NIAGARA’S TRUSTED EXPERTS FOR GUTTERS, SIDING, AND EXTERIOR HOME IMPROVEMENTS

Proudly Serving Niagara with High-Quality Seamless Eavestroughs, Soffit, Fascia & Siding

Get Your Free Quote Today – Fast, No-obligation, Guaranteed

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Your Trusted Siding, Soffit, Fascia & Eavestrough Contractor in St. Catharines

Welcome to Custom Seamless Eavestrough—Niagara’s choice for seamless gutters, soffit, fascia, siding, and windows. For over 35 years, we’ve made exterior upgrades simple, fast, and worry-free for homeowners and roofing contractors alike.

From seamless eavestrough installation and gutter guards to durable siding and energy-efficient windows, we deliver clean, professional results that protect your home and boost curb appeal.

Don’t just take our word for it—“Robert and his team were fast, professional, and left our property spotless. The new gutters solved our flooding problem instantly!” – Niagara Homeowner. Ready to experience the same peace of mind? Call now to get your free estimate and ask about our limited-time promotional discount for Niagara homeowners.

“If you’re looking for trusted local experts, call us today. We offer competitive prices and quality certified workmanship,

and we will be with you

every step of the way.”

Robert Kerkhoven, Owner,

Operator

Our Services

At Custom Seamless Eavestrough, we offer a wide range of services that can greatly contribute to the protection, functionality, and aesthetics of your property’s exterior. Our personalized solutions include:

Our Process

1

Job Walk & Quote

We begin with a site visit to assess your needs, take measurements, and discuss your goals. You’ll receive a detailed, no-obligation quote.

2

Schedule Install

Once approved, we’ll coordinate a time that works for you. Our flexible scheduling ensures your project stays on track and on time.

3

Clean Execution

Our crew arrives on time, works efficiently, and treats your property with care. We use custom-fabricated materials for a perfect fit and leave the site spotless.

4

Follow-up

After installation, we walk you through the finished work and answer any questions. Your satisfaction is our top priority.

Get 20% off Eavestrough Installation

Now’s the perfect time to upgrade your home’s protection. Enjoy 20% off your new eavestrough system, installed by Niagara’s trusted aluminum experts.

Why Choose Us

35+ Years Experience

Smarter solutions, faster installs, fewer headaches.

No Deposit

Pay only when the job’s done right.

Fully Insured

WSIB-covered with $2M liability for total peace of mind.

Transparent Pricing

Clear quotes, no hidden fees, no surprises.

Flexible Financing

0% options available so you can upgrade now and pay later.

On-time & Reliable

Crews that show up, stay efficient, and finish as promised.

Trusted Partner for Roofers

We fit seamlessly into your schedule and deliver quality you can count on.

Clean, Professional Work

No mess, no shortcuts—just solid craftsmanship.

Innovation That Saves You Time

AI quoting and onsite delivery keep projects moving smoothly.

Local & Proud

Niagara-based, serving our community with quick response and lasting reputation.

Choosing Custom Seamless Eavestrough means choosing peace of mind. With 35+ years of local expertise, no deposits, full insurance, and flexible financing, we make exterior upgrades simple, safe, and stress-free—delivering the quality and reliability Niagara homeowners and contractors trust.

Increased Property Value

High-quality aluminum upgrades don’t just protect your home, they enhance its curb appeal and long-term value. Our seamless systems and clean finishes make a lasting impression that pays off.

Expert Knowledge of Niagara’s Regulations

We know Niagara. From regional weather patterns to local building codes, our team brings expert insight that ensures your project is compliant, durable, and built to handle the elements.

Personalized Planning & Design Process

At Custom Seamless Eavestrough, we understand that no two homes are the same. For that reason, we take the time to understand your needs and design a system that fits your home’s layout, style, and budget perfectly.

Warranty for Every Project

At Custom Seamless Eavestrough, we stand behind our work with a full workmanship warranty and product guarantees. Our installations are built to last, and if any issues arise, we’ll make it right. No hassle, no hidden fees.

High-quality Materials

We use premium-grade aluminum and durable components designed to withstand Niagara’s climate and deliver long-lasting performance. Every piece is custom-fabricated for a precise fit, ensuring strength, style, and reliability in every install.

Ready to Upgrade Your Home? Let’s Talk Today

Whether it’s a full exterior makeover or a quick repair, our team is ready to get started. Call now for your free estimate and ask about our limited-time promotion—Niagara homeowners save 20% on eavestrough installation when you book this month!

Get an Estimate

See What Our Happy Customers Are Saying

The Guys Did a Great Job

My husband and I had our eaves, soffit and fascia done on the house as well as some capping. The guys did a great job. We are extremely happy with the work and all the follow up. The owner of the company is hands on and follows up immediately. Robert brought samples by and answered all our questions. Thank you for helping us get another project done.

Dorothy T.

One of the Best Contractors We Have Worked With

Our experience with Custom Seamless Eavestrough was outstanding. From the time we sat with the owner and discussed our needs to the final walk around after the installation the attention and professionalism was excellent. They were timely, polite, clean and very cost competitive. One of the best contractors we have worked with. The product is clean and streamline. Exceptional quality. We highly recommend Custom Seamless.

Kevin A.