Jack Hammers

About Jack Hammers

Jack hammers, also known as demolition hammers or breakers, are powerful tools designed to break through concrete, masonry, tarmac, and other hard materials with impressive force. These essential pieces of equipment use a combination of impact energy and chisel action to demolish, break up, and remove tough surfaces that would be impossible to tackle with standard power tools. Whether you're removing old concrete foundations, breaking up a patio, or undertaking major renovation work, a quality jack hammer delivers the raw power needed to get the job done efficiently.

Our range includes both corded electric and cordless models from leading manufacturers including Makita, DeWalt, Bosch, Draper, Einhell, and Sealey. These professional-grade demolition breakers feature robust construction, advanced vibration control technology, and varying impact energy ratings to suit different applications. Electric models typically operate on 230V mains power and deliver consistent performance for extended periods, whilst cordless XGT and FlexVolt variants offer the freedom to work in remote locations without compromising on power. Most models use SDS-Hex or 28mm hex connection systems, ensuring compatibility with a wide range of chisels and breaking tools.

Whether you're a professional contractor tackling heavy-duty site work or a serious DIY enthusiast planning a major home improvement project, investing in the right demolition hammer will save hours of manual labour and deliver cleaner, more controlled results than hiring equipment repeatedly.

Jargon Buster

• Impact Energy (Joules): Measured in joules, this indicates the force delivered with each blow. Higher joule ratings (typically 30-70J) mean greater breaking power for tougher materials like reinforced concrete.
• SDS-Hex: A standardised hexagonal connection system that allows quick, tool-free changing of chisels and breaking attachments. The hex shank provides a secure, wobble-free connection.
• AVT (Anti-Vibration Technology): Advanced vibration dampening systems that reduce the transmission of vibration to the operator, minimising fatigue and reducing the risk of Hand-Arm Vibration Syndrome (HAVS).
• BPM (Blows Per Minute): The number of impacts the tool delivers per minute, typically ranging from 1,400 to 2,000 BPM. Higher BPM rates generally result in faster material removal.
• Brushless Motor: Modern motor technology that eliminates carbon brushes, delivering improved efficiency, longer runtime in cordless models, and extended tool life with minimal maintenance requirements.
• XGT/FlexVolt: Advanced battery platform technologies from Makita (XGT) and DeWalt (FlexVolt) that deliver higher voltages (40V-54V) for cordless demolition hammers, providing power comparable to corded models.

Who Uses Jack Hammers?

Jack hammers are essential tools for a wide range of professionals and serious DIY users:

• Demolition Contractors: Breaking down walls, floors, and structures during renovation and demolition projects
• Groundworkers and Civil Engineers: Removing old concrete, breaking up road surfaces, and preparing sites for new construction
• Builders and General Contractors: Creating openings in masonry walls, removing floor tiles, and breaking up concrete foundations
• Landscapers: Breaking up old patios, removing tree roots encased in concrete, and demolishing garden structures
• Plumbers and Heating Engineers: Creating channels for pipework in concrete floors and accessing underground services
• Electricians: Chasing channels in masonry for cable runs and creating access points for electrical installations
• Property Developers and Renovators: Undertaking major structural alterations and removing obsolete concrete features
• DIY Enthusiasts: Tackling home improvement projects involving concrete removal, patio demolition, or garden remodelling

How to Choose the Right Jack Hammers

Power Source: Corded electric models provide consistent power for extended use and are ideal for site work with mains access. Cordless options offer excellent portability for remote locations but require battery management and typically command a higher initial investment.

Impact Energy: Light-duty models (15-30J) suit occasional DIY use and lighter materials like tiles or thin concrete. Mid-range breakers (30-45J) handle most general construction work, whilst heavy-duty professional models (45J+) are essential for reinforced concrete and intensive daily use.

Weight and Handling: Lighter models (under 10kg) reduce operator fatigue but may lack the mass needed for efficient breaking. Heavier breakers (10-20kg) deliver better results on tough materials but require greater physical strength. Consider the balance between power and manoeuvrability for your specific applications.

Vibration Control: Look for models with AVT or similar anti-vibration technology, especially if you'll be using the tool regularly. HSE guidelines require employers to monitor vibration exposure, so advanced dampening systems are crucial for professional use to comply with workplace regulations.

Brand and Build Quality: Professional brands like Makita, DeWalt, and Bosch offer superior durability, better after-sales support, and wider accessory ranges. Budget options from Draper, Einhell, and Sealey can suit occasional users but may lack the longevity needed for daily site work.

Additional Features: Variable speed control allows adjustment for different materials, soft-start reduces initial kick-back, and adjustable auxiliary handles improve comfort during extended use. Some models include integral chisels or storage cases, adding value to the package.

Popular Accessories

• Point Chisels: Concentrated breaking force for starting demolition work and precision breaking in specific areas
• Flat Chisels: Wide blade for removing floor tiles, breaking up flat surfaces, and general-purpose demolition tasks
• Clay Spades: Specialised attachments for digging through compacted ground and removing stubborn materials
• Scaling Chisels: Designed for surface preparation, removing old render, and cleaning concrete surfaces
• Tool Grease: Essential for lubricating hex shanks to ensure smooth operation and prevent seizure
• Carrying Cases: Protective storage for transporting your breaker and accessories between job sites
• Replacement Carbon Brushes: For maintaining corded models (not required for brushless motors)
• Additional Batteries and Chargers: Essential for cordless operation to maintain productivity throughout the working day

Safety Information

Operating jack hammers involves significant safety considerations that must not be overlooked. Always wear appropriate PPE including safety goggles or a full face shield to protect against flying debris, heavy-duty work gloves, steel toe-capped boots, and hearing protection as noise levels can exceed 100dB during operation.

Vibration Exposure: Hand-Arm Vibration Syndrome (HAVS) is a serious concern when using demolition hammers. The HSE requires employers to assess vibration risks and take action if exposure approaches 2.5 m/s² over an 8-hour period. Choose models with excellent anti-vibration systems, take regular breaks, and monitor usage time to stay within safe limits.

Dust Control: Breaking concrete and masonry generates harmful silica dust. Work in well-ventilated areas, use dust extraction systems where possible, and wear appropriate respiratory protection rated FFP3 for fine particles. COSHH regulations require proper assessment and control of dust exposure on commercial sites.

Electrical Safety: Always check cables and plugs for damage before use. Corded models should be connected through an RCD (Residual Current Device) for protection against electric shock. Be aware of buried services including electric cables, gas pipes, and water mains before breaking ground surfaces.

Physical Strain: These tools are heavy and physically demanding to operate. Maintain a stable stance, use both hands, and take frequent breaks to prevent muscle strain and fatigue. Never operate demolition equipment whilst tired or under the influence of medication that affects coordination.

Frequently Asked Questions

What's the difference between a jack hammer and a rotary hammer drill?

Jack hammers (demolition hammers) deliver pure impact energy without rotation and are designed specifically for breaking and demolishing materials. Rotary hammer drills combine rotation with impact action for drilling holes in masonry. Jack hammers are much more powerful and designed for destruction rather than creating precise holes.

Can I use a jack hammer to break up my concrete driveway?

Yes, this is an ideal application for a mid to heavy-duty jack hammer. A model with 35-45J impact energy will make light work of a domestic driveway. Ensure you wear proper safety equipment and check for any buried services before starting. For large areas, consider hiring a larger petrol-powered breaker or engaging a professional contractor.

How long can I safely operate a jack hammer before taking a break?

This depends on the tool's vibration level and HSE exposure limits. Most modern jack hammers with good anti-vibration systems allow 1-2 hours of continuous use, but you should consult the manufacturer's vibration figures and HSE guidance. Professional users must monitor exposure times and maintain usage logs to comply with workplace regulations.

Are cordless jack hammers powerful enough for professional use?

Modern cordless demolition hammers using 40V-54V battery platforms from Makita XGT and DeWalt FlexVolt deliver impressive performance comparable to many corded models. They're excellent for site work without mains access and locations where trailing cables pose trip hazards. However, you'll need multiple batteries for all-day use, and the initial investment is higher than equivalent corded models.

Do I need any qualifications or training to use a jack hammer?

For DIY use on your own property, no specific qualifications are required, though familiarising yourself with the instruction manual and safety guidelines is essential. Professional users on construction sites should receive proper training in safe operation, vibration awareness, and risk assessment. Some employers may require CSCS cards or specific tool operation certificates for site access.