DIY Home security tips every homeowner can safely do (without breaking Your locks)

When it comes to protecting your home, most people think about high-tech alarms, CCTV systems, or upgrading to the latest smart lock.

While these are excellent investments, many homeowners overlook the simple, everyday steps that can make a huge difference to security. The good news is that there are several DIY home security measures you can take to maintain your locks, secure vulnerable entry points, and improve overall safety without needing special tools or advanced knowledge.

As professional locksmiths serving Lincoln and the surrounding areas, we often meet customers who could have prevented a small issue from turning into an emergency call-out by carrying out some very basic checks. This article outlines practical security tips you can safely do yourself, alongside clear guidance on when it’s time to leave things to a qualified locksmith like our Local Locksmith in Lincoln.

1. Regular visual lock inspections

Locks, like any mechanical device, wear down over time. Before you reach the stage where your key won’t turn or a mechanism seizes completely, there are usually visible warning signs. A simple monthly inspection can save you time, stress, and money.

Look out for:

• Loose screws or handles – tighten gently with a screwdriver to prevent further wear.
• Rust, dirt, or discolouration – particularly on external locks exposed to weather.
• Difficulty turning the key – a stiff or grinding motion may indicate internal issues.

If you notice cracks around the lock or the door frame seems misaligned, this usually points to deeper problems with the mechanism or hinges. In that case, it’s best to call a locksmith before the issue worsens.

2. Caring for keys and locks

A lock is only as reliable as the key that opens it. Bent, worn, or poorly cut keys place unnecessary strain on the mechanism. Avoid using a damaged key and never force it into the lock.

For everyday care:

• Use graphite powder or silicone spray to lubricate the lock. Avoid oil-based products such as WD-40, as they attract dust and grime.
• Keep your keys clean – dirt and grit from your pocket can transfer into the lock and cause sticking.
• Replace keys that show visible wear rather than making extra copies of a worn key.
• These simple steps help extend the life of your locks and ensure smooth, reliable operation.

3. Strengthening doors and frames

Even the strongest lock won’t protect your home if the surrounding frame is weak. Fortunately, there are simple reinforcements homeowners can fit themselves.

• Tighten hinge screws to ensure the door sits securely in its frame.
• Install a door viewer (peephole) or security chain, both of which are inexpensive and easy to fit.
• Check for gaps – draught strips not only improve insulation but also make it harder for a door to rattle or be forced.

For UPVC or composite doors, avoid DIY home security adjustments to the internal gearbox or multi-point locking system. These mechanisms are complex and can be easily damaged if tampered with. If you suspect an alignment issue, contact a locksmith.

4. Windows and patio door security

Windows are a common entry point for burglars, especially if left unsecured. Thankfully, improving window security doesn’t always require specialist tools.

• Fit sash window restrictors to limit how far a window can open.
• For sliding patio doors, check that the track is clear of dirt and debris, which can prevent the lock from engaging fully.
• Use secondary locking devices, such as simple bars or dowels, to stop sliding doors being forced open.

Always make sure windows are locked when you leave the house. Burglars often look for easy opportunities, and an unlocked window can be all it takes.

5. Garden, shed, and garage security

Your garden sheds and garages often contain expensive items such as bicycles, tools, and gardening equipment – all attractive to opportunistic thieves.

Practical DIY home security tips include:

• Use weather-resistant padlocks with a closed shackle design for extra protection.
• Install motion-sensor lights around sheds, garages, and back gardens to deter intruders.
• Store ladders horizontally or lock them down so they can’t be used to reach upstairs windows.

Remember that the security of outbuildings contributes to the overall safety of your property. A burglar who enters through a shed may find tools they can then use to break into your home.

6. Everyday Security Habits

The most effective security upgrades aren’t always physical products – often it’s the daily routines you build that keep your home safe. Burglars usually look for easy opportunities, so removing those opportunities through simple habits can be just as powerful as installing new locks. Here are some everyday practices every homeowner should adopt:

Always Lock Up, Even When You’re In

Many break-ins occur during the day when residents are at home but doors are left unlocked. Make it second nature to lock your front and back doors, even if you’re only popping into the garden or upstairs for a few minutes. Opportunistic thieves often try handles to see if doors are open.

Check All Entry Points at Night

Create a bedtime routine that includes walking through the house and checking:

• Front and back doors.
• Patio or French doors.
• Windows, especially on the ground floor.
• Side gates or garage doors.

This simple “lock-up walk” gives peace of mind and reduces the chance of leaving an access point open by mistake.

Keep Keys Secure

Where you place your keys matters. Don’t leave them in locks or within arm’s reach of the letterbox. Burglars use a tool called “fishing” to hook keys through openings. Avoid placing keys on windowsills where they can be seen from outside. Keep spare sets in a secure drawer, not in the obvious “key bowl” by the front door.

Control Spare Keys

If you’ve given a spare key to a neighbour, cleaner, or friend, keep a note of who has access. Retrieve keys when they’re no longer needed, and if you’re worried about lost copies, consider having the lock rekeyed by a locksmith.

Be Smart with Social Media

It’s tempting to share holiday snaps or nights out online, but burglars often scan social media for signs that a property is empty. Delay posting until you return, and avoid revealing dates when your home will be vacant.

Use Lights to Create the Illusion of Occupancy

When you’re away, set up timers or smart plugs to turn on lamps in the evening. A well-lit, lived-in look is one of the simplest deterrents to opportunistic crime.

Secure Sheds and Garages Every Time

Many homeowners are careful with front doors but forget outbuildings. Locking sheds, garages, and garden gates as part of your routine denies burglars access to tools or ladders that could help them break into your main home.

Be Discreet with Packaging

After buying a new TV, laptop, or games console, avoid leaving packaging in plain sight of the recycling bin. Flatten boxes and place them inside bins or take them directly to a recycling centre. Advertising expensive new purchases can make your home a target.

Get to Know Your Neighbours

A trusted neighbour can be an extra pair of eyes when you’re away. Good relationships in your community mean someone is more likely to notice unusual activity around your property.

7. When Not to DIY

While the above tips are safe for homeowners to carry out, it’s important to know where to draw the line. Complex lock issues, damaged keys stuck inside a cylinder, or problems with multipoint mechanisms should always be handled by a professional. Attempting DIY home security repairs in these cases can cause expensive damage or even invalidate your insurance.

That’s where Local Locksmith Lincoln comes in. We provide fast, professional support for:

• Emergency lockouts.
• UPVC and composite door lock repairs.
• Lock upgrades to meet insurance standards.
• Smart lock installation and advice.

Final Thoughts

DIY maintenance and simple reinforcements can make a big difference to your home’s security, helping you avoid unnecessary stress and extending the life of your locks. From lubricating cylinders to fitting window restrictors, these tasks are safe, affordable, and effective.

However, when issues go beyond surface care – whether it’s a seized lock, a misaligned door, or a security upgrade – calling in the experts is the safest choice. Local Locksmith Lincoln is always here to help homeowners and businesses across Lincoln secure what matters most.