202 555 0123

Thornhill

Exterior Remodeling Thornhill Homeowners Trust

Thornhill homeowners see it clearly, mismatched siding patches, a deck stain that doesn't match, old window trim that screams past neglect, an exterior that reads as hasty fixes instead of a home that's cared for.

Paragon Exteriors coordinates siding, trim, deck finishes, and window surrounds so every element speaks the same visual language, no clashing materials or colours that betray years of quick fixes, leaving your exterior looking deliberately designed from the street.

25+ Years of Service

4.9 ★ · 180 reviews

Premium Quality

At Wrap4Car, we use premium materials for every project. Choose from a variety of finishes and styles to create a beautiful, long-lasting look for your vehicle.

20+ Years of Experience

With decades of expertise serving Boston and surrounding areas, Wrap4Car delivers skilled vehicle wrapping services with precision and care.

Service With A Smile

Your happiness is our ultimate standard. We treat every vehicle transformation with the utmost care and dedication, ensuring a flawless finish and a worry-free experience because your vision is our top priority.

Paragon

A patched exterior doesn’t just look off; it drags down how you feel pulling into your driveway. In a neighbourhood of manicured properties, that visual noise makes your home feel behind, even when everything inside is perfect.

This area sits on a slope that catches every weather system rolling through the Fraser Valley, from wind-driven rain to damp winters that never fully dry out. Siding and trim face relentless moisture cycles, and decks take a beating from seasonal freeze-thaw shifts that lift stain right off the boards.

Paragon Exteriors

We’re eager to chat! Drop us a line for all your exterior needs.

Mon - Sun: 6AM - 6PM

Working Hours

Send Us a Message

Let us know how we can assist you! Fill out the form, and we’ll respond within 24 hours.

Estimated Exterior Remodeling Costs in Thornhill
This table details estimated costs for Paragon Exteriors's service catalog in Thornhill. The rows categorize each exterior service offered, while the columns represent pricing across different project size brackets. Homeowners can reference each cell to determine the expected cost range in Canadian dollars for their specific project scope.
Exterior Remodeling Prices in Thornhill
Exterior Remodeling Thornhill ServiceProject Size Remodeling PriceUnder 100 m² Remodeling Price100–250 m² Remodeling Price
Fascia CappingCAD 1,000 – CAD 2,500CAD 900 – CAD 1,900CAD 1,200 – CAD 2,800
Home AdditionsCAD 55,000 – CAD 140,000CAD 55,000 – CAD 85,000CAD 85,000 – CAD 140,000
PaintingCAD 4,800 – CAD 14,400CAD 3,600 – CAD 7,200CAD 7,200 – CAD 14,400
Patio CoversCAD 15,000 – CAD 45,000CAD 15,000 – CAD 28,000CAD 28,000 – CAD 45,000
Pressure WashingCAD 320 – CAD 960CAD 240 – CAD 500CAD 500 – CAD 960
Siding ReplacementCAD 14,900 – CAD 34,700CAD 14,900 – CAD 22,000CAD 22,000 – CAD 34,700
Stucco and StoneCAD 27,000 – CAD 80,000CAD 25,000 – CAD 45,000CAD 45,000 – CAD 80,000
Vinyl Deck MembraneCAD 4,000 – CAD 12,000CAD 3,000 – CAD 6,000CAD 6,000 – CAD 12,000
Window and Door CappingCAD 1,500 – CAD 4,000CAD 1,500 – CAD 2,500CAD 2,500 – CAD 4,000
Windows and DoorsCAD 6,200 – CAD 18,600CAD 5,000 – CAD 10,000CAD 10,000 – CAD 18,600
These figures are estimates based on general market knowledge and reflect typical market ranges at the time of publication. Actual quotes may vary depending on unique job specifics, location, and project timing.

Enhance Your Curb Appeal

Thornhill homes often have mismatched repairs, like siding patches that don’t match and trim in different shades. A single, well-done exterior painting job from Paragon Exteriors can fix these issues and give your home a fresh look.

We prepare surfaces carefully so the new paint can handle Thornhill’s wet winters. This creates a smooth, moisture-resistant layer that improves curb appeal and protects your siding for years.

Strong Decks and Railings

Many decks in Thornhill feel weak and have railings that shake. Paragon’s decks and railings service replaces damaged parts and installs sturdy guards, making your outdoor space safe again.

We match new decking to your home’s exterior style, just like we do with siding and trim. A solid, well-built deck expands your living area and withstands coastal rain without needing constant repairs.

Siding Installation Techniques

In Thornhill, we install fiber cement and engineered wood siding using corrosion-resistant fasteners and polyurethane sealants at the joints. We create a rainscreen cavity behind the siding to keep it separate from the water-resistive barrier. This setup allows moisture to drain and dry, keeping the wall sheathing dry during long winter rains.

For windows and doors, we use sill pans and self-adhered flashing tape that overlaps the building wrap. These details help direct water away from vulnerable areas, preventing leaks. Every exterior paint job includes careful caulking of all trim joints before applying two coats of vapor-permeable acrylic latex.

Moisture Management in Thornhill

Thornhill’s maritime climate needs exterior systems that handle moisture from rain and indoor vapor. Our assemblies include a drained and vented rainscreen system behind the cladding. This system helps balance air pressure and reduces suction that can pull water into seams. A continuous weather-resistive barrier overlaps flashing at all horizontal transitions, following the principle of gravity-driven drainage.

Deck structures use ledger boards attached with through-bolts and standoff spacers. This design creates a gap between the wood and the foundation wall. Flashing is placed under the siding and over the ledger to direct water away from the rim joist, preventing rot. For exterior painting, we prepare surfaces by removing mill glaze and chalk, allowing coatings to stick well and breathe, which reduces blistering from trapped vapor.

Thornhill Bylaw Requirements

In Thornhill, the Thornhill Zoning Bylaw No. 194 from the Regional District of Kitimat-Stikine requires a development permit before starting any exterior work if the home is in a designated Development Permit Area. This includes additions or exterior construction. Homeowners should check if their property is in an affected area before planning siding or deck work.

For exterior projects that need a permit, the Development Procedures Bylaw No. 613, 2012 requires the owner to apply to the regional district before construction begins. Some additions or exterior structures may also need a Building Declaration and Siting Approval. All paperwork should be completed before starting deck or addition work.

The Noise Control Bylaw No. 313, 1991 from the Regional District of Kitimat-Stikine regulates construction noise in Electoral Areas A, B, C, and D. However, the official bylaw list does not include Thornhill/Electoral Area E. Therefore, it does not apply to exterior remodeling work in Thornhill.