Window Replacement in Half Moon Bay, CA | Juniper Windows & Doors - Juniper Windows & Doors

Window Replacement in Half Moon Bay - Free In-Home Measure, Written Price

Free in-home measure and an exact written price before anything is ordered. Energy-rated units, professional installation by our own crews, and a workmanship warranty on the install.

Call to schedule your free estimate

626+
Cities Served
Free
Written Quotes
Licensed & Insured Written Quotes Free Estimates All Brands Satisfaction Guarantee
Every visit starts with

Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style

Styles & brands we work with

Single hung
Single hung
Double hung
Double hung
Horizontal roller
Horizontal roller
Casement
Casement
Bay & bow
Bay & bow
Sliding glass doors
Sliding glass doors
Entry doors
Entry doors
Impact garage doors
Impact garage doors
PGT
PGT
CGI
CGI

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Fast, Reliable Window Replacement Across Half Moon Bay

Window replacement in Half Moon Bay comes down to one thing most contractors miss: the salt. The marine layer pushes salt-laden fog over the coastal bluffs nearly every morning from May through August, and it settles on everything, window frames included. Standard aluminum with a mill finish or basic clear anodize starts pitting and chalking within three to five years here. We spec materials that survive that fog cycle, and we give you a written price before a single screw turns. Call (682) 281-2168 to schedule your free estimate, and you’ll know exactly what the job costs before we ever show up.

Call (682) 281-2168

Why Juniper Windows & Doors Is Half Moon Bay’s Preferred Window Replacement Company

Half Moon Bay homeowners call us because we talk about coastal corrosion the way a neighbor would: plainly. Sean Mackey leads the Juniper Windows & Doors team, and he’s spent years matching window systems to the specific abuse this stretch of the San Mateo coast dishes out. When a 1968 ranch in the Alsace Loraine neighborhood needs new double-hungs, we’re not guessing at what the fog did to the originals. We’ve seen it.

Every project carries our 365-Day Done Right Promise, in writing: if the work isn’t right within a full year, we make it right, parts and labor. Our technicians are background-checked and uniformed. You’ll know who’s walking through your door, and you’ll get a live arrival time you can track, before-and-after photos, and a digital invoice you can pay from your phone. No phone tag, no four-hour waiting windows. A real person answers our phones 24/7.

Window Replacement Company in Half Moon Bay

As a Window Replacement Company serving Half Moon Bay, we handle full-frame and insert replacements for homes built in every decade from the 1950s to now, with a focus on what the coastal climate actually does to each assembly. When a homeowner in Half Moon Bay needs a window replaced, the job typically involves removing the old sash and frame, inspecting the rough opening for rot or rust damage, and installing a new unit sized and spec’d for the exposure. The cost depends on whether we’re doing a simple insert into a sound frame or a full tear-out with new flashing and jamb sealing, but most projects run between $850 and $1,900 per opening for coastal-spec windows with marine-grade frames and stainless hardware.

Full-Frame Replacement for Coastal Exposures

When the existing jamb has been rust-jacked or the rough opening shows rot from years of wind-driven rain working past failed seals, an insert won’t fix the problem. We pull the entire assembly, repair or replace the opening, and install a new unit with a backer-rod-and-sealant perimeter joint instead of the old compression gasket. This is the repair that actually stops the leak.

Insert Windows That Preserve Older Trim

For 1960s and 1970s homes in Half Moon Bay where the interior trim and siding are still sound, an insert replacement keeps the original frame in place while replacing the sash and glazing with a modern sealed unit. It’s less invasive and less expensive, typically running $650 to $1,200 per opening, but it only works when the frame itself hasn’t been compromised by salt corrosion.

Window Glass Replacement in Half Moon Bay

Window Glass Replacement in Half Moon Bay is often the most cost-effective fix when the frame is still structurally sound but the glazing has failed. A fogged or clouded double-pane unit means the seal between the panes has broken, and no amount of cleaning fixes that. In Half Moon Bay, we also replace single-glazed original glass with laminated or impact-rated insulated glass, which does double duty here: it cuts down the fog-season condensation and it holds together under wind-borne debris from Pacific storms. Glass-only replacement typically runs $400 to $900 per opening depending on the size and whether you choose tempered, laminated, or impact-rated glass, where the existing frame and hardware can be reused.

Upgrading Single-Glazed Glass to Insulated Low-E

Original 1960s single-glazed windows let heat pour out during Half Moon Bay’s damp, chilly nights. Replacing the glass with a double-pane unit with a low-E coating and argon fill, while keeping the original wood or aluminum frame when it’s still solid, preserves the home’s character and cuts the draft significantly. We do this regularly for homeowners who want to keep their original double-hung look without the energy penalty.

When Glass Is Cracked or Impact-Damaged

A cracked pane on the coast is more than a cosmetic problem. Moisture gets into the crack, the next fog cycle condenses inside the unit, and within weeks you’ve got mineral staining between the panes. We replace cracked or chipped glass quickly before a small break becomes a full seal failure, and we always check the frame condition while we’re there.

Trusted Brands We Service in Half Moon Bay

Juniper Windows & Doors carries PGT, CGI, and CWS product lines because those manufacturers build windows rated for coastal high-design-pressure zones like Half Moon Bay. We also stock marine-grade anodized frames and stainless fasteners locally, so turnaround on parts doesn’t mean waiting on a truck from the Central Valley. If you’re replacing a failed PGT unit or want a CGI impact-rated window to match existing openings, we can spec and install it. This page covers the basics of our Window Replacement process if you want more detail on how we work.

Common Window Replacement Problems We See in Half Moon Bay Homes

  • Salt-pitted mill-finish aluminum frames. The daily marine fog deposits chloride on exposed aluminum, and within a few years the finish chalks white and pits. Standard clear anodize doesn’t stop it. We spec marine-grade anodized finishes with a thicker oxide layer that holds up for decades instead of seasons.
  • Rust-jacked jambs on 1960s and 1970s originals. Carbon-steel fasteners and hardware corrode inside the frame, expand, and literally push the jamb apart from the inside. By the time the window sticks or won’t lock, the hidden damage is already done. Stainless steel fasteners on the replacement prevent a repeat.
  • Failed perimeter seals letting wind-driven rain through. Winter storms off the Pacific hit these windows head-on. When the original compression gasket hardens and shrinks, water wicks past it, rots the rough opening, and shows up as drywall staining indoors months later. We see this constantly on homes along the bluff and in the Alsace Loraine neighborhood.
  • Single-glazed windows sweating through every fog cycle. Original single-pane glass chills to the outdoor temperature, and the next morning’s fog condenses on the interior surface. Puddling on the sill leads to mildew and rot. Double-pane low-E glass keeps the interior pane warm enough to avoid the condensation problem entirely.

Pricing for Window Replacement in Half Moon Bay, CA

Window replacement in Half Moon Bay runs higher than inland quotes, and the reason is material selection, not markup. A standard inland-spec vinyl insert might cost $500 to $800 per opening, but the same opening done with marine-grade anodized frames, stainless hardware, and a properly sealed perimeter joint runs $850 to $1,900. The cheap spec fails within a decade, often much sooner. Budget realistically: a full-frame replacement on a coastal-exposure wall, with rot repair and new flashing, lands between $1,600 and $2,400 per opening. Glass-only replacement sits at $400 to $900. We give every customer a written line-item price before work starts, so you’re comparing actual numbers, not vague estimates. Call (682) 281-2168 for a free estimate specific to your home.

We Also Serve Cities Near Half Moon Bay

Our crews serve Window Replacement in Half Moon Bay plus the surrounding communities: El Granada, Burlingame, Millbrae, and Belmont. Whether you’re up in the hills above El Granada or closer to the bay side in Burlingame, the same written-price guarantee and the same coastal-spec material knowledge applies.

Serving Half Moon Bay, CA - Our Local Coverage Area

We’re based in the Half Moon Bay 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 Replacement in Half Moon Bay

Why Half Moon Bay Chooses Juniper Windows & Doors

We set the standard for window replacement in Half Moon Bay.

Factory-Direct Pricing

Authorized partner pricing with no distributor markup - premium aluminum systems at wholesale-anchored rates.

Engineered to Order

Any shape, size, or specification, fabricated to your exact opening with one-on-one engineering support.

Certified Installation

Set level, plumb, and square to AAMA standards in Half Moon Bay - warranty-safe, every time.

How It Works in Half Moon Bay

Getting your window replacement handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your window replacement needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Half Moon Bay - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What Half Moon Bay Customers Say

Trusted by homeowners across Half Moon Bay and surrounding areas.

★★★★★

"Front door looks great and shuts well. The threshold is sealed well and the lock lines up with the strike."

Rory F. · Verified customer
★★★★★

"Quote came in the app with options for glass. Easy to compare."

Vera L. · Verified customer
★★★★★

"Door replacement. Installer texted when on his way and finished by lunch. Tight and clean."

Neil B. · Verified customer

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

Ready for Window Replacement in Half Moon Bay?

Call now for a free estimate - or request one below. Licensed, insured, and here with fast after-hours help in Half Moon Bay.

(682) 281-2168

Request a Free Estimate in Half Moon Bay

Tell us about your window replacement needs - we'll respond within the hour.

By clicking submit, you accept our Privacy Policy and consent to receive communications by phone, text, or email regarding your service needs, including from the affiliated professionals who may take on the job.

Prefer to text? Text Us
Areas We Serve
Call Now - 24/7 Dispatch