Doors are more than just entry points, they play a central role in keeping your property safe, secure, and energy efficient. A professionally fitted door closer ensures that your doors shut smoothly, protect against draughts, and add an extra layer of safety. At Active Lock Centre, we specialise in door closer installation and repairs across Welwyn Garden City, Hatfield, and the surrounding Hertfordshire area.
📞 Call us today on 01707 242874 for fast, professional fitting with no callout fees.
What is a Door Closer?
A door closer is a mechanical device that automatically closes a door after it is opened. Common in schools, offices, shops, and residential blocks, they ensure that doors don’t slam, remain secure, and comply with fire safety standards.
Types of door closers include:
- Hydraulic door closers – most common, suitable for commercial and domestic use.
- Pneumatic door closers – lighter duty, often found on internal doors.
- Electromechanical door closers – used on automatic or access-controlled doors.

Why Are Door Closers Important?
Installing a door closer is not just about convenience, it’s about security, safety, and compliance with fire safety regulations. For more details, see the UK Government’s fire safety guidance.
- Security – keeps doors closed, preventing unauthorised access.
- Fire safety – ensures doors shut automatically, slowing down the spread of fire.
- Energy efficiency – stops heat loss by keeping doors closed in winter.
- Noise reduction – prevents slamming and creates a calmer environment.
- Accessibility – properly adjusted closers allow smooth opening for all users.
👉 Related service: Lock Installations in Welwyn Garden City & Hatfield

Professional Door Closer Installation by Active Lock Centre
While DIY installation may seem tempting, incorrect fitting often leads to slamming doors, broken fixings, or safety risks. At Active Lock Centre, our trained locksmiths ensure every door closer is fitted to the manufacturer’s standards and adjusted to your requirements.
Our Step-by-Step Installation Process
Step 1: Choosing the Right Door Closer
We select a closer that matches your door’s weight, size, and frequency of use. Heavy-duty models are used for busy commercial spaces, while lighter models are fitted to residential doors.
Step 2: Preparing the Door and Frame
Our locksmiths take precise measurements and mark the bracket positions before drilling.
Step 3: Installing the Body and Arm
The closer body and arm are secured in place with professional fixings for long-term reliability.
Step 4: Adjustment and Testing
We fine-tune the closing speed, latching force, and swing angle to make sure the door operates smoothly without slamming.

👉 Related service: Lock Repairs in Welwyn Garden City
Door Closer Repairs and Maintenance
Door closers, like any mechanical part, wear down over time. Signs you may need a repair include:
- The door slams shut too quickly.
- The door does not close fully.
- Oil leaking from the closer.
- Noisy operation or stiffness.

At Active Lock Centre, we provide door closer repairs in Welwyn Garden City, Hatfield, and across Hertfordshire. In many cases, adjustment or servicing solves the issue, saving you the cost of a replacement.
👉 Related service: Emergency Locksmith in Hatfield
Benefits of Using Active Lock Centre for Door Closers
- Over 40 years’ locksmith experience.
- Local and family-run, not a national call centre.
- Master Locksmiths Association member.
- Fast response across Hertfordshire.
- No callout fees and clear pricing.
- 24/7 emergency support if required.
📞 Call us now on 01707 242874 for same-day installation or repairs.

Frequently Asked Questions
Q: Can you fit a door closer on a glass door?
A: Yes, with the correct brackets and fixings.
Q: How long do door closers last?
A: Typically between 5 and 15 years, depending on quality and usage.
Q: What if my door closer is noisy?
A: This may be caused by loose screws or worn parts. We can service or replace it quickly.
Q: Can I fit a door closer myself?
A: You can try, but professional fitting ensures correct alignment and long-term reliability.
👉 Related service: Lock Replacement in Hertfordshire
Areas We Cover
Our locksmiths provide door closer services across Hertfordshire, including:
- Welwyn Garden City
- Hatfield
- Hertford
- Stevenage
- St Albans
- Potters Bar
If you are searching for a local door closer specialist near you, Active Lock Centre has you covered.
Call Active Lock Centre Today
Whether you need a new installation, adjustment, or repair, our expert locksmiths are here to help.
📞 Call 01707 242874 for professional door closer fitting and repairs in Welwyn Garden City, Hatfield, and across Hertfordshire.