlands deserves a different approach than a mid-century hillside build. We install Andersen and Marvin windows, and we handle the details that matter: sloped sill pans, positive flashing, and load-bearing headers that satisfy the Larkspur building inspector on the first pass. No callbacks. No open permits left hanging.

Door Installation

Entry doors in Larkspur do double duty. They keep marine moisture out in the winter and they need to hold up to steep hillside conditions in Baltimore Canyon. We install properly flashed, fire-rated entry systems where the WUI code requires them. A pre-1990s wood door with no bottom sweep on a canyon lot is a direct ember path. We replace it correctly, with the fire-rated frame the permit triggers.

Window Replacement

Window replacement in Larkspur typically runs $4,500 to $15,000 depending on how many openings and what we find inside the walls. Old Town sashes with single-strength glass and dried putty let marine moisture into the rough-in until the sill rots and the window drops out of square. We open the wall, replace the header if needed, and flash the new unit so it drains correctly. The permit inspector signs off before we close anything up.

Impact Windows & Doors

Impact-rated windows and doors aren’t just for hurricane country. On Larkspur’s hillside parcels, they serve as a fire-hardening measure that also cuts wind noise and improves insulation. Impact window installation in Larkspur generally lands between $8,000 and $25,000. The range depends on how many openings, the framing condition behind them, and the WUI compliance upgrades the permit triggers. We’ll walk you through all of it before you sign.

Trusted Brands We Service in Larkspur

We carry Andersen and Marvin across our window line, and we stock weatherstripping, sill pans, and flashing materials that fit the common sizes found in Larkspur’s older homes. When a customer needs a quick repair on a 1920s Craftsman double-hung, we don’t want to order parts from a warehouse in another state. We keep the consumables on the truck because that’s what fast turnaround looks like. You can look up every brand we install by name. No mystery materials off a van.

Common Windows & Doors Problems We See in Larkspur Homes

• Rotted rough-ins on Old Town sashes. Single-strength glass and dried putty let bay moisture into the framing. By the time the window is visibly out of square, the sub-sill is usually gone.
• Unflashed hillside sliders on cantilevered decks. Water runs back into the sheathing behind the stucco or siding. You won’t see it until the opening comes apart for a change order.
• Fire-code gaps on Baltimore Canyon doors. Pre-1990s wood doors without bottom sweeps are a direct ember path under Cal Fire’s State Responsibility Area rules. The permit process forces the upgrade, and we plan for that cost in writing.
• Failed retrofit windows on older Larkspur homes. A homeowner installs a vinyl insert over a rough-in that was never flashed, and the original water path keeps working. The insert is fine. The hidden framing isn’t.

Pricing for Windows & Doors in Larkspur, CA

We Also Serve Cities Near Larkspur

Our crews work throughout Larkspur and the surrounding Marin communities. We regularly take jobs in Corte Madera, Kentfield, Mill Valley, and Tamalpais Valley. The same crew that pulls permits in Larkspur will handle the permit in your town, with the same written change orders and the same 90-Day Done Right Promise.

One Larkspur Street, Two Completely Different Buildings

In Larkspur, a windows-and-doors project on a Baltimore Canyon hillside home must account for Wildland-Urban Interface code upgrades that trigger when an opening is touched. Ember-resistant venting, fire-rated door assemblies, and defensible-space-compliant hardware become part of the scope the moment the permit gets pulled. That never comes up on a flat Old Town Craftsman just a mile away. Same city, two different code books. We know which one applies to your address before we write the estimate.

On a Magnolia Avenue Victorian in Old Town, we pulled the original double-hung sashes next to a failed retrofit window and found the rough-in had never been flashed. Just redwood trim against raw framing, quietly holding moisture for decades. Our crew replaced the header, installed an Andersen grille window with a sloped sill pan, and signed off the permit after the inspector confirmed the new flashing and load-bearing detail before we closed the wall. That’s the difference between a crew that has opened Larkspur walls and one that hasn’t.

FAQs - Windows & Doors in Larkspur