Heating & Cooling Maintenance

Our heating & cooling maintenance tips can help you keep your home cost efficient, safe & cozy.

S21 E19, Ross Trethewey discusses attic insulation with a homeowner

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Fixing Ice Dams on a Roof

Home technology expert Ross Trethewey helps a homeowner solve an ice dam issue with smart insulation practices that also improve the home’s efficiency.

Winter Home Maintenance Tasks

Keep your home in tip top shape by tackling these maintenance tasks this season.

Best Furnace Filters (2024 Guide)

In this round-up and comprehensive buying guide, we take a look at some of the best furnace filters on the market.

How Much Does a Furnace Cost?

If you need to repair or replace your furnace and are wondering about general furnace costs, keep reading for a detailed look at furnace types, pricing factors to consider, and common repair costs.

All About Furnace Replacement: Cost and When to Do It

Replacing a furnace is a big task with a big price tag. However, having a home warranty can go a long way toward minimizing furnace replacement costs.

How Often You Should Change Your Air Filter

Changing the air filters in your HVAC system is an essential practice that ensures clean air circulates throughout your home. In this article, we discuss the importance of changing an air filter and give you tips on how to do it.

Why Is My Air Conditioner Not Cooling?

Is your air conditioner not cooling? From refrigerant leaks to a malfunctioning compressor, these are five reasons why your air conditioner isn’t cooling and ways you can troubleshoot and prevent the issue.

Too Much Dust

Why is the house so dusty even when the air filters are clean?

How to Quiet Noisy Ducts

Is there a way to stop the banging from your metal ductwork? Richard Trethewey diagnoses the problem and points to some solutions

Home Heating Guide For Beginners

Heating is the most basic requirement of a house. Learn about the various types of home heating systems and how to maintain them.

How to Seal Leaky Ductwork

Improve the air quality and keep your home energy efficient by sealing your ducts.

Baseboard Heater Making Noise? Here’s How to Fix It

Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner diagnose and solve a baseboard hot water system that makes noise.

10 Handy Air Conditioning Tips

Beat the heat by having the cleanest, coolest, and most-efficient air conditioner on the block.

How to Install a Whole-House Dehumidifier

Ask This Old House plumbing and heating expert Richard Trethewey shows how to control humidity throughout the house all year round.

How to Repair a Frozen Air Conditioner

This Old House plumbing and heating expert Richard Trethewey shows how to prevent ice buildup from shutting down an air-conditioning system.

How to Clean a Window Air Conditioner

Stay cool and save money with five simple tasks–most done just once a year–that ensure your unit keeps working efficiently.

How to Fix Leaks in Air Ducts

This Old House host Kevin O'Connor and energy auditor Paul Scheckel find and fix leaky heating ducts

17 Fireplace Remodel Ideas

We rounded up our favorite ideas to help you update your fireplace for a more modern look.

9 Air Conditioner Maintenance and Care Tips

Regularly servicing your air conditioner helps keep costs down and your AC in excellent condition. Read on for more tips on keeping up with your AC’s maintenance.

What to Know Before Calling a HVAC Pro

Here’s what you need to know before hiring an HVAC contractor.