Harris Building Contractors are a Stevenage based building contractors providing extensions, alterations and renovations to properties throughout Hertfordshire, Cambridgeshire, Bedfordshire and North London. We have done previous work in Cambridge, Royston, Biggleswade, Hitchin, Luton, North London and more.
We have a large portfolio of work in both the private/residential and commercial sectors. We cater for projects of all sizes and give the same attention to everything we do, whether you need a wall taken down or a two-storey extension added to your property.
Harris Building Contractors are a family run company with four generations of builders, consisting of fully trained, time served, qualified and experienced professionals. The company mostly specialises in extensions, alterations and renovations. Our reputation is very important to us and we display our testimonials with pride.
As standard our service includes free no-obligation quotations, along with details of our guarantees and warranties that we offer on all new work undertaken. Our guarantees give you the confidence that should anything we do not meet your expectation, you can expect a fast response and a very thorough service to put things right.
We are fully qualified and accredited, being approved members of the exclusive FMB (Federation of Master Builders). We meet all required regulations and are able to provide both modern and traditional building methods as required.
At Harris Building Contractors we provide a full range of building services, but specialise in three key areas:
Extensions - Extensions are a great way of adding much needed space to a property and often create a more affordable solution than moving to a larger property. There are many regulations when it comes to building extensions, so our knowledge and experience can help you find a suitable solution to meet the requirements. Extensions can be built to seamlessly blend in with the original property or to contrast them as required. Some of the main extension building services we offer include:
Design and planning, Single and multiple storey extensions, Contemporary and traditional extensions, Loft and garage conversions, Conservatories, Glass extensions.
Alterations - Building alterations can improve your space and make it more practical. They need to be made safely and meet all the regulations. At Harris Building Contractors we are able to make alterations where special measures need to be taken to avoid damage to existing property and interiors. We can also work in a suitably safe and clean process that will avoid any risk of harm to young children or pets that may be living in or using the property. Some of our most common alterations include:
Removing and building interior walls, Adding windows and skylights, Chimney removal, Ramps and disability access works.
Renovations - Renovations can give a property a new lease of life as well as adding value to it. We can make sure there are no extra costs by doing a thorough inspection first.  At Harris Building Contractors, we can provide a range of solutions to suit your budget and timescale.  Some of our most common renovation works include:
New bathrooms, wet rooms and kitchens, Interior decoration works, Wooden and tiled flooring, Plumbing and electrical works, Plaster boarding and skimming, Restoring damaged brickwork and masonry, Roof repairs and re-roofing.

Trades offered

Builder general
General extension
Loft conversions
Bathroom fitter
Brick work
Carpenter and Joiner
General carpentry
House Builder
Custom/Self Build
Kitchen installation