Experience unparalleled comfort and energy efficiency in your $Grimsby home with our bespoke windows and doors. Designed to withstand the unique demands of Ontario's climate, our solutions blend seamlessly with your property's aesthetic, enhancing both its beauty and performance.
60% Energy Savings
Highest R-Value in Industry
$5,000 Rebates
Government Certified
0% Financing
No Payments Until 2026
When it comes to upgrading your home’s windows and doors in Grimsby, Ontario, choosing the right products and installers is essential for comfort, energy savings, and long-term value. As Formcorex certified installers, our team brings extensive experience working with Grimsby’s unique climate—from the cold lake-effect winters along the Niagara Escarpment to the humid summers in neighborhoods like East Grimsby and Weiland Road. We specialize in installing ENERGY STAR® certified windows and doors that not only meet but exceed local energy efficiency standards, helping you reduce heating and cooling costs year-round.
Our selection includes top-quality Formcorex products in vinyl, fiberglass, and wood options, tailored to match your home’s style and performance needs. For example, our vinyl windows feature multi-chambered frames with Low-E glass and argon gas fills, designed to minimize heat loss during chilly winters and block unwanted solar gain in summer. Fiberglass doors and windows offer superior structural strength and resistance to warping, perfect for Grimsby’s fluctuating temperatures. Wood options provide classic aesthetics with modern thermal breaks to maintain energy efficiency without sacrificing beauty.
Custom Contracting is Ontario's exclusive provider of FoamCoreX™ - the most advanced foam-filled window technology that eliminates air pockets and thermal bridging for maximum energy efficiency.
| Feature | FoamCoreX™ Windows | Traditional Triple Pane | Standard Double Pane | Single Pane |
|---|---|---|---|---|
| R-Value (Insulation) | R-9+ | R-5 | R-3 | R-1 |
| Energy Savings | Up to 60% | Up to 35% | Up to 20% | Baseline |
| U-Factor | 0.18 | 0.25 | 0.30 | 1.00 |
| Sound Reduction (STC) | 52 (75% reduction) | 42 (50% reduction) | 32 (30% reduction) | 26 (15% reduction) |
| Frame Strength | 300% Stronger | Standard | Standard | Weak |
| Warranty | 25 Years Transferable | 10-15 Years | 5-10 Years | 1-2 Years |
| Average ROI | 3-5 Years | 7-10 Years | 10-15 Years | N/A |
Complete elimination of air pockets for maximum insulation
300% stronger than hollow frames - no warping or bowing
Up to 60% reduction in heating and cooling costs
Industry-best protection that adds value to your home
Traditional windows have hollow chambers in their frames that allow air to circulate, creating thermal bridging and energy loss. FoamCoreX™ technology fills every chamber with high-density polyurethane foam, creating a continuous thermal barrier that revolutionizes window performance.
Custom Contracting is the only certified FoamCoreX™ installer in Ontario, ensuring you get authentic technology with factory-trained installation and full warranty protection.
Grimsby's rich tapestry of architecture calls for a diverse range of window styles. Whether you reside in a historic property or a contemporary family home, our extensive collection offers designs that perfectly blend with your property's unique character.
Starting at $575 per window
Lifetime hardware warranty
| Size | Price |
|---|---|
| 24" x 36" | $575 |
| 30" x 48" | $625 |
| 36" x 60" | $695 |
| 48" x 72" | $795 |
*Prices include FoamCoreX™ technology and professional installation
Every component is engineered for maximum performance and longevity
Complete Assembly View
Corner Joint Detail
FoamCoreX™ Multi-Layer Construction
Triple-Pane Technology
Multi-Chamber Design
See how each component comes together in perfect sequence
Explore each layer of our advanced window construction
Three layers of glass with dual Low-E coatings block up to 99% of harmful UV rays while keeping your home comfortable year-round.
90%+ argon gas fill between panes provides superior insulation compared to air, reducing heat transfer dramatically.
Save up to $850 per year on energy bills compared to old single or double-pane windows.
Triple-layer compression seals keep drafts out
Stainless steel components built to last
Advanced locking for maximum protection
See the dramatic difference in heat retention with infrared imaging
Real-time visualization of R-value, U-factor, and energy savings
🔍 Slide to reveal internal structure and see what makes our windows superior
Experience next-generation door technology with FoamCoreX™ insulation, smart security features, and cutting-edge design trends.
For Grimsby homes, our door collection offers both robust security and elegant design.
FoamCoreX™ technology delivers superior insulation, reducing energy bills by up to 25%.
Multi-point locking systems, smart lock compatibility, and reinforced construction.
Compatible with leading smart home systems, keyless entry, and remote monitoring.
Maximum security & durability
Wood look, zero maintenance
Transform your indoor-outdoor living experience with our premium patio door collection
Space-saving design with smooth operation. Available in 2, 3, or 4-panel configurations.
Classic elegance with hinged operation. In-swing or out-swing configurations available.
Create a seamless indoor-outdoor living space. Panels fold and stack to one or both sides.
One of the biggest benefits our Grimsby customers appreciate is the significant savings on their energy bills. By upgrading to our ENERGY STAR certified windows and doors, many homeowners have reported a noticeable reduction in drafts and improved indoor comfort, especially during the cold snaps common near the lakefront. Additionally, thanks to Ontario’s government incentives, you may qualify for rebates over $5,000, making this an ideal time to invest in energy-efficient home improvements.
We take pride in our fully in-house installation crews who handle every project from start to finish. This means no subcontractors, no surprises—just trained professionals committed to quality workmanship. To back that commitment, we offer a lifetime workmanship warranty on all our projects, giving you peace of mind that your investment is protected. Our top-rated status on Google, supported by glowing reviews from local families across Grimsby, reflects our dedication to honest, reliable service.
Grimsby homeowners can access up to $5,000 in rebates and grants for energy-efficient window upgrades in 2025. Combined with our 0% financing options, there's never been a better time to upgrade your windows.
Grimsby residents can take advantage of various local and national initiatives. The Government offers programs providing support for energy-saving upgrades. Our team can help you navigate these programs and identify potential savings.
Savings: Up to $40,000 interest-free
Get up to $325 per window opening for qualifying ENERGY STAR windows. Maximum rebate of $5,000 per household.
Savings: Up to $5,000
Provincial rebates for energy-efficient home improvements including windows and doors. $100 per window replacement.
Savings: $100 per window
Book a pre-retrofit energy assessment with a certified energy advisor. Required for most rebate programs.
All FoamCoreX windows meet or exceed ENERGY STAR requirements for the Northern Climate Zone.
Use a certified installer like Custom Contracting. Proper installation is crucial for rebate approval.
We help you complete all paperwork. Most homeowners receive rebates within 8-12 weeks.
From your first consultation to final inspection, we make window replacement easy and stress-free for Grimsby homeowners.
We visit your Grimsby home to assess your needs, take measurements, and provide a detailed quote with rebate information.
Your FoamCoreX windows are custom-built to your exact specifications, typically ready in 4-6 weeks.
Our certified installers complete most projects in 1-2 days with minimal disruption. We protect your home and clean up completely.
We conduct a thorough inspection, demonstrate operation, and activate your 25-year transferable warranty.
Complete visual guide to our installation process
See how windows are properly integrated into your walls
Schedule your free consultation today and discover why Grimsby homeowners trust Custom Contracting
Book Your Free ConsultationReady to improve your home’s energy efficiency and curb appeal with premium Formcorex windows and doors? Give us a call at (226) 799-4975 to schedule a free consultation. We’ll guide you through the best options for your home and explain how you can maximize rebates and energy savings. Let’s work together to make your Grimsby home more comfortable, beautiful, and efficient for years to come.
Grimsby is home to many beautiful historic properties. We specialize in replacement windows that honor your home's architectural heritage while delivering modern performance.
For owners of historic Grimsby homes, preserving architectural integrity while upgrading to modern performance is paramount. Our bespoke window and door solutions are designed to respect and enhance traditional aesthetics, offering period-appropriate styles that meet conservation guidelines.
Many Grimsby heritage properties require approval for exterior changes. We have extensive experience working with local heritage committees and conservation districts.
We handle all documentation and ensure your new windows meet both heritage standards and modern building codes.
Get Historic Home ConsultationGrimsby experiences Ontario's distinct seasons with cold winters and warm summers, necessitating robust and thermally efficient windows and doors to maintain a consistent indoor environment.
Cold Ontario winters can expose inefficient windows, leading to uncomfortable drafts and soaring energy bills. Our foam-filled frames provide an airtight seal, stopping heat loss in its tracks.
High humidity can lead to condensation between glass panes, promoting mold growth. Our advanced sealing technology and insulated frames prevent this, ensuring a clear view and healthy home.
Temperature and humidity swings can cause frames to warp. Our 300% stronger FoamCoreX™ frames are guaranteed not to warp, bow, or crack.
Custom Contracting is your trusted local expert for window and door replacement. We serve all of Grimsby, including these and many other fine neighborhoods:
Downtown Grimsby
Grimsby Beach
Winona
Queen's Park
Mountainview
Livingston
Windward
Casablanca
Main Street
Lake Ontario Shores
Grimsby Heights
North Grimsby
Escarpment
Ridge Road
Southward
Bartlett
From installation to replacement, we offer complete window and door solutions tailored to Grimsby homes.
Professional window installation services with expert craftsmanship and guaranteed quality for Grimsby homes.
Learn More →Complete door replacement solutions including entry doors, patio doors, and more.
Learn More →Save up to 60% on energy costs with our high-performance energy efficient windows.
Learn More →Transparent pricing and financing options for your window replacement project.
Learn More →Preserve the character of your historic home with period-appropriate window solutions.
Learn More →Professional commercial window solutions for businesses and multi-unit properties.
Learn More →Grimsby homeowners ask us these questions about window and door replacement
Most full-home window replacements (10-15 windows) take 1-2 days. Single window replacements can be completed in 2-3 hours. We work efficiently to minimize disruption to your daily routine.
While we install year-round, spring and fall offer ideal conditions. However, winter installations are possible and can provide immediate energy savings. Book early for spring/summer installations as these are our busiest seasons.
Most window replacements (same size, same location) don't require permits. However, heritage properties or changes to window size/location may need approval. We handle all permit requirements for you.
Grimsby homeowners typically save $850-$1,200 annually with FoamCoreX windows. Savings depend on your current windows, home size, and heating/cooling system. Most homeowners see ROI within 3-5 years.
All FoamCoreX windows include a 25-year transferable warranty covering glass, frame, hardware, and installation. This is the best warranty in the industry and adds significant value when selling your home.
Yes! We offer custom colors, grilles, hardware, and styles to match any home architecture. This is especially important for Grimsby's many historic homes.
We proudly serve communities across Southern Ontario
Join thousands of satisfied Grimsby homeowners who have upgraded to FoamCoreX windows and doors. Get your free quote today and start saving on energy bills immediately.
Serving all Grimsby neighborhoods with expert installation and lifetime warranty
Our team has been serving Grimsby homeowners with hands-on expertise for years. We've completed thousands of projects across every neighborhood, understanding the unique challenges of Grimsby's climate, building codes, and property types.
All our contractors are: Licensed, insured, background-checked, and continuously trained on the latest industry standards and techniques. We invest in ongoing education to ensure we deliver cutting-edge solutions.
All our installation work is backed by our lifetime workmanship warranty
No hidden fees. Detailed quotes with all costs itemized upfront
We don't consider the job done until you're 100% satisfied
Don't miss this 60% OFF offer! Contact us today.
📍 Visit Us
45 Worthington Dr Unit H
Brantford, ON N3T 5M1
✉️ Email Us
infor@customcontracting.ca