Ontario-facing company
Haven Haus
Ontario-facing supplier and distributor for the compared Innotech path.
ManufacturerInnotech Windows + Doors
1, 2, 3Canadian manufacturer of the Defender 76TS and Defender 88PH+ window systems.
Company comparisons
Ontario company comparison · Audited 2026-08-08
Haven Haus vs. InterHaus: Innotech and Internorm Windows in Ontario
Compare the Ontario supplier relationship, manufacturers, window-system range, published evidence, and quote questions for Haven Haus/Innotech and InterHaus/Internorm.
The short answer
There is no honest brand-only winner.
Haven Haus and InterHaus both offer high-performance inward-opening window paths in Ontario, but the underlying offers are not interchangeable. Haven Haus centres its window range on Canadian-made Innotech Defender systems. InterHaus states that it distributes Austrian-made Internorm systems and also offers a broader European material portfolio. The right shortlist depends on the exact system, material, tested configuration, local scope, and written quote—not the company name alone.
Scope: This page compares the Ontario supplier paths centred on Haven Haus/Innotech and InterHaus/Internorm. It does not compare every brand InterHaus offers, every possible configuration, installation workmanship, project price, lead time, or warranty outcome.
Who is being compared
Supplier first. Manufacturer second.
Keeping these roles separate prevents a local service claim from being mistaken for a product claim—and vice versa.
At a glance
What the reviewed sources establish.
Source numbers follow every factual cell. “Not established” records an evidence gap; it is not a negative product claim.
| Decision point | Haven Haus / Innotech | InterHaus / Internorm |
|---|---|---|
| Ontario-facing relationshipThese are company self-statements. Confirm the contracting party and every responsibility in the proposal. | Haven Haus identifies itself as the Ontario distributor for Innotech windows and doors.1 | InterHaus identifies itself as an official Internorm dealer in Canada and an Ontario supplier.6, 7 |
| Manufacturer locationManufacturing location does not by itself establish project fit or quality. | Innotech states that its windows and doors are made in Canada.2, 3 | Internorm states that it manufactures exclusively in Austria.9 |
| Window-system range reviewedThis row describes the published ranges reviewed, not every configuration available in a quote. | Defender 76TS and Defender 88PH+ high-performance PVC-based systems, with system-specific glazing, reinforcement, and finish options.2, 3 | Internorm uPVC, uPVC-aluminium, and timber-aluminium window families; the Ontario catalogue includes multiple KF, KV, HF, and HV systems.6, 7, 9 |
| Canadian test documentation foundNot established in reviewed sources does not mean unavailable or non-compliant; it means the document was not verified for this comparison. | Innotech publishes NAFS and NFRC summaries for named Defender 76TS configurations and tested sizes.3 | Equivalent NAFS and NFRC documentation for a proposed Internorm configuration was not established in the reviewed sources. Request it with the quote.6, 7 |
| PHI operable example — cool, temperatePassive House Component Database entries for two named operable configurations. Subtype, dimensions, frame details, glazing, and certification dates differ; the values are not a head-to-head whole-quote score. | Defender 88PH+ Pro tilt + turn: phB, Uw 0.77 W/(m²K), inward opening.4 | KF 410 P coupled window: phB, Uw 0.80 W/(m²K), inward opening.10 |
| PHI cold-climate operable exampleThis is a source-coverage distinction, not a claim that no other Internorm system or configuration qualifies. | Defender 88PH+ XI: phA, Uw 0.60 W/(m²K), inward opening.5 | A directly comparable cold-climate Internorm entry was not established in the reviewed sources.10 |
| Integrated shading path reviewedConfirm the exact glazing, controls, serviceability, and availability for the proposed unit. | No equivalent integrated-between-glass shading option was established in the reviewed Innotech sources.3 | InterHaus presents Internorm I-tec Shading and states that an operating example is available in its Oakville showroom.8 |
| Price, lead time, installation, and warrantyPublic brand pages cannot substitute for project-specific commercial terms. | Not established for a hypothetical project; confirm the exact written Haven Haus proposal and referenced manufacturer terms. | Not established for a hypothetical project; confirm the exact written InterHaus proposal and referenced manufacturer terms. |
Shortlist logic
Three useful next moves.
These are research paths, not endorsements or product rankings.
Start with Haven Haus / Innotech when…
Canadian manufacturing and configuration-specific NAFS, NFRC, and PHI evidence for the Defender range are central to your shortlist.
- Identify whether the quote uses Defender 76TS or Defender 88PH+.
- Match every performance value to opening type, size, glazing, and label.
- Confirm supply, delivery, installation, finishing, service, and warranty responsibility.
Start with InterHaus / Internorm when…
You want to explore a wider uPVC-aluminium or timber-aluminium portfolio, or an integrated shading path, through an Ontario Internorm distributor.
- Identify the exact Internorm family and configuration—not only the brand.
- Request the Canadian code, NAFS/NFRC, and PHI documents that apply to the offered unit.
- Confirm the contracting, installation, service, and warranty parties in writing.
Do not choose either path yet when…
The proposals use different opening schedules, omit tested configuration details, or bundle different delivery and installation scopes.
- Normalize quantities, dimensions, handing, colours, glazing, and hardware.
- List substitutions and exclusions line by line.
- Resolve unanswered scope and documentation questions before comparing totals.
Like-for-like quote checklist
Ask both companies for the same eight things.
Do this before comparing totals. A cheaper number with missing scope is not the same proposal.
- 01
Use the same opening schedule, dimensions, handing, and room references.
- 02
Name the manufacturer, product family, opening type, glazing build-up, spacer, reinforcement, finish, and hardware for every unit.
- 03
Attach NAFS and NFRC documents for the exact proposed configurations and identify the tested sizes.
- 04
Attach any Passive House certificate being relied on and match it to climate zone, subtype, material, and configuration.
- 05
Separate product supply, freight, delivery, site handling, installation, removal, disposal, interior/exterior finishing, and tax.
- 06
Identify who owns field measurement, shop-drawing approval, opening preparation, installation, commissioning, service, and warranty response.
- 07
Provide the written manufacturer and supplier warranty terms that apply to this project.
- 08
Record lead-time assumptions, quote expiry, payment schedule, change-order rules, and exclusions.
Direct answers
Questions people ask before the second quote.
Is Haven Haus or InterHaus better for Ontario windows?
There is no supportable universal winner. Haven Haus centres this comparison on Canadian-made Innotech Defender systems and publishes configuration-specific Canadian test evidence through Innotech. InterHaus offers Austrian-made Internorm systems with a broader reviewed material portfolio and an integrated-shading path. Compare exact configurations and contracted project scope.3, 6, 9
What should I request from both companies before comparing price?
Use one opening schedule and ask each company for exact system and glazing identification, applicable NAFS/NFRC and Passive House documents, inclusions and exclusions, delivery and installation responsibilities, written warranty terms, lead-time assumptions, and payment/change-order rules.
Methodology
How this page stays fair.
Publicly accessible sources for the Ontario suppliers, manufacturer literature, and Passive House Component Database entries were reviewed. Claims are limited to what those sources establish as of the audit date.
- Company self-statements are attributed as self-statements.
- A value remains attached to its exact named system, subtype, climate zone, standard, unit, and source.
- Missing public evidence is labelled not established in reviewed sources, never converted into a negative product claim.
- No winner is assigned for price, performance, installation, service, or warranty without like-for-like project documents.
Sources
Read the evidence directly.
Last source audit: 2026-08-08. External pages may change after that date.
- 01Haven Haus — Tilt & Turn Windows in Ontario
Haven Haus self-description · Retrieved 2026-08-08 · Audited 2026-08-08
- 02Innotech Windows + Doors — Passive House Windows + Doors
Manufacturer literature · Retrieved 2026-08-08 · Audited 2026-08-08
- 03Innotech Windows + Doors — Defender 76TS Windows
Manufacturer product and test summary · Retrieved 2026-08-08 · Audited 2026-08-08
- 04Passive House Component Database — Innotech window entries
Independent certification database · Retrieved 2026-08-08 · Audited 2026-08-08
- 05Passive House Component Database — Defender 88PH+ XI
Independent certification database · Retrieved 2026-08-08 · Audited 2026-08-08
- 06InterHaus — High Performance European Windows and Doors
InterHaus self-description · Retrieved 2026-08-08 · Audited 2026-08-08
- 07Internorm by InterHaus — Windows & Doors catalogue 2025/26
Distributor-hosted manufacturer catalogue · Retrieved 2026-08-08 · Audited 2026-08-08
- 08InterHaus — Internorm I-tec Shading in Ontario
InterHaus product and showroom self-description · Retrieved 2026-08-08 · Audited 2026-08-08
- 09Internorm — Facts and Data
Manufacturer company facts · Retrieved 2026-08-08 · Audited 2026-08-08
- 10Passive House Component Database — Internorm KF 410 P
Independent certification database · Retrieved 2026-08-08 · Audited 2026-08-08
Compare a real proposal
Bring the documents—not just the totals.
We will start with the opening schedule, exact systems, test records, inclusions, exclusions, and responsibility map.
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