Digging the foundations can be awkward when building an extension. Getting the digger/excavator onsite very often means using a small and under-powered machine or resort to hand digging excavation. For London, the best excavators are the mini-diggers around 1.5 tonne and not necessary 360 degree unless you are a very experienced and careful ground worker.

Excavators can be used for : Site clearance,Foundations,Levelling,Trenches, Driveways,Demolition, Drainage, Ponds, pools, patios, Hedge and tree stump removal


gay-friendly-electricians-building-companyProfessional, friendly and always willing to help with a clear a code of conduct. We cover all trades to include refurbishments, conversions, extensions, kitchen and bathroom fitting as well as commercial projects.

We work often for the gay and LGBT community and we are proud of that.

Making a new window door opening

Creating or making a new window or door opening

In most cases, Building Regulation Approval is required to insert or make a new opening for a window or door. This is because making a new opening will affect the structural integrity of the building, flat, house. A structural engineer is the best person to advise you.
new opening brickwall
Very rarely, Planning permission, will be required to make a new window opening or door opening.If you live in Conservation Area or the building is a listed building, most certainly will require Planning permission. However, its best to check with your Local Council Building Department, if your new window opening or door opening invades the privacy of your neighbours, frosted glass or obscured glass must be used and the window or door must not be used or to be open.
round window opening
A lintel or beam is normally used to bridge the new opening. If the external wall is a brick wall, then a cavity or box lintels should be used.In theory, you are not supposed to see the lintel itself.
box metal lintel
Concrete lintels should be used only when the walls will be rendered or plastered.
patio door opening
The builders or building company must be very experienced, the structural integrity of the property can be disrupted by and modification of the fabric of the house or flat.

Example of a kitchen opening for a window, stage One, the lintel is in place and breaking through the wall can begin:
kitchen new window opening

New window is installed, plastering and rendering

windows opening kitchen

Kitchen installation and fitting after the window opening is finished
kitchen installation

Building a Garden Office

Building a Garden Office is an option if you don’t have the space to build a house extension or you can’t convert the garage. The outdoor buildings can be used for storage, gyms, garden offices, dens, sheds, working studios, workshops, music rooms and any other uses that requires a practical, elegant, dry, warm room.
garden office

The design of building will be done to suit your home and garden. Flat roof or pitched roof, brick walls or rendering finish,the garden room will be built to complement the garden and existing property. Electricity, phone lines, Internet cable, heating, insulated roofs, floors and walls, double glazing, will ensure that the Garden Office will be a pleasant place to work.

garden office rendering

If you want to include a WC toilet, basins and showers,it can be done, depending on the circumstances and Planning Permission laws in your London area. The plumbers and electricians will advise you. If you have enough space, the Garden Office can be partitioned.

garden office brickwall

Garden Offices can be build under the permitted development law.

Outbuildings and garages to be single storey with maximum eaves height of 2.5 metres and maximum overall height of four metres with a dual pitched roof or three metres for any other roof.
Maximum height of 2.5 metres in the case of a building, enclosure or container within two metres of a boundary of the curtilage of the dwellinghouse.
No more than half the area of land around the “original house”* would be covered by additions or other buildings.

Contact London Builders for a free quote.

Radlett ,Elstree & Borehamwood

Robuild Builders cover Borehamwood, Elstree, Radlett, Shenley, Aldenham and Letchmore Heath. House Extensions,Home Extensions, Kitchen extensions,Garage Conversions, Loft Conversions, Landscaping,gardening and other building projects.

radlett builders elstree

Our builders have experience of working on Listed Buildings and Conservation areas, and we can deal with issues regarding original materials and planning permissions.
If you need a building company contact us for a free quote for your building project, house extension, Loft & Garage Conversion and refurbishments.

We also offer building , plumbing, electrical, painting and decorating services in your area.

Contact Robuild London Builders for a free Quote.

Materials Costs Calculator

Building Materials Calculator

A very useful tool for builders, painters and decorators, tilers, landscapers and other trades. You can calculate how many bricks, blocks, sand, cement, tiles, paint,flooring,decking, floor boards, concrete and other materials you need for your building or refurbishment project. You can measure the area, length,volume, weight for any materials you might need to know before you buy. Then you can easily calculate how much the building materials will cost for you project. Don’t forget to add the V.A.T, as most building merchants don’t display the price with the V.A.T included.

The VAT can be calculated using a simple formula.

Example at 20% – working out how much standard rate VAT to charge
Item Amount
Price excluding VAT £100
VAT rate 20%
VAT (20% x £100) £20
Price including VAT £120

For a rate of 20 per cent, you can also work out the VAT-inclusive figure by multiplying by 1.2.

If you have the price EX Vat then you multiply by the VAT rate and divide by 100.

e.g. if the VAT rate is 17.5% then the VAT on £200 would be:

£200 *17.5 / 100 = £35.00

Building Regulations

Building Regulations

To view information on the Building Regulations for your area please follow the links below:







Removing walls

Removing walls

Open plan layout is very popular in London homes and flats. Solid though they look, walls don’t have to be forever; you can knock two small rooms into one big one. It is hard work, messy, noisy, though not for amateur builders.

But before reaching for the demolition hammer, the homeowner or the builders, must check if the walls are load bearing walls. Which walls are safe to knock down without Building Regulation and without major complications ? Not the outer walls which carry most of the load of roof and upper floors; they’re a job for expert builders.
which walls load bearing walls

Not the party wall between semis or terrace houses they mustn’t be touched at all. Internal partition walls which hold up nothing but merely divide the internal space can be demolished with no more additional work than making good the plaster, painting and decorating and sometimes plumbing and electrical work if a switch, socket or radiator needs to be relocated. But there are some internal walls which carry part of the weight of roof or upper floors.

removing load bearing wallsThese can be knocked down but only after you have, in effect, built a bridge to carry the load. You can get an idea of
which is which by looking in the loft. If roof timbers rest on a wall then that’s load-bearing. Walls under or near water-tanks are probably load-bearing. And where joists are divided and join just above a wall, that’s load-bearing

A Structural Engineer is needed, Metal Beams,RSJs, lintels, Pad Stones and Building Regulation approval before the load bearing walls are demolished.

Any major building job like knocking down a wall – any wall-must be approved first by the Building Inspector (in inner London) or the Building Control Officer. Speak to your local council enclosing drawings of what you propose
to do. These need not be perfect, architect-style, but must be clear and give measurements. The Building Control then will ask for Structural Calculations in writing if they are happy with the purposed demolition works.

Removing the external load bearing wall for a kitchen extension
Removing the external load bearing wall for a kitchen extension