General Repairs & Maintenance

ProfessionalCaulking & Sealing

Old, cracked caulk lets in drafts, water and pests. Fresh caulk around windows, doors, baseboards and penetrations is some of the cheapest energy-saving work you can do. We strip out the old material, prep the surface and lay a clean, consistent bead that seals tight and looks professional.

Also known as: caulking service, sealing gaps, caulk application, caulk replacement, window caulking, door caulking, draft sealing, caulk and seal

4.9/5 Fully Insured & Bonded
Licensed & Insured Background-Checked Pros 4.9 / 5 Satisfaction Guaranteed

Upfront pricing

Clear, honest quotes before any work begins.

Licensed & insured

Vetted local pros who treat your home with care.

Done right

We stand behind every job until you are satisfied.

What you get

What’s included

  • Remove old or mold-stained caulk fully before reapplying
  • Caulk exterior window and door frames to block drafts
  • Seal gaps at baseboards, crown molding and interior trim
  • Caulk around plumbing and electrical penetrations
  • Apply paintable or clear caulk to match finish requirements
  • Tool the bead smooth for a clean, professional appearance

Simple & stress-free

How it works

1

Strip and prep

We scrape out all old caulk and clean the joint so the new caulk bonds to a solid, dry surface.

2

Apply and tool

We run a controlled bead and immediately smooth it with a tool or wet finger for a tight, even seal.

3

Inspect the line

We check every joint for voids or bridging and touch up anything that isn't fully sealed.

We can help

Problems we fix

  • Caulk applied over existing old caulk, which causes the new layer to fail quickly
  • Gaps at the base of exterior windows that let water infiltrate the wall cavity
  • Paintable caulk applied in humid climates before it's fully cured, causing it to crack
  • Air leaks around pipe penetrations in exterior walls that inflate heating and cooling costs

Good to know

Caulking & Sealing — FAQ

What's the difference between caulk and weatherstripping?

Caulk fills stationary gaps — around trim, pipes and fixed frames. Weatherstripping goes on moving parts like doors and operable windows that compress when closed.

Can I paint over caulk right away?

Latex caulk is typically paintable in 30–60 minutes once skinned over, but a full cure takes 24 hours. We use paintable formulas wherever you'll be painting.

How long does exterior caulk last?

Quality exterior caulk lasts 10–20 years in normal conditions, but joints that move with the building — like door frames — may need attention every 5–7 years.

Service area

Caulking & Sealing near you

We provide caulking & sealing across the Charleston area:

Need caulking & sealing?

Book a licensed, insured AZ Smart Fix pro online in minutes — or call and we’ll handle the rest.

Licensed & insured · Upfront pricing · Satisfaction guaranteed