Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterFast, Reliable Door Replacement Across Belmont
Door replacement in Belmont, CA typically runs $900 to $3,200 per exterior door, depending on the door type, the condition of the rough opening, and whether the job stays a clean swap or turns into structural work. Most standard entry door replacements in Belmont take one day once the door is on site. If the frame is rotted or the opening needs reframing, the job stretches to two or three days and the price moves accordingly. Call Juniper Windows & Doors at (682) 281-2168 for a written price before any work starts.
We work across Belmont from the flats near Ralston Avenue up into the hills off Alameda de las Pulgas, and we know what sits behind the walls here: mid-century framing, hillside settlement, and a lot of openings that have been through more than one patch job. Local knowledge keeps your quote honest.
Why Juniper Windows & Doors Is Belmont’s Preferred Door Replacement Company
Belmont homeowners keep calling us because we show up when we say we will and hand over a written price before anything gets unscrewed. Juniper Windows & Doors is part of the Relay Home Co. family, founded in 2001, and every job we run in Belmont carries the 365-Day Done Right Promise: if the work isn’t right, we make it right for a full year after installation, parts and labor, in writing.
Belmont customers regularly tell us the same thing: they picked us because a live person answered the phone at 8 p.m., or because the technician who pulled up in the driveway matched the photo and name on the schedule. That is the Relay Visibility Guarantee, and it is not a tagline. You get a live arrival time you can track, before-and-after photos of the work, and a digital invoice you can pay from a link. No four-hour windows. No phone tag.
Our lead for this area is Sean Mackey, who coordinates every Belmont job from scope to final inspection. When a door replacement in Belmont needs a second look after the wall is open, Sean is the one making sure the price conversation stays transparent, not stressful.
Door Installers in Belmont
Door installers in Belmont earn their pay when the opening fights back. Our crew pulls the old door, checks the header and jamb framing, sizes the rough opening, levels the new slab, and re-flashes the threshold so water stays outside where it belongs. A clean swap on a Belmont home takes about four to six hours for a pre-hung exterior door. That price typically lands between $900 and $1,800 for labor and materials on a standard 36-inch steel or fiberglass unit.
Entry Door Installation
Entry doors in Belmont sit on sloping lots and in homes built anywhere from the 1940s to the 2010s. Rough openings vary by an inch or more even within the same neighborhood, so we measure every opening in person before ordering. A fiberglass entry door from Therma-Tru, for example, sells on dimensional opening fit, not on a guess from a photo.
Interior Door Replacement
Interior doors matter less for Title 24 and more for how the door actually operates. Warped hollow-core doors, sticking slabs on settled floors, and bedrooms that won’t close because a hillside shifted an eighth of an inch. We set pre-hung interior doors with shims and a level, then trim them out so they close without dragging.
Door Contractors in Belmont
Door contractors in Belmont handle what a handyman should not touch: structural openings, load-bearing headers, and doors that have to meet Peninsula building department standards. When a door replacement in Belmont unearths termite damage, old sistered framing, or an undersized header, a licensed contractor steps in and fixes the opening before the new door goes in. That is where our quote changes from a door swap to a reframe, and we show you the cost breakdown before the saw comes out.
Structural Door Opening Repair
We ran a door replacement in Belmont that started as a simple entry-door swap and turned into a structural job. The crew pulled a hollow-core front door on a 1950s ranch near the Belmont hills, found the header and jamb framing had been sistered after old termite damage, and had to reframe the opening before any new door could hang square. We ended up setting a Therma-Tru fiberglass entry unit with a reinforced strike plate and re-flashing the threshold, and the final price reflected exactly what we found inside the wall, not a wishful quote from a phone camera.
Permitted Door Replacement
Some Belmont homeowners replace an entry door as part of a larger permitted remodel. Title 24 energy compliance applies if the door is in the scope of that permit, so the window or door you pick may need a U-factor and SHGC that the building department signs off on. We pull permits when the job requires them and close them out with a passing inspection.
Trusted Brands We Service in Belmont
We stock and install doors from PGT, Therma-Tru, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, and ViewLux, so a Belmont job never has to settle for whatever is on a warehouse shelf in Hayward. We order directly and keep parts moving fast. For Belmont specifically, that means no waiting on a patio door slab that was special-ordered from across the country when PGT or CWS has the right line regional-stocked. Our Door Replacement team knows which lines fit Belmont’s seismic and energy requirements without overselling you an impact-rated door that belongs in a hurricane zone, not the Peninsula.
Common Door Replacement Problems We See in Belmont Homes
- Openings with old, non-engineered framing. Belmont sits in a seismic zone, and a lot of mid-century framing predates current shear-wall and header standards. What looks like a straight door swap from the outside can hide a header that should have been replaced a decade ago.
- Termite and dry-rot damage at the threshold. Belmont’s wet winters and hillside drainage put moisture at the door base. We regularly find rotted sill plates and bottom jambs once the casing comes off, especially on homes off Ralston Avenue and near the Carlmont hillside.
- Rough openings that don’t match nominal door sizes. Belmont homes range from 1940s ranch builds to newer hillside rebuilds, and jamb depth plus rough opening width vary widely. A door ordered off a listed size often needs field modification, so we measure first, order second.
- Sticking or dragging doors from hillside settlement. Homes on Belmont’s slopes shift over time, and interior and exterior doors start dragging jamb edges. Replacing the door without addressing the opening means the new door sticks in eight months.
Pricing for Door Replacement in Belmont, CA
A standard single exterior door replacement in Belmont runs $900 to $1,800 installed. A fiberglass entry door with a full frame replacement lands between $1,500 and $3,200. A patio or sliding door replacement typically runs $1,800 to $4,500, depending on glass package, size, and whether the opening needs reframing. Structural header repair, termite damage remediation, and Title 24 compliance work are the big price movers in Belmont. What does not change: your written price comes before work starts, and if the wall reveals something we did not bid, you see the adjustment in writing and approve it before we touch it. Call (682) 281-2168 for an exact quote on your door.
We Also Serve Cities Near Belmont
Our crews serve Door Replacement in Belmont and the surrounding Peninsula communities. We run jobs in San Carlos, San Mateo, Redwood City, and Burlingame, with the same written pricing and 365-Day Done Right Promise on every door we hang.
Serving Belmont, CA - Our Local Coverage Area
We’re based in the Belmont 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 Belmont
For a like-for-like exterior door swap in Belmont, most single-family homes do not require a permit. The work is treated as a repair when the door size, type, and opening dimensions stay the same. If the door replacement is part of a larger permitted remodel, or if you are changing the opening size, a building permit and Title 24 energy documentation apply. We handle permits when the scope requires them and close them out with a passing inspection. Call (682) 281-2168 for a scope review of your specific door.
Belmont’s hillside lots and mid-century housing stock mean door openings frequently hide framing damage that cannot be seen from the exterior. A quote built on a photo can miss a sistered header, old termite damage, or a rotted sill plate. Once the wall is open, a contractor has an obligation to tell you what the framing actually looks like, and that is when the price moves. Juniper shows you the finding, gives you the revised line-item price in writing, and you approve the added scope before any new work proceeds.
No. Belmont sits on the San Francisco Peninsula, which is in a seismic zone, not a hurricane zone. There is no HVHZ or Miami-Dade NOA compliance requirement in Belmont, so an impact-rated door built for wind-borne debris is not code-mandated here. The honest conversation for a Belmont door is about structural attachment, header and jamb framing, and Title 24 energy compliance, not impact ratings. We will spec the right door for the Peninsula, not sell you a Florida product by default. Call (682) 281-2168 to get the spec conversation started.
A standard exterior door replacement in Belmont takes four to six hours on the same day, assuming the opening is clean and the door is pre-hung. A full frame replacement runs one full day. If the crew finds structural damage or needs to reframe the opening, plan on two to three days, including rough framing, door set, trim, and final inspection. We schedule the crew based on what the wall tells us once the old door is out.
Juniper Windows & Doors stocks and installs PGT, Therma-Tru, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, and ViewLux. For Belmont homes, PGT and CWS lines cover energy and seismic attachment requirements well, and Therma-Tru fiberglass entry units hold up against Peninsula moisture and temperature swings. We help you pick the line that fits your home’s age, framing, and energy goals, then lock the written price before ordering. Call (682) 281-2168 for a free estimate.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Belmont since 2001.