Winter's almost over, and you know what that means, BBQ season is just around the corner. But before you fire up that grill and invite the neighbors over, take a good look at your deck.
Chances are, it's seen better days.
Between snow, ice, rain, and months of neglect, your deck is probably covered in dirt, mold, and who knows what else. The good news? A little deck cleaning now means a lot more fun later.
Let's get your deck back in shape so it's ready to host all those backyard cookouts.
Why Deck Prep Actually Matters
You might be thinking, "It's just a deck. Can't I just sweep it off and call it good?"
Not quite.
Your deck takes a beating from the weather all year long. Moisture gets trapped between boards. Mold and algae start growing in shady spots. Dirt builds up in the cracks. And if you ignore all that? You're looking at bigger problems down the road, like wood rot, loose boards, and expensive repairs.
A clean deck lasts longer. It looks better. And it's way safer for bare feet and kids running around.
Plus, nobody wants to eat burgers on a grimy, slippery surface. That's just not the vibe.
Step One: Clear Everything Off
Before you do anything else, you need to get everything off your deck.
Move the furniture. Roll the grill to the side. Take down the planters. Clear it all out so you can see what you're working with.
This is also a great time to inspect your deck for damage. Walk around and look for loose boards, rusty nails, or soft spots that might mean rot. Check the railings to make sure they're sturdy. Peek underneath if you can, moisture problems often hide down there.
If you find any serious issues, fix them before you clean. No point in making everything look nice if the structure isn't solid.

Step Two: Sweep and Scrub the Basics
Start with the simple stuff, sweeping.
Grab a broom and sweep off all the leaves, dirt, and debris. Don't skip this part. You'd be surprised how much junk builds up over winter.
Pay special attention to the gaps between boards. Use a putty knife or old screwdriver to dig out the packed-in dirt and gunk that gets stuck in there. This stuff traps moisture, which leads to mold and rot.
Once you've swept everything, it's time to wash.
Grab your garden hose and give the whole deck a good rinse. This gets rid of loose dirt and shows you where the real problem spots are, like that green algae patch in the corner or the black mold streaks near the stairs.
The Deep Clean: Soap, Scrub, and Rinse
Now we're getting to the good part, the actual deck cleaning.
Mix up some mild soap or grab a biodegradable deck cleaner from the hardware store. You don't need anything fancy. Just something that'll cut through dirt and grime without damaging the wood or composite material.
Apply the cleaner to your deck and let it sit for about 10-15 minutes. This gives it time to break down all that built-up gunk.
Then grab a stiff bristle brush and start scrubbing. If you have a wood deck, always scrub along the grain, never against it. Going against the grain can damage the wood fibers and leave scratches.
For composite decks, you've got a little more freedom, but scrubbing in one direction still works best.
When Pressure Washing Makes Sense
Here's where pressure washing comes into play.
If your deck is really dirty, like, years of neglect dirty: a pressure washer can make quick work of it. But you've got to be careful. Too much pressure or the wrong technique can seriously damage your deck.
For wood decks, use a wide-angle nozzle and keep the pressure around 1200 psi. Hold the nozzle about 12-18 inches away from the surface. Move in smooth, even strokes along the grain.
Never point the pressure washer at one spot for too long. That'll gouge the wood and leave marks.
Composite decks can handle a bit more pressure, but you still need to be gentle. The last thing you want is to blow out the material or strip away the protective coating.
If you're not confident with a pressure washer, don't wing it. These machines are powerful, and mistakes can cost you hundreds in repairs.

Wood Decks vs. Composite Decks: What's Different?
The cleaning process is pretty similar for both types, but there are a few key differences.
Wood decks need more attention when it comes to moisture and rot. After cleaning, let the wood dry completely: we're talking 48 hours or more. Then apply a quality sealant to protect against water damage and UV rays. Think of sealing like sunscreen for your deck. It prevents fading, cracking, and warping.
You should reseal a wood deck every year or two, depending on how much sun and weather it gets.
Composite decks don't need sealing, which is nice. But they still need regular cleaning. Mold and algae love composite materials just as much as wood. And while composite won't rot, it can stain and fade over time if you don't take care of it.
Both types benefit from annual deep cleaning. It keeps them looking good and helps you catch small problems before they turn into big ones.
Don't Forget the Details
Once the main deck surface is clean, it's time to tackle the extras.
Scrub down the railings. They get just as dirty as the deck itself, and they're what people grab onto. Clean railings make your whole deck look better.
Check the stairs. These take the most foot traffic, so they tend to wear out faster. Make sure they're solid, clean, and not slippery.
If you've got built-in benches or planters, give those a good scrub too. And while you're at it, clear out any gutters or drainage areas near the deck. Water pooling underneath leads to mold, mildew, and eventually rot.

Seal It and Protect It
If you've got a wood deck, sealing is not optional.
After everything's clean and dry, apply a high-quality wood sealant. This creates a barrier against moisture, prevents sun damage, and keeps your deck looking fresh for longer.
Use a brush or roller to apply the sealant evenly. Work in small sections and follow the grain. Most sealants need a second coat, so plan for that.
Let it dry completely before putting furniture back. That usually takes 24-48 hours, depending on the weather.
And here's a pro tip: if your deck is brand new, wait 60-90 days before sealing. New wood needs time to weather and dry out before it can properly absorb sealant.
Get Your Furniture Ready Too
While your deck is drying, clean up your outdoor furniture.
Wash cushions and pillows. Wipe down tables and chairs. Check for rust or damage. If anything's looking rough, now's the time to replace it: not the day before your big cookout.
A clean deck with clean furniture just hits different. It makes your whole backyard feel like a vacation spot.
When to Call the Pros
Look, deck cleaning isn't rocket science. But it does take time, effort, and the right equipment.
If your deck is huge, really dirty, or you're just not comfortable using a pressure washer, calling in professionals makes sense. At Red Moose Exterior Cleaning, we handle deck cleaning all the time. We've got the right tools, the right cleaners, and the experience to do it safely.
We can knock out in a few hours what might take you all weekend. And we'll do it without damaging your deck in the process.
Plus, we can spot problems you might miss: like early signs of rot or structural issues that need attention.
Get Ready to Grill
Your deck is where memories happen.
It's where you flip burgers on summer nights. Where kids run around with popsicles. Where you sit with friends and watch the sunset.
But none of that's fun on a dirty, grimy deck.
A little deck cleaning now sets you up for months of good times. It protects your investment, keeps your family safe, and makes your backyard the place everyone wants to hang out.
So grab that broom, fire up the hose (or the pressure washer), and get to work. BBQ season is coming, and your deck needs to be ready.
Need help getting it done? Contact Red Moose Exterior Cleaning and we'll make your deck look brand new again. You bring the burgers( we'll bring the clean.)

