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 Bostonia
If you’re searching for Door Replacement in Bostonia, CA, here’s the short version: a standard exterior slab swap typically runs $950 to $2,800 installed, a full pre-hung exterior door with sidelites lands between $2,500 and $5,500, and interior door replacement in Bostonia usually costs $350 to $900 per door depending on material and whether the jamb needs rebuilding. Juniper Windows & Doors handles the whole job from tear-out to trim, with a written price locked in before any work starts. Call us at (682) 281-2168 to schedule a free estimate, and we’ll send a background-checked technician to your Bostonia home to measure, spec, and scope the project exactly.
Why Juniper Windows & Doors Is Bostonia’s Preferred Door Replacement Company
Bostonia homeowners call us because we treat a door replacement like the structural project it actually is. Sean Mackey, who leads our team, has built the business around one rule: the price we put in writing is the price you pay, no matter what the crew finds behind the old door. That matters in Bostonia, where expansive clay soil and hillside lots mean jambs shift, thresholds rot, and rough openings are rarely square in homes built across several different decades.
We answer our phones around the clock, and when you book with us, you get The Relay Standard: a live arrival time you can track, before-and-after photos of the work, and a digital invoice you can pay from your phone. No four-hour windows, no voicemail maze. Just a real person who knows Bostonia’s housing stock and can talk specifics about your project.
Every door we install is backed by our 365-Day Done Right Promise: if the work isn’t right, we make it right for a full year, parts and labor, in writing. Bostonia clients also get a free second visit if a repair fails.
We carry eight product lines including PGT, CGI, and ViewLux, so an impact-rated or thermally efficient door isn’t a special order we have to chase down. It’s on our shelf, ready for your Bostonia project.
Interior Door Installation in Bostonia
Interior Door Installation in Bostonia usually means one of two things: hanging a new slab in an existing jamb, or tearing out the old jamb and setting a pre-hung unit. In older Bostonia homes, especially those built before the 1990s, pre-hung is the more common path because the original rough openings were framed inconsistently and the jambs have shifted on clay soil. Slab swaps work when the jamb is still square and the hinge mortises line up. A standard hollow-core interior door with new hardware runs $350 to $550 installed in Bostonia. Solid-core doors, which homeowners choose for bedrooms and home offices for sound damping, run $500 to $850. Custom heights or widths push that toward $900.
When a slab swap makes sense
If your Bostonia home has a jamb that’s plumb and the hinges are tight, replacing just the slab keeps the project fast and the price low. We check the rough opening with a level before quoting a slab, because if the framing has moved even 1/8 inch out of square, a new slab will bind or gap. That’s common on Bostonia’s hillside lots, and we’d rather tell you before we start than discover it mid-project.
When the jamb needs to go too
Pre-hung interior door installation is the honest fix when the existing jamb is cracked, the door has been shaved repeatedly, or the reveal around the slab is uneven. We set the new unit with shims, check swing and latch with one push, and trim it out clean. The price lands in the $450 to $750 range per door in Bostonia, and the job usually takes half a day for a single unit.
Door Installers in Bostonia
Door Installers in Bostonia have to deal with something coastal crews rarely see: thermal swing. Triple-digit summer days followed by cool inland nights cause door slabs, especially dark-painted ones, to expand and contract enough to slide off the strike or bind in the jamb. A good Bostonia door installer specs for that, using full-perimeter shims, proper reveal gaps, and weatherstripping that flexes without buckling. Juniper crews are door installers first and foremost, not general handymen, so the hinge mortises are routed clean, the threshold is bedded in sealant, and the door latches with one push before we call the job done.
Exterior door installation
Every exterior door in Bostonia gets set with a full-perimeter shim and seal, not foam alone, because Bostonia’s temperature swings punish sloppy gapping. We flash the rough opening properly, bed the sill pan, and grade the threshold so water runs away from the house. A standard exterior door runs $950 to $2,800 installed here, depending on material and whether sidelites are involved.
Sidelite and French door replacement
West-facing French doors and entry units with sidelites are the most common exterior replacements we do in Bostonia. The glass loses its low-E seal over years of direct sun, and the slab warps. We pull the entire unit, re-square the opening, and set the new one so the sightlines are straight and the latch works. These projects run $2,500 to $5,500 in Bostonia, with fiberglass from Therma-Tru being a frequent choice for our customers who want something that will not move with the inland heat.
Trusted Brands We Service in Bostonia
We stock and install PGT, CGI, CWS, and ViewLux products for Bostonia homes, which means we’re not sending a tech back to a warehouse an hour away for hardware. PGT and CGI make impact-rated doors tested to Miami-Dade standards, though Bostonia doesn’t require that rating. ViewLux produces thermally efficient fiberglass and glass-heavy door systems that suit Bostonia’s heat-gain reality. We also service doors from Therma-Tru and Mr-Glass. If you already have a door from one of these brands, we can source the exact replacement parts and match the finish, instead of telling you the whole unit has to go.
Common Door Replacement Problems We See in Bostonia Homes
- Slab warp on west-facing doors: Bostonia’s summer sun beats on west exposures, and dark-painted fiberglass or wood doors absorb that heat. The slab bows, the jamb loses contact, and the door won’t latch. That’s a full unit replacement, not a hinge adjustment.
- Rotted thresholds from expansive clay: Bostonia’s clay soil holds moisture against foundation walls and door sills. We routinely pull a door and find the subfloor beneath the threshold is spongy, which means the new door needs a rebuilt rough opening before it can be set square.
- Fogged sidelite glass: Entry units with sidelites fail first at the seal. Once that low-E insulated glass fogs, the energy efficiency is gone and the glass has to be replaced or the whole unit swapped. We see this constantly in older Bostonia builds.
- Out-of-plumb rough openings: Hillside lots shift, and framing that was barely square in 1985 isn’t square now. A new door set in a racked opening binds at the top corner. Our crews fix the opening, not just the door, so the replacement actually closes.
Pricing for Door Replacement in Bostonia, CA
Here’s what Bostonia homeowners should expect to pay. Interior slab replacement: $350 to $550 per door. Solid-core interior door with pre-hung jamb: $500 to $850 per door. Standard exterior door (fiberglass or steel, no sidelites): $950 to $2,800. Exterior door with sidelites or French double door: $2,500 to $5,500. The biggest cost drivers are material (fiberglass costs more than steel, impact-rated glass more than standard low-E), whether the rough opening needs rebuilding, and whether the existing door is a custom size that requires milling. Every Juniper quote is itemized and written before work starts, so you see the exact material, labor, and disposal line items. Call (682) 281-2168 for a free estimate at your Bostonia home.
We Also Serve Cities Near Bostonia
While this page covers Door Replacement in Bostonia, our crews also handle door projects in Los Angeles, San Diego, San Jose, and San Francisco. If you’re on the edge of Bostonia or splitting time between two properties, call us and we’ll let you know exactly when a crew can be at either address.
Serving Bostonia, CA - Our Local Coverage Area
We’re based in the Bostonia 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 Bostonia
Yes, Bostonia exterior door replacements that alter the rough opening or framing typically require a building permit from San Diego County, and the final installation must pass a structural inspection. We pull the permit, schedule the inspection, and stand behind the results. Call (682) 281-2168 and we’ll confirm what applies to your specific Bostonia property.
A standard in-stock exterior door takes one day to install in Bostonia once materials are on site. Custom-sized doors or units with sidelites add two to four weeks for manufacturing. Interior door swaps usually complete in half a day per door. We give you a written timeline with the quote, not a vague window. Call (682) 281-2168 to get your project on the calendar.
It can, but it depends on your carrier and whether Bostonia falls under their wind mitigation discount map. Many Bostonia homeowners see a modest premium reduction when they install a door with a Florida Product Approval, but the bigger savings usually come from lower cooling costs on west-facing entries. We’ll provide the spec documents your insurer needs. Call (682) 281-2168 and we’ll walk through what to request.
The biggest cost drivers in Bostonia are material choice, rough-opening condition, and whether sidelites or custom sizing are involved. A standard steel door starts around $950 installed. Fiberglass adds $400 to $900. Impact-rated glass pushes an exterior unit past $3,000. If we find a rotted subfloor or racked framing, the rebuild adds to the scope, and we write that line item into the quote before we touch it. Call (682) 281-2168 for an exact number on your door.
The honest answer: hidden rot, out-of-square framing, or a rough opening that’s larger than the standard size. Bostonia’s clay soil and older housing stock make all three more common than you’d expect. That’s why our quotes include a check of the subfloor and framing before we sign off on the final number. If something surfaces mid-project, we stop, show you photos, and get written approval before any additional work happens. No surprise invoices. Call (682) 281-2168 to schedule your free estimate.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Bostonia since 2001.










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