Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CGI Construction in Interlaken, CA | Seaside Contractors
We provide independent CGI service across Interlaken, from impact window replacement to metal roof repair and seismic retrofit verification, as your trusted Interlaken General Contractor. The thing that makes our CGI work here different is simple: we know these pre-1940 bungalows on narrow lots, and we know what CGI products do when fog, salt air, and seismic movement push against them for decades. We’re Seaside Contractors, led by Glen Sorrento, and we’ve been working with CGI systems in coastal California long enough to know when to repair, when to replace, and what the local codes will allow. Call (833) 589-8103 for a free estimate on CGI window, roofing, or addition work in Interlaken.
Why Interlaken Residents Choose Us for CGI Service
CGI builds coastal-grade windows, doors, and seismic products designed for exactly the conditions Interlaken dishes out. The problem is, most contractors treat CGI like any other brand, and that’s where things go sideways. Glen Sorrento grew up watching lagoon-side homes in Foster City get built and rebuilt, then spent two-plus decades working through nearly every project type the coast throws at a contractor. We’ve pulled apart corroded CGI window frames, re-flashed leaking metal roofs, and retrofitted cripple walls with CGI shear panels. We understand the product, and we understand the houses it’s installed in. Homeowners in Interlaken call us because we’ll tell them straight whether a repair buys them another decade or whether they’re throwing money at a frame that’s already compromised.
Styles & brands we work with
Common CGI Construction Problems We Solve in Interlaken
These are the failures we see week after week on Interlaken homes, and each one ties back to something specific about this climate or housing stock:
- Window and door seal failure on CGI Coastal Series units. Constant fog and salt air work on the seals year-round. Water infiltration starts slow, then you get fogging between panes. We often replace failed seals rather than whole units, unless the frame itself is pitting.
- Corroded seismic retrofit hardware. In damp crawl spaces under older Interlaken bungalows, anchor bolts and straps installed years ago can rust through. That weakens the connection exactly when you need it most. We inspect and replace these with OEM CGI connectors to keep the system doing its job.
- Open joints on exterior trim and siding. Thermal movement plus moisture cycling pulls joints apart over time. Once a joint opens, rot gets behind the cladding and you won’t see it until the siding feels soft. We address this before it spreads.
- Loosened fasteners on standing seam metal roofs. High coastal winds work fasteners and seals loose, especially at penetrations like vent pipes and skylights. We see leaks that trace back to a few loose screws and dried-out sealant.
- Foundation and framing issues blocking code-compliant work. This is the one people don’t expect. You can’t legally add onto a pre-1940 home in Interlaken unless the foundation and framing meet current seismic and fire standards. We verify this before any CGI window or roof project starts, because it changes what’s possible.
CGI Service in Interlaken: What Local Conditions Mean for Your Equipment
Interlaken’s small-lot infill construction sits in a strange tension. The historic wood-frame bungalows and cottages were built long before modern fire and seismic codes existed, and now every addition or rebuild has to negotiate between preserving that character and meeting codes that are significantly stricter. Here’s the part most people miss: on those narrow infill lots off the main grid, pre-1940 homes can use side-yard setback exemptions for additions that would never be approved on a neighboring property with a newer house. But the exemption only works if the foundation and framing are upgraded to current seismic and fire requirements first. That means before we install CGI Coastal Series windows or a standing seam roof on your addition, we’re checking the cripple walls, the anchor bolts, the shear panels. If that structural retrofit isn’t right, the whole project stalls at inspection. We’ve helped enough Interlaken homeowners through this exact process that we plan for it from day one.
CGI Models & Products We Service in Interlaken
We work with the full CGI product range you’re likely to find on Interlaken homes. That includes CGI Coastal Series impact-rated windows and sliding glass doors, CGI Seismic Retrofit Foundation Systems with anchor bolts and framing connectors, CGI Weather-Tight Exterior Siding and Trim, and CGI Standing Seam Metal Roofing. For critical hardware on windows, doors, and seismic connectors, we source OEM parts to keep the warranty and performance intact. For trim and weatherseals, we’ll use quality aftermarket equivalents when they meet or exceed OEM specs, because that’s the honest way to control cost without cutting corners. We keep common seal and flashing materials on hand for faster turnaround on Interlaken jobs.
See the difference
Before
After
Before
After
Before
AfterCGI Service Pricing in Interlaken
Here’s what CGI repair in Watsonville and nearby markets typically runs. These ranges reflect what we see across Interlaken and the surrounding area:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Roof Replacement | $8,000 – $20,000 |
| Home Addition | $45,000 – $130,000 |
What drives the cost on Interlaken jobs? Window replacement price depends on how many units, whether frames are corroded, and whether the opening needs structural work. Roof replacement climbs when we’re replacing sheathing or addressing failed flashing at penetrations. A home addition involves everything: foundation, framing, windows, roofing, and the seismic retrofit that Interlaken’s older homes require. Every estimate is free, and we’ll walk you through the line items so you know what you’re paying for. Call (833) 589-8103 to schedule yours.
Serving Interlaken, CA — Our Local Coverage Area
We’re based in the Interlaken 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 – CGI Construction in Interlaken
Yes, more than inland homes. The fog and salt air work on the seals constantly, so we recommend an annual check of the gaskets and weep holes. Most Interlaken homeowners skip this until water shows up inside, and by then the fix is more involved. A quick seal inspection each fall catches most problems early. Call (833) 589-8103 if you want us to take a look.
You can, but only if the foundation and framing are brought up to current seismic and fire codes first. The exemption exists for historic homes, but it’s not a free pass. We verify the structural condition before any CGI window or roofing work starts, because the inspection won’t pass otherwise. We manage that whole process for you.
Loose fasteners and failed seals at penetrations on standing seam metal roofs. High coastal winds work them loose over time, and the leaks start small. We re-tighten, re-seal, and re-flash around vents, pipes, and skylights. It’s a repair that usually costs a few hundred dollars rather than a full replacement, if you catch it early.
In most cases, yes. CGI anchor bolts, framing connectors, and shear panels are designed to work with existing wood-frame construction, including the older bungalows common here. The question is what condition your current hardware is in. We inspect the crawl space and tell you what needs replacing and what can stay.
If the glass is fogging between panes but the frame is solid, we can usually replace the seals and glass unit. If the frame is corroded, pitted, or swollen, replacement is typically the better call, because a repair won’t last in Interlaken’s coastal air. We’ll show you the condition of your frames so you can make that call with confidence. Call (833) 589-8103 for an honest assessment.
Service Areas Near Interlaken
Our crew works throughout the Pajaro Valley and surrounding areas. Along with Interlaken, we handle CGI service in Watsonville, Freedom, Pajaro, and the neighboring communities of CGI service in Las Lomas and CGI service in Amesti. If you’re in any of these areas, call and we’ll see how soon we can get out to you. You can also learn more about our full Interlaken service area or our CGI sales & service capabilities.
Book Your CGI Service in Interlaken Today
If your CGI windows are fogging, your metal roof is leaking, or you’re planning an addition on an older Interlaken lot, call (833) 589-8103. We’ll schedule a free estimate, inspect what’s there, and give you a straight answer on repair versus replacement.
Written by Glen Sorrento, Owner at Seaside Contractors, serving Interlaken and coastal California with independent CGI product expertise.