Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across Altadena
Windows and doors in Altadena are not a one-size-fits-all job, especially after the Eaton Fire changed the rules for most of this town. Every installation or replacement in the burn zone now has to meet California’s Very High Fire Hazard Severity Zone codes, and that is a standard most national installers do not understand when they quote over the phone. Barrett & Sons Construction has been doing this work since 1998, and Tom Barrett’s sons run the crews that show up at your door. If you have questions about whether your rebuild lot is ready for window installation, call us at (877) 610-1318 and ask for Tom directly.
Why Barrett & Sons Construction Is Altadena’s Preferred Windows & Doors Company
Altadena is an unincorporated community, which means your permits run through LA County’s Department of Public Works, not a city hall, and that changes how window and door projects get sequenced. We know the County’s plan check rhythm, and we know which projects get held up waiting on geotechnical sign-off before glass can go in. Most contractors learn that the hard way on their first Altadena rebuild. We learned it on the first one we did, and we built our process around it.
Tom Barrett publishes his name, his address, and his license number. You can look it up before you sign anything, and we encourage you to. The same crew members who walk your property are the same ones who will install your windows, not a rotating cast of subcontractors. Ask anyone on your street, or look up the license number yourself. We have been at this for over 29 years, and a live person answers our phone 24 hours a day, seven days a week.
Every window or door scope we write includes permits pulled and inspections signed. Every price change arrives as a written change order before work happens. That is not a promise we make in marketing copy. It is written on every contract we sign in Altadena.
Our Windows & Doors Services in Altadena
Here is what we handle most often in Altadena, from Lake Avenue to the neighborhoods up against the San Gabriel mountain front.
Window Installation
New window installation in Altadena means more than swapping glass. In the rebuild zone, your openings need dual-pane tempered glass and ember-resistant frames to pass plan check. In older homes that survived the fire, we often find original wood framing that needs to be rebuilt before a new window can seat properly. We write that framing work into the scope before we start, not as a surprise after the wall is open.

Door Installation
Doors in Altadena’s 1920s and 1950s homes rarely close square anymore, especially if the house took radiant heat during the Eaton Fire. We install exterior and interior doors, but we also rebuild the jambs and headers when the framing has shifted. A door that does not close is usually a framing issue, and we fix the cause, not just the symptom.

Window Replacement
Window replacement in Altadena runs $4,500 to $15,000 for a typical single-story home, depending on the number of openings and whether we are pulling out original wood sashes or newer aluminum frames. Homes in the 91001 and 91003 ZIP codes that survived the fire often have cracked glass and failed seals from heat exposure. We replace those before winter rains find the leaks.

Impact Windows & Doors
Impact Windows & Doors in Altadena carry a specific meaning now. This is not coastal hurricane glass. It is WUI-rated glazing built to resist ember intrusion and radiant heat during Santa Ana and Diablo wind events. Impact window installation in Altadena typically runs $8,000 to $25,000. We install PGT and CGI units, and we have worked with more than a few local plan checkers who will not sign off on anything less.

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.
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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 Altadena
We install and service Simonton, Ply Gem, and PGT windows and doors for Altadena customers. These are brands you can look up, not mystery units off a van. We keep local parts stock for common models here, which means faster turnaround when a sash needs a new balance or a French door needs new hardware. If you have a written estimate from another contractor using a brand we carry, bring it in. Our free second opinion on any written estimate applies to window and door work too.
Common Windows & Doors Problems We See in Altadena Homes
Altadena’s housing stock and fire exposure create a specific set of failure patterns. Here are the four we see most often.
- Original wood windows that fail plan check. Homes built from the 1920s through the 1950s, especially Craftsman bungalows and Spanish Colonial Revivals, used wood sash windows that meet almost none of the current VHFHSZ requirements for ember resistance, glazing rating, or self-latching hardware. Rebuild plans that try to repair in place get bounced at plan check until replaced with WUI-compliant units.
- Cracked glass and warped frames on fire survivors. Homes that survived the Eaton Fire often have cracked glass, warped frames, and failing seals from radiant heat exposure. Owners focus on the roof and siding, so window damage goes unaddressed until winter rains reveal leaks around the sash.
- Soil testing delays stalling window orders. Post-fire soil testing is a Los Angeles County requirement before structural work can proceed on contaminated lots. If your general contractor does not sequence the permits, your windows arrive and sit in the garage while the County waits on geotechnical sign-off.
- Doors that no longer close square. Fire suppression water saturation shifted alluvial-fan soils under many older foundations, and doors that were square before the fire now bind against their frames. This is usually a foundation or framing issue, not a hinge adjustment, and it needs to be diagnosed correctly before you order a new door.
Pricing for Windows & Doors in Altadena, CA
Here is what you can expect to pay for windows and doors in Altadena, from a basic replacement to a full rebuild zone install.
| Service | Typical Altadena Range |
|---|---|
| Window Replacement | $4,500-$15,000 |
| Impact Window Installation | $8,000-$25,000 |
| Custom Windows & Doors | $8,000-$25,000 |
What moves the number? The number of openings, whether the home is in the VHFHSZ and requires impact-rated glazing, whether framing repairs are needed, and how many change orders get written once we open the wall. We never hide that cost. An allowance that is not on paper is a surprise waiting for a date, and we do not do surprises. Call (877) 610-1318 for a free estimate on your Altadena project.
We Also Serve Cities Near Altadena
Most of our Altadena work comes from referrals in Pasadena, La Cañada Flintridge, East Pasadena, and San Marino. If you live just over the 210 in one of those communities, our Windows & Doors team serves those areas too, and the pricing structure is the same. You can learn more about our broader coverage on our Windows & Doors in Altadena page.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena 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 - Windows & Doors in Altadena
Window and door installation on an Altadena rebuild lot is covered under the main building permit, not a separate permit, but the main permit cannot move forward until LA County’s Department of Public Works clears the soil testing and geotechnical requirements. That means your window and door work is sequenced behind site prep, and if your contractor does not understand that, your windows get ordered before the lot is cleared to build. We sequence it correctly from day one. Call (877) 610-1318 for a free estimate and we will walk you through the exact permit path for your lot.
It is old age plus fire damage. Radiant heat from the Eaton Fire warped wood frames and broke seals on thousands of surviving Altadena homes, even ones that never had an ember land on the roof. Doors that no longer close square are usually a sign that the framing or foundation shifted, not that the hinge needs oil. A house on alluvial-fan soils that absorbed fire suppression water is especially prone to it. We will inspect the openings and tell you what is structural and what is just a window replacement. Free estimates always.
No. In the burn zone, which covers much of Altadena’s Very High Fire Hazard Severity Zone, every new window or door must meet WUI codes including dual-pane tempered glass and ember-resistant frames. Some plan checkers will also require self-latching hardware on doors and specific glazing ratings on windows. We install PGT and CGI units that meet those standards, and we have passed enough LA County inspections to know exactly what gets flagged. Call (877) 610-1318 and ask Tom what your specific lot will require.
Most of Altadena sits in the VHFHSZ, including neighborhoods well below the burn scar, so yes, the same WUI window and door codes generally apply throughout the 91001 and 91003 ZIP codes. Pasadena, by contrast, sits outside the highest hazard band over much of its incorporated area, so the requirements are not uniform there. If you are replacing windows in a surviving Altadena home, you should plan for WUI-compliant units regardless of whether your house was damaged.
No, and this is one of the most common mistakes we see on Altadena rebuilds. LA County will not issue structural approval until contaminated soil testing and remediation are signed off, and window and door installation counts as structural work. Ordering windows early just means they sit in storage and your warranty clock starts running before installation. We sequence the entire job so windows arrive when the openings are ready, not a month before. For an exact schedule on your lot, call (877) 610-1318.
Rebuilding Altadena Homes the Right Way
On a charred 1950s ranch lot off Lake Avenue, our crew opened a wall to replace a damaged kitchen window and found the original 2×4 framing had been compromised by both fire heat and decades of drywood termites. The window replacement scope expanded on paper with a change order: we rebuilt the load-bearing header, installed a new Simpson Strong-Tie moment frame, and set an Impact Window rated for WUI exposure before inspection sign-off. The homeowner never saw a surprise on their draw schedule. Every added line item was priced and approved in writing before we cut the first new stud.
That is how we work in Altadena. Not with promises, but with scopes in writing, allowances in writing, and change orders in writing. The permit inspector works for you, not for us, and we like it that way. If you are rebuilding after the Eaton Fire or just replacing windows in a home that survived, call (877) 610-1318. A live person answers, and Tom will give you a straight answer. Free estimates, written line-item quotes, permits pulled, and the 90-Day Done Right Promise on every job.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Altadena since our founding in 1998.







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