Covering Brentwood and nearby
Addresses anywhere in the CM13, CM14 and CM15 postcode districts can book drive unit replacement through us. The engineer who attends works under our management and travels to the site. There is no branch in Brentwood, so the price, the booking and the paperwork all come from one place.
Around Brentwood there is usually a mix of retail parks, business parks and town-centre shops, each with different door needs. A retail park unit may need a wide bi-parting door for trolleys, while a town-centre shop often has a narrow frontage better suited to a single slider or a folding door.
Nearby towns we also list for drive unit replacement (straight-line distance): Billericay (4.9 miles), Hornchurch (5.9 miles), Romford (6.0 miles), Basildon (7.5 miles), Dagenham (7.7 miles), South Ockendon (7.9 miles).
What to think about for drive unit replacement in Brentwood
- If the door is on an escape route, the new drive unit must be set up to open, break out or be openable by hand, as the building's fire strategy requires.
- Ask for the paperwork. A converted door should come with its risk assessment, Declaration of Conformity and user instructions, which belong with your building and maintenance records.
- Worn floor guides and rollers can shorten the life of a new operator. It is often worth replacing them during the same visit rather than coming back later.
- Listed buildings and conservation areas in Brentwood make it attractive to keep the existing frame. A new operator inside the existing header changes little that can be seen.
- Older shopfronts in Brentwood may have headers made for discontinued operators. Adapter plates usually allow a new drive unit to fit, which the survey confirms before you commit.
Drive unit replacement in Brentwood: 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
- Send photos and the address. A few pictures of the door from both sides, the address in Brentwood and a note of who uses the entrance help us understand the job before anyone visits the site.
- No-cost survey on site. We arrange a survey at a time that suits the building. The engineer records measurements, fixings and power, plus any constraints such as listed status, opening hours or access for deliveries.
- Itemised quote to approve. We price every element of the work on drive unit replacement separately in a written quote that you can check, share and approve. Lead time and payment stages are stated, and nothing is ordered until you accept.
- Fit, test and hand over. On the agreed dates the engineer installs the equipment, commissions the operator and tests each safety function. You get a demonstration, the test record and any conformity paperwork that applies to the work.
Get in touch about drive unit replacement in Brentwood. The door is surveyed free of charge and the changeover planned around your opening hours.
Drive unit replacement in Brentwood: questions
Do you replace automatic door drive units in Brentwood?
Yes. We are the contracting party for drive unit replacements in Brentwood, 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.
Can you give me a price for drive unit replacement in Brentwood?
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 Brentwood confirms the price as a fixed, itemised written quote, and the guide price tool gives you a range before anyone visits.
Can you fit a new operator to a door another company installed in Brentwood?
Yes. We replace drive units on doors whoever fitted them. The survey identifies the existing header, leaves and track, and adapter plates usually let a new drive unit from one of the major European operator brands fit without changing the frame.
What lead time should we expect in Brentwood?
Once the quote is accepted, drive units are typically 2 to 4 weeks to arrive, depending on the length and weight rating needed. The changeover date is agreed with you as soon as the parts are confirmed, and it can be planned around your opening hours.
Is there a warranty on drive unit replacement?
Yes. The warranty terms for the equipment and the installation are set out in your written quote, so you can see exactly what is covered before you accept. Keeping the door serviced at the recommended intervals helps keep it in good order, and the quote explains any conditions that apply to the warranty.
What do you need from us for parking and access in Brentwood?
Somewhere for the engineer's van as close to the entrance as possible, and a clear working area around the door. If parking is restricted, loading rules apply or the site has security procedures, tell us when you book. Those details go into the plan so the visit is not held up on the day.
Which building regulations apply to a new automatic entrance in Brentwood?
In England the guidance is Approved Document M (Volume 2) for access, Approved Document B for fire safety and escape routes, and Approved Document K for glazing and powered doors. A new entrance can count as building work, so building control should be involved before it is ordered.