Interpreting Services

British Sign Language (BSL) Interpreting Services

NRCPD-registered BSL interpreters, on site or by video, so Deaf and hard-of-hearing people can take full part in appointments, meetings and events.

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British Sign Language interpreting services make communication work both ways between a Deaf person who signs and a hearing person who does not. A BSL interpreter voices what is signed and signs what is spoken, live, so a Deaf patient, employee or witness takes part as an equal instead of catching up afterwards. For UK employers, NHS trusts and public bodies it is usually a reasonable adjustment under the Equality Act 2010, not an optional extra.

Prism Linguistics supplies NRCPD-registered BSL interpreters across the UK, on site and by video. We work with NHS trusts, employers, courts, schools, councils and event organisers, and a BSL booking gets exactly the same care as any spoken-language assignment in our wider interpreting services. Book a week or two ahead where you can. The registered BSL pool in this country is small, and good interpreters are booked early.

What a BSL interpreter does in practice

A BSL interpreter works in the moment, with no chance to go back and correct a line. They sit or stand where the Deaf person can see them and still watch whoever is speaking, which usually means beside the doctor, the manager or the magistrate rather than beside the Deaf person. Good light matters, and so does a seat that is not directly in front of a window.

They interpret everything said in the room, including the aside to a colleague. That is the point: a Deaf person should get the same conversation a hearing person gets, not a summary. What an interpreter will not do is give an opinion, answer on the Deaf person's behalf, or act as an advocate. Send any material over in advance if you have it, such as an agenda or the acronyms your service uses. Fingerspelling an unfamiliar drug name in front of a worried patient is slow and clumsy, and five minutes of preparation removes the problem.

BSL is a language of its own, not English on the hands

This is the thing hearing organisations most often get wrong. British Sign Language has its own grammar, word order and idioms. It is not a signed version of English. Topic tends to come before comment, the space in front of the signer is used grammatically to place people and events, and facial expression carries grammar rather than just mood: a raised eyebrow can turn a statement into a question. There is regional variation as well, with signs for numbers and place names differing between Glasgow, Birmingham and the south east much as accents differ in speech.

Two practical consequences follow. A Deaf person whose first language is BSL may not be a fluent reader of written English, so handing over a leaflet is not the same as providing access. And Sign Supported English is a different thing again, following spoken English word order with signs alongside it, often preferred by people who became deaf later in life. Ask the person which they use. Do not assume from the word "deaf" on a form.

Deaf access and the Equality Act: why most bookings happen

Nearly every organisation that calls us about BSL is doing so because of the Equality Act 2010. Service providers and employers have to make reasonable adjustments so a Deaf person is not put at a substantial disadvantage, and the duty is anticipatory for service providers: you are expected to have thought about it before a Deaf person walks in, not to improvise on the day. In practice that often means a qualified BSL interpreter for the appointment, the disciplinary meeting, the training day or the public event.

NHS organisations in England also work to the Accessible Information Standard, which asks services to identify a patient's communication needs, record them and act on them. It is why a well-run trust books the interpreter at the same time it books the clinic slot, rather than discovering the problem in the waiting room. If you employ a Deaf member of staff, the government's Access to Work scheme can help fund ongoing support, and we can invoice in a way that fits how that scheme is administered.

One honest caveat: we arrange interpreters, we are not lawyers. If you need a firm view on your duty in a specific case, take proper advice. What we can tell you is what the interpreting costs and how quickly it can be arranged.

Where we work

Sign language interpreters for NHS, work, legal and event settings

Interpreters are matched to the setting, not just the language. A colleague who is superb in a training room is not automatically the right fit for a mental health assessment.

Healthcare and the NHS

GP and hospital appointments, mental health assessments, maternity care and audiology, with interpreters used to the pace of a busy clinic.

Employment and HR

Interviews, inductions, appraisals, disciplinary meetings and team training. We can hold a recurring slot for a Deaf employee under Access to Work.

Legal and courts

Solicitor meetings, tribunals and court hearings, with interpreters experienced in legal language and the formality of a courtroom. Long hearings normally need two.

Events and conferences

Stage interpreting for talks, ceremonies, AGMs and public meetings, positioned and lit so the audience sees speaker and interpreter together.

Education

Parents' evenings, admissions meetings, SEN and EHCP reviews and open days, so Deaf parents and students are part of the conversation rather than the subject of it.

Council and public services

Housing appointments, benefits and social care reviews, consultations and customer-facing counters where a Deaf resident needs to be heard properly.

Remote and video BSL interpreting: when it works

A BSL interpreter can be joined into a video call rather than travelling to you, which is the same arrangement we use for spoken-language video interpreting. It saves travel time on short appointments, it lets you cover a last-minute slot when nobody local is free, and for a fifteen-minute review or a quick HR catch-up it is perfectly adequate.

It has real limits, and we would rather say so. Sign language needs the hands, the face and the upper body in frame, so a laptop camera pointed at the ceiling is useless, and bandwidth matters more than on a spoken call because a frozen frame loses a sign completely. Group discussion is hard when only one person can be visible at a time. Our rule of thumb: short, routine, one-to-one and low stakes, remote is fine. Long, emotional, formal or legally significant, book someone to attend in person. The same trade-off is set out on our face-to-face interpreting and telephone interpreting pages.

Lipspeaking, Sign Supported English and deafblind support

Not every Deaf or hard-of-hearing person uses British Sign Language, and booking a BSL interpreter for someone who does not sign helps nobody. Alongside BSL interpreting we can arrange:

  • Lipspeakers, who repeat what is said clearly and silently, with the shape and rhythm of the words preserved, for people who lip-read rather than sign.
  • Sign Supported English, which follows spoken English word order with signs alongside, often preferred by people who grew up hearing and lost their hearing later.
  • Interpreters for Deafblind people, working hands-on so signs are followed by touch, or using the deafblind manual alphabet, at the pace the person needs.

If you are not sure what a person needs, ask them, and tell us what they say. It takes one line on the booking form and saves an appointment being wasted. Where the answer turns out to be a spoken language rather than a sign language, we cover more than 300 of those as well, from a Polish interpreter to an Arabic interpreter.

What BSL interpreting costs

BSL is charged by the hour with travel on top, and there is a minimum booking, because the interpreter is committing to your slot and turning other work away. A three-hour minimum is typical for sign language work, which surprises people booking a forty-minute clinic appointment for the first time. It is not padding. It reflects a small national pool and the travel involved in getting one of them to your building.

What moves the figure is length, location, notice, timing and headcount. A full-day conference needs two interpreters in rotation. Evening and weekend work carries an out-of-hours premium, a venue an hour from the nearest registered interpreter carries travel, and short notice costs more than a booking made three weeks out. Indicative UK ranges for BSL and every other mode, minimums included, are published on our interpreter pricing page. For a firm number, send the date, location, length and setting through the quote form.

How booking works

How to book a BSL interpreter, and how far ahead

Lead time is the one thing worth planning for. Registered BSL interpreters are a much smaller group than spoken-language linguists, and their diaries reflect it.

  1. 1

    Tell us the essentials

    Date, start and finish time, full venue address, the type of appointment, and how the Deaf person prefers to communicate. Use the online form or call +44 (0) 20 3880 6688.

  2. 2

    Book earlier than you would for a spoken language

    One to two weeks is ideal. A common spoken language in a big city can often be covered in a few hours; BSL rarely can. We will always try urgent requests, and we will tell you straight if the answer is no.

  3. 3

    We confirm the interpreter and the price

    You get the interpreter's name, their registration details and a fixed cost including travel, plus a note if the assignment is long enough to need two interpreters.

  4. 4

    On the day

    Send over agendas or technical terms beforehand. The interpreter arrives early, agrees positioning and lighting, and introduces themselves to both parties. We can hold the same interpreter for a follow-up so the Deaf person is not starting again with a stranger.

Questions people ask

BSL interpreting FAQs

Is my organisation legally required to provide a BSL interpreter?
Often, yes. Under the Equality Act 2010, service providers and employers must make reasonable adjustments so a Deaf person is not put at a disadvantage. For many appointments, meetings and events that means booking a qualified BSL interpreter. Failing to do so can amount to disability discrimination. We arrange interpreters rather than give legal advice, so if you need a view on your own duty, take proper advice.
Is British Sign Language the same as signed English?
No. British Sign Language is a language in its own right, with its own grammar and word order that are nothing like spoken English. Signed English and Sign Supported English follow English word order instead, and some people prefer them. That is why we ask which one the Deaf person uses before we assign anyone.
What does NRCPD registration mean?
NRCPD is the National Registers of Communication Professionals working with Deaf and Deafblind people. An interpreter on the register is qualified, insured, DBS-checked and bound by a code of conduct. We use NRCPD-registered interpreters, which is the standard the NHS and courts expect.
How much notice do you need to book a BSL interpreter?
One to two weeks is ideal. The pool of registered BSL interpreters in the UK is far smaller than for spoken languages, so diaries fill up further ahead than they do for, say, a Polish or Urdu interpreter. We can sometimes cover urgent requests, particularly in London and the larger cities, and we will tell you honestly what is available when you call.
Can you provide BSL interpreting online?
Yes. Video remote interpreting connects a BSL interpreter into a video call, which works well for shorter meetings and appointments where travel would not be practical. For long, sensitive or formal occasions, an interpreter in the room is usually still the better choice.
Do you offer lipspeakers or interpreters for Deafblind people?
Yes. Alongside BSL interpreting we can arrange lipspeakers, Sign Supported English, and interpreters who work with Deafblind people using hands-on signing or the deafblind manual alphabet. Tell us how the person prefers to communicate and we will match the right professional.
Do I need two BSL interpreters for a long meeting or event?
Often, yes. Signing continuously is physically demanding and accuracy drops once an interpreter has been working flat out for a long stretch, so for full days, conferences and long hearings two interpreters usually work as a team and swap at intervals. For a routine hospital appointment or a one-hour meeting, one interpreter is normally fine. We will tell you which your booking needs before you confirm.
How much does a BSL interpreter cost?
BSL is priced by the hour with travel on top, and a minimum booking applies because the interpreter is holding your slot and turning down other work. What moves the price is the length of the assignment, the location, how much notice you give, whether it falls outside office hours and whether a second interpreter is needed. Indicative UK ranges are on our pricing page, and we confirm a fixed figure before you commit.

Need a BSL interpreter?

Tell us the date, the setting and where it is. We will confirm a registered interpreter and a clear price as quickly as we can.