Interior design that elevates how you live and work

From concept to construction details, Irthco delivers cohesive spaces with purpose, performance, and lasting beauty across the USA.

Featured project

Concept to completion

Unified process with a single point of accountability from discovery through installation.

Signature aesthetics

Distinctive palettes, lighting, and textures tailored to your brand or lifestyle.

Healthy materials

Selection guidance that prioritizes durability and indoor air quality.

On-time delivery

Milestone schedules with proactive vendor coordination and site supervision.

Clear guarantees

Defined scope, warranty support, and service windows after handover.

450+
Projects delivered
4.8/5
Average rating
22
States served
12 yrs
Industry experience

Design that works hard for you

Design is not an ornament; it is a system that supports how people live and how organizations operate. At Irthco, we begin with a careful discovery process to understand your routines, constraints, values, and aspirations. We map daily flows, acoustic challenges, and lighting conditions to create a plan that reduces friction and enhances well-being. Our team synthesizes research with creativity, turning constraints into opportunities that elevate both function and expression.

Residential clients rely on us for calm, characterful environments where cooking, working, and relaxing coexist seamlessly. We optimize storage and circulation while curating materials with tactile warmth and proven durability. For workplace and hospitality projects, we coordinate adjacencies that support teams, guests, and back-of-house efficiency. We design lighting for clarity and mood, specify furnishings for longevity, and detail joinery that stands up to real use.

Because outcomes matter, we provide build-ready documentation, procurement support, and site reviews that keep projects predictable. You will see transparent budgets, value-engineering options, and phased roadmaps when timelines need to shift. After installation, we offer post-occupancy tuning to refine comfort and performance. When you call us at (646) 809-2745, you reach a team that owns the result from first sketch to final punch list.

Curated interior

What clients say

Client
Ava Mitchell
Homeowner
4.5/5

Irthco transformed our townhouse with a layout that finally makes sense. Materials feel luxurious yet hold up to daily life.

Client
Liam Carter
Café Owner
5.0/5

Service was organized and fast. The team delivered precise drawings, and the built space matched the renderings perfectly.

Client
Sophia Nguyen
Operations Lead
4.7/5

The workplace redesign improved focus rooms and collaboration areas. Staff satisfaction rose, and meetings run smoother.

Client
Ethan Brooks
Developer
4.6/5

Budget stayed on track thanks to clear options and supplier coordination. We appreciated the honest timelines.

Client
Grace Kim
Marketing Director
4.8/5

The brand expression is consistent across our lobby, signage, and amenities. It feels intentional without being loud.

Quick project estimator

Payment methods

  • Major credit/debit cards
  • Online invoice via secure processor
  • Project-based milestones and retainers
  • Installment plans available on qualified scopes

Service guarantees

  • Scope and deliverables documented before production
  • Two design refinement rounds included in standard packages
  • Warranty support on specified fixtures and finishes per manufacturer

Trusted by

Northline HotelsCivic LabsUrban HearthHarbor FoodsAtlas Realty

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Where we work