Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterWindows & Doors Services in Claremont, CA
If you live in Claremont, you already know how the Santa Anas find every worn seal and loose threshold in the house. A window that rattles in March becomes a whistle by October. A patio door that sticks a little in June won’t latch at all after a 70 mph gust off Mt. Baldy. TruePane Windows & Doors works on Claremont homes every week, and we answer the phone when you call: (888) 635-0804. A live person picks up, day or night. No voicemail tree, no callback form. You tell us what the window or door is doing, and we’ll tell you straight what it will take to fix it.
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.
Why Claremont Homeowners Choose TruePane Windows & Doors
We are not a franchise and we do not operate like one. TruePane was founded by Dale Kessler, a second-generation glazier who started this company in 2008 because he kept seeing the same two failures on Claremont-area jobs: out-of-true installs that voided manufacturer warranties, and homeowners left arguing with contractors who had already moved on. The founding rule on Dale’s whiteboard is simple: if the pane is not true, the job is not done. That standard governs every window and door we install, replace, or repair in Claremont.
We work regularly in the Craftsman bungalows near the Claremont Colleges and in the ranch-style tract homes north of Baseline Road. Homeowners in both areas deal with the same question: will this window or door hold up to the foothill wind we get here? Our answer is the Done Right Promise and The Keystone Standard - both manufacturer warranty layers registered in writing, with durations stated, before our truck leaves your driveway. If it is not done right in 90 days, we make it right. No paperwork fights, no fine print that covers neither. Learn more about what we stand behind on our home page.
Windows & Doors Services We Offer in Claremont
Window Installation
We install new-construction and retrofit windows sized to Claremont’s older framing - the 1920s Craftsman openings are rarely square, and we measure every opening twice before ordering. Manufacturer lines include Andersen, Pella, Marvin, and Milgard, quoted side by side on paper so you can see exactly what you are paying for.
Learn more about Window Installation in Claremont.
Door Installation
Entry doors, French doors, and pre-hung interior units installed plumb and weather-stripped against Claremont’s wind. We set thresholds so they seal tight in summer heat and still clear the jamb when the Santa Anas push on the slab.
Learn more about Door Installation in Claremont.
Window Replacement
Single-pane wood windows are common in the neighborhoods around the Colleges; we replace them with units that hold a line against 105°F summer days and keep the historic profile when design review requires it. Aluminum sliders from the 1960s and 70s are also straightforward retrofit work for our crews.
Learn more about Window Replacement in Claremont.
Impact Windows & Doors
For homes in Claremont’s Wildland-Urban Interface fire zones north of Baseline, impact-rated and fire-resistance-rated glazing is often a permit requirement, not an upgrade. We specify tempered glass and rated assemblies that pass the desk at Claremont’s building department the first time.
We install Impact Windows & Doors in Claremont from PGT and CGI, among other manufacturers.
Energy-Efficient Windows
Energy-Efficient Windows in Claremont with solar-control Low-E glass are one of the fastest-returning upgrades you can put in a house. We quote Low-E configurations with visible transmittance ratings spelled out, so you can weigh heat rejection against daylight in each room.
Sliding & Patio Doors
We replace old aluminum sliders with Sliding & Patio Doors - Claremont homeowners can count on: modern units that track smoothly and seal at all four corners. Most patio door replacements are completed in a single visit.
Glass Railing Systems
For decks and balconies facing the mountains, we install Glass Railing Systems - Claremont homeowners trust, engineered for wind load and code-compliant guarding. ES Windows is one of the railing lines we carry and stand behind.
Custom Windows & Doors
When an off-the-shelf unit will not fit a 1930s Spanish Colonial arched opening, we build custom. We measure, order, and install custom windows and doors that respect the original proportions - and register the warranty in writing before the job closes.
Neighborhoods We Serve in Claremont
Our Claremont crews work throughout the 91711 zip code. Typical response for an estimate is the same day or next morning, depending on when you call.
- The Claremont Village - older homes, historic character, tight lots
- Colleges area - 1920s-1940s Craftsman and Spanish Colonial Revival homes
- North of Baseline Road - WUI fire-zone parcels and mountain-wind exposure
- Claraboya - 1960s-1980s ranch-style homes
- Towne Ranch - mid-century tract homes, aluminum slider replacements
Why Claremont’s Climate & Housing Affect Windows & Doors
Claremont sits at the base of Mt. San Antonio, and the Santa Ana winds that funnel down the foothills here hit harder than anything you will feel in flat valley cities a few miles west. Gusts over 60 mph are common in the fall. That wind works on window seals, door weatherstripping, and frame anchoring in a way that shows up years later as fogged glass, bowed frames, and doors that will not latch. Summer is the other half of it: July and August highs frequently pass 105°F, and a west-facing window without Low-E coating turns a dining room into an oven by 4 p.m. The right glass spec here is not a generic one.
Then there is the housing stock. The neighborhoods surrounding the Claremont Colleges are dense with 1920s-1940s Craftsman bungalows and Spanish Colonial Revival homes, most still wearing their original single-pane wood windows. Those homes fall under the city’s design-review standards, which limit what replacement profiles and materials can be approved. Farther out, 1960s-1980s ranch tract homes offer simpler retrofits, though plenty still have aluminum single-pane sliders original to construction. And for any home north of Baseline Road, Claremont’s building department frequently flags window and door permits for Wildland-Urban Interface verification - meaning fire-rated assemblies, tempered glass, non-combustible frame options. A contractor who only does work in Pomona or Upland may never have seen that conversation at the permit desk. We have. We prepare for it on every Claremont estimate.
Pricing for Windows & Doors in Claremont
Every job is quoted in writing before any work begins. These are honest ranges for the Claremont market:
- Window replacement (standard double-hung, retrofit): $700-$1,300 per window installed
- Impact window (WUI zone, fire-rated): $1,200-$2,400 per window installed
- Entry door replacement (standard steel or fiberglass): $1,800-$4,500 installed
- Sliding patio door replacement: $2,200-$6,000 installed
- Custom window or door (arched, oversized, or historic-profile): $2,500-$9,000 or more, quoted per opening
We offer a permanent 5% discount for seniors and veterans, a $50 discount on any repair over $250, and an maintenance check for windows and doors that are sticking, leaking, or whistling. You will see every line item before you sign, and the bill will not surprise you later. Call (888) 635-0804 for a free estimate.
Service Area - Cities Near Claremont
TruePane crews serve Claremont and the surrounding foothill communities. We also work regularly in Montclair, La Verne, Upland, and Ontario. Dispatch and scheduling are coordinated from our Los Angeles office; the technicians on your street are local to this area.
Serving Claremont, CA - Our Local Coverage Area
We’re based in the Claremont 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 Windows & Doors in Claremont
Window replacement in Claremont typically runs $700-$1,300 per window for a standard double-hung retrofit, with impact-rated units in WUI zones north of Baseline running $1,200-$2,400 per window. Every opening is measured and quoted in writing before work begins, so you will have a fixed number before you commit. Call (888) 635-0804 for an exact quote - estimates are free.
Yes, window and door replacements in Claremont generally require a building permit, and homes north of Baseline Road are often flagged for Wildland-Urban Interface verification, which means the permit office will ask for fire-rated glass and assembly specifications. TruePane pulls the permit, specifies the rated assemblies, and handles the inspection - you do not need to negotiate the counter yourself.
No. Our quotes are fixed and line-itemed. If we find rotted framing or an out-of-square opening after the old window comes out, we show you the condition, tell you what the additional work will cost, and get your approval before proceeding. Nothing gets added to the bill without your say-so. The Done Right Promise covers the workmanship after that.
Most standard window replacements and patio door replacements in Claremont are completed in a single visit, usually four to eight hours depending on the number of openings. Custom or historic-profile work may take one to two days. We schedule firm arrival windows and call if anything changes. Call (888) 635-0804 to talk through your specific job.
A repair fixes a specific failure - a broken spring balance, fogged insulated glass unit, a rotted sash, worn weatherstripping. A replacement removes the entire frame and installs a new unit. In Claremont’s older Craftsman and Spanish Colonial homes, we often recommend staggered repairs to keep historic character intact, but we will quote both options side by side so you can decide with the numbers in front of you. Call (888) 635-0804 and we will walk you through what each one costs on your house.
Contact TruePane Windows & Doors in Claremont
For a free estimate on any window or door project in Claremont, call (888) 635-0804. A live person answers around the clock, every day. We will schedule a time for a background-checked, uniformed technician to measure your openings and quote manufacturer lines side by side on paper. Before the truck leaves, both warranty layers are registered in writing. If the pane is not true, the job is not done - and we stand behind that in Claremont.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Claremont and the surrounding foothill communities.
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 Claremont Customers Say
"Impact windows on the whole house. They handled the permit, the inspection, and gave me a folder with every approval number for the insurance company. My windstorm premium dropped enough to notice."
- Bill T."Whole-house window replacement at 71 years old is not something you want to do twice. Dale walked the house himself for the quote. Crew was the same three men all four days, and the foreman knew every window by room."
- Pat and Ray L."Eleven windows replaced in two days. The crew chief, Marcus, showed me the level on every single frame before they caulked it. My wife noticed the street noise was gone before I did."
- Ronald P.