Scarifiers & Aerators
Keep your lawn in peak condition with our range of lawn scarifiers and lawn aerators, designed to improve lawn health by removing thatch, reducing moss, and relieving soil compaction. Whether you’re looking for an electric scarifier for regular garden maintenance or a petrol scarifier for larger areas, you’ll find quality scarifiers for lawns and professional lawn aerator solutions from trusted brands including STIHL, Cobra, Toro, and Billy Goat.
With expert advice and UK-wide delivery, we’re here to help you choose the right machine for your lawn. Browse the range below or speak to our team for expert advice.
Cobra S40C 16″ Petrol Scarifier
STIHL RLA 240 13″ Cordless Lawn Scarifier (Tool Only)
Cobra SA40E 16″ Electric Scarifier
Billy Goat AE1300HEU 30″ Hydro Aerator
Billy Goat PL2501SPH 25″ Self-Propelled Hydrostatic Aerator
Toro 40cm Petrol Scarifier (54610)
STIHL RL 540 15″ Petrol Scarifier
Why Scarify and Aerate Your Lawn?

Regular scarifying and aerating are two of the most effective ways to improve the health and appearance of your lawn.
- A lawn scarifier removes moss, dead grass and built-up thatch, allowing air, water and nutrients to reach the soil more easily.
- A lawn aerator tackles compacted ground by creating openings that encourage stronger root growth and improve drainage.
Used together, they help create a thicker, greener lawn that's better equipped to cope with heavy use, dry weather and seasonal changes. Whether you're maintaining a family garden or larger grounds, these lawn care tasks form the foundation of healthy grass.
Our Scarifier & Aerator Range
Electric ScarifiersAn electric scarifier is a great choice for smaller to medium-sized lawns where quieter operation and straightforward maintenance are priorities. Available in both corded and cordless designs, these machines make routine lawn care simple without the need for petrol or extensive servicing. Models such as the Cobra SA40E and STIHL RLA 240 are ideal for removing moss and surface thatch as part of regular seasonal maintenance, helping to keep your lawn healthy with minimal effort. |
Petrol ScarifiersIf you're maintaining a larger lawn or tackling heavier moss and thatch build-up, a petrol scarifier offers greater power and complete freedom of movement. These machines are designed for more demanding work, with the performance needed to scarify deeper and cover larger areas efficiently. Popular models including the STIHL RL 540, Cobra S40C, and Toro 54610 are well suited to larger domestic gardens, estates and anyone looking for more intensive lawn renovation. |
Lawn AeratorsA lawn aerator is designed to relieve soil compaction, allowing air, water, and nutrients to reach the root zone more effectively. Aerating encourages stronger root development, improves drainage and helps grass recover from heavy foot traffic or dense soils. Our range includes dedicated aerators from Billy Goat, including the AE1300HEU and PL2501SPH, alongside practical SCH tow-behind systems that can be paired with suitable garden tractors and ride-on mowers for efficient maintenance of larger areas. |
Hollow Tine Aerators & Professional EquipmentFor more intensive turf care, a hollow tine aerator removes small plugs of soil to reduce compaction and improve long-term lawn health. These machines are widely used on sports pitches, ornamental lawns, estates and by professional contractors where regular aeration forms part of an ongoing maintenance programme. We also offer specialist tow-behind aerator attachments, providing an efficient solution for maintaining larger properties and fine turf with professional results. |
Choosing The Right Lawn Scarifier Or Aerator
Power SourceChoose an electric scarifier for quieter operation and simple maintenance on smaller lawns. Cordless models offer greater freedom of movement, while a petrol scarifier is better suited to larger gardens and more demanding lawn renovation. |
Working WidthA narrower working width is ideal for smaller or more intricate gardens, while wider machines cover larger lawns more efficiently, reducing the number of passes required. |
Working DepthLook for adjustable working depth to match your lawn's condition. Light settings are suitable for routine maintenance, while deeper scarifying helps remove heavier thatch and moss build-up. |
Scarifying Rollers & Spring TinesSome machines feature interchangeable scarifying blades and spring tine rollers, allowing you to switch between removing moss and thatch or gently combing the lawn as conditions require. |
Collection BagsA generous collection bag helps gather moss, thatch, and other debris as you work, leaving a tidier finish and reducing the amount of manual raking afterwards. |
Professional FeaturesFor larger properties and commercial applications, consider machines with features such as hydrostatic drive, reciprocating tine systems, or tow-behind attachments. These designs improve productivity, reduce operator effort, and deliver consistent results across larger areas. |
Electric or Petrol Scarifier?
The right choice depends largely on the size of your lawn and how often you scarify.
Electric ScarifierAn electric scarifier is ideal for smaller to medium-sized gardens. They're typically lighter, quieter, and easier to manoeuvre, making them a great option for routine lawn maintenance. Cordless models offer additional freedom without the need for an extension lead, while remaining simple to store and maintain. |
Petrol ScarifierA petrol scarifier is better suited to larger lawns and more intensive renovation work. With greater power and unrestricted movement, petrol machines can tackle thicker moss, heavier thatch, and tougher ground more effectively. They're the preferred choice for larger domestic gardens, estates, and anyone looking to cover more ground quickly while achieving a deeper scarifying treatment. |
How To Choose The Right Lawn Scarifier Or Aerator

The right machine depends on your lawn size, its condition, and the type of maintenance you plan to carry out.
- Small Lawns: An electric scarifier is ideal for regular maintenance, offering quieter operation, low maintenance, and easy handling.
- Larger Lawns: A petrol scarifier provides the power and freedom to tackle larger areas and heavier thatch without the restriction of a cable.
- Heavy Moss & Thatch: Choose a scarifier with fixed blades or interchangeable scarifying rollers for more effective removal of built-up organic matter.
- Compacted Soil: A lawn aerator helps improve drainage and encourages stronger root growth by allowing air, water, and nutrients to reach the soil more easily.
- Sports Turf & Estates: For larger properties or professional use, a hollow tine aerator or heavy-duty tow-behind system delivers deeper aeration and increased productivity.
- Regular Lawn Maintenance: Machines with interchangeable scarifying and aerating rollers provide greater versatility, allowing you to carry out multiple lawn care tasks with a single machine.
If you're unsure which machine is right for your lawn, our lawn care guides on When to Scarify Your Lawn, How to Scarify a Lawn, and How to Aerate Your Lawn offer more detail to help you choose the best approach.
Expert Advice & Aftercare
- Our experienced team is on hand to provide expert advice before you buy, helping you select the best machine for your lawn and maintenance routine.
- We offer UK delivery on our range, with assembly and handover demonstrations available where appropriate.
- Long after your purchase, our on-site workshop provides servicing, repairs, and access to genuine replacement parts to keep your machine performing reliably.
- It's all part of the long-term support that's helped make Sims Garden Machinery a trusted name since 1908.
Find The Right Lawn Scarifier Or Aerator

From tackling moss and relieving compaction to carrying out a full lawn renovation, we're here to help you choose the right machine. Browse our range of lawn scarifiers and lawn aerators, or contact our knowledgeable team for expert advice, UK delivery, and dependable aftercare you can rely on.
Scarifier & Aerator FAQs
What is the difference between scarifying and aerating?
Scarifying removes moss, dead grass, and thatch from the lawn surface, while aerating relieves soil compaction by creating holes that improve the flow of air, water, and nutrients.
Used together, they promote stronger root growth and a healthier lawn.
When is the best time to aerate and scarify my lawn?
The best times are usually spring and early autumn, when grass is actively growing and can recover quickly. Avoid working on frozen, waterlogged, or drought-stressed lawns.
Should I choose an electric or petrol scarifier?
An electric scarifier is ideal for smaller gardens and regular maintenance. A petrol scarifier is better suited to larger lawns, heavier moss build-up and more demanding work where extra power is beneficial.
What is a hollow tine aerator and do I need one?
A hollow tine aerator removes small plugs of soil to reduce compaction and improve drainage. It's particularly effective on heavily used lawns, sports turf, and larger gardens where soil has become dense over time.
How often should I scarify my lawn?
Most lawns only need scarifying once or twice a year. Lawns with heavier moss or thatch may benefit from more frequent treatment as part of a wider lawn care programme.
Can scarifying damage my lawn?
Not when it's done correctly. Your lawn may look a little bare immediately afterwards, but removing thatch encourages healthier regrowth over the following weeks.
Do I need to collect the moss after scarifying?
Yes. Removing the moss and thatch prevents it from sitting back on the lawn and allows air, water, and nutrients to reach the soil more effectively.
Should I aerate before overseeding?
Yes. Aerating before overseeding improves seed-to-soil contact, helping new grass establish more quickly and evenly for a thicker lawn.







