Home Services in Seattle

At Brennan Heating, Air Conditioning, Plumbing, and Electrical, we provide year-round home comfort solutions.

We service and install furnaces, air conditioners, and heat pumps. As a trusted Lennox Dealer, we offer energy-efficient, dependable products, and our energy consultants work with you to select a system that fits your needs and budget.

Here’s how we support you:

• Free consultations. We provide a free, no-obligation estimate and transparent pricing before work begins.
• Flexible financing options. Financing is available through GreenSky, with loans provided by Synovus Bank and subject to credit approval.
• Comprehensive warranties. Coverage is available for your new systems and our workmanship.
• 24/7 support. Assistance is available for urgent home comfort problems.

Our technicians provide ongoing service to keep your systems running smoothly. We’re proud to serve households across the Western Washington area, including Kent, Renton, and South Hill.

Seasonal HVAC Maintenance

ENERGY STAR recommends having a contractor check your cooling system before spring and your heating system before fall. Seasonal HVAC maintenance gives each system attention before its heaviest period of use.

A professional check-up includes:

• Checking thermostat settings
• Tightening electrical connections
• Lubricating moving parts
• Cleaning cooling-system coils
• Checking refrigerant levels

The exact maintenance steps depend on the equipment in your home. A professional inspection determines what needs adjustment, cleaning, or repair.

HVAC Repair vs. Replacement

Age, comfort, efficiency, and repair frequency all matter when deciding whether to repair or replace HVAC equipment. ENERGY STAR advises scheduling a professional evaluation when equipment is more than 10 years old or no longer keeps your home comfortable.

A central air conditioner typically lasts 15 to 20 years, according to the U.S. Department of Energy. Frequent repairs or declining performance from cooling equipment more than 10 years old are reasons to consider replacement. Newer ENERGY STAR certified equipment can also provide efficiency savings compared with systems installed five to 10 years earlier.

Air Filter Upkeep Between Service Visits

Inspect your HVAC air filter each month, especially during periods of heavy winter or summer use. Clean or replace it when it’s dirty, following the equipment and filter manufacturers’ directions.

A dirty filter restricts airflow and makes a furnace, heat pump, or central air conditioner work harder. That restriction raises energy use, allows dust to build up, and contributes to equipment damage or early system failure. Regular filter care is one of the most practical steps you can take between professional service visits.