The value of a Conservatory Ball Park Figure?

Is there really any value in a conservatory Ball Park Figure?

I recently wrote an article on this subject in our conservatory advice website.

There’s not a day goes past when we are not asked “Please can you provide a quote or budget price for a conservatory…” from a rough description over the phone. Quite often followed by “…we only want a ‘ball-park figure, we won’t hold you to it”. When you take into consideration the 30+ main considerations which can have significant effects on price, you might see how difficult it is to come up with a meaningful figure. For a conservatory of the same size and design, depending on the choices, the least costly way of being able to do the project, can be one third of the most expensive option.

So why is this so important? Continue reading →

Conservatory Price

Here’s another popular article I recently updated on this subject in our website.

Factors Affecting Conservatory Price:


  • Location: Frequently a conservatory is into a corner, with just two sides, or into a courtyard, with only one side.
  • Size: width, projection, frame height, height at house wall
  • Type: Conservatory with 75%+ glass roof, Orangery having flat roof and central lantern or Garden Room with tiled or slate roof, both the latter requiring building regulations.
  • Material: from white PVC at 45% of the cost of Oak, rising through coloured PVC, aluminium, pine, Sapele, Idigbo to the very best seasoned Oak
  • Frame type: Storm-proof sashes, standard with 70mm frames. Flush, conservation sashes with 90mm frames. Typical for Listed Properties.
  • Frame features: Do you require glazing bars, such as Georgian style squares, leaded lights or coloured glass features?
  • Doors: number and position of doors or double doors (recommended door width 700-800)
  • Window openings: number and position of openings (recommended window width 700-800) Recommended min of 2 full height openings, 4 if conservatory over 10 sq.m.
  • Frame/roof centres: Important – window sashes shouldn’t exceed 800mm, if you want the roof rafters to align with the frames.
  • Roof Design: the simpler the design, the lower the price.
  • Box Gutters: Does the design require a box gutter. If so, does it need to be structural?
  • Insulation: A rated glazing with minimum of 1.1 u value insulation recommended
  • Roof glass: solar control glass should be standard unless in the shadow of a North facing house (0.9-1.0 u value, keeps out up to 78% of unwanted heat)
  • Frame glass: clear solar control glass with 1.0 u value, should be used on South facing conservatories.
  • Roof Ventilation: warm air rises – it’s essential to fit roof vents minimum one up to 12 sq.m., two over. These can be manual, electric or automatic.
  • Planning: Depending upon the position and size, amongst other factors, such as being Listed or in a conservation area or area of outstanding natural beauty, etc. will determine whether you need to allow for Planning Costs.

Once you have decided upon the design and specifications for you conservatory, the following are the building work considerations whether the material be PVC, Aluminium, Pine, Sapele, Idigbo or seasoned Oak.

To explore the building cost considerations? Continue reading →

Conservatory Brochures

I wrote this article recently on

99% of our enquiries come via the internet so, both for environmental and economic reasons, we no longer send out printed conservatory brochures. Instead, we took a policy decision several years ago to concentrate on producing the best and most informative websites on conservatories in the world. Something I believe we have now achieved and which has substantially increased our enquiry level, since doing so. To find more information about our main conservatory websites, photo gallery, etc. Continue reading →

Astragal Bars

New A or B Energy Rated

Ideal for a multitude of applications to give that authentic look and feel

Astragal Bars sometime called Cottage Bars can be fitted to any product within the Hallmark range. They enhance the look of windows, doors & conservatories by giving them the traditional Georgian appearance of individual panes, whether in new or old homes. They are aeshetically more pleasing that internal Georgian Bars, especially when in a dark colour. Mahobany wooodgrain foil, Rosewood woodgrain foil, black or brown integral Georgian bars, in particular tend to merge into the background and disappear behind the reflections of the glass. By using astragal bars, this does not happen. To make the astragal bars look like individually glazed panes, there is a dummy spacer bar between the glass immediately behind the bars, so that when viewed from an angle look like individual sealed units. What’s more, these bars are slightly smaller than the sealed unit edge spacer bar, so as not to create a cold bridge across the glass. A 16mm gap sealed unit, will normally have 12mm dummy spacers behind the astragal bars. Continue reading

Colours and woodgrains

Window Options

Irish Oak Astragal Bar Window

Colours and woodgrains – A finish to suit you.

Constructed from the finest, low maintenance materials, you can customise your windows to suit your precise needs.

In addition to brilliant white, there are various foiled woodgrain finishes available, foiled both sides, or with white internally – There are also over one hundred RAL colour finishes to choose from.

The days of limited choice in PVC of white, golden oak and mahogany are gone forever, now you can have almost any colour you like. If you like oak, you really do need to see a sample of the Irish Oak. It’s almost imperceptible from real oak. Continue reading

Window Security

Window Security

All Hallmark windows and doors have a high level of security as standard…

However, even higher levels can be achieved since are accredited by Secure By Design (SBD). As crime figures for burglary increase it makes sense to fit the best locking systems and to ensure your window security is the best available. As they say, it’s no good closing the gate after the horse has bolted.

Windows can be brought up to Secured By Design standard and have their security enhanced by fitting ‘laminated’ glass and ‘hinge protectors’. In fact, even with only one of these items, security is enhanced.

Doors can have their security enhanced by fitting the ‘RASP cylinder protector kit’ and/or ‘laminate glass’. To achieve Secured By Design a door should have laminated glass top and bottom with a midrail and the ‘RASP’ cylinder protector kit. Continue reading

Conservatory Building Regulations

Here’s more important information on Building Regulations requirements linked here from our Richmond Oak Holding Company website…

Conservatory Building Regulations set minimum standards in the construction of buildings for the health, safety, comfort and convenience of building users.

Building Regulations Cover:

Access and facilities for disabled people Damp-proofing Drainage Electrical safety Energy conservation Fire precautions Means of escape Sound insulation Structural stability Ventilation

Download a free copy of the Building Regulations Explanatory Booklet for England & Wales from the Communities and Local Government website.

Building Regulations & Conservatories

Generally the regulations require that conservatories:

  • Are sited at ground level
  • Have a floor area not exceeding 30 sq meters
  • Are substantially glazed – no less than 50%
  • Have a roof more than 75% glazed
  • Glazing satisfies Building Regulations Part N
  • Can be permanently separated from the remainder of the property by means of a door or other barrier
  • Do not contain any drainage facilities such as a sink, WC or washing machine
  • Radiators, if fitted, are thermostatically controlled and have an ON/OFF control

For more informtion on Building Regulations requirements: Continue reading →

Conservatory Planning Permission

Here’s important information on Planning Permission requirements linked here from our Richmond Oak Holding Company website…

Conservatory Planning Permission and Building Regulations are two different issues in the planning and building of a conservatory and should not be confused even though your Local Authority manage both. Since the changes in 2008, with respect to planning, there is no difference between a single storey solid roof extension, a conservatory, an orangery or a tiled/slate roof garden room.

Planning Permission – is the permission to erect or extend a conservatory, orangery or garden room

Building Regulations – define how a conservatory, orangery or garden room must be built

Properties that have not already been extended have Permitted Development Rights, although these are not applicable if it is a Listed Building, in a Conservation Area or Area of Outstanding Natural Beauty.

You will find a comprehensive guide to making a Planning Application at the government Planning Portal. Along with an application for Planning Permission you will need to supply a Certificate of Ownership, an Ordnance Survey based Location Plan and a Design and Access Statement. Sometimes there is also a requireent for a flood risk assessment.

It can be very difficult to obtain Conservatory Planning Permissionfor conservatories added to Barn Conversions and Flats. Continue reading →

Conservatory Building and Installation Options

Conservatory Building and Installation Options

Richmond Oak is one of the few conservatory companies offering clients the full range of conservatory building and installation options, providing choices from supply-only, to a full ‘Turn-Key’ system from Survey, through planning and building regulations (where required), to the final completed job. This includes all supervised building, electrical & plumbing works, underfloor heating and floor tiling, where required. Each construction is project managed from initial designthrough to completion, by our team of skilled technicians.

Hallmark Conservatories is also happy to work alongside your own preferred builders. We will provide the same information, drawings and specifications to your builder, as we do our own. At the contract stage, the only things we don’t usually get involved with are selection of floor finishes, choosing light fittings or other works such as kitchens, or final decoration of the plastered walls, where required. Continue reading

IWA Insurance backed Guarantee & Deposit Indemnity

We have some interesting information about our IWA Insurance backed Guarantee & Deposit Indemnity program linked here from our Richmond Oak Holding Company website…

We understand that one of the biggest concerns of our clients is losing their deposit or guarantee, should the company they contract with cease trading. The difficult trading conditions during the past four years have led to hundreds of home improvement companies going out of business, leaving thousands of their customers with lost deposits and invalidated guarantees. This includes a number of substantial, established timber conservatory companies like Baltic Pine, Glass Houses, Priory Conservatories, Fawsley, Durabuild and more recently, the oldest and largest company in the industry, Amdega.

I know that our potential clients may not feel so confident as we are about our business and now we are able to provide guaranteed reassurance that purchasing from us is as safe as we claim.

Richmond Oak Conservatories have selected the IWA Insurance backed Guarantee & Deposit Indemnity scheme. Continue reading →

Conservatory Photos