Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterCGI Construction in San Francisco, CA | Rowan Construction Group
We provide independent CGI window and door service across San Francisco, from the Outer Richmond to Noe Valley, and we’re not a manufacturer-authorized dealer. That independence matters because it means our recommendation is based on what the building actually needs, not what a brand program tells us to sell. The one thing that makes our CGI work different here: we scope every job against San Francisco’s soft-story retrofit triggers and DBI plan-check timelines before we quote a single window. Call (470) 298-9650 for a written estimate.
Why San Francisco Residents Choose Us for CGI Service
CGI windows and doors are built in Miami for hurricane zones, but San Francisco’s marine layer, bay-fill soils, and seismic retrofit mandates create a completely different set of failure patterns. Our crews have pulled CGI units from Victorians in the Mission, Edwardian flats in the Inner Sunset, and mid-century boxes in the Marina, and we know which components fail in which microclimates. Grant Rowan founded Rowan Construction Group in 2007 with a rule that still governs every job: the price goes in writing before anyone picks up a tool. Under Clause 1 of our Haven Standard, you get a flat written price and a written scope before work starts, every time. We source OEM CGI parts for anything structural or water-related, and we’ll tell you honestly when a 15-year-old unit costs more to repair than replace. Measure twice, say it once, show your work.
Common CGI Construction Problems We Solve in San Francisco
- Perimeter caulking rot on CGI Classic windows in fog zones. In Sunset and Outer Richmond, marine fog keeps siding and window perimeters damp for months at a stretch. We regularly pull CGI Classic units where the exterior sealant has failed, leaving the aluminum frames weeping condensation and staining interior trim. The fix is removing the old caulk, addressing any rotted substrate, and re-sealing with a marine-rated product, then documenting the work with photos.
- Corroded casement operators on CGI Estate Series near Ocean Beach. Salt-laden air accelerates corrosion on crank gears and hinges. We see Estate casement windows where the operator spins freely because the gear teeth are stripped or the hinge is seized. OEM replacement hardware is usually the right call here; aftermarket operators rarely match the torque spec.
- Cracked glazing beads after seismic retrofits. On pre-1970s wood-framed Victorians and Edwardians, the original rough openings shift when shear walls are added or foundations are upgraded. That movement transfers uneven pressure onto CGI window frames, and the glazing beads crack. We reset the units into properly shimmed, structurally tied openings rather than just replacing the bead and hoping it holds.
- Buckled CGI Sentinel door thresholds in the Marina and SoMa. Buildings on loose bay fill settle, and when the ground moves, door alignment follows. The multipoint lock on a Sentinel door won’t throw when the threshold has buckled even a quarter inch. On these jobs we often need to address the threshold support, not just adjust the hinges.
- Stripped balance systems from repeated fog-cycle expansion. Wood frames swell and shrink with San Francisco’s fog-wet-dry cycle. That constant movement stresses CGI balance systems, especially in single-hung units. We replace balances with OEM parts and confirm the jamb liners aren’t binding before we rehang the sash.
BeforeAfterCGI Service in San Francisco: What Local Conditions Mean for Your Equipment
San Francisco’s mandatory Soft-Story Retrofit Program is the single biggest scheduling and engineering variable for CGI work in this city, and it’s the reason this page exists. Any new CGI window installation in a building with a weak ground-floor garage or open storefront must be engineered to work with the lateral system being added or already in place. That means custom shims, anchors tied to the shear wall, and often an extra round of DBI review before the window can be signed off. A contractor doing CGI work in Daly City or CGI repair in Oakland doesn’t face that same trigger on the same project. We scope for it from the first site visit, because finding out at plan-check time that your window package conflicts with the retrofit engineering is a costly and entirely avoidable delay. In practice, that first visit determines whether your project goes over-the-counter at DBI or into full plan check, which can run six to eighteen months in San Francisco.
CGI Models & Products We Service in San Francisco
We work on the full CGI line: Classic Series single-hung and picture windows, Estate Collection impact windows, Sentinel Series impact doors, and the architectural Targa Series. For anything that affects structural integrity or water penetration, laminated glass units, corner keys, balance systems, we use OEM CGI parts ordered directly; aftermarket pieces rarely match the tolerances. For cosmetic wear items like weatherstripping or sash locks, we’ll use quality aftermarket parts when they make sense and tell you that’s what we’re doing. We keep common components staged locally so San Francisco customers aren’t waiting on a truck from Miami for routine hardware.
CGI Service Pricing in San Francisco
Here are the ranges we quote most often for CGI work in San Francisco. These are for project planning; your written estimate will be exact, not a range.
| Service | Price Range |
|---|---|
| Impact Window Installation | $9,440-$29,500 |
| Window Replacement | $5,310-$17,700 |
What drives cost here more than anything is whether your building falls under the soft-story retrofit mandate and what the existing rough openings look like once we open them up. A straight swap in a 1990s Sunset home is a very different number from resetting three units in a 1905 Edwardian that just had shear walls added. Every estimate includes a written scope, a written warranty, and a documented photo record, plus we can quote our Driveway & Pavers in San Francisco if your project needs it. We also offer a free second opinion on any written competitor estimate. Call (470) 298-9650 to schedule yours.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco area and know this community well, and we also handle Fence Installation in San Francisco. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - CGI Construction in San Francisco
No. The soft-story retrofit mandate addresses the lateral strength of the ground-floor structure, not the impact rating of your windows. What matters is that any new window installation ties properly into the retrofit’s shear-wall system. We coordinate with your engineer so your CGI units don’t conflict with the lateral design. Call (470) 298-9650 and we’ll walk you through what your specific building actually requires.
We start by exposing the rough opening and inspecting the condition of the surrounding framing and water-resistive barrier before any new unit goes in. The outer seal is only as good as the substrate behind it. On fog-exposed elevations, we use marine-rated flashing and sealant and document every layer with photos before the trim goes back on. Call (470) 298-9650 if you’re seeing staining or condensation around your existing CGI frames.
Usually yes, when the rough opening size doesn’t change and the project stays within the scope of San Francisco’s over-the-counter permit path. Once we know your building’s DBI permit history and whether the property falls under any historic-preservation overlay, we can confirm. We determine that on the first visit, because getting it wrong means a months-long plan-check detour. Call (470) 298-9650 for a free estimate and we’ll tell you before you commit.
Almost always yes. The stripped gear or seized hinge is usually repairable with an OEM operator replacement, and we keep common Estate hardware staged locally for fast turnaround. If the window is older and you’re paying for repeated operator repairs on top of other issues, we’ll give you a straight comparison between continuing to repair and replacing the unit. Call (470) 298-9650 and we’ll diagnose it.
Match the sightlines first: choose a CGI configuration that respects the original window’s divided-light proportions, then preserve the exterior casing and trim rather than capping over it. We’ve reset CGI units into Victorians across San Francisco where the original trim remained untouched and the glass package changed the entire performance without changing the face of the house. The right configuration is specific to your building’s era and street frontage, so call (470) 298-9650 and we’ll look at it in person.
Service Areas Near San Francisco
We serve San Francisco and the surrounding Bay Area. If you’re located in San Jose, Oakland, Daly City, South San Francisco, or San Bruno, we can usually schedule on the same routing as our city work. For customers further out, see our CGI sales & service page for coverage details. We also maintain a San Francisco service area hub with neighborhood-specific pricing context. If you’re comparing contractors outside the Bay, our CGI service in Fort Worth and CGI service in Fresno pages cover those markets.
Book Your CGI Service in San Francisco Today
Call (470) 298-9650 to schedule a free estimate for CGI window and door work in San Francisco. We’ll put the price in writing before any work begins, and we’ll document what we find and what we do. That’s the Rowan Construction Group standard.
Written by Grant Rowan, Owner at Rowan Construction Group, serving San Francisco since 2007.