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 Alpine
Door replacement in Alpine, CA typically costs $850 to $3,400 for a standard interior or exterior unit, with most mid-range projects landing between $1,300 and $2,200 installed. That number shifts based on the door type, whether the frame needs rebuilding, and whether the county requires fire-hardening review on exterior openings. Juniper Windows & Doors handles the full scope: we pull the old unit, inspect the rough opening, set the new door square, flash and seal the perimeter, and trim it out clean. If you’re weighing a door replacement in Alpine, call (682) 281-2168 for a written price before anything starts.
Why Juniper Windows & Doors Is Alpine’s Preferred Door Replacement Company
Alpine homeowners deal with a door environment most coastal contractors never think about. Elevation here runs 1,800 to 2,500 feet on a lot of lots, which means real temperature swings: hard late-summer UV on west-facing doors, occasional freezing nights in winter, and enough thermal movement at the jamb to pull hinges out of square over time. We see it on stucco 1980s ranches along Arnold Way, on newer homes off South Grade Road, and throughout the Dehesa corridor. Our crews know what those conditions do to wood frames, fiberglass skins, and weatherstripping, and we spec doors accordingly.
Every Juniper job in Alpine goes through the same sequence: a written price before any work starts, a background-checked and uniformed technician on site, and photo documentation from tear-out through final trim. Sean Mackey leads the team with one standard: if the door isn’t set square and latching cleanly, the job isn’t done. We have thousands of door replacements behind us since 2001, and the Door Replacement process reflects that. Our phone is answered by a live person 24/7, which matters when you’re trying to line up work around a busy schedule out here.
Interior Door Replacement in Alpine
Interior door replacement in Alpine generally runs $350 to $900 per door installed, depending on whether you’re swapping a hollow-core slab for a solid-core upgrade or tearing out the jamb and casing for a full pre-hung unit. Older Alpine homes, especially the 1970s and 80s ranches common around the Flinn Springs and Harbison Canyon areas, usually have hollow-core doors that have warped, cracked, or pulled away from the hinges. We remove the old slab or frame, confirm the rough opening dimensions, hang the new door with proper clearance, and set new hardware if you want it.
Solid-Core Upgrades for Noise and Feel
Many Alpine homeowners replace interior doors not because they’re broken, but because hollow-core slabs transmit sound and feel cheap in the hand. A solid-core or MDF-core replacement adds weight and sound isolation to bedrooms and bathrooms, and at $450 to $900 per door it’s one of the better dollar-per-improvement investments inside the home.
Matching Hardware and Hinge Tension
We check for hinge sag on every interior replacement. In a house with extreme seasonal temperature swings like Alpine, door frames breathe enough that a slightly loose hinge becomes a door that rubs the jamb six months later. We set hinge screws and adjust tension so the door works cleanly in July and in January.
Interior Door Installation in Alpine
Interior door installation in Alpine covers both pre-hung units in new rough openings and slab-only swaps where the existing jamb is still true. If you’re remodeling, adding a room, or finishing a garage conversion up near Viejas Mountain or down by the Loveland Reservoir area, the rough opening gets a new pre-hung unit. That work typically lands between $650 and $1,400 per door, including casing and hardware. If you’re in an existing home and the frame is solid, a slab-only swap at $300 to $600 keeps costs down.
Pre-Hung Units for New or Rebuilt Openings
A pre-hung interior door install means the slab, jamb, and casing come as a set, built square and shimmed level in your rough opening. It’s the right call when an Alpine fire-hardening project or water damage forces a reframe, or when you want a taller door and need the opening enlarged. We set it plumb, seal the gap, and trim both sides.
Closet and Passage Doors
Closet doors, pantry doors, and hallway passage doors in Alpine homes are often bypass sliders or bi-folds that have come off their tracks. We can replace the slab, rebuild the track, or convert a slider to a hinged unit if the opening allows. Budget $300 to $900 depending on the style and frame work involved.
Trusted Brands We Service in Alpine
We install and service doors from PGT, Therma-Tru, CGI, and ViewLux, which means an Alpine homeowner isn’t stuck picking from whatever a wholesaler has in the yard that week. For exterior doors on high-UV, fire-prone lots, PGT and CGI impact-rated units earn their keep. For entry doors on stucco ranch homes that see real sun and frost movement, Therma-Tru fiberglass is our standard recommendation. We keep common hardware and weatherstripping stock for these lines locally, so warranty parts and adjustments don’t turn into a three-week wait. Door Replacement in Alpine work gets the right product, not the convenient one.
Common Door Replacement Problems We See in Alpine Homes
- Sun-baked east and west-facing exterior jambs. Alpine doors take brutal afternoon sun in summer, and wood or composite frames expand, swell, and pull hinges out of square. A door that won’t latch in August and sticks in January is usually the jamb, not the slab.
- Soft sheathing hiding behind a stucco rough opening. Once we pull an exterior door on an older Alpine home, we sometimes find the head flashing was never installed and the sheathing behind the stucco has rotted. That’s a repair we can handle on the spot with a written change order before we proceed.
- Freeze-thaw stress on wood exterior frames. Alpine’s occasional winter nights below freezing, followed by warm afternoons, create exactly the kind of thermal cycling that cracks wood door frames and breaks paint seals. Fiberglass and steel hold up better in this climate.
- Mis-specified doors carried up from coastal assumptions. A door spec’d for coastal San Diego doesn’t always handle Alpine’s wider temperature range and wind exposure. Undersized glazing units and light-duty weatherstripping fail faster here.
Pricing for Door Replacement in Alpine, CA
Here’s what Alpine homeowners can expect to pay, line item by line item:
- Interior slab replacement (standard hollow-core to solid-core): $350 to $900
- Pre-hung interior door with casing and hardware: $650 to $1,400
- Standard exterior entry door, fiberglass or steel, installed: $1,200 to $2,200
- Impact-rated exterior entry door (PGT or CGI), installed: $2,200 to $3,400
- Rough opening repair (flashing, sheathing, jamb rebuild) when hidden damage is found: $300 to $1,100, quoted in writing before we touch it
You will get a written price for your specific door before any work begins. No estimate that softens into a surprise invoice. Call (682) 281-2168 to schedule a free on-site quote in Alpine.
We Also Serve Cities Near Alpine
Our crews cover Alpine and the surrounding backcountry, including Alpine proper, Jamul, Descanso, Lakeside, and El Cajon. If you’re right on the edge of the 91901 or 91903 ZIP areas, call and we’ll confirm coverage for your street. You’ll get the same written price and Done Right guarantee whether we’re driving ten minutes or forty.
Serving Alpine, CA - Our Local Coverage Area
We’re based in the Alpine 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 Alpine
Yes, in many cases. Alpine is unincorporated San Diego County, so the county building office, not a city, is the permit authority. A like-for-like exterior door swap can sometimes skip full plan review, but if the opening is altered, the framing is touched, or the home is on a fire-hardening path with defensible-space requirements, the county will want it permitted and inspected. We handle the submittal and pull the permit for you when it’s needed. Call (682) 281-2168 and we’ll tell you exactly what applies to your address.
Elevation and temperature range. Alpine sits at roughly 1,800 to 2,500 feet, which means hotter summer sun on west-facing doors and occasional freezing nights in winter. Those swings cause wood and composite jambs to expand and contract enough to throw hinges out of square, so doors rub, stick, or fail to latch. Coastal doors don’t move as much because the temperature range is narrower. Fiberglass frames and proper hinge tension solve most of it for good.
Most interior door replacements in Alpine are done in one day. A standard exterior replacement is also usually a one to two day job once the door is on site. The variable is order lead time: custom sizes, impact-rated glazing, and special finishes typically take two to six weeks from order to install in our experience. For a realistic calendar for your project, call us at (682) 281-2168 and we’ll give you a straight answer.
The two most common surprises are soft sheathing behind the stucco and an out-of-square rough opening that needs reframing. Alpine’s wildland-urban interface also means exterior openings sometimes need fire-hardening upgrades, like rated jambs or specific flashing details, to satisfy county review. We photograph the opening and give you a written change order before adding any work, so the final number is never a mystery. That’s the 365-Day Done Right Promise in practice.
Usually yes, if the door faces east or west and takes full afternoon sun or sits on a slope exposed to Santa Ana winds. Impact-rated glass from PGT or CGI is built to resist wind-borne debris without shattering, and it also cuts UV damage to interior flooring and furniture. It costs more upfront, typically adding $800 to $1,200 to a standard entry door, but it ages better in Alpine’s conditions. We’ll show you both options with honest numbers.
Ready to get a written price for your door replacement in Alpine? Call Juniper Windows & Doors at (682) 281-2168 and schedule your free estimate today.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Alpine and greater San Diego County.