Door Replacement in Hillsborough - Free In-Home Measure, Written Price

Fast, Reliable Door Replacement Across Hillsborough

Door replacement in Hillsborough typically runs $1,200 – $4,800 for a standard exterior door, while interior door installation lands between $350 and $900 per door depending on whether the slab is pre-hung or a custom fit. Most Hillsborough projects take 3 – 7 days of actual labor, but the full timeline stretches to 3 – 4 weeks when the town requires a permit and final inspection for an opening modification. That’s the part most contractors won’t tell you upfront. Juniper Windows & Doors, founded in 2001 and part of the Relay Home Co. family, gives you a written price before the first screw turns, and our 365-Day Done Right Promise covers every completed installation for a full year, parts and labor, in writing. If you’re weighing a door replacement in Hillsborough, call (682) 281-2168 and we’ll walk you through exactly what your project needs, including permits, framing, and the right product for your home’s exposure. We coordinate from our San Francisco Bay Area office and send background-checked, uniformed technicians to Hillsborough homes every week.

Why Juniper Windows & Doors Is Hillsborough’s Preferred Door Replacement Company

Hillsborough homeowners have a specific problem: the town’s housing stock is dominated by estates and mid-century homes built between the 1920s and 1960s, and almost none of those rough openings match today’s standard door dimensions. We see it constantly. A homeowner picks a Therma-Tru or PGT door online, assumes the slab will drop in, and the jamb tells a different story once it’s opened. We know how to plan for that before the first cut, not after.

Sean Mackey leads our team, and the standard he sets is the same one Hillsborough buyers expect from any contractor working on a multimillion-dollar home: a written price, a clear scope, and no surprises. That’s the Relay Standard. You book in a tap, see a live arrival time, get before-and-after photos, and pay a digital invoice. No vague estimates that morph into something else.

Our Hillsborough customers also get access to eight product lines: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. That matters because a door spec’d for a flat San Mateo lot isn’t necessarily right for a ridgeline home above the fog line. We stock parts locally for Hillsborough jobs, which shortens lead times on common replacements.

Interior Door Installation in Hillsborough

Interior Door Installation in Hillsborough is rarely just sliding a new slab onto old hinges. In most Hillsborough homes, the interior door openings were framed before modern door standards existed, so the first step is measuring the actual rough opening, not the old door. That measurement determines whether you need a stock pre-hung unit or a custom jamb. A typical interior door replacement in Hillsborough runs $350 – $900 per opening, with the higher end covering solid-core doors, custom casing profiles, or openings that need reframing.

Pre-Hung vs. Slab Replacement

A pre-hung unit comes with its own frame already assembled, which matters when the existing jamb is out of square or the home has settled. We check floor level and door swing before recommending one over the other. In older Hillsborough homes, a slab swap often fails because the original jamb was never square to begin with.

Matching Existing Trim and Hardware

Hillsborough homes built in the Carolands-era style often have custom millwork and period hardware. We match new doors to existing casings or source millwork profiles that align with what’s already in the home. If you’re replacing a door adjacent to original moldings, we can spec a jamb depth and stop profile that won’t look like an add-on.

Door Installers in Hillsborough

Door Installers in Hillsborough have to be comfortable with older framing, hillside settling, and a building department that wants to see the permit before the inspection. Our crews handle exterior entries, interior passage doors, sidelites, and insulated glass unit replacements. We also install impact-rated entry doors where Hillsborough’s wind exposure makes standard glazing a poor choice. A typical exterior door installation in Hillsborough runs $1,200 – $4,800, depending on whether the opening needs reframing and whether the door includes sidelites or custom glass.

Exterior Entry Doors and Sidelites

Many Hillsborough entries pair the door with sidelites, which changes the energy math and the structural spec. An impact-rated door with a laminated glass sidelite costs more than a basic slab, but it’s often what the home actually needs given the town’s hillside wind exposure. We install Therma-Tru exterior systems with factory-applied finishes that hold up to sun and damp air.

Custom and Non-Standard Rough Openings

This is where most Hillsborough projects get complicated. A 1950s rancher off Brewer Drive or a 1920s Lower Hillsborough estate rarely has a rough opening that matches a modern pre-hung unit. When the jamb comes off and the opening is 3 inches wider than the new slab, the job shifts from swap to scoped rebuild. We reframe, flash, and insulate before the new door goes in, then schedule the final inspection.

Trusted Brands We Service in Hillsborough

We service and install doors from Therma-Tru, PGT, CGI, and ViewLux, among others, which gives Hillsborough homeowners options that range from classic wood-grain entry systems to impact-rated glass with high design pressure ratings. Therma-Tru is a common choice for Hillsborough entries because the factory finishes resist the salt air and damp winters, while PGT and CGI doors deliver the impact-rated glazing that holds up on exposed ridgelines. We keep common components and hardware for these lines available locally, so a Hillsborough replacement doesn’t have to wait on a slow out-of-state parts order. If you have an existing door from another manufacturer, call (682) 281-2168 and we’ll tell you straight whether it’s worth repairing or replacing.

Common Door Replacement Problems We See in Hillsborough Homes

• Non-standard rough openings: Hillsborough homes built between the 1920s and 1960s rarely have jamb dimensions that match today’s stock door sizes, so we measure before anyone orders a slab. Ordering a stock Therma-Tru or CGI door before confirming the rough opening leads to weeks of rework.
• Skipped permits on door replacements: Hillsborough requires a permit for anything beyond a same-size, same-swing replacement, and an unpermitted door can stall a future home sale. We handle the permit paperwork and schedule the final inspection so the job closes clean.
• Wind exposure on hillside lots: A door spec’d with low design pressure or without impact-rated glazing in a sidelite can fail inspection or perform poorly in winter storms. Homes along the higher ridgelines face more wind load than those in sheltered Lower Hillsborough pockets.
• Settled framing and old jamb rot: Many Hillsborough doors have been in place since the original build, and the framing behind them has shifted or rotted. We open the jamb, inspect the structural condition, and reframe before installing the new door rather than hiding problems behind trim.

Pricing for Door Replacement in Hillsborough, CA

We Also Serve Cities Near Hillsborough

While this page focuses on Door Replacement in Hillsborough, our crews also serve nearby communities including Los Angeles, San Diego, San Jose, and San Francisco. If you own a home in one of those cities and want the same written-price, 365-day guarantee on your project, our Door Replacement team can scope it the same way.

FAQs About Door Replacement in Hillsborough