Frequently Asked Questions (FAQs)

We handle a wide range of systems, including furnaces, heat pumps, air conditioners, tank and tankless water heaters, boilers, and electrical panels. We also specialize in energy-efficient upgrades and custom solutions for residential and commercial properties.

Yes! Day & Nite is available 24/7 for emergency repairs. Whether it’s a burst pipe, furnace breakdown, or AC failure, we’re here whenever you need us—day or night.

Our Red Carpet Service reflects our commitment to professionalism and care. Technicians arrive in uniform, use a signature red mat to organize tools, and leave your space clean and damage-free. It’s expert service with a personal touch, and it comes with a lifetime workmanship guarantee.

We proudly serve Seattle, WA and surrounding communities, including King and Snohomish Counties. Whether you’re a homeowner or a business, our team is ready to help with all your plumbing, heating, cooling, and electrical needs.

Yes! A well-maintained HVAC system runs more efficiently, which can significantly reduce energy consumption and monthly utility costs.

Maintenance includes checking refrigerant levels, cleaning coils, inspecting electrical components, replacing filters, and testing system efficiency to ensure safe and reliable operation.

We recommend having your HVAC system inspected and serviced twice a year—once in the spring for cooling and once in the fall for heating—to ensure peak performance and catch issues early.

Typically the home owner can replace filters, but a true maintenance on heating or air conditioning equipment really needs a profession with the right tools and experience to truly tune the furnace and perform the proper safety and operation inspections.

Yes, but installation may involve upgrades to gas lines, venting, or electrical systems. A professional can assess your setup and provide a tailored plan.

Yes. Annual maintenance is recommended to descale mineral buildup and keep the unit running efficiently, especially in areas with hard water.

With proper maintenance, a tankless water heater can last 20 years or more, compared to 10–15 years for a traditional tank unit.

Yes, if properly sized. A professional will consider your household size, water usage, and flow rate to ensure your unit meets demand without loss of pressure or heat.