Our services include:

  • Groundworks
  • Construction
  • Structural Alterations
  • Stud Walls
  • Plastering and Insulation
  • Carpentry
  • Kitchen Fitting
  • Landscaping
  • Plumbing & Heating (as part of a project)
  • Electrics (as part of a project)

We also can put you in touch with the following additional trades should you need them:

  • Wall and Floor Tiling Works
  • Painting & Decorating

Andrew Christopher Builders provide a comprehensive range of services derived from years of combined experience in all aspects of the construction industry. Andrew Christopher Builders offer a level of professionalism which is rarely found today in the private residential and smaller commercial construction sector. We pride ourselves on customer satisfaction, achieved by attention to detail and understanding our customers needs.

Insurance backed for peace of mind, we carry full Public and Employers Liability insurance.

We cover most areas of Dorset including; Weymouth, Portland, Dorchester, Bridport and all surrounding villages.

Free Consultation Visit

From your initial inquiry, Andrew will visit you and quickly determine the feasibility of your plans. Your specific requirements will be discussed with you and advice given on the most suitable extension for your property.

Planning and Building Regulations

If you decide to proceed we can provide you with contact details of local architects who will work with you to draw up your plans and help you through the planning and building regulation process.


With Andrew Christopher Builders Ltd you can be confident that your conversion will be installed by a qualified and highly skilled work force, who will carry out the work quickly and efficiently with the minimum disturbance and inconvenience.

FREE estimates and references available on request, please contact us


This is a great way for altering your home to meet the changing you need. Your family is growing? No need to move…let´s talk about extensions.

Loft Conversions

A loft conversion can be a great step to add value to your property. Also many families choose a loft conversion to obtain more space to their property instead of moving.

Renovations / Alterations

We have the skills to bring improvements to your home and living space. We can help you create your dream home with the perfect renovation or alteration.

Landscaping & Paving

We transform your garden into the place you always dreamed of. From paving to concreting, from patios to walling, we have it covered.


Extending Your Home

A well designed and built extension provides you with extra living space that blends seamlessly into your house and directly increases its value.

Complete service

We have all the necessary skills and experience required to handle your project from start to finish. From just one call we will coordinate the whole project and provide all services you need. From concept and design to installation we provide a complete service.

Loft Conversions

Loft conversions are an ideal way to increase the living area of your house, without eating into your valuable garden space. Loft conversions are a guaranteed way of increasing the value of your house by turning your unused attic into a stylish new living space.

Do I need planning permission for my loft conversion?

There are two basic types of loft conversions – a “roofline” conversion, and a “dormer” conversion with many variations of the latter.

“Roofline” loft conversions

With this type of conversion, we would create a room/rooms within the existing shape of the roof at present using Velux windows for light and ventilation. With this type of conversion, we would not extend or alter the existing shape of the roof at present.

Normally, planning permission is not required for this type of conversion. However, a full set of Architect’s plans would be necessary along with the designs of a Structural Engineer and subsequent calculations to verify designs. This will be necessary to justify all current building regulations.

However, if your property is in a conservation area, there may be restrictions on the design and shape of the Velux windows to be installed.

“Dormer” loft conversions

Dormer’s have been referred to in many different ways, Dormer windows, Dormer extensions, roof extensions, attic extensions.

A brief description of a Dormer would be an extension of an existing roof shape. Consider a most typical terraced property/town house where the roof would start at the gutters at the front of the house rising to the Apex, the ridge in the centre of the house, then falling again down to the gutters at the back of the house. This most typical roof shape does not usually produce a substantial habitable room, unless the house is unusually large. So with this type of roof structure, it would be advisable to extend the roof and create a Dormer (usually to the rear of the property.)

The size, shape and general design of this or any other Dormer can vary greatly. This type of conversion may also not require planning permission. Householders have what is known as a permitted development allowance. This permitted development allowance is usually measured in cubic metres. The amount allowed (cubic metres) varies from property to property. Generally, the allowance would be between 50 and 70 cubic metres or 20% of the overall volume of the property.

Please note, there are further guidelines whilst trying to identify if your project would be allowed under permitted development rights. These are;

No part of the new structure must rise any higher than the existing highest part of the roof at present (usually the ridge line.) Looking down on a plan, no part of this new structure must exceed the current floor plan boundary. The property must not be in a conservation area.

Again, as per roof line conversions, even if planning permission is not required, Architect’s plans along with Structural Engineers calculations will be necessary to conform and to comply with the current building regulations.

Renovations / Alterations

Andrew Christopher builders provide a comprehensive range of renovation services.

A renovation is the perfect way to get that new home excitement without the stress and cost of moving.

Landscaping & Paving Services

Andrew Christopher Builders offer a variety of hard landscaping services including:

  • Groundworks.
  • Block Paving.
  • Patios.
  • Brick Walls.
  • Stone Walls.
  • Paths & Paving.

Paths & Paving

You have probably asked yourself  “what advantages will brick paving give me over concrete or Tarmac?”

When you consider the cost of maintenance and replacement of other types of pavement over the long term, brick paving is more economical.

  • Aesthetics – There is nothing that will add such a visual impact to any area of your home or business as brick pavers or walls. They can compliment the color and texture of a building, and add to the value of any property.
  • Durability – The high density and psi of the products, added to a low absorption rate means both pavers and retaining wall products resist salt scaling, common on most concretes, and provide the characteristics needed to sustain heavy loading.
  • Freeze/Thaw resistance – The joints between the pavers or wall units flex, eliminating cracking damage caused by frost.
  • Access – Pavers can be removed and re-installed very easily to allow for such things as below ground utility access.
  • Skid-resistant – The textured surface of pavers offers excellent traction for pedestrian and automotive traffic areas as well as pool applications.
  • Maintenance – When installation is carried out correctly, maintenance should be minimal and very easy. ‘Sealing’ enhances the original color of pavers and reduces oil and dirt penetration. ‘Cleaning’ can remove oil spots, ground-in dirt, rust, paint, tar, bitumen, rubber or gum which accumulate over time, without damaging the brick.