Covering Trowbridge and nearby
If your building is in Trowbridge, or anywhere in the BA14 postcode district, we can arrange drive unit replacement. Visits are booked with you in advance, timed around opening hours where that matters, and carried out by engineers who work under our management.
In Trowbridge, automatic door needs often centre on the high street: independent shops, pharmacies, banks, cafés and estate agents. Frontages are often narrow, so the choice is usually between a compact sliding door, a folding door or a swing operator on the existing door.
Nearby towns we also list for drive unit replacement (straight-line distance): Melksham (4.8 miles), Bath (7.7 miles), Frome (8.0 miles), Warminster (8.0 miles), Chippenham (10.4 miles), Calne (12.0 miles).
What to think about for drive unit replacement in Trowbridge
- Check the power supply. A dedicated fused spur and isolator near the door is usually needed, and older installations sometimes need electrical work before the new operator goes in.
- Older shopfronts in Trowbridge may have headers made for discontinued operators. Adapter plates usually allow a new drive unit to fit, which the survey confirms before you commit.
- Busy retail entrances in Trowbridge may prefer the changeover after closing time or on a quiet trading day. Tell us your hours when you book the survey.
- Business parks and office blocks in Trowbridge with several identical doors can replace operators in phases, keeping at least one entrance open at all times.
- Battery backup is easier to add with a new drive unit. It lets the door open or close safely in a power cut, which matters most on escape routes.
Drive unit replacement in Trowbridge: guide prices
The site survey is free, including the measured drawing and a fixed, itemised written quote. Guide price: typically £1,995 to £3,995 ex VAT.
| Item | Guide price | Notes |
|---|---|---|
| New drive unit on an existing automatic sliding door | £1,995 – £3,995 | existing leaves kept, installed, ex VAT |
| New operator on an existing automatic swing door | £1,795 – £3,995 | installed, ex VAT |
| Sensors replaced at the same time | £195 – £495 | per sensor, ex VAT |
Standards and rules in England
Whoever motorises a manual door, or builds an automatic door from separate parts, may take on the manufacturer’s legal duties for the finished door: a risk assessment, a technical file kept available for the authorities, a Declaration of Conformity, the conformity marking and instructions. You receive the Declaration of Conformity and the instructions at handover. In Great Britain a new or converted powered door must meet the Supply of Machinery (Safety) Regulations 2008 before it is first used, and can carry the UKCA or the CE marking.
Standards are not retrospective, so an older door does not become unlawful when a standard is updated; a site-specific risk assessment shows whether any upgrades are sensible. BS EN 16005 is the current standard for the safety in use of powered pedestrian doors, and BS 7036-0:2014 is the British code of practice for risk assessment and risk reduction used alongside it. Standards are not law in themselves, but they are the recognised benchmark for showing an automatic door is safe to use, and we set up, test and document doors with reference to them.
How it works
- Get in touch. Call, email or use the form with the address and what you have in mind. If you are not sure which type of door suits, describe the entrance and we will suggest the options worth considering.
- Survey and advice. The survey costs nothing and carries no obligation. The engineer checks the site and explains which options suit the entrance, the people using it and the budget, before anything is priced.
- Quote in writing. You receive a fixed, itemised quote for drive unit replacement in Trowbridge, covering equipment, installation, testing and handover, with the lead time and payment stages set out clearly.
- Install, test, explain. The engineer installs and commissions the door, tests the sensors, safety functions and emergency behaviour, and walks you through the controls. The handover pack records what was installed and tested.
Send the make and model from the operator cover of your door in Trowbridge, and we will arrange a survey at no cost for a replacement drive unit.
Drive unit replacement in Trowbridge: questions
What if the frame of our door in Trowbridge is not worth keeping?
Then we will tell you. Damaged or corroded frames, glass that is not safety glass, or an opening that is too narrow for the people using it are all reasons to choose a new door instead. We can quote both options so you can compare them side by side.
How are prices worked out for drive unit replacement in Trowbridge?
Our guide is £1,995 to £3,995 excluding VAT (per door), the same guide prices we use across the UK. The free site survey in Trowbridge confirms the price as a fixed, itemised written quote, and the guide price tool gives you a range before anyone visits.
Do you replace automatic door drive units in Trowbridge?
Yes. We are the contracting party for drive unit replacements in Trowbridge, and the survey and changeover are carried out by specialist engineers we manage. The survey is free and checks that the frame and leaves are worth keeping. You then receive a fixed, itemised quote for the new operator, sensors and any other parts the door needs.
Do you provide paperwork for the converted door in Trowbridge?
Yes. When we fit a new drive unit we prepare the paperwork for the finished door, including the risk assessment, Declaration of Conformity and user instructions, and hand it over with the test results and settings. It belongs with your building records.
How are payments structured for work in Trowbridge?
Payment stages are set out in the quote before you accept it. Larger or made-to-order jobs may involve a deposit and a balance on completion, while smaller jobs may be invoiced once the work is finished. Nothing is charged for the survey itself, and the terms you accept are the terms that apply.
Will the building stay secure while the entrance is being changed?
We plan to keep the entrance usable or secure throughout. Where a door has to come out, the work is sequenced so the opening is closed up before the engineer leaves, or a temporary door or hoarding is arranged when a longer gap cannot be avoided. How this is handled for your site in Trowbridge is agreed before work starts.
Who is responsible for automatic doors on escape routes in Trowbridge?
Under the Regulatory Reform (Fire Safety) Order 2005 the responsible person for the premises must make sure escape routes work and fire safety equipment is maintained. Automatic doors on an escape route need fail-safe opening or break-out, set by the fire strategy.