K-Style Gutters Combine Classic Looks with Modern Performance
Off-the-shelf gutters may drain water, but they rarely fit the home. Our custom-built gutter systems are made to match your architecture, your roofline, and your expectations for long-term performance.
At Custom Installations, we fabricate every gutter on site for a perfect fit — whether it’s modern aluminum, timeless copper, or integrated steel. Designed for drainage. Built to last. Finished to complement your home, not distract from it.
- Seamless Aluminum, Copper, and Steel Options
- Custom-Fit Profiles for Any Roofline
- Designed to Move Water Efficiently Without Overflow
- Installed by Gutter Specialists, Not General Laborers
Free Estimate!
No spam. No obligation. Just straight answers and a clear quote.
Our Certifications & Trusted Brands








We Specialize in K-Style Gutters, Not Just Offer Them
While many contractors offer K-style as an add-on, we treat it as a core service. That means cleaner lines, tighter miters, and hangers that actually hold — because we’ve done this hundreds of times, not just once in a while.
- On-site Fabrication for Seamless Lengths
- Hidden Hanger Systems for Clean Aesthetics
- Custom Miters & Drop-Outs for Complex Rooflines
- Drainage Planning to Prevent Pooling & Overflow
Poorly Installed Gutters Can Lead to Big, Hidden Problems
Even the best gutter profile can fail when corners are cut. We’ve replaced plenty of systems that were undersized, poorly pitched, or attached with cheap brackets that pull loose after one season.
Common issues we fix from other installs:
- Gutters pitched the wrong way, causing backflow
- Improperly sealed end caps and joints
- Inadequate downspout sizing for the roof area
- Over-reliance on sealants instead of true craftsmanship
- Systems installed without splash blocks or extenders
Why Choose Us for Your K-Style Gutter System Project
Every K-style system we install is tailored to your home — not pulled off a shelf. We consider your roofline, soffits, fascia condition, and overall water flow before we ever attach a bracket.
- Over 50 Years of Exterior Experience
- Copper, Aluminum & Galvanized Steel Options
- Half-Round & Specialty Systems Available
- Drainage Systems That Work Seamlessly with Landscaping
- Installed by In-House Gutter Crews, Not Subcontractors

Why K-Style Gutters Are Still the Smart Choice for Midwest Homes
Efficient Water Flow, Even in Heavy Storms
Their deeper trough handles higher volumes than half-round systems — ideal for the downpours common in Illinois and Wisconsin.

A Clean, Architectural Look That Matches Trim & Fascia
The squared profile mirrors traditional crown molding, making them the most popular style for both modern and classic homes.

Seamless Options Reduce Leaks and Maintenance
We fabricate each run on-site, minimizing joints where leaks can form — and giving you a system that performs longer with less upkeep.

Compatible with Gutter Guards & Leaf Protection Systems
Add guards during installation or later on — our systems are designed to easily integrate with debris protection upgrades.

“The team from Custom Installations replaced our old leaking gutters with a seamless K-style system — and now even the heaviest rains don’t worry us.”
At Custom Installations, we’ve installed thousands of K-style systems across Chicagoland and Southeast Wisconsin. With the right materials, right slope, and right craftsmanship, they’re still the best balance of form and function.
- Over 40,000 Projects Completed Since 1969
- Preferred Partner to Builders, HOAs & Homeowners
- Seamless, Code-Compliant Systems Tailored to Your Roof
About Custom Installations, Inc.
We’re a second-generation, family-operated company built on one core belief:
Craftsmanship matters. Always has, always will.
With deep roots in Chicagoland and Metro Milwaukee, our team has served homeowners, architects, and builders since 1969. From small repairs to historical restorations, we deliver consistent, high-quality results.

Hear From Homeowners Like You
Discover what real homeowners are saying about their experience with us. From start to finish, our team is committed to delivering quality, reliability, and results you can trust.
Greta Harrris
Carol Ann B.
Jonathan J.
Denali
Ryan Chitwood
Rob
Will Lynn
Jacob Rosenfeld
Robert Tschurtz
Brett Paschke
David Held
Jonathan Jonas
What Homeowners Ask Us Most
What makes K-style gutters different from other styles?
K-style gutters have a flat back and a decorative front that mimics crown molding, making them both functional and visually appealing. They also carry more water than half-round gutters of the same width, which makes them ideal for Midwest storms.
What materials do you offer for K-style gutters?
We fabricate K-style systems in seamless aluminum, copper, and galvanized steel. Each material offers different benefits in terms of aesthetics, longevity, and maintenance — we’ll help you choose the best fit for your home.
Can K-style gutters be installed on older or historic homes?
Absolutely. Their profile works well on both traditional and modern architecture. We can match or custom-color the system to blend with your trim, fascia, or existing downspouts.
Will K-style gutters work with my existing gutter guards?
In most cases, yes. We also install new guard systems designed to pair with K-style profiles to prevent clogging and reduce future maintenance.
How long does installation take?
Most K-style gutter installations are completed in a single day. Our crew handles everything from tear-off to final inspection — clean, fast, and done right the first time.
Got More Questions?
Find Out If We Service Your Area
Custom Installations, Inc. proudly serves homeowners, builders, and property managers across Chicagoland, Metro and Milwaukee.
Primary Service Areas:
Illinois

937 Campus Drive, Mundelein, IL 60060
10936 N Port Washington Rd, Suite 343
Mequon, WI 53092
Give Us a call.
Want answers fast? Talk directly with our team — no call centers, no runaround. We’re here to help with quotes, questions, and urgent service needs.
We’ll call you.
Prefer we reach out? No problem. Just share your info and we’ll give you a call — usually within the same business day.
Custom Quote
From The Blog
Are You Guilty of These Gutter Maintenance Sins?
Gutter maintenance is often overlooked, yet it’s one of the most important tasks for keeping your home safe and free…
Should You Have Your Cedar Roof Treated?
Cedar roofs are one of the most aesthetically pleasing roof types. However, when getting them installed for your home, you’ll…
Can You Have My Gutters Cleaned in Winter?
Winter can be a tough time of year for exterior maintenance, especially when it comes to gutters. While most people…