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CGIFree in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Get your free estimateFast, Reliable Door Installation Across Castle Hills
Door installation in Castle Hills typically runs $900 – $3,800 depending on whether we’re swapping a standard entry unit or reframing an original 1950s opening for an impact-rated door. Most Castle Hills jobs take one to two days once the old unit is out and we’ve confirmed the framing is sound. Our crews work throughout Castle Hills regularly, from the ranch homes along West Avenue to the larger lots near Country Club. If you’re planning a door replacement in Castle Hills, call (325) 420-4173 for a written quote, usually within 24 hours of a site visit.
Why Lightwell Windows San Antonio Is Castle Hills’s Preferred Door Installation Company
Castle Hills homeowners call us because we understand what hides behind mid-century walls. Keith Yamada, who leads our San Antonio operation, has walked hundreds of Castle Hills door openings and knows what a 1963 jamb looks like once the casing comes off. We don’t guess at framing, and we don’t quote a number that changes at the end of the job.
Every Castle Hills project starts with an inspection of the rough opening, the header, and the waterproofing behind the existing trim. That’s the only way to price a door honestly in this city, where original aluminum frames and jalousie windows were never built for modern insulated units. Our Door Installation team writes the price down before work starts, and the 365-Day Done Right Promise means if the finished door isn’t right, we make it right, no countdown.
Calls are answered by a live person 24/7, which matters when a Castle Hills homeowner discovers a rotted threshold at 9 p.m. and needs to know whether the door will hold until morning. Our techs arrive in uniform, wear shoe covers, put down drop cloths, and follow the C.A.R.E. values on every visit: Clean up like it’s our own home, Ask before moving anything, Respect your time and quiet hours, and Explain the price before touching the opening.
Styles & brands we work with







Sliding Glass Door Installation in Castle Hills
Sliding glass door installation in Castle Hills usually means replacing a unit that’s been in the wall since the Kennedy administration. Most ranches here had an aluminum slider opening onto the patio, and after six decades of Texas sun and humidity, the rollers bind, the track corrodes, and the frame wicks water into the subfloor. A new slider in Castle Hills typically runs $1,600 – $3,200 installed, with the final number driven by the width of the opening, the glass package, and whether the header above needs reinforcing for a heavier impact-rated unit.
Reframing Original Openings
Original Castle Hills sliders were often set into undersized rough openings without a proper header. When we install a PGT or Therma-Tru slider, we check the load path above before anything gets ordered. If the header is undersized, we reframe it as part of the written quote, not as a surprise add-on later.
Weatherproofing The Sill
Behind most original Castle Hills sliders there’s no flashing, no sill pan, and no peel-and-stick membrane. We correct that on every install: pan flashing at the sill, tape at the jambs, and a properly sloped threshold. The new door won’t leak into the same spot the old one did.
Door Repair in Castle Hills
Door repair in Castle Hills covers everything from a sticking entry door on humid August days to a sliding patio unit that’s dragging on worn rollers. Common repairs run $180 – $650, with the high end covering work like replacing a rotted jamb leg or re-hanging a door after settling shifted the frame. We repair what’s repairable and tell you straight when the better money goes toward replacement.
Rotted Jambs And Failed Weatherstripping
Castle Hills homes with original wood jambs often have dry rot hiding under the threshold. We cut out the rotted section, sister in treated lumber, and re-hang the door so it closes square and seals tight. It costs less than you’d think when caught early.
Slider Roller And Track Repair
If your sliding door in Castle Hills binds halfway open, the rollers are likely shot and the track may be bent or corroded. We replace both, clean the track, and adjust the wheels so the door glides. Most slider repairs run $220 – $480.
Trusted Brands We Service in Castle Hills
We stock parts and order units from the manufacturers that fit Castle Hills homes best: Therma-Tru fiberglass entry doors, PGT impact-rated sliders, and ViewLux for clean-line modern replacements. Because we carry these lines locally, turnaround on a Castle Hills order is faster than a shop that has to special-order everything. We’ll recommend the brand that matches your opening, your exposure, and your budget, not the brand we happen to have on a shelf.
See the difference
Before
After
Before
After
Before
AfterCommon Door Installation Problems We See in Castle Hills Homes
- Undersized headers above original sliders. Many 1950s-60s Castle Hills openings were framed for lightweight aluminum units. A modern impact-rated door weighs twice as much, and without header reinforcement, the unit sags and the rollers bind within a year.
- Dry rot behind original aluminum frames. Decades of failed weatherstripping let capillary water soak the jamb and subfloor. On Castle Hills Drive, we pulled a slider out of a 1963 ranch and found the original jamb sistered with untreated lumber and no flashing behind the stucco. We reframed the opening to a true 6-8 rough opening, installed a Therma-Tru insulated fiberglass door with low-E glass, and wrapped the sill pan with peel-and-stick before the new casing went on. The owner’s hallway stopped sweating within a week.
- Capillary leaks that rot the new frame. If exterior waterproofing isn’t upgraded when an original Castle Hills door comes out, the same leaks that destroyed the old frame will attack the new subfloor. We fix the waterproofing as part of the install, every time.
- Non-standard jalousie window openings. Cantwell Drive and Castle Hills Drive still have original jalousie windows that leak air and can’t be insulated. Converting one of those openings to a door almost always means reframing a non-standard rough opening that was never sized for a modern insulated, impact-rated unit.
Pricing for Door Installation in Castle Hills, TX
Entry door replacement in Castle Hills runs $900 – $2,400 for a standard pre-hung steel or fiberglass unit installed in a sound opening. Sliding glass doors run $1,600 – $3,200, depending on glass package and header work. French and double door installs start around $2,200 and go up with impact glazing and custom sizing. If we’re converting a jalousie window to a door on Cantwell Drive, budget $2,800 – $5,000: the opening has to be reframed, the load path checked, and waterproofing added where none existed. Every quote is written, line-itemed, and fixed before work begins. Call (325) 420-4173 to schedule a free estimate.
We Also Serve Cities Near Castle Hills
Lightwell Windows San Antonio serves Castle Hills and the surrounding communities of San Antonio, Schertz, Selma, and New Braunfels. If you’re in one of those areas and need door work, the same written-pricing promise and C.A.R.E. standards apply. Learn more about our work across the region on our Door Installation in Castle Hills page.
Serving Castle Hills, TX - Our Local Coverage Area
We’re based in the Castle Hills 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 Door Installation in Castle Hills
Yes, Castle Hills requires a permit for exterior door replacement, and it typically triggers an inspection of the rough opening, the header, and the flashing details once the old unit is out. We handle the permit, schedule the inspection, and make sure the work passes before the casing and trim go back on. Call (325) 420-4173 if you want us to check whether your specific opening will need more than a simple swap.
We write an allowance into the contract before work starts, so if we open the wall and find rotted framing behind your old slider, the fix is already priced and approved. You’ll see a written change order with the exact cost before we touch the rotted wood, and nothing gets added to your final invoice that wasn’t shown to you first. Call (325) 420-4173 for a quote that includes a realistic framing allowance for your Castle Hills home.
Converting a jalousie window to a door in Castle Hills means reframing the opening, because the original rough opening was never sized for a modern insulated door. We’ll check the wall’s load path, size the new header correctly, and install a Therma-Tru or PGT unit with proper flashing and a sill pan. Budget roughly $2,800 – $5,000 for the full conversion, and call (325) 420-4173 for an exact written quote.
Yes, a properly installed impact-rated or insulated door will reduce air leakage and solar heat gain in a Castle Hills home, especially if it replaces an original aluminum-frame door or a leaky jalousie unit. The biggest savings come when the new door seals tight and the framing behind it is sound, not just when the door itself is energy-efficient. Call (325) 420-4173 and we’ll assess your opening and tell you what a realistic savings range looks like for your house.
Most likely because the rough openings were different sizes, the wall conditions weren’t the same, or one home had a newer header and better waterproofing than the other. In Castle Hills, two houses built a year apart on the same street can have completely different framing details behind the trim. We measure every opening, document what’s behind the casing, and quote each job based on what’s actually there, not on a one-price-fits-all schedule. Call (325) 420-4173 for an assessment of your specific door.
Written by Keith Yamada, Owner at Lightwell Windows San Antonio, serving Castle Hills and surrounding communities since 2010.
Six Reasons Homeowners Choose Lightwell Windows San Antonio
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.