Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Hillsborough, CA
Juniper Windows & Doors handles window replacement, window installation, and door replacement for Hillsborough homeowners who expect a written price before any work begins. Hillsborough is not a tract-home town. The housing stock runs large, custom, and older, with a mix of mid-century ranch styles and significant estate properties set back from winding, tree-lined roads. That means standard off-the-shelf sizing rarely fits, and crews need to plan for long driveways, mature landscaping, and homes where every opening matters architecturally. Call (682) 281-2168 and we’ll walk you through what your project actually needs.
Why Hillsborough Homes Are Different
Hillsborough sits on the San Francisco Peninsula, where summer fog and winter rain push moisture against window frames and door thresholds for months at a time. Wood frames that look fine from the street are often soft at the sills once we pull the trim. That is the single most common finding on our Hillsborough walkthroughs, and it changes scope and price. We write the full number down before we start, so a rotted sill never becomes a surprise change order.
The terrain matters too. Many Hillsborough properties are built into slopes, which means some elevations catch full afternoon sun while others sit in shade and damp. We choose glass packages accordingly, because a west-facing wall on a hillside lot takes a different U-factor than a north-facing one tucked under oaks. And because so many Hillsborough homes are custom, we often order exact-size replacement windows rather than pulling from stock. The product lines we work with, including PGT and Therma-Tru, support that without forcing a compromise in sightlines or finish.
Hillsborough also has strict design review for visible exterior changes. Before any permit is pulled, homeowners often need architectural approval for new window styles or door materials. We help you understand what the town will ask for, and we plan the job so the work meets both the letter of the code and the look of the house.
Our Main Hillsborough Services
Most Hillsborough homeowners reach out for one of three things, and each has its own dedicated page with local pricing and timelines. Here is what to expect on each.
Window Replacement in Hillsborough
Replacement in Hillsborough usually means pulling an old wood or aluminum frame and fitting a new unit into the same opening, often with custom sizing to match the original sightlines. On older Hillsborough homes we frequently find the original rough openings are not square, which is exactly why a written measurement and a locked price matter. The right install accounts for the house the way it is, not the way the blueprint says it should be. See Window Replacement in Hillsborough for local cost ranges by window type.

Window Installation in Hillsborough
New-construction and addition work in Hillsborough means installing windows into fresh rough openings, usually as part of a remodel or a new build. The job requires close coordination with the framing crew, the waterproofing, and the town’s inspection schedule. We install to the opening as built, flashing for our wet winters, and we document every step with photos you can see from your phone. Window Installation in Hillsborough covers what new-construction pricing looks like on the Peninsula.

Door Replacement in Hillsborough
Front doors in Hillsborough carry a lot of weight, literally and architecturally. Many homes have oversized entries, custom sidelights, or solid wood doors that have been swelling and sticking in the damp for decades. Replacing them correctly often means rebuilding the jamb, not just swapping the slab. Fiberglass and steel options from Therma-Tru hold up better to wet winters than the originals, and we can match the proportions so the entry still feels right for the house. Read Door Replacement in Hillsborough for a full breakdown.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Hillsborough
We install and service windows and doors from PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. Parts for common PGT and Therma-Tru lines are stocked locally, which shortens turnaround when a piece needs replacing. See our brands for the full line-by-line detail.
Pricing for Window Company in Hillsborough, CA
These are the ranges we typically quote for Hillsborough work. Every job gets a written, line-item price before anything starts, and that number does not move unless you change the scope.
| Service | Typical range in Hillsborough |
|---|---|
| Window replacement (standard vinyl, per window) | $450 – $1,100 |
| Window replacement (impact-rated, per window) | $900 – $2,200 |
| Window replacement (wood-clad or custom, per window) | $1,400 – $3,200 |
| Full-home window replacement (10 – 15 windows, mid-range) | $15,000 – $34,000 |
| New-construction window installation (per window) | $350 – $850 |
| Exterior door replacement (standard fiberglass or steel) | $1,800 – $4,200 |
| Exterior door replacement (custom or oversized entry) | $4,500 – $11,000 |
| Patio or sliding door replacement | $2,600 – $6,500 |
| Interior door replacement (per door, basic) | $350 – $800 |
Hillsborough prices run toward the upper end because of the custom sizing, the design review process, and the condition of the original frames we uncover. Our quote accounts for those local realities up front. If we find rot or out-of-square openings, the number already covers the fix.
Neighborhoods We Serve in Hillsborough
We work across the whole town, from the estate lots near the Burlingame border to the quieter streets off Hayne Road. Response time for a Hillsborough visit is usually one to two business days for an estimate.
- Lower Hillsborough, near the town center
- The hillside streets off Hayne Road
- Areas bordering Burlingame along El Camino
- The larger estate parcels in the western and southern parts of town
Service Area – Cities Near Hillsborough
Juniper also serves homeowners up and down the Peninsula and across the Bay Area. If you are outside Hillsborough, you can find city-specific pages for San Francisco, CA, San Jose, CA, Los Angeles, CA, and San Diego, CA.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 Window Company in Hillsborough
We can usually schedule an estimate in Hillsborough within one to two business days. Dispatch for the Peninsula runs through our San Francisco Bay Area office, and we coordinate visits around your availability, not a four-hour arrival window. Call (682) 281-2168 to set a time.
Most exterior window and door replacements in Hillsborough do require a permit, and visible changes often need design review approval first. We help you understand what the town will ask for and build the timeline around it. The estimate includes the scope we expect the permit to cover.
No. The price we write before the project starts is the price you pay, unless you ask us to change the scope. That is the entire point of the way Juniper works. If we find hidden rot or a framing issue, we document it, explain it, and give you a written addendum to approve before any extra work happens. Call (682) 281-2168 for a free estimate and a number you can plan around.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hillsborough Customers Say
"Front door looks great and shuts well. The threshold is sealed well and the lock lines up with the strike."
- Rory F."Quote came in the app with options for glass. Easy to compare."
- Vera L."Door replacement. Installer texted when on his way and finished by lunch. Tight and clean."
- Neil B.










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