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

Fast, Reliable Door Replacement Across Ontario

Door replacement in Ontario, CA typically runs $1,200 – $3,800 for a standard entry door and $800 – $2,500 for an interior door, fully installed. The final number hinges on what we find when the old door comes off, the material you pick, and whether the jamb and threshold framing are still sound. We’re the Door Replacement team at Juniper Windows & Doors. Call (682) 281-2168 for a written line-item quote before any work begins.

Call (682) 281-2168

Ontario homeowners deal with a climate that punishes doors. Triple-digit summer days followed by 30-degree winter nights cause wood to expand, contract, and eventually rot. That’s why we scope every Ontario job with a full inspection of the jamb, threshold, and exterior trim, not just the slab. You need a contractor who knows what a 1980s Ontario infill home actually looks like behind that trim. That’s us.

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

We’ve replaced doors all over Ontario, from the older neighborhoods off Euclid Avenue to newer builds near the 60. Homeowners keep calling us back because we put the price in writing before a single screw turns. That’s not a gimmick. It’s the 365-Day Done Right Promise, and it covers parts and labor for a full year, in writing. If something isn’t right, we fix it, no invoice, no argument.

Our Door Replacement in Ontario crews are background-checked and uniformed, so you know exactly who’s walking up your driveway. Every job gets a live arrival time you can track on your phone, before-and-after photos, and a digital invoice you can pay from a link. Sean Mackey leads our team, and he’s built the company around one rule: the number we quote is the number you pay. No estimate that morphs into a surprise invoice at the door.

Calls are answered by a live person, 24/7. When you call (682) 281-2168, you get a human, not a voicemail queue. For Ontario homeowners who book everything on their phone and want the same transparency from a contractor that they get from a rideshare app, that matters.

Door Installers in Ontario

Door Installers in Ontario do more than hang a slab. The work starts with removing the existing door, inspecting the rough opening, repairing or replacing any rotted jamb or threshold framing, setting the new door level and square, insulating around the frame, installing new exterior trim, and sealing against wind and water. A dishonest quote skips the framing unknowns. We don’t.

Framing and Flashing Repairs

Most panel-only quotes assume the rough opening is clean. In Ontario, that’s rarely true. We regularly pull doors on 1980s infill homes and find the jamb rotted through. Sistering in new framing and flashing before the new slab goes in adds real labor, but skipping it means your new door leaks by the first winter rain.

Why Ontario Homes Need More Than a Panel Swap

San Bernardino County’s swing from inland heat to overnight frost breaks down wood fast. A fiberglass slab with low-E glass, like a Therma-Tru, handles that range without warping. Pair it with new weatherstripping and a composite threshold, and you stop chasing drafts. We see the difference on Ontario homes every summer.

Door Contractors in Ontario

Door Contractors in Ontario should give you a fixed price and a named warranty before they touch your house. Juniper does exactly that. We don’t do vague verbal estimates. We walk the job, measure the opening, check for square, look at the jamb, and hand you a written quote with every line item called out, from reframing labor to the cost of a PGT in Ontario impact-rated slab. Then we honor it.

How We Price a Door Replacement

We quote labor, materials, trim, flashing, insulation, and haul-away separately. If the jamb rots on removal, we stop, photograph it, and bring you the change in writing before doing any extra work. That’s the difference between a contractor and a door company. We’re the latter.

Ontario Permits and Inspections

Many Ontario door projects need a permit from San Bernardino County, especially when the rough opening changes or the door is in a wall facing a street setback. We pull the permits we need, pass the inspection, and keep the paperwork straight, so you don’t inherit a code violation when you sell.

Trusted Brands We Service in Ontario

Juniper keeps access to eight product lines, so a door for an Ontario house is never a compromise. We regularly install Therma-Tru fiberglass slabs for their straight frame and low-E glass, PGT impact-rated doors for homes that want wind and debris resistance, and ViewLux for homeowners who want a modern look with clean sightlines. Parts for these brands are stocked locally and pulled fast, so a warranty part keeps your schedule instead of stalling it.

Juniper is a hardy evergreen built to handle sun, wind, and cold. That’s a fitting name for what exterior doors in Ontario have to endure.

Common Door Replacement Problems We See in Ontario Homes

• Rotted jamb and threshold framing. Ontario’s dry summers hide rot that reveals itself when we pull the old slab. Reframing labor and flashing add to the panel-only quote, and a contractor who doesn’t flag that upfront isn’t doing you a favor.
• Out-of-square rough openings. 1980s Ontario infill homes shifted over four decades. A new slab that assumes the opening is square will bind. Shimming and new casing are standard on these jobs, not optional.
• Reused exterior trim and caulk. Some installers reuse old trim to save time. In Ontario, with winter rains and temperature swings, that lets water behind a new fiberglass or steel slab and risks the warranty. New trim and sealant should be in the bid.
• Drafts from original builder-grade doors. Many Ontario homes still have their original 1980s door. A fiberglass slab with a modern weather seal and composite threshold stops the draft and cuts the cooling load noticeably. On a Rancho Cucamonga-area job just off Foothill Boulevard, our crew removed a failed wood jamb, sistered in new framing, and hung a Therma-Tru fiberglass slab with low-E glass. The homeowner’s cooling bill dropped the first summer.

Pricing for Door Replacement in Ontario, CA

We Also Serve Cities Near Ontario

Our crews work throughout the Inland Empire, including Ontario, and regularly run jobs in Montclair, Claremont, Upland, and Rancho Cucamonga. The drive from our Riverside-San Bernardino office is short, so our arrival windows stay tight and our photo updates come fast. Wherever you are in the Ontario area, the written-price and 365-Day Done Right Promise rules stay the same.

FAQs About Door Replacement in Ontario