How to Weatherstrip a Door Guide for Eastern Washington Homeowners & Contractors

Determining If Your Door Needs New Weatherstripping

Living in Eastern Washington, we deal with extreme temperature swings that put serious stress on door seals. From sub-zero winter nights in Colville to blazing summer days across the region, your weatherstripping works overtime to keep your home comfortable and energy-efficient.

The most reliable way to check if your door needs new weatherstripping is the “paper test.” Close your door on a piece of paper, then try to pull it out. If the paper slides out easily, your seal isn’t tight enough. You can also perform a visual inspection on a sunny day – if you see light coming through around the edges when the door is closed, you’ve got gaps that need addressing.

Another effective method is the candle test. Hold a lit candle near the door frame on a windy day. If the flame flickers or blows toward the door, you’re losing conditioned air. This is especially important to check before winter hits the Spokane area, as even small drafts can significantly impact your heating bills.

During Eastern Washington’s harsh winters, you might notice frost forming on the interior side of your door frame or feel cold spots near the door. These are clear indicators that your weatherstripping has failed. Don’t wait until you’re getting hit with those February heating bills – address weatherstripping issues as soon as you notice them.

Signs It’s Time for Replacement

Weatherstripping typically needs replacement every 2-3 years in our climate, but several factors can accelerate wear. Look for visible cracks, tears, or compression marks that don’t spring back. If the material looks brittle or has pulled away from the door frame, it’s definitely time for new weatherstripping.

Pay special attention to the bottom sweep and threshold area, as these take the most abuse from foot traffic and weather exposure. In areas like Kettle Falls where snow accumulation is common, ice buildup can damage door sweeps more quickly than in milder climates.

Choosing the Right Weatherstripping for Eastern Washington Conditions

Our semi-arid climate presents unique challenges for weatherstripping materials. We experience temperature extremes from -20°F in winter to over 90°F in summer, plus strong winds and significant UV exposure. These conditions demand materials that can handle expansion and contraction without cracking or losing their seal.

Best Materials for Our Climate

EPDM Rubber: This is our top recommendation for Eastern Washington. EPDM (ethylene propylene diene monomer) rubber maintains flexibility in extreme temperatures and resists UV degradation. It’s particularly effective for door jambs and can handle our freeze-thaw cycles without cracking. Expect to pay $15-25 for enough material to seal a standard entry door.

Vinyl with Metal Backing: Reinforced vinyl weatherstripping offers excellent durability and maintains its shape over time. The metal backing prevents stretching and provides consistent compression. This works well for both sides and tops of door frames. Cost typically runs $20-35 for a complete door kit.

Bronze or Stainless Steel Tension Strips: For the ultimate in longevity, metal tension strips (V-shaped) create an excellent seal and can last 10+ years. They’re particularly good for historic homes common in downtown Spokane or older farmhouses in rural areas. While more expensive initially ($40-60 per door), they’re cost-effective long-term.

Materials to Avoid in Our Climate

Standard foam weatherstripping, while inexpensive, doesn’t hold up well to our temperature extremes and UV exposure. It tends to crack within a year and loses compression quickly. Plain felt weatherstripping also struggles with our low humidity and temperature swings, plus it absorbs moisture during snow melts.

Open-cell foam can trap moisture, leading to mold issues during our wet spring months. Stick with closed-cell materials or avoid foam altogether for exterior applications.

Specialized Solutions for Bottom Seals

Door sweeps and threshold seals deserve special attention in Eastern Washington. Standard vinyl sweeps work adequately, but for exposed doors or those facing prevailing winds, consider upgrading to a door shoe system with replaceable inserts.

Frost-brake thresholds are particularly valuable in our climate. These feature a thermal break that prevents cold transfer from the exterior aluminum to the interior wood, reducing condensation and ice buildup. While they cost more upfront ($60-120), they’re excellent investments for north-facing or wind-exposed entries.

Step-by-Step Installation Guide

Proper installation is crucial for weatherstripping performance, especially given our challenging climate conditions. Plan to do this work on a mild day when temperatures are between 40-80°F, as both the adhesives and the materials work better within this range.

Tools and Preparation

Gather these essential tools: utility knife with fresh blades, measuring tape, drill with bits, hacksaw for metal components, and cleaning supplies. For adhesive-backed products, you’ll also want a hair dryer or heat gun to warm the adhesive in cold weather.

Start by thoroughly cleaning all surfaces where weatherstripping will be applied. Remove old material completely – don’t install over existing weatherstripping as this creates an uneven seal. Use a putty knife to scrape away old adhesive and wipe surfaces with denatured alcohol to ensure good adhesion.

Installing Side and Top Weatherstripping

Measure the door frame carefully, adding 2-3 inches to each measurement to allow for trimming and adjustment. For adhesive-backed weatherstripping, start at the top of the frame and work your way down, keeping steady pressure as you apply.

When using tension strips (V-shaped weatherstripping), install them with the open side of the “V” facing the direction the door closes from. This ensures proper compression and sealing. For nailed-on strips like bronze weatherstripping, pre-drill pilot holes every 6-8 inches to prevent splitting, especially in older, dry lumber common in our area.

Pay special attention to corners, which are often the weakest points in any weatherstripping system. Miter cuts at 45-degree angles for the best appearance and seal, or use specialized corner pieces designed for your weatherstripping type.

Bottom Seal Installation

Door sweeps require more precision than side weatherstripping. Measure the door width and cut the sweep 1/8 inch shorter than the door to prevent binding on the frame. Position the sweep so it just touches the threshold when the door is closed – too tight and the door won’t close properly; too loose and you’ll have gaps.

For doors with uneven thresholds (common in older homes), adjustable door sweeps work better than fixed types. These allow you to customize the fit and compensate for threshold irregularities or settling that’s common in our region due to soil conditions.

When installing door shoes (sweeps that fit into a groove cut in the door bottom), you may need to plane the door bottom slightly. This is more complex work that many homeowners prefer to leave to professionals, especially on expensive doors.

Testing Your Installation

After installation, test the door operation several times. The door should close smoothly without excessive resistance. Perform the paper test again to verify the seal quality, and use the candle test on a breezy day to check for remaining air leaks.

Look for any gaps at corners or where different pieces of weatherstripping meet. These junction points often need additional attention, sometimes requiring small pieces of foam or rubber to complete the seal.

Maintenance and Seasonal Care Tips

Eastern Washington’s climate demands proactive weatherstripping maintenance to get maximum life from your investment. The extreme temperature swings and UV exposure common in the Spokane area can accelerate wear if you don’t stay ahead of problems.

Seasonal Inspection Schedule

Inspect your weatherstripping twice yearly – once in late fall before winter sets in, and again in early spring after the snow melts. Look for compression damage from ice buildup, UV cracking from summer sun exposure, and general wear from daily use.

During your fall inspection, clean out any debris that has accumulated in door sweeps and threshold channels. Seeds, leaves, and dirt can prevent proper sealing and trap moisture that can damage the weatherstripping during freeze-thaw cycles.

Spring inspections should focus on winter damage. Ice dams and snow buildup can push weatherstripping out of position or cause tearing. Address any damage immediately rather than waiting for the next replacement cycle.

Cleaning and Care

Clean weatherstripping monthly with mild soap and water, avoiding harsh chemicals that can degrade rubber and vinyl materials. For stubborn dirt or mildew (which can occur during our wet springs), use a solution of 10% bleach in water, rinse thoroughly, and allow to dry completely.

Lubricate hinges and door hardware regularly, as stiff doors can put extra stress on weatherstripping when forcing them closed. A few drops of lightweight oil on hinges twice yearly helps doors operate smoothly.

Extending Weatherstripping Life

Consider applying UV protectant to exposed weatherstripping, especially on south and west-facing doors that get intense afternoon sun. Marine-grade UV protectants work well and can double the life of rubber and vinyl materials.

During severe winter weather, avoid slamming doors, as this can damage weatherstripping when it’s stiff from cold temperatures. If ice builds up around door sweeps, carefully remove it rather than forcing the door, which can tear the weatherstripping.

When to Call a Professional

While most door weatherstripping is well within DIY capabilities, certain situations warrant professional help. Garage doors, with their complex track systems and heavy materials, should always be handled by professionals for safety reasons.

If your door frame is significantly warped or damaged, a contractor can assess whether the frame needs repair before weatherstripping installation. This is particularly common in older homes or buildings that have experienced foundation settling.

For commercial applications or high-traffic entries, professionals have access to heavy-duty weatherstripping systems that aren’t typically available to homeowners. These systems often provide better longevity and performance in demanding applications.

Cost Considerations

DIY weatherstripping costs typically run $15-50 per door for materials, depending on the type and quality chosen. Professional installation adds $75-150 in labor but includes proper sizing, installation, and often a warranty on the work.

For whole-house weatherstripping projects (multiple doors and windows), professional installation becomes more cost-effective due to bulk material pricing and efficient installation techniques.

Eastern Washington-Specific Recommendations

Given our unique climate challenges, we recommend upgrading to premium weatherstripping materials even if your budget suggests otherwise. The energy savings from proper sealing typically pay for the upgrade within one heating season.

For homes in rural areas around Colville and Kettle Falls where wind exposure is significant, consider double-sealing critical doors with both perimeter weatherstripping and storm doors. This creates a buffer zone that dramatically improves energy efficiency and comfort.

Properties at higher elevations or in exposed locations should inspect weatherstripping quarterly rather than semi-annually, as wind and weather exposure accelerate wear patterns.

Finally, keep spare weatherstripping materials on hand for quick repairs. A small section of torn door sweep can be temporarily patched to get through a cold snap, but having materials ready means you can make proper repairs when weather permits.

At Builders Supply & Home Center, we stock a complete selection of weatherstripping materials chosen specifically for Eastern Washington conditions at our Airway Heights, Colville, and Kettle Falls locations. Our knowledgeable staff can help you select the right materials for your specific situation and climate challenges. Visit us in-store for hands-on advice, or browse our full selection online at https://bldrsupply.epicor-inet.com/departments to get your weatherstripping project started right.