New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows West Covina pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Door Replacement Across San Dimas
Replacing an exterior door in San Dimas typically costs $1,400 to $4,800 for a standard entry door, and $2,800 to $7,500 when the job involves impact-rated glass or a hillside permit package. Most of our San Dimas projects are completed in one day once the permit clears, which is the variable we help you manage on the front end. We know this city’s housing stock, its foothill inspection quirks, and exactly what a county-style permit package needs to avoid a stalled job. Call (350) 305-4609 to schedule a free written estimate, and we’ll walk the opening with you before quoting anything.
We’re not a general remodeling crew that happens to hang a door. Door Replacement is one of three things we do, and we do it daily across San Dimas, Glendora, and the surrounding foothill communities. That focus means our techs have seen every 60s ranch and 80s split-level opening style this city produces, and we’ve already solved the permit issues your street may trigger.
Why Juniper Windows West Covina Is San Dimas’s Preferred Door Replacement Company
Sean Mackey leads our San Dimas crews, and the standard he set is simple: every job gets a written price before any work starts, and every completed installation is covered by our 365-Day Done Right Promise. If the work isn’t right, we make it right, parts and labor, in writing, for a full year. San Dimas homeowners tell us that’s the reason they stop shopping after our first visit.
Our techs arrive in uniform, background-checked, and with a live arrival time you can track through the Relay Visibility Guarantee. You’ll get before-and-after photos of every job and a digital invoice you can pay from your phone. No four-hour windows, no voicemail maze. When you call (350) 305-4609, a real person answers, day or night.
We carry eight product lines, including PGT, Therma-Tru, and ViewLux, which means the right door for a San Dimas foothill lot is never a compromise. Impact-rated glass, low-E coatings, custom sizing for non-standard rough openings: we scope it once and quote it once. Door Replacement in San Dimas is what we do, not a side service.
Door Contractors in San Dimas
Door Contractors in San Dimas handle more than swapping a slab. Here, the work often starts with a permit package that must clear hillside and wildfire-adjacent overlay review before we can order a single component. A typical entry-door replacement with standard dual-pane glass runs $1,400 to $2,900. A PGT impact-rated unit on a wildland-urban interface lot runs $3,200 to $6,400, depending on rough-opening size and frame condition.
Permit-Ready Scoping
On hillside and WUI-designated properties, we submit a door schedule that lists windborne-debris impact ratings and ember-intrusion sealing for every opening. Our quote includes this line item upfront, because we’ve seen builders order a door, then hit a county stop on the permit. Three to six weeks of delay over a missing schedule is avoidable.
Retrofit vs. New Opening
Most San Dimas ranch homes have non-standard rough openings. We measure, then quote the custom jamb work before you commit. If we’re enlarging an opening or reframing after years of sun and Santa Ana movement, we tell you what that framing and stucco repair costs in the same written estimate.
Door Frame Repair in San Dimas
Door Frame Repair in San Dimas often follows decades of inland valley heat and seasonal Santa Ana wind cycling. We see jambs that have pulled from studs, thresholds that have dropped, and sills that no longer shed water away from the slab. A straightforward frame repair with new sill pan and weather sealing runs $320 to $750. Where the rough opening itself has shifted or rotted, $900 to $1,800 is realistic.
Wind-Loaded Frame Repair
On a 1970s ranch off Foothill Boulevard, our crew replaced a sun-warped aluminum slider with a PGT impact-rated door carrying Miami-Dade NOA and Florida Product Approval. The old jamb had pulled away from the studs after decades of Santa Ana wind cycles, so we reframed the opening, set a new laminated glass interlayer unit with low-E and a 0.25 SHGC, and upgraded the sill pan to shed runoff toward the existing lot drainage, eliminating the egress flag a resale inspector had written up.
Water Intrusion and Sloping Lots
Downslope lots in San Dimas need a raised sill or a drain mat under the threshold. Without it, sheet flow from a heavy rain event gets trapped against the door, and the frame rots from the bottom. We check your lot slope and grade when we quote, and we include drainage correction in the line items when it’s needed.
Trusted Brands We Service in San Dimas
We install and service doors from Therma-Tru, PGT, ViewLux, and Mr-Glass, and we also offer our Window Installation in San Dimas. Because we stock common door components and have direct supply lines to all four brands, San Dimas homeowners aren’t waiting weeks on a reorder. A Therma-Tru entry door with impact-rated glass, for example, is a standard order for us, not a special request. If you have an existing PGT or Mr-Glass unit, we service it under the same 365-Day Done Right Promise we put on every new installation.
Common Door Replacement Problems We See in San Dimas Homes
- Sun-warped aluminum sliders. The 1960s and 70s tracts along Foothill Boulevard and San Dimas Canyon Road are full of original aluminum sliders that have baked in valley heat for fifty years. They bind, the rollers fail, and the frames lose their seal, which is exactly when resale inspectors flag them for egress compliance.
- Permit stalls on hillside and WUI lots. A county-style permit package with foothill overlay review gets submitted without the required wildfire-zone door schedule, stalling the job for three to six weeks. We submit the schedule with the initial application, not after the first reviewer comment.
- Wrong-size orders on non-standard openings. A stock 6’8″ slider is ordered for a 1960s tract opening, fails rough-in measurement, and leaves the homeowner with a boarded-up wall during reorder. We field-measure every opening before ordering, which is the only way to keep a San Dimas door project on schedule.
- Threshold failures on downslope lots. A new inswing installed without a raised sill or drain mat traps sheet flow from a Santa Ana rain event against the threshold. On the foothill side of town, this is a five-figure water-damage problem waiting to happen, so we address it in the quote, not after the first storm.
Pricing for Door Replacement in San Dimas, CA
Here are the ranges we quote in San Dimas today. Standard entry door with dual-pane glass: $1,400 to $2,900, installed. Impact-rated PGT or Therma-Tru entry door: $3,200 to $6,400, depending on frame condition and permit schedule. Sliding patio door with dual-pane glass: $1,800 to $3,800. Door frame repair, including new sill pan and sealing: $320 to $750. Full reframe and rough-opening correction: $900 to $1,800. Your written estimate from Sean Mackey’s team includes the permit line, the door unit, hardware, labor, and any drainage correction. Call (350) 305-4609 and we’ll put the number in writing before any work starts.
We Also Serve Cities Near San Dimas
Our crews serve the communities around San Dimas daily, including Glendora and Azusa to the north, Diamond Bar to the south, and West Covina to the west. If you’re in a neighboring city and want the same written-price guarantee and 365-Day Done Right Promise, call (350) 305-4609 and we’ll coordinate a visit from the same team that works San Dimas every week.
Serving San Dimas, CA - Our Local Coverage Area
We’re based in the San Dimas 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 San Dimas
Yes. Hillside and wildland-urban interface lots in San Dimas require a permit that addresses windborne-debris impact ratings and ember-intrusion sealing on exterior doors. We include the permit package and the required door schedule in your written quote, and we submit it before ordering your unit, which is how we keep your job from stalling at the county. Call (350) 305-4609 and we’ll tell you exactly what your street triggers.
They fail because the original units no longer meet current egress requirements for clear opening width and height, and because decades of sun and Santa Ana wind have warped the frames so the panels bind. We replace them with dual-pane or impact-rated sliders that clear egress, and we document the change for your resale file. Call (350) 305-4609 for a free estimate on any slider a resale inspector has flagged.
We price it as a single scoped quote that includes the door unit, the permit package, and any access work required to work around septic and well setbacks on your lot. We walk the property before we quote, mark the setbacks, and tell you what equipment access and material staging will cost. The goal is one number in writing, not three surprises. Call (350) 305-4609 to schedule that walkthrough.
Yes. We install Therma-Tru entry systems with impact-rated glass on detached ADUs and shop buildings throughout San Dimas. We handle the permit schedule, the fire-rated requirements where the ADU is close to a property line, and the custom sizing that older outbuildings usually need. Call (350) 305-4609 and we’ll quote the door, the glazing, and the permit in one written estimate.
The most common repair after Santa Ana cycles is a jamb that has pulled away from the studs and a sill pan that no longer sheds water. We refasten or reframe the jamb, replace the pan, and re-seal the rough opening so the door operates clean and the threshold stays dry. Call (350) 305-4609 for a free estimate on any frame the wind has worked loose.
Written by Sean Mackey, Owner at Juniper Windows West Covina, serving San Dimas and the surrounding foothill communities.
Six Reasons Homeowners Choose Juniper Windows West Covina
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.