Home Theatre near you

A dedicated room is the version that behaves predictably: one seating position, controllable light, surfaces chosen for sound, and no requirement to look like a sitting room during the day. It is normally a garage conversion, a cellar or a loft, and its limits are ceiling height and how the sound gets out of it.

A living room system is the common purchase and the harder engineering problem, because the room is already furnished, the screen has to live above a fireplace or in front of a window, and the speaker positions are constrained by doors and circulation. A great deal of what an installer is worth here is knowing which compromises cost the least.

A garden room is the third option and the one that removes the neighbour problem from inside the house and places it at the boundary instead. It also brings its own separate questions about power supply, insulation and whether the structure itself needed permission, which belong to the outdoor buildings guides rather than this one.

Section 2 of the Party Wall etc. Act 1996 lists the rights a building owner has over a party structure, and paragraph (f) of subsection (2) is the one a cinema room reaches for: to cut into a party structure for any purpose, which may be or include the purpose of inserting a damp proof course. Fixing an independent stud frame back to a party wall, chasing it for cabling, or taking the bearing of a heavy screen or a projector mount into it are all cutting into a party structure.

The procedure is not optional and not difficult. Section 3 requires the building owner to serve a party structure notice on the adjoining owner stating the name and address of the building owner, the nature and particulars of the proposed work, and the date on which the proposed work will begin — and the notice must be served at least two months before that date. Section 5 supplies the sting in the tail: if the adjoining owner does not serve a notice of consent within fourteen days, he is deemed to have dissented and a dispute is deemed to have arisen between the parties, which means surveyors and an award rather than a conversation.

The Act applies in England and Wales. Scotland and Northern Ireland have no equivalent statute, and rights over a shared wall there are governed by title deeds and the general law, so take local advice rather than assuming a notice period exists. In any country, the practical advice is the same: talk to the neighbour before the notice arrives, because a letter about cutting into a shared wall lands very differently when it is the first they have heard of it.

Approved Document E, Resistance to the passage of sound, supports Part E of Schedule 1 to the Building Regulations 2010 and is for use in England. The version in circulation is the 2003 edition incorporating the 2004, 2010, 2013 and 2015 amendments, and it took effect on 1 July 2003. Requirement E1 says dwelling-houses, flats and rooms for residential purposes shall be designed and constructed so as to provide reasonable resistance to sound from other parts of the same building and from adjoining buildings. Requirement E2 covers sound within a dwelling: internal walls between a bedroom or a room containing a water closet and other rooms, and internal floors.

Now read the limits on application, because they are what decide whether any of this touches your project. Requirement E2 does not apply to an internal wall which contains a door, does not apply to an internal wall separating an en suite toilet from the associated bedroom, and does not apply to existing walls and floors in a building subject to a material change of use. Requirement E3, on reverberation, applies only to the corridors, stairwells, hallways and entrance halls giving access to a flat or a room for residential purposes.

The conclusion is a useful one to hold on to when comparing quotations. Building a cinema room inside an existing house is not, in itself, work that Part E regulates, and nobody can hand you a compliance certificate for the sound insulation of a home cinema. What Part E does tell you is where the regulated thresholds sit — between dwellings, and around the common parts of flats — which is exactly where a neighbour's complaint will originate. If your conversion is in a flat, or is a material change of use creating a new dwelling, that is a different conversation to have with building control before the work starts.

Separately from the statutory nuisance regime, the Noise Act 1996 gives councils a quick route aimed specifically at night. Section 2 defines night hours as the period beginning with 11pm and ending with the following 7am, and allows a local authority to arrange for an officer to take reasonable steps to investigate a complaint that excessive noise is being emitted from a dwelling during those hours. The duty is discretionary rather than mandatory, so whether it is used depends on the council.

If the officer considers noise is being emitted during night hours and exceeds, or may exceed, the permitted level measured from within the complainant's dwelling, section 3 allows a warning notice to be served on the person appearing to be responsible, or left at the dwelling if nobody can be identified. The notice period begins not earlier than ten minutes after the notice is served and ends at 7am. Section 4 then makes it an offence for a person responsible to emit noise from the dwelling in that period exceeding the permitted level, subject to a defence of reasonable excuse, with a fine not exceeding level 3 on the standard scale on summary conviction.

The Act extends to England, Wales, Scotland and Northern Ireland, with modifications for Northern Ireland. None of which is a reason not to have a cinema room; it is a reason to put the money into decoupling and mass on the shared surfaces rather than into a larger subwoofer, and to agree a time of night after which the system comes down in level.

Sequence decides cost. Cable routes, speaker positions, screen height and seating distance have to be settled before anything is boarded, because every one of them is buried afterwards. Power and any dedicated circuits come before the plasterboard. Acoustic treatment and the finish come last, and the mistake that ruins the most projects is treating the room as a decorating job with electronics added at the end.

Where a party wall is involved, the notice has to go out two months before the work begins, so it belongs at the start of the programme rather than in the week before the builders arrive. And if the room is a garage conversion or a loft conversion, the building control route for that conversion is a separate matter that runs alongside, covered in the renovations guides.

Equipment is the part people compare and the part that varies least between quotations. What actually moves the number is the room: whether walls and ceiling are being built up for sound, whether a floor is being lifted, how much electrical work is needed and who certifies it, whether the ceiling has to come down for cabling, and whether a party wall is involved and therefore a notice period and possibly surveyors. Blackout, ventilation and seating are all easy to leave out of an early quotation and expensive to add to a finished one.

LokalMatch does the introduction, and that is the whole of its role. Describe the room, what you want to watch in it and how much building work you are willing to take on, once, with your postcode, and installers working in your area get in touch. There is no charge to homeowners; pros pay for the requests they receive. LokalMatch does not design rooms, does not carry out the work, sets no prices and does not vet, rank or recommend any business that responds.