Beating the Heat: How to Protect Your Home and Property During This Week's DFW Heat Wave
If it feels like you’re living inside a convection oven this week, you’re not imagining it. A powerful high-pressure ridge has parked itself over North Texas, pushing afternoon highs into the 100–105°F range across Denton County and the greater DFW Metroplex, with heat index values climbing as high as 110–115°F. The National Weather Service has issued heat advisories that are expected to be extended day after day as this stretch continues, and forecasters say we could flirt with daily temperature records before the week is out.
For homeowners, extreme heat like this isn’t just uncomfortable — it’s hard on your house. Roofs, foundations, HVAC systems, and landscaping all take a beating when temperatures stay this high for this long. As your neighbors here at Seay Realty Group, we wanted to put together a practical guide to help you protect your biggest investment (and stay safe) until this heat wave breaks.
1. Give Your HVAC System Some Breathing Room
Your air conditioner is working overtime right now, and a breakdown in 105°F heat is nobody’s idea of fun.
- Change the air filter. A clogged filter forces your system to work harder and can lead to overheating or a frozen coil.
- Clear debris around the outdoor unit. Leaves, grass clippings, and shrubs restrict airflow. Give your condenser at least two feet of clearance on all sides.
- Set a reasonable thermostat gap. Rather than cranking the AC down 15–20 degrees below the outdoor temperature, aim for a gap of no more than 20 degrees. It eases strain on the system and helps prevent frozen coils.
- Schedule a tune-up if it’s struggling. If your system is running constantly or not keeping up, don’t wait — a service call now is cheaper than an emergency replacement in August.
2. Watch Your Foundation
North Texas clay soil is notorious for expanding and contracting with moisture changes, and prolonged heat and dry conditions can cause the ground around your foundation to shrink dramatically, leading to cracks and shifting.
- Water your foundation. A soaker hose running along the perimeter for 15–20 minutes every few days helps keep soil moisture consistent and reduces the risk of foundation movement.
- Check for new cracks in drywall, around door frames, or in the foundation itself, especially if this dry spell continues for weeks.
- Keep gutters clear so that when rain does return, water is directed away from your foundation rather than pooling next to it.
3. Protect Your Roof and Attic
Roofing materials, especially asphalt shingles, can soften and become more vulnerable to damage in extreme heat, and attics can reach dangerous temperatures that stress your entire home.
- Check attic ventilation. Proper airflow keeps attic temperatures down, protects roof decking, and takes pressure off your AC system.
- Look for signs of heat stress on shingles, such as curling, blistering, or granule loss, especially if your roof is older.
- Avoid roof work during peak afternoon heat — both for safety and because shingles are more prone to damage when soft.
4. Guard Against Fire Risk
Dry conditions paired with triple-digit heat significantly raise the risk of grass and brush fires across Denton County.
- Keep lawns watered or trimmed short — dry, overgrown grass is fuel.
- Clear dead vegetation, leaves, and debris from around your home’s foundation and any wooden structures like decks or fences.
- Never use outdoor grills, fire pits, or fireworks during burn bans, which are common during extended heat waves like this one. Check with Denton County for current burn ban status.
- Store gasoline, propane, and other flammables away from direct sun and heat sources.
5. Protect Outdoor Systems and Landscaping
- Water trees and foundation plantings deeply but infrequently — this encourages deep root growth and is more effective than frequent shallow watering.
- Check irrigation systems for broken heads or leaks that waste water and stress your water bill.
- Inspect exterior faucets and hoses for cracks, since heat can degrade rubber and plastic fittings over time.
- Give pets shaded, ventilated outdoor space with fresh water, and check on outdoor pets frequently — pavement and metal surfaces can cause burns.
6. Prepare for Power Interruptions
Grid demand spikes during extended heat events, and rolling outages or brief interruptions are possible.
- Keep a battery-powered or hand-crank radio and flashlights accessible.
- Have a cooler with ice packs ready to protect refrigerated medications or food during a short outage.
- Consider a surge protector for sensitive electronics, since power fluctuations are more common during high-demand periods.
- Know your home’s manual garage door release in case of an outage.
7. Don’t Forget the Human Side
A safe home starts with a safe household.
- Check on elderly neighbors and relatives, especially those who may not run their AC due to cost concerns.
- Never leave children or pets in vehicles, even for a few minutes — interior car temperatures can climb past 120°F within minutes in this heat.
- Stay hydrated and limit outdoor exertion to early morning or evening hours.
- Know the signs of heat exhaustion and heat stroke (heavy sweating, dizziness, confusion, nausea, or hot/dry skin) and seek help immediately if you or someone nearby shows symptoms.
The Bottom Line
Heat waves like this one put real stress on your home’s systems — from the roof down to the foundation. A little proactive maintenance now can prevent costly repairs later and keep your household safe and comfortable until temperatures ease. If this stretch of heat has you noticing issues with your roof, foundation, or HVAC system and you’re wondering how they might affect your home’s value or your plans to buy or sell in Denton County, we’re always happy to help you think it through.
Stay cool, DFW.
This post reflects current National Weather Service heat advisories for Denton County and the Dallas-Fort Worth area as of late July 2026. Conditions can change quickly — always check NWS.gov or your local news for the latest forecasts and advisories.
ENERGY MANAGEMENT TIPS FROM COSERV
- At home: Set to 78°F for a good mix of comfort and low energy use.
- Away from home: Raise the temperature by a few degrees or set it higher to save power.
- Peak hours (3:00 PM to 8:00 PM): Avoid heavy power use and bump your thermostat up slightly during CoServ Peak Events.
- Use ceiling fans: Turn them on to feel cooler, but turn them off when you leave the room.
- Close blinds: Block out direct sunlight during the hottest parts of the day.
- Opt-in programs: Look into CoServ Peak Time Perks if you use a smart thermostat, which can adjust your settings automatically during high-demand grid emergencies.
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