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Fast, Reliable Door Installation Across San Mateo
Door installation in San Mateo runs $900-$4,200 for a standard entry system, with full-frame replacement of a rusted steel casement on a pre-WWII bungalow typically landing between $2,800 and $5,600. That’s the honest range for the 94401 housing stock we see every week. Most jobs are done in a single visit by a background-checked, uniformed crew that knows the difference between a tight downtown lot and a wide Hillsborough-adjacent parcel. If you’re weighing whether to patch a rotted jamb or replace the whole frame, call (888) 635-0804 and we’ll give you a written line-item quote before any work starts.
We’re TruePane Windows & Doors, and we’ve been setting doors square in San Mateo long enough to know that salt fog and 1930s framing don’t forgive shortcuts. The estimate is free. The work comes with our Done Right Promise and both manufacturer warranty layers registered in writing before the truck leaves your driveway.
Why TruePane Windows & Doors Is San Mateo’s Preferred Door Installation Company
San Mateo homeowners don’t call a door company because they want a door. They call because the old one sticks in July, lets the marine layer draft through the sidelights, or has a steel frame that rusted shut sometime during the Obama administration. We know that. Our crews work the 94401 ZIP week in and week out, and they’ve handled more original 1930s steel casement extractions than any franchise outfit on the Peninsula. The difference is craft. The difference is Dale Kessler, our founder, who still keeps the same rule on the whiteboard he started with: if the pane is not true, the job is not done.
We’re not the cheapest bid in the room. We’re the last call you’ll need to make. TruePane has served local communities since 2008 through a craft tradition, not a franchise playbook. The Done Right Promise means if something isn’t right after we leave, we fix it. No paperwork fights. No arguing. San Mateo customers know that, and they tell their neighbors.
We answer the phone with a live person 24 hours a day, 7 days a week. Not a voicemail tree. Not a callback form. A person who knows San Mateo and can tell you when a crew can be at your door.
Our Door Installation Services in San Mateo
Door work in San Mateo splits into a few clear categories, and each one behaves differently on a pre-WWII lot near the salt-fog corridor. Here’s what we handle most days.
Entry & Swing Doors
Entry doors in San Mateo take a beating from the bay air. Marine-layer moisture creeps into the jamb and threshold, rots the wood, and the whole frame sags out of square. On a dense lot near downtown, a sagging entry door isn’t just an annoyance, it’s a security gap. We replace the full frame, flash all four sides with butyl tape, and set a door that swings clean in every season. A typical entry door replacement in San Mateo runs $1,800-$4,200 depending on the manufacturer line and whether we’re cutting out a rusted steel casement or working with a cleaner rough opening.

Arched & Custom Doors
San Mateo’s older blocks are full of arched openings that don’t fit a stock door. Try buying a rectangular prehung unit for a 1931 Spanish Colonial Revival entry and you’ll find out fast. We measure every opening twice, order custom units to match the radius on site, and set them square in the original masonry or plaster surround. If you’ve got an arched door that’s bowed out of true or a custom sidelight that’s let the fog in for forty years, we can either restore it or rebuild the rough opening entirely.

Storm Doors
A storm door is the practical answer for San Mateo’s summer marine layer and winter Bay breezes. It buys you an extra air barrier on a west-facing entry without ripping out the original door. We set storm doors with proper drainage and a threshold that won’t trap moisture against the main jamb. On a 1920s bungalow with an original wood door you want to keep, a storm door is the smart money move. Plan on $600-$1,600 installed for a quality unit with compression weatherstripping.

Double & French Doors
Double doors on a San Mateo rancher or Spanish Revival need both leaves to meet perfectly, and on a tight lot, any out-of-square condition shows up immediately. We rebuild the rough opening when the house has settled, which it has, and set both doors with matching reveals. Salty air loves French door thresholds, so we flash them thoroughly and use composite jambs where the opening is exposed to the elements. This work typically lands between $2,600 and $6,800 depending on size and manufacturer.

Bifold & Folding Doors
Bifold and multi-slide folding doors are the right call when you want the whole wall to open onto a San Mateo patio. The engineering matters more here than on any other door type. Track alignment, header load, and drainage have to be right or the door will bind within a year. We set these with a focus on the marine layer, using stainless hardware and marine-grade seals where the opening faces the Bay.

Pivot Doors
Pivot doors are heavy. On a mid-century San Mateo ranch with a wide entry, a pivot system can look right and swing better than a hinged door. But the hinge point takes all the load, and a badly set pivot door will sag. We set pivot doors with the correct top and bottom hardware for the weight, and we make sure the rough opening carries the load through the header, not the plaster. It’s a door, not a decoration.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Mateo
We’re an authorized installer for more than a dozen manufacturer lines, and for San Mateo’s housing vintage we regularly set doors from, ES Windows, and ECO Window Systems. Each line has strengths for the local climate. Marvin fiberglass entry systems hold up well against salt fog, ES Windows makes a good steel-look casement if you’re replacing a 1930s original but want modern thermal performance, and ECO Window Systems offers solid value on storm and secondary doors. We stock common parts locally and quote manufacturer lines side by side on paper, so you see exactly what you’re paying for before you decide.
Common Door Installation Problems We See in San Mateo Homes
- Rusted steel casement frames from the 1930s-40s. Older blocks near downtown San Mateo commonly have original steel casement doors that have rusted shut or bowed in their masonry openings. This rarely shows up in newer Peninsula suburbs. We cut the rusted frame out without cracking the original plaster surrounds, or convert the opening entirely.
- Marine-layer moisture rotting wood jambs and thresholds. The bay-adjacent fog keeps sills damp for weeks during the summer marine layer season. Wood door jambs rot, the frame sags, and the door stops latching. Full-frame replacement with proper flashing is the only lasting fix.
- Sagging doors on settled 1920s-50s foundations. Many San Mateo homes sit on foundations that have moved over eight or nine decades. The rough opening is no longer square. We rebuild it square before setting a new door, because shimming a prehung unit into a parallelogram never lasts.
- Party-wall access on dense cottage-court lots. On a tight lot with shared walls, staging materials and noise become neighbor issues fast. We handle party-wall notice, keep the site clean at the end of every day, and work within San Mateo’s noise ordinance hours so the job doesn’t turn into a stop-work order.
Pricing for Door Installation in San Mateo, CA
Here’s what we quote for the San Mateo market, as of this year’s work:
- Entry door replacement (standard prehung): $1,800-$4,200
- Full-frame replacement of original steel casement: $2,800-$5,600
- Storm door with compression weatherstripping: $600-$1,600
- Double or French doors, both leaves rebuilt square: $2,600-$6,800
- Arched or fully custom entry system: $3,200-$9,000
These numbers move based on the rough opening condition, the manufacturer line, and whether we’re dealing with a party wall or an overlay district requiring extra permit steps. We give you a fixed price in writing before work starts. No change orders on the back end. Call (888) 635-0804 for a free estimate and we’ll measure the opening, check the condition of the frame, and quote the job in person.
We Also Serve Cities Near San Mateo
If you’re a few minutes north or south, we keep crews running through Burlingame, Belmont, Millbrae, and San Carlos. The same local knowledge applies, because the marine layer and the pre-WWII housing stock don’t stop at the San Mateo city line. Visit our Door Installation page to see what the work covers, or read more about Door Installation in San Mateo for local specifics. Same crew. Same standard.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 - Door Installation in San Mateo
Because the original 1930s-40s steel frame has rusted shut or bowed in its masonry opening. An insert retrofit assumes the existing frame is sound. In San Mateo’s 94401 ZIP, that’s often not true. Full-frame replacement removes the corroded steel, allows us to flash the rough opening with butyl tape against salt fog, and sets a new door square in a rebuilt opening. That’s the only way to solve the problem permanently. Call (888) 635-0804 and we’ll assess your frame before you commit.
The fog keeps wood surfaces damp for extended stretches during the summer marine layer season, which accelerates rot in jambs and thresholds. A wood frame that sits wet for weeks every year will sag and fail far faster than the same door in Redwood City or San Jose. We use composite jambs and marine-grade flashing where the opening is exposed to persistent moisture. It’s the practical answer for a bay-adjacent lot.
Yes, in most cases. If the door opening touches a shared wall, you should notify the adjoining owner before work begins. San Mateo’s building officials take neighbor complaints seriously, and a stop-work order is the fastest way to turn a one-day door job into a week-long headache. We handle party-wall notice for you, including dates and scope of work, so the job stays moving.
San Mateo generally restricts construction noise to daytime hours, typically starting around 8:00 AM on weekdays, with earlier limits on weekends and holidays. On a dense lot near downtown, cutting out a steel casement frame is loud work. We schedule that work in the allowed window, keep staging tight to the parkway, and clean the site before we leave each day. It’s how we keep the neighbors onside.
Yes, but impact-rated glazing addresses wind and impact, not corrosion. For salt-fog environments, the bigger factor is the frame material and flashing. Fiberglass and composite frames hold up better than steel against marine-layer moisture. We can set an impact-rated door in a corrosion-resistant frame and flash it properly. That combination gives you the coastal performance you need without a rust problem in five years. Call (888) 635-0804 for a specific recommendation on your opening.
Working on a Tight San Mateo Lot
Most of San Mateo’s 94401 homes weren’t built with room for a staging yard. The driveway holds one car, maybe two if it’s a ranchor the garage faces the alley. When we replace a rusted steel casement entry on a Spanish Colonial Revival bungalow near downtown, we stage materials on the narrow parkway and keep the walkway clear for the mail carrier. We protect the stucco party wall with temporary screening, because a cutting wheel throws sparks and the neighbor’s stucco isn’t ours to scar. We coordinate with you on parking, because our van needs to be close enough to run the saw and far enough that we’re not blocking the neighbor’s car. This affects the quote. If we need a permit runner for an overlay-district review or a party-wall notice that goes through the HOA of a cottage court, that time is in the line item. We don’t bury it and then surprise you on the back end.
On a recent job near downtown, we replaced a rusted-shut 1930s steel casement entry door and two adjacent side windows on a Spanish Colonial Revival bungalow. We staged materials on the narrow parkway, protected the stucco party wall with temporary screening, and cut out the corroded frame without cracking the original plaster surrounds. Then we set a new Marvin fiberglass entry system with low-E glass and argon fill into a fusion-welded frame, flashing all four sides with butyl tape to keep the pervasive salt fog out of the rough opening. That’s what a San Mateo door install actually looks like. It’s not an insert job. It’s surgery on an eighty-year-old house.
Permits, Overlay Districts, and Doing It Right
San Mateo has historic resource reviews in certain neighborhoods, and if your home is on the city’s historic inventory or sits in an overlay district, a door replacement can require a discretionary review. We don’t guess at this. We check the address against the city’s requirements before we quote, and if a permit is needed, we pull it. The permit protects you. It also means an inspector verifies the work meets California Title 24 U-factor and SHGC thresholds for coastal climate zones. If a contractor tells you to skip the permit on a full-frame replacement, that’s a red flag. The work still has to be done right, and the city will check. We’d rather do it right the first time.
Call TruePane for Door Installation in San Mateo
If your door sticks in July, lets the fog through in August, or has a steel frame that’s rusted shut, we can fix it. Call (888) 635-0804 for a free estimate. We’ll measure the opening, check the frame condition, and give you a written line-item quote before any work starts. The ask is the estimate, not the job. A live person answers the phone, any hour, any day. And if the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Mateo and the wider Bay Area with years of craft tradition.



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