Fill Skirting Board Gap (7 Ways To Seal It!)
One thing that often gets overlooked is that little gap between your skirting boards (or baseboards, depending on where you’re from!) and the floor.
It might seem like a minor detail, but trust me, addressing those gaps can make a HUGE difference.
Not just in how your room looks, but also in how energy-efficient and comfortable your home is.
Think about it: sealing those gaps prevents drafts, keeps dust bunnies at bay, and even stops little critters from sneaking in!
In this article, I’m going to share seven tried-and-true methods I’ve used over the years to tackle those pesky skirting board gaps.
Ready to get started and make your home look and feel its best? Let’s dive in!
Section 1: Understanding Skirting Board Gaps
So, what exactly are skirting board gaps? Well, they’re those spaces that appear between the bottom edge of your skirting board and the surface of your floor.
Why do they happen? There are a few reasons.
Sometimes, it’s simply down to uneven floors. Older houses especially tend to settle over time, leading to slight variations in floor height.
Another factor is the natural expansion and contraction of building materials. Wood, in particular, is susceptible to changes in humidity and temperature.
As your flooring and skirting boards expand and contract, gaps can appear or widen.
The type of material used for your skirting boards also plays a role.
Common materials include:
-
Wood: Pine, oak, and MDF (Medium-Density
Fiberboard) are popular choices. Wood
is classic, but it’s also prone to
movement with moisture changes. -
MDF: A more stable and cost-effective
alternative to solid wood. It’s less
likely to warp or crack, but it’s not
waterproof. -
PVC: A plastic-based option that’s
completely waterproof and resistant to
rot. It’s a good choice for bathrooms
or kitchens, but it might not have the
same aesthetic appeal as wood.
No matter the material, addressing these gaps is important for both aesthetics and function.
Aesthetically, gaps just look unfinished and can detract from the overall appearance of your room. Functionally, they can lead to:
-
Drafts: Cold air seeping in, making
your home less comfortable and increasing
your energy bills. According to the U.S.
Department of Energy, drafts can increase
energy consumption by as much as 30-40%
[Source: Energy.gov]. -
Dust and Debris: Gaps act like little
dust traps, collecting dirt, pet hair,
and other allergens. -
Pests: Small insects and rodents can
use gaps as entry points into your home.
So, taking the time to seal those gaps is a small investment that can pay off big time in the long run!
Section 2: Method 1 – Caulk
Alright, let’s get to the solutions! First up, we have caulk.
Caulk is a fantastic, versatile sealant that’s relatively easy to use, making it a great option for tackling skirting board gaps.
Think of it as a flexible filler that creates a waterproof and airtight seal.
Here’s a step-by-step guide on how to apply caulk like a pro:
-
Preparation is Key: Start by cleaning
the area thoroughly. Remove any loose
debris, old caulk, or dirt from the gap
between the skirting board and the floor.I usually use a putty knife or a
specialized caulk removal tool for this.
A clean surface ensures the caulk will
adhere properly. -
Gather Your Supplies: You’ll need a
caulk gun, a tube of caulk, a utility
knife, and a damp sponge or cloth.I also like to have a roll of painter’s
tape on hand to create clean lines. -
Load the Caulk Gun: Cut the tip of the
caulk tube at a 45-degree angle, using
the utility knife. The size of the opening
will determine the bead of caulk, so start
small – you can always make it bigger.Puncture the seal inside the tube using
the wire rod on the caulk gun. Load the
tube into the gun, making sure it’s secure. -
Apply the Caulk: If you’re using
painter’s tape, apply it along the top
edge of the floor and the bottom edge
of the skirting board, leaving the gap
exposed. This will give you a nice, clean line.Hold the caulk gun at a 45-degree angle
and apply a smooth, consistent bead of
caulk along the gap.Try to maintain even pressure on the trigger
to avoid any gaps or globs. Work in small
sections, about 2-3 feet at a time. -
Smooth the Caulk: Immediately after
applying the caulk, use your finger or a
caulking tool to smooth the bead.This will press the caulk into the gap
and create a professional-looking finish.Dip your finger or the tool in water to
prevent the caulk from sticking. -
Remove Excess Caulk: Use a damp sponge
or cloth to wipe away any excess caulk
from the surrounding surfaces.If you used painter’s tape, carefully
remove it while the caulk is still wet.
This will prevent the caulk from peeling
or cracking. -
Allow to Dry: Let the caulk dry
completely according to the manufacturer’s
instructions. This usually takes about
24 hours.
Now, let’s talk about the different types of caulk available. The most common types are:
-
Acrylic Caulk: This is a general-purpose
caulk that’s easy to work with and
paintable. It’s a good choice for most
skirting board gaps, especially if you
plan to paint the skirting boards afterwards.However, it’s not as flexible or waterproof
as silicone caulk. -
Silicone Caulk: This is a more durable
and waterproof option that’s ideal for
areas exposed to moisture, such as bathrooms
or kitchens. It’s also more flexible than
acrylic caulk, so it can better accommodate
movement in the building.However, it’s not paintable, so you’ll
need to choose a color that matches your
skirting boards. -
Acrylic Latex Caulk with Silicone: This
is a hybrid option that combines the
benefits of both acrylic and silicone caulk.It’s paintable, durable, and relatively
waterproof.
When choosing a caulk, consider the size of the gap, the location of the skirting boards, and whether you plan to paint them.
For most interior skirting board gaps, acrylic caulk is a great choice. For bathrooms or kitchens, silicone caulk is the way to go.
Section 3: Method 2 – Expanding Foam
Okay, so caulk is great for smaller gaps, but what about those really big ones?
That’s where expanding foam comes in handy. Expanding foam is a polyurethane-based product that expands to fill gaps and cracks.
It’s incredibly effective at sealing large voids and providing insulation.
However, it’s also a bit messier and more difficult to control than caulk, so it’s important to use it carefully.
Here’s a detailed guide on how to use expanding foam:
-
Safety First: Expanding foam can be
irritating to the skin and eyes, so it’s
important to wear gloves, safety glasses,
and a mask when working with it.Also, make sure the area is well-ventilated.
-
Gather Your Supplies: You’ll need a can
of expanding foam, a foam applicator gun
(optional, but recommended for better
control), a utility knife, and some
disposable rags.I also recommend having some acetone on
hand to clean up any spills or drips. -
Prepare the Area: Clean the gap between
the skirting board and the floor, removing
any loose debris or dirt.If you’re worried about the foam sticking
to the surrounding surfaces, you can apply
painter’s tape or cover them with plastic sheeting. -
Apply the Foam: Shake the can of
expanding foam vigorously for at least
one minute. Attach the nozzle or applicator
gun to the can.Hold the can upside down and apply the
foam into the gap, starting at the back
and working your way forward.Remember, expanding foam expands! So,
don’t overfill the gap – apply just enough
to fill about half of the space.The foam will continue to expand for
several minutes. -
Allow to Cure: Let the foam cure
completely according to the manufacturer’s
instructions. This usually takes about
24 hours.During this time, avoid touching or
disturbing the foam. -
Trim the Excess: Once the foam is
fully cured, use a utility knife to trim
away any excess foam that’s protruding
from the gap.Be careful not to cut into the skirting
board or the floor. -
Clean Up: Dispose of the used can of
expanding foam according to local
regulations.Clean any spills or drips immediately
with acetone. Once the foam has cured,
it’s very difficult to remove.
Now, let’s talk about the potential downsides of using expanding foam:
-
Messy: Expanding foam can be very messy
if you’re not careful. It sticks to
everything, and it’s difficult to remove once it’s cured. -
Over-Expansion: If you apply too much
foam, it can expand excessively and
deform the skirting board or the floor. -
Appearance: Expanding foam has a
distinctive texture and color that’s not
very attractive. It’s usually necessary
to cover it with caulk or trim to hide it.
To mitigate these downsides:
-
Use an Applicator Gun: An applicator
gun gives you much better control over
the amount of foam you’re applying. -
Apply in Layers: Apply the foam in
thin layers, allowing each layer to cure
before applying the next. This will
prevent over-expansion. -
Cover with Caulk or Trim: Once the
foam is cured and trimmed, cover it with
caulk or trim to hide it and create a
more finished look.
Expanding foam is a powerful tool for sealing large gaps, but it’s important to use it carefully and be aware of its potential downsides.
Section 4: Method 3 – Wood Filler
Alright, let’s say you have wooden skirting boards and just a few small gaps. Wood filler might be your best bet!
Wood filler is a paste-like substance that’s designed to fill small imperfections in wood, such as nail holes, cracks, and, yes, small gaps between skirting boards and floors.
It’s available in a variety of colors and formulations to match different types of wood.
Here’s a tutorial on how to apply wood filler:
-
Choose the Right Filler: Select a wood
filler that matches the color of your
skirting boards as closely as possible.You can find wood fillers at most hardware
stores. I like to test a small amount
on an inconspicuous area of the skirting
board to make sure the color is a good match. -
Prepare the Area: Clean the gap and the
surrounding area, removing any loose debris
or dirt.You may also want to lightly sand the
edges of the gap to create a smooth surface
for the filler to adhere to. -
Apply the Filler: Use a putty knife or
a small trowel to apply the wood filler
into the gap.Press the filler firmly into the gap to
ensure it fills the space completely.Overfill the gap slightly, as the filler
will shrink as it dries. -
Allow to Dry: Let the wood filler dry
completely according to the manufacturer’s
instructions. This usually takes about
24 hours.The drying time will vary depending on
the type of filler and the size of the gap. -
Sand the Filler: Once the filler is
completely dry, use fine-grit sandpaper
(220-grit or higher) to sand it smooth.Sand in the direction of the wood grain,
being careful not to scratch the surrounding
surfaces.Remove any dust with a tack cloth.
-
Finish: If desired, you can apply a
finish to the filled area to match the
rest of the skirting board.This could include paint, stain, varnish,
or lacquer.Follow the manufacturer’s instructions
for the finish you’re using.
Choosing the right color is crucial for a seamless repair.
If you can’t find a wood filler that’s an exact match, you can try mixing different colors together to create a custom blend.
I often do this to get the perfect match for older, stained wood.
Also, remember that wood filler is best suited for small gaps. If the gap is larger than about 1/4 inch, it’s better to use expanding foam or caulk instead.
Section 5: Method 4 – Trim and Molding
Sometimes, the best way to hide a gap is to simply cover it up! That’s where trim and molding come in.
Adding additional trim to the bottom of your skirting boards can be a great way to conceal gaps and add a decorative touch to your room.
There are many different types of trim that can be used, including:
-
Shoe Molding: This is a small, rounded
trim that’s typically used to cover the
gap between the skirting board and the floor.
It’s a simple and inexpensive option that
can be easily installed with nails or adhesive. -
Quarter Round: Similar to shoe molding,
but with a quarter-circle profile. It’s
slightly larger than shoe molding and can
add a bit more visual interest. -
Base Shoe: A slightly larger and more
ornate version of shoe molding. It can
add a more formal or traditional look to
your room. -
Cove Molding: A concave molding that
creates a smooth transition between the
skirting board and the floor. It’s often
used in older homes with traditional architecture.
Here’s how to install trim effectively:
-
Measure: Measure the length of the
skirting board where you want to install
the trim.Use a measuring tape and mark the length
on the trim with a pencil. -
Cut: Use a miter saw or a hand saw to
cut the trim to the correct length.If you’re installing the trim in a corner,
you’ll need to cut it at a 45-degree angle
to create a mitered joint. -
Attach: Apply a bead of construction
adhesive to the back of the trim.Position the trim against the skirting
board and press it firmly into place.Use a nail gun or hammer and nails to
secure the trim to the skirting board.Space the nails about 12 inches apart.
-
Fill Nail Holes: Use wood filler to
fill any nail holes in the trim.Let the filler dry completely and then
sand it smooth. -
Paint or Stain: Paint or stain the
trim to match the skirting board.Apply a primer first to ensure the paint
or stain adheres properly.
When choosing trim, consider the style of your room and the existing skirting boards.
You want the trim to complement the skirting boards and enhance the overall decor.
Also, be sure to choose a trim that’s the right size for the gap you’re trying to cover.
If the gap is very large, you may need to use a combination of trim and caulk or expanding foam.
Section 6: Method 5 – Skirting Board Shims
Okay, sometimes the problem isn’t the skirting board itself, but the floor!
Uneven floors can create gaps that are difficult to fill with caulk or wood filler.
In these cases, skirting board shims can be a lifesaver.
Skirting board shims are thin, tapered pieces of wood or plastic that are placed behind the skirting board to level it out and eliminate the gap.
They’re particularly useful for older homes with settling foundations or uneven subfloors.
Here’s how to install skirting board shims:
-
Identify Problem Areas: Use a level to
identify areas where the skirting board
is not flush with the floor.Mark these areas with a pencil.
-
Insert Shims: Gently pry the skirting
board away from the wall slightly.Insert shims behind the skirting board at
the marked locations.Adjust the shims until the skirting board
is level and flush with the floor. -
Secure Shims: Once the skirting board
is level, secure the shims in place with
construction adhesive or small nails.Be careful not to drive the nails too deep,
as this could split the shims or damage
the skirting board. -
Trim Excess: Use a utility knife or a
saw to trim any excess shim material that’s
protruding from behind the skirting board. -
Caulk or Fill: If there are still any
small gaps, fill them with caulk or wood filler.
Shims provide stability and alignment to the skirting board, ensuring it sits properly against the wall and floor.
They also prevent the skirting board from rocking or wobbling, which can be a problem on uneven floors.
When choosing shims, consider the material and the thickness.
Wood shims are a good choice for most applications, but plastic shims are more resistant to moisture and rot.
The thickness of the shims will depend on the size of the gap you’re trying to fill.
You can stack multiple shims together to achieve the desired thickness.
Section 7: Method 6 – Paint or Stain
Sometimes, the gap is so small that you don’t need to fill it at all!
You can visually mask it with a little paint or stain.
This is a quick and easy solution for minor imperfections, but it’s important to do it right.
Here are some tips on color matching and application techniques:
-
Choose the Right Color: Select a paint
or stain that matches the color of your
skirting boards as closely as possible.Take a sample of your skirting board to
the paint store and have them match the color. -
Prepare the Area: Clean the area around
the gap, removing any loose debris or dirt.You may also want to lightly sand the
skirting board to create a smooth surface
for the paint or stain to adhere to. -
Apply the Paint or Stain: Use a small
brush to carefully apply the paint or
stain to the gap.Blend the paint or stain into the surrounding
area to create a seamless look.Apply multiple thin coats, allowing each
coat to dry completely before applying the next. -
Use Quality Products: Use high-quality
paints and stains that are designed for
interior use.These products will provide better coverage,
durability, and color retention.
When applying paint or stain, it’s important to use a light touch.
You don’t want to apply too much paint or stain, as this can make the gap more noticeable.
Instead, focus on blending the color into the surrounding area to create a subtle, seamless transition.
Also, be sure to use a brush that’s the right size for the gap you’re trying to fill.
A small brush will give you more control and prevent you from getting paint or stain on the surrounding surfaces.
Section 8: Method 7 – Professional Help
Alright, let’s be honest. Sometimes, DIY isn’t the answer.
If you’re dealing with large or complex gaps, or if you’re just not comfortable tackling the project yourself, it might be time to call in a professional.
Hiring a professional flooring contractor can save you time, money, and frustration in the long run.
Here are some advantages of hiring a pro:
-
Experience: Professional contractors
have years of experience dealing with
skirting board gaps and other flooring issues.They know the best techniques and materials
to use for different situations. -
Specialized Tools: Professional
contractors have access to specialized
tools that can make the job easier and faster.This includes things like miter saws, nail
guns, and laser levels. -
Quality Workmanship: Professional
contractors take pride in their work and
strive to provide high-quality results.They’ll make sure the job is done right
the first time, so you don’t have to worry
about fixing it later. -
Peace of Mind: Hiring a professional
contractor gives you peace of mind knowing
that the job is in good hands.You can relax and let them take care of
everything, from start to finish.
Here are some tips on how to choose the right contractor:
-
Get Referrals: Ask friends, family,
and neighbors for referrals.Personal recommendations are often the
best way to find a reliable contractor. -
Check Online Reviews: Read online
reviews on sites like Yelp, Google, and
Angie’s List.Pay attention to both the positive and
negative reviews. -
Get Multiple Bids: Get bids from at
least three different contractors.Compare the bids carefully, paying attention
to the scope of work, the materials used,
and the price. -
Check Licenses and Insurance: Make sure
the contractor is licensed and insured.This will protect you in case of accidents
or damage. -
Ask Questions: Don’t be afraid to ask
the contractor questions.Find out about their experience, their
qualifications, and their approach to the project.
Conclusion: The Long-Term Benefits of Sealing Skirting Board Gaps
So, there you have it! Seven different ways to fill those pesky skirting board gaps.
Whether you choose to caulk, use expanding foam, add trim, or call in a professional, taking the time to address these gaps is a worthwhile investment.
Remember, filling skirting board gaps isn’t just about aesthetics. It’s also about:
-
Improving Energy Efficiency: Sealing
gaps prevents drafts and reduces energy loss,
saving you money on your heating and cooling bills. -
Preventing Dust and Pests: Filling gaps
keeps dust, dirt, and pests out of your home,
creating a healthier and more comfortable living environment. -
Protecting Your Flooring: Sealing gaps
prevents moisture from seeping under your
skirting boards and damaging your flooring.
So, what are you waiting for? Grab your caulk gun, your wood filler, or your phone, and start tackling those skirting board gaps today!
Your home will thank you for it.
