Caulking Guns

45 products

Caulking guns come down to how much sealant you’re pushing, how often you’re using it, and how much control you want at the nozzle. A light skeleton gun suits occasional work and smaller cartridges. A heavier frame or ratchet-style gun gives you more control on thicker materials and longer runs, but you’ll feel the extra weight. For repeat sealing, a smoother trigger and less flex in the frame usually saves time and material. A gun that twists is the one that starts wasting both.

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Minotaur Professional Dual Ratio Caulking Gun -  400ml

Minotaur Professional Dual Ratio Caulking Gun - 400ml

Dual ratio 400ml caulking gun with nozzle cutter and seal punch

Tajima Convoy SP12 Heavy Duty Sealant Gun

Tajima Convoy SP12 Heavy Duty Sealant Gun

Heavy-duty sealant gun for 310ml cartridges with 12:1 thrust ratio

Prodec Heavy Duty Revolving Mastic Gun

Prodec Heavy Duty Revolving Mastic Gun

Heavy-duty revolving mastic gun for sealants and mastics

Prodec Extra Strong Mastic Gun

Prodec Extra Strong Mastic Gun

Extra strong mastic gun for cartridges

Seagull Mastic Caulking Gun Professional - 279mm

Seagull Mastic Caulking Gun Professional - 279mm

279mm professional caulking gun for sealants and adhesives

OX Tools Pro Sealant Gun - 400ml

OX Tools Pro Sealant Gun - 400ml

Professional 400ml sealant gun with rotating barrel and quick release.

Axus Decor Pro-Gun - Blue series C4

Axus Decor Pro-Gun - Blue series C4

Professional caulking gun for sealants and adhesives, blue

Rothenberger Sealant Gun - 310ml and 400ml cartridge

Rothenberger Sealant Gun - 310ml and 400ml cartridge

Manual sealant gun compatible with 310 and 400ml cartridges

Hilka Professional Caulking Gun - 11" (280mm)

Hilka Professional Caulking Gun - 11" (280mm)

Hilka Professional Caulking Gun, 280mm (11")

Repair Care Dryflex Dosing Gun - Light duty

Repair Care Dryflex Dosing Gun - Light duty

Light-duty double-barrelled dosing gun for Dry Flex sealants

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For the Trade

What usually decides it is how much you’re putting through the gun and how tidy the bead needs to be. For one-off snagging, a basic frame is usually enough. If you’re running a lot of cartridges in a day, you want a gun that feeds smoothly and doesn’t start slipping under pressure. The wrong one shows up fast on site. You get hand fatigue, uneven flow, or a trigger that feels vague. Most tradesmen pick caulking guns on feel first, then on how well they suit the sealant or mastic they’re using.

Caulking Gun Types and Layouts

A skeleton gun suits lighter work. You can see the cartridge, it loads fast, and there’s less weight in the hand.

A full-barrel caulking gun gives the cartridge more support. That helps when you need a firmer push on the trigger and less flex, but it does add bulk.

Ratchet and smooth-rod caulk guns split the rest of the choice. Ratchet guns are fine for the odd job. A smooth-rod gun usually gives cleaner control and less mess.

If you’re matching the gun to the rest of the kit, start with Sealants, Silicones & Tools and pick the frame that suits the work in front of you.

What to Check Before You Buy

Material usually changes the call. A metal-frame caulking gun feels firmer in the hand and copes better when you’re pushing thicker silicone or working all day, but it does add weight.

Plastic or lighter composite versions are easier to carry and less tiring on short runs. They can feel less planted when the cartridge gets stiff. For neat finishing work, smooth trigger action matters more than brute force. With heavier sealants, you notice the difference straight away. For Decorators Caulk, fine control matters more than sheer push. Hybrid Sealants & Adhesives can justify a tougher frame because the material asks more of the gun.

Useful Alongside Caulking Guns

Once you’ve picked the caulking guns, the next call is what’s going in the gun. For trims and internal joints, decorators caulk is often the follow-on. If you need a stronger bond or more movement tolerance, hybrid sealants and adhesives make more sense.

The gun is only half the job. The wrong cartridge will have you fighting the bead all day. On snagging work, keep silicone remover and siliconing tools in mind too. A clean-out and a decent finish tool save more time than swapping guns.

Local availability for Caulking Guns

TToolstation
Toolstation
CCity Plumbing
City Plumbing
SSelco
Selco
PPlumb Centre
Plumb Centre
LLeyland
Leyland
YYesss Electrical (Central)
Yesss Electrical (Central)
YYesss Electrical (South)
Yesss Electrical (South)
SSIG Roofing
SIG Roofing
YYesss Electrical (North)
Yesss Electrical (North)
KKellaway Building Supplies
Kellaway Building Supplies
LLords Builders Merchants
Lords Builders Merchants
AAlsford
Alsford
JJT Dove
JT Dove
MMP Moran
MP Moran
FFrank Key Building Supplies
Frank Key Building Supplies
AABM Electrical Distributors
ABM Electrical Distributors
PPaint Stop
Paint Stop
Local availability for Caulking Guns