Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Replacement Across Tamalpais-Homestead Valley
Door replacement in Tamalpais-Homestead Valley typically runs $880 – $2,650 for interior doors and $1,900 – $5,400 for exterior units, with most jobs completed in one day once the door arrives. We’re Juniper Windows & Doors, and we work throughout Tamalpais-Homestead Valley, from Almonte Boulevard up to the ridge roads off Panoramic Highway. If you’re calling about a door that sticks, drafts, or won’t latch, call (682) 281-2168 and we’ll walk through what you’re seeing before we even schedule the visit.
Why Juniper Windows & Doors Is Tamalpais-Homestead Valley’s Preferred Door Replacement Company
We’ve replaced doors in enough Tamalpais-Homestead Valley homes to know what the valley throws at a door: winter rain that finds every gap in an old jamb, summer sun that warps a south-facing slab, and steep lots where a prehung unit has to be staged on a slope before it goes in. Local homeowners tell us they call Juniper because we answer the phone with a person, not a queue, and because the price we quote is the price on the invoice. Sean Mackey, who leads our team, insists every job gets a written price before any work starts. That’s the Relay Visibility Guarantee at work: a live arrival time you can track, before-and-after photos of every job, and a written price before anything begins. We carry PGT, Therma-Tru, and ViewLux product lines, so material selection doesn’t mean waiting weeks on a specialty order. The 365-Day Done Right Promise covers parts and labor for a full year after installation, in writing, on every project.
Interior Door Replacement in Tamalpais-Homestead Valley
Interior Door Replacement in Tamalpais-Homestead Valley means pulling an old slab and its worn hinges and setting a new door that actually swings clean and latches without a shoulder check. You call us when a door has swollen past its frame, when a hinge is tearing out, or when a bedroom door no longer closes because the house settled. In Tamalpais-Homestead Valley, we see a lot of original hollow-core doors from 1960s and 1970s builds that have gone soft at the bottom from years of moisture.
Hollow-Core to Solid-Core Upgrades
Many valley homeowners upgrade hollow-core slabs to solid-core doors for quieter bedrooms and a heavier feel. Plan on $310 – $620 per door including hardware and labor. Solid-core also holds a hinge better over time, which matters in older homes where door frames have shifted.
Matching Older Valley Interiors
Plenty of Tamalpais-Homestead Valley homes have mid-century trim profiles that aren’t stocked at big-box stores. We order doors to match the existing stile and panel profile rather than forcing a generic six-panel into a house full of flat-slab doors. That kind of match runs $290 – $540 per door.
Interior Door Installation in Tamalpais-Homestead Valley
Interior Door Installation in Tamalpais-Homestead Valley involves setting a prehung unit into an existing rough opening, shimming it plumb and level, and trimming it out so the door swings true and stops without slamming. You need this when the frame itself is damaged, twisted, or no longer square. We get a lot of calls from homeowners off Miller Avenue whose door frames have gone out of square after decades of seasonal soil movement.
Prehung Door Installation
A prehung interior door with frame, casing, and hardware installed runs $520 – $980 in Tamalpais-Homestead Valley. We pull the old frame, check the rough opening with a level and square, and set the new unit with shims before insulating any gaps. This fixes problems a slab swap can’t.
Closet and Bifold Door Install
Replacing a hallway bifold or a sliding closet door runs $290 – $520 for standard sizes. We stock common widths locally, which keeps turnaround fast for Tamalpais-Homestead Valley jobs. Custom-width bifolds cost more and take about a week to order.
Trusted Brands We Service in Tamalpais-Homestead Valley
Juniper Windows & Doors installs and services PGT, Therma-Tru, and ViewLux product lines, and we stock common hardware and parts that fit these brands locally for faster turnarounds in Tamalpais-Homestead Valley. Therma-Tru fiberglass doors hold up particularly well against the valley’s winter moisture, while ViewLux and PGT lines give us solid options for exterior doors with impact-rated glass built to resist wind-borne debris without shattering. We’re a windows-and-doors specialist inside the Relay Home Co. family, which means our technicians work with these exact product lines every day, not once a month as a side trade.
Common Door Replacement Problems We See in Tamalpais-Homestead Valley Homes
- Marin County permit flags at resale. Unpermitted door changes surface during escrow and can stall a close. Missing paperwork is one of the most common issues we see when a Tamalpais-Homestead Valley homeowner tries to sell.
- Warped sashes from valley humidity swings. Doors on older homes off Almonte Boulevard and along Evergreen Avenue sit in microclimates where damp winters turn to dry summers fast. That movement warps sashes until they no longer seal against the frame.
- Narrow access on steep, wooded lots. A prehung door unit can’t always make the turn up a switchback driveway or fit through a tight side gate. We plan staging from the street and measure passage clearances before the order goes in.
- Out-of-square frames on older builds. Houses from the 1950s and 1960s throughout Homestead Valley have frames that settled out of square by a quarter inch or more. Stock doors get ordered to standard sizes and then pinch at the corners. We always measure the actual rough opening and jamb depth first.
Pricing for Door Replacement in Tamalpais-Homestead Valley, CA
A typical interior door replacement in Tamalpais-Homestead Valley runs $290 – $620 for a slab swap and $520 – $980 for a complete prehung unit with new frame and casing. Exterior doors range from $1,900 for a basic steel entry to $5,400 for a Therma-Tru fiberglass unit with impact-rated glass and a full frame replacement. Material choice is the largest cost driver, followed by the framing work when an old jamb is too far gone to reuse. Fire-rated exterior doors, required in this wildland-urban interface zone, add roughly $280 – $500 depending on the rating. Every Juniper quote is a written line-item price before work starts, not a ballpark. Call (682) 281-2168 for a free estimate on your specific door.
We Also Serve Cities Near Tamalpais-Homestead Valley
Beyond Tamalpais-Homestead Valley, our crews handle Door Replacement work in Los Angeles, San Diego, San Jose, and San Francisco. If you’re up the ridge or toward the coast, we still quote the same written price. See our Door Replacement in Tamalpais-Homestead Valley page for local specifics.
Serving Tamalpais-Homestead Valley, CA - Our Local Coverage Area
We’re based in the Tamalpais-Homestead Valley 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 Door Replacement in Tamalpais-Homestead Valley
Yes. Tamalpais-Homestead Valley sits on unincorporated Marin County land, so door replacement permits go through Marin County Building & Safety rather than a city building department. Exterior door replacements are reviewed for fire-resistance and weather-sealing detail because the valley is a wildland-urban interface zone, not just for size and swing. Replacing a door without a permit surfaces during resale and can stall a close. Call (682) 281-2168 and we’ll confirm what your job triggers before you commit.
Two reasons, mostly. First, Marin County permit review times vary and exterior door work in the WUI zone often needs a fire-rating check. Second, many Tamalpais-Homestead Valley lots are steep and wooded, so we plan staging and access before the door ever arrives on site. Interior door work without permit triggers can often be scheduled within a week. We’ll give you a realistic calendar on the estimate, in writing.
Most price changes happen because of hidden framing damage, an out-of-square rough opening, or rot discovered behind the old jamb. That’s why we measure carefully before quoting and explain any possible adjustment before work begins. The written price you get from Juniper is the price you pay, unless you approve a change order in advance. Call (682) 281-2168 and we’ll scope your opening properly the first time.
Yes, noticeably. The valley gets winter rain that finds every gap in an old jamb, and a properly sealed Therma-Tru or PGT exterior door stops that. On a recent job off Almonte Boulevard, we replaced a warped sliding patio door with a Therma-Tru fiberglass unit set in a new jamb, foamed and sealed the perimeter, and the homeowner told us the room held heat better the first cold night. That’s what the 365-Day Done Right Promise covers: if it isn’t sealing right a year later, we make it right.
We don’t order stock sizes and hope. We measure the actual rough opening and jamb depth, then order a door to match, even when the frame is out of square by a quarter inch or more. In a valley full of 1950s and 1960s homes that have settled, that’s the difference between a door that swings clean and one that pinches at the corner. Expect $620 – $1,100 for a custom-fit prehung interior unit depending on material.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Tamalpais-Homestead Valley and surrounding Marin County communities.










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