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Welcome to Sendal
Consistent comfort, healthy air, and protection from moisture problems, without guesswork.

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Feel comfortable. Live healthier. Breathe better– automatically.

Sendal Breathe™ is an intelligent home control software platform that actively manages home comfort, indoor air quality, and moisture—working with the HVAC systems, sensors, and IAQ products you already trust.

Most homes rely on fixed ventilation runtimes and disconnected controls. Sendal replaces assumptions with real-time intelligence—continuously adjusting how a home breathes based on actual conditions inside and out.

Comfort is more than temperature, it’s balance.

Sendal intelligently manages temperature and humidity together, preventing swings that lead to discomfort, condensation, or wasted energy.

Improved comfort
Coordinated HVAC and dehumidification
Seasonal and climate-aware adjustments
"The Breathe service approach to managing energy and indoor air quality is exactly in line with our path to an intelligent home."
Stefan Orenda, CTO Mandalay Homes

Actively manages indoor air quality, not just airflow.

Sendal coordinates ventilation, filtration, and outdoor air intake based on real-time indoor and outdoor conditions.

Eliminates over-ventilation
Responds to pollutants and moisture
Performance-driven, not occupancy-based
"The [Breathe] system is very automated and does not require any direct management on my part, which is great. It has been working excellently and I frequently notice the fans and fresh air system automatically turned on when the air quality has dropped and it makes a big difference."
Mark, Phoenix AZ
"Sendal improved the IAQ and reduced energy usage, making conversations with customers about HVAC options an easy discussion. Clients don’t want to hear about the parts and pieces, they want to know they are building a home with the best possible air quality."
Jay, Builder, Cape Cod MA

Protects the home before problems appear.

Sendal continuously monitors conditions that lead to mold, moisture damage, and unhealthy living environments, and acts before they become expensive failures.

Continuous monitoring
Predictive alerts
Measurable IAQ outcomes
"I worked with Sendal to get a monitoring system in place that had the ability to control my ventilation system based on the actual IAQ...the IAQ in our house has improved dramatically."
Dodson Harper, PE SE, Resource Engineering Group

Featured Video and Podcast

Sendal News

The AI Bubble Burst and Why Sendal Breathe Is What Comes Next
November 24, 2025

The AI hype cycle has peaked and is now recalibrating, revealing the need for technologies that deliver real, lasting value. Sendal Breathe exemplifies this shift by focusing on autonomous action and contextual intelligence to enhance indoor air quality and energy efficiency without homeowner intervention. Gartner emphasizes that the future lies in intelligent agents that operate independently, showcasing Breathe's capability to anticipate and control environmental conditions effectively. As the AI landscape stabilizes, solutions like Breathe that simplify everyday life and provide measurable impact will emerge as the winners, proving their worth during this correction phase.

Why Outdoor Air Quality Matters for Indoor Air Quality Management
December 30, 2024

When managing indoor air quality (IAQ), it's easy to focus exclusively on what happens inside your home. However, outdoor air quality plays a critical role, especially when it comes to fine particulate matter, or PM2.5. These microscopic particles, produced by sources like vehicle emissions, industrial activity, and wildfires, can enter your home through ventilation, open windows, and even tiny cracks in the building envelope.

Improving ASHRAE – How Sendal defines IAQ
September 7, 2023

Extensive research has pinpointed that key indoor contaminants result from activities within the home—cooking, bathing, vacuuming, and more—contributing to subpar air quality. Enter Sendal's Breathe service, a forward-looking solution that anticipates these factors and adapts ventilation and filtration accordingly.