Strataline
Call (416) 471-5999
Finished glazed patio door integrated into the brick exterior beside an Aurora pool deck.

DOORS · WINDOWS · CUTOUTS

Exterior doors, replacement windows and custom wall openings.

Replace an entrance, upgrade drafty or outdated windows, or create a new opening where there is none. Strataline coordinates the product, opening, sealing, trim, drywall and paint so the project looks complete when we leave.

Three complete services

The right scope for the opening.

Start with the product, the existing conditions and the finish work needed around it.

Black double entry doors with decorative glazed panels set in a brick wall.

Exterior Doors

Upgrade the entrance with a properly measured and installed exterior-door system, completed with the threshold, hardware, sealing and surrounding trim.

  • Entry doors
  • Patio and garden doors
  • Sidelites and transoms
  • Threshold and weather-sealing work
  • Interior and exterior finishing
Explore Exterior Doors
Black-framed window installed in a light-coloured exterior wall.

Replacement Windows

Replace drafty, fogged, damaged or outdated windows using the installation method appropriate for the existing frame and opening.

  • Retrofit replacement
  • Full-frame replacement
  • Perimeter insulation and sealing
  • Jamb and casing work
  • Drywall and paint transitions
Explore Replacement Windows
Aurora brick exterior during the window-to-patio-door conversion with the full-height opening prepared.

Cutouts & New Openings

Create a new opening, enlarge an existing one or convert a window into a door, with the construction and finishing completed on both sides of the wall.

  • New exterior-door openings
  • Window-to-door conversions
  • Enlarged door or window openings
  • Garage-to-house entrances
  • Framing, sealing, trim, drywall and paint
Plan a New Opening
White entry door and sidelight viewed from a finished foyer.

Exterior Doors

A better entrance, completed on both sides.

Upgrade curb appeal, comfort and daily operation with an exterior-door system measured for the opening and finished as part of the home—not just a door slab set in place.

  • Entry, patio and exterior-door configurations
  • Sidelites, transoms, thresholds and selected hardware
  • Perimeter insulation plus air and water sealing
  • Interior jambs, casing and exterior trim
  • Paint and adjacent finish transitions where quoted
View Exterior Door Options
Finished living room with a bay window, light-coloured sofa and smooth ceiling.

Replacement Windows

A planned replacement and a finished opening.

Replace windows affected by drafts, air leakage, failed or fogged insulated glass, difficult operation, damage or an outdated design with a method suited to the opening.

  • Retrofit replacement when retained frames are suitable
  • Full-frame replacement when more of the opening must be addressed
  • Perimeter insulation, air sealing and exterior weather protection
  • Interior jamb and casing transitions
  • Drywall and paint transitions where included in the scope
Explore Window Replacement

Shopping for new windows? Browse styles, compare double- and triple-pane glass, and build your quote request.

Browse New Windows
Head-on exterior view of the original bedroom window before conversion.

Cutouts & New Openings

Need an opening where there isn’t one?

Create a new route, change how an existing opening works or make it larger, with the construction and finish transitions coordinated around the new door or window.

Window-to-door conversions

Turn a useful window location into direct access to a yard, landing or deck.

New and enlarged openings

Add a new exterior entrance or enlarge an existing door or window opening.

Garage-to-house entrances

Create a more direct daily route where the property conditions support the work.

  • Framing and opening preparation
  • Interior and exterior transitions around the new unit
  • Threshold, flooring, landing or deck relationships
  • Trim, drywall and painting where included
  • Concealed conditions documented before additional work proceeds
Request an Opening Review

LARGER WINDOW OPENINGS · WOODBRIDGE

Changing the brickwork changed the window possibilities.

Six small arched windows were replaced with three larger rectangular windows. We protected the roof below, altered the brick openings and finished the installation with new sills, custom aluminum and colour-matched sealant.

Explore the six-to-three window conversion
Woodbridge house after six small upper-floor windows were replaced with three larger rectangular windows.
Prepared rectangular brick opening during the Woodbridge window enlargement.
Brickwork removed to form the larger rectangular opening.

Featured project · Aurora

A bedroom window became a direct route to the pool deck.

The original window provided a view of the backyard but no direct access. Strataline enlarged the opening, installed a full-height glazed door and completed the transition on both sides of the wall.

  • Existing window removed and opening extended
  • New glazed exterior door installed
  • Interior and exterior transitions completed
View the Aurora Conversion
Interior view of the original Aurora bedroom window before the patio-door conversion.
Before Original bedroom window facing the deck
Interior view of the finished full-height glazed patio door in the Aurora bedroom.
After Finished full-height glazed door
Interior wall in the Thornhill home before a doorway to the attached garage was created.
Before
Finished white entrance door viewed from inside the Thornhill home.
After

Featured project · Thornhill

A direct entrance added between the garage and the home.

The new route solved a daily circulation problem. Strataline coordinated the opening and door system with the rooms on both sides, then completed the interior finishing as part of the renovation.

New garage-to-house openings require site-specific review and may involve permit, fire-separation and hardware requirements.

View the Thornhill Garage Entrance
Head-on exterior view of the finished glazed patio door beside the Aurora pool deck.
Completed glazed patio-door opening with the surrounding exterior transitions finished at the Aurora pool deck.

COMPLETE OPENING RENOVATION

The unit is only part of the finished result.

Strataline can coordinate the construction, sealing and finish work around the door or window, so the project does not stop at a newly installed frame surrounded by unfinished edges.

Opening and framing

Prepare, correct or rebuild the opening according to the quoted replacement or construction method.

Exterior water management

Coordinate the sill or threshold, perimeter sealing and exterior transitions that direct water away from the opening.

Insulation and air sealing

Insulate and seal the perimeter before the jambs and trim close access to the opening.

Jambs, casing and drywall

Complete the specified jamb extensions, casing, drywall repairs and connections to nearby interior trim.

Exterior transitions

Complete the quoted capping, trim, siding or masonry transitions around the new assembly.

Paint and final detailing

Prepare and finish the connected surfaces included in the proposal, check operation and leave the work area clean.

Discuss the Complete Opening

PROJECT DEFINITION

Know what is included before the old unit comes out.

A useful proposal identifies the selected product, the installation or construction method and the finish work required around it. It also records what remains, what is removed and how unexpected concealed conditions will be handled.

Product and configuration

Record the assembly that will be measured, approved and ordered.

  • Door or window type
  • Dimensions and configuration
  • Material, colour and finish
  • Glass or glazing selection
  • Hardware and accessories
  • Product allowance when a final selection is pending

Opening and installation

Define how the existing condition becomes the approved opening.

  • Retrofit, full-frame or new-opening method
  • Elements being retained and removed
  • Framing or opening preparation
  • Insulation and perimeter sealing
  • Threshold, sill and exterior water-management details
  • Relationships to nearby floors, landings or decks

Finishing and responsibilities

State the finish condition, exclusions and project responsibilities.

  • Jamb extensions and casing
  • Drywall and paint
  • Exterior trim, capping, siding or masonry transitions
  • Debris removal and cleanup
  • Known exclusions
  • Permit, drawing or engineering responsibilities
  • Procedure for concealed damage or changed conditions

From first review to completion

Four connected stages, one approved scope.

  1. 01

    Initial project review

    Review interior and exterior photographs, the desired result, the property location and the conditions around the opening.

  2. 02

    Site measure and scope confirmation

    Confirm dimensions, access, retained finishes, installation method and any opening-construction requirements that can be identified before removal.

  3. 03

    Product approval and scheduling

    Confirm the selected product or allowance, written scope, known exclusions, ordering requirements and installation schedule.

  4. 04

    Protected installation and walkthrough

    Protect the occupied areas, complete the approved work, check operation and review the finished opening with the homeowner.

If concealed rot, water damage or another unexpected condition is exposed after removal, Strataline documents it and reviews the required correction before work outside the approved scope proceeds.

CLIENT REVIEWS

What homeowners say about working with Strataline.

Verified feedback from clients across the GTA, collected from Google and Facebook.

1–3 of 15

Google review

Max and his team at Strataline have done multiple home improvement projects for us, including stair refinishing, popcorn ceiling removal, new flooring and interior painting. From the start their team was professional and punctual.

Read full review

Krista Singh

Google review

The Popcorn removal was excellent and a very clean process. They also transformed our stairs from boring oak to a much more modern look. They handled repainting of the whole house and replacement of old tile floors with a beautiful new one.

Read full review

John Seigel

Richmond Hill

Google review

Max of Strataline Inc. did an exceptional job creating 1) a custom inside railing for a winding grand staircase and 2) installing outdoor railings.

Read full review

D Kruger

Thornhill

Google review

We had great experience working with Max. He was very attentive to all our concerns and requests, easy communication and quality of workmanship is outstanding!

Read full review

Jet Pro

Google review

Amazing team, they painted my entire home , extremely attentive to the details, they cover and mask everything to avoid dust and mess ( I am super picky and OCD and hard to please but Galina and Maxim nailed it).

Read full review

Andriy Fedorenko

Innisfil

Google review

Excellent services: customer service, expertise, pricing policy. Impressive scheduling and delivering services by expected date of completion.

Read full review

Mykhailo Tvorysh

Google review

We had an excellent experience working with Maxim and Strataline Inc. Installing and perfectly matching a custom stain for our oak treads was no small task, and the addition of the square posts made it an even greater technical challenge—but everything was executed flawlessly.

Read full review

Taras Burban

Google review

WOW! Just WOW! Max removed all the popcorn from our 1800 sq ft town home, repainted from top to bottom plus did some carpentry repairs on our floors…and the final result is spectacular!

Read full review

Lani Selick

Google review

Maxim at Strataline did a very professional job in removing our hallway popcorn/stucco ceiling. The end result was a completely smooth surface and not only that, they totally sealed off the area so absolutely not dust penetrated other areas of the house.

Read full review

Virginia Coppola

Newmarket

Facebook review

My husband and I are unbelievably happy with the work that Max and his team did on our ceilings in the house. The professionalism of this team is incredible.

Read full review

Maggie Mackenzie

Mississauga

Read All 15 Reviews

Door, window & opening FAQ

Questions about products, openings and a complete installation.

Browse all 25 answers by service, from product selection and replacement methods to opening construction, finish work and written quotes.

Exterior Doors

Do you supply exterior doors as well as install them?

Yes. Strataline can measure, supply and install the selected exterior-door system, with the product and installation scope confirmed before ordering. The written proposal identifies the door, frame, glass, hardware and surrounding finish work that apply to the project. Any item supplied by the homeowner is recorded separately.

What types of exterior doors can Strataline install?

Projects may include front and side entry doors, patio or garden doors, sliding doors, and systems with sidelites or transoms. Available configurations depend on the measured opening, exposure, access and the selected product line. The complete assembly and connected finishes are reviewed before the order is approved.

Can an exterior door be replaced without changing the existing opening?

Often, when the existing opening is suitable for a replacement system of the same general size and configuration. The frame, threshold, surrounding wall and water-management details still need review because a like-for-like opening can require insulation, sealing or finish repairs. Enlarging or relocating the entrance is a separate opening-construction scope.

Can you add, remove or change sidelites and transoms?

Potentially. A different sidelite or transom arrangement changes the overall door system and may affect framing, interior casing, exterior finishes and the usable entrance width. Strataline reviews the measured opening and proposed configuration before confirming feasibility, product details or any required approvals. Final ordering dimensions are taken only after that review.

Do you install patio and garden doors?

Yes, patio and garden door systems can be included where the opening and selected product support the installation. The review considers operation, glass, threshold, exterior water management and the finish work on both sides. Replacing an existing unit and creating a new patio-door opening are quoted as different scopes.

What finish work can be included around a new exterior door?

Depending on the project, the proposal may include jamb extensions, casing, drywall repairs, paint, exterior trim or capping, sealing and threshold transitions. Masonry, siding or nearby flooring work is included only when it is specifically identified. The quote should state the condition in which each side of the opening will be left.

Replacement Windows

Do you replace individual windows as well as larger window packages?

Yes. A project may involve one problem opening or a coordinated group of replacement windows. Quantity affects product ordering, access, protection and scheduling, but each opening still needs its own dimensions and condition review. The proposal identifies the windows and finish work included in that phase.

What is the difference between retrofit and full-frame replacement?

Retrofit or insert replacement keeps a suitable existing main frame and can preserve more of the surrounding finish. Full-frame replacement removes the old frame to expose more of the opening and allows jambs, trim and perimeter details to be rebuilt as specified. The existing condition determines the recommendation; preserving a deteriorated frame is not an advantage simply because less finish is disturbed.

Replacement Windows

How do you decide whether retrofit or full-frame replacement is appropriate?

The decision starts with the condition of the retained frame, perimeter, sill and surrounding finishes. Retrofit can be suitable when the existing main frame is sound and the intended result works within it; full-frame replacement exposes more of the opening when deterioration, configuration changes or finish requirements call for broader work. The recommended method is confirmed after the opening is reviewed.

What causes fogging or moisture between window panes?

Persistent moisture between panes usually indicates a problem within the sealed glass assembly rather than condensation on an exposed room-side surface. The sash, frame and glazing details determine whether a sealed unit can be replaced or whether the complete window should be considered. The cause and practical repair are assessed before a full replacement is recommended.

Can the size, style or operating type of a window be changed?

An operating style can sometimes change within a suitable existing opening, subject to available product sizes, ventilation, egress and clearance requirements. Changing the opening size or location adds construction, exterior transitions and possible approval requirements. Strataline separates ordinary window replacement from opening construction when defining the scope.

What happens to the interior casing, jambs and paint during window replacement?

That depends on the installation method and the condition of the retained finishes. A retrofit may preserve more casing and jamb material, while full-frame removal can require new extensions, trim, drywall repairs and paint transitions. The proposal identifies what remains, what is removed and the finish condition included around each window.

Cutouts & New Openings

Can you turn an existing window into an exterior door?

Potentially, after the wall, structure, nearby services, threshold and exterior landing or deck are reviewed. The Aurora project shows one completed window-to-door conversion, but every property and opening has different constraints. Construction and approval responsibilities are defined before the opening is altered. Nearby floor and wall transitions are part of the same assessment.

Can you create a door or window opening where there is none?

Potentially. A new opening requires site-specific review of the wall, structure, services, exterior finish, water management and the conditions on both sides. Drawings, engineering or permits may be required, and feasibility cannot be confirmed from a photograph alone. The result must also connect safely to adjacent floors or exterior access.

Can you enlarge or relocate an existing opening?

Yes, when the proposed location and property conditions support the work. Enlarging or relocating an opening can affect structural support, wiring, plumbing, HVAC, brick or siding, drainage and interior finishes. Those factors and any required professional or municipal review are identified before construction proceeds. The quoted method records how both sides of the altered wall will be finished.

Can you add an entrance between an attached garage and the house?

Potentially, after the proposed location, wall construction, floor levels and applicable separation and hardware requirements are reviewed. The Thornhill project shows a completed garage-to-house entrance, but it does not establish feasibility for every home. The door system, approvals, steps and finish work must be defined for the specific property.

Do cutouts or opening changes require drawings, engineering or permits?

They may. The need depends on the location, structural changes, municipal requirements and the type of opening being created or enlarged. The written scope should identify who is responsible for drawings, engineering, permits and inspections where they are required. Ordinary replacement and structural opening construction are not treated as the same approval question.

What happens if wiring, plumbing, HVAC, brick or another obstruction is found near the proposed opening?

Known obstructions are considered during the initial review and site measure, but concealed conditions may not be visible before work begins. The opening design may need to change, or a qualified trade may need to reroute a service where permitted. Strataline documents newly exposed conditions and reviews any work outside the approved scope before proceeding.

What does the approximately $2,000 brick-cutout example include?

A simple cut-only exterior opening through brick may be under approximately $2,000 when the cut is straightforward and no structural complication is discovered. This example includes no brick return, no supplied door or window, no unit installation, and no trim or interior finishing.

It is cut-only work, not the price of a complete installed exterior opening. The wall, support requirements and proposed scope must be reviewed before the job is quoted.

Planning, Installation & Quotes

What photographs should I send for an initial project review?

Send a clear interior view, a clear exterior view, a wider photograph showing the nearby wall or room, and close-ups of damage or problem areas. Include the property city and describe the result you want, not only the existing problem. Photographs support the first review but do not replace a site measure.

Is a site visit and final measurement completed before ordering?

Yes, when Strataline is supplying a made-to-order door or window, final measurements and relevant opening conditions are confirmed before the product order is approved. The review also records access, retained finishes and the installation method. Preliminary photographs or homeowner measurements are useful for planning but are not treated as final ordering dimensions.

How long does a typical door, window or cutout project take?

The timeline depends on product lead time, the number of openings, access, the installation method and the finish work included. A straightforward replacement may require less on-site time than a new or enlarged opening with several construction stages. Expected ordering and site durations are discussed after the scope and product are defined.

Can the work be completed while the home is occupied?

Many projects can be completed in an occupied home with a protection and access plan. The crew coordinates removal so openings are not left unnecessarily exposed and manages dust around cutting, drywall and finish work. The property conditions, weather and project length determine any room-access limits that need to be discussed in advance.

What happens if rot or water damage is found after removal?

Strataline photographs and documents the exposed condition before work outside the approved scope proceeds. The source and extent of the damage must be understood so the required correction can be reviewed with the homeowner. Added work, cost or schedule changes are confirmed rather than concealed behind the new unit.

What should the written quote include?

The quote should identify the selected product or allowance, dimensions and configuration, installation or construction method, retained and removed elements, and the sealing and finish work included. It should also state known exclusions, cleanup responsibilities, approval responsibilities and how concealed conditions will be handled. This lets the homeowner compare complete outcomes rather than product prices alone.

Start with the opening

Send a few photos and tell us what you want to change.

For the first review, include an interior view, an exterior view, your city and the result you want. Photos can be sent by text to (416) 471-5999.

Project inquiry

Tell us about your project

A few details will help us understand the scope before we contact you.

Step 1 of 2 — Project

We’ll review your details and contact you.

Prefer to talk? Call (416) 471-5999 Text (416) 471-5999

Step 2 of 2 — Contact

Your contact details

Attach photos or files (optional)

Photos are automatically resized for sending. Your originals stay unchanged.

Up to 5 files · JPG, PNG, WebP, HEIC/HEIF, PDF or DOCX. Original photos: up to 25 MB each. PDF/DOCX: up to 3.5 MB combined, sent unchanged. Prepared files share 3.5 MB of sending space.

    Your information and private attachments are used to respond to your project inquiry. Privacy policy · Project terms

    Project inquiry

    Tell us about your project

    A few details will help us understand the scope before we contact you.

    Step 1 of 2 — Project

    We’ll review your details and contact you.

    Prefer to talk? Call (416) 471-5999 Text (416) 471-5999

    Step 2 of 2 — Contact

    Your contact details

    Attach photos or files (optional)

    Photos are automatically resized for sending. Your originals stay unchanged.

    Up to 5 files · JPG, PNG, WebP, HEIC/HEIF, PDF or DOCX. Original photos: up to 25 MB each. PDF/DOCX: up to 3.5 MB combined, sent unchanged. Prepared files share 3.5 MB of sending space.

      Your information and private attachments are used to respond to your project inquiry. Privacy policy · Project terms