Home Extensions

Helping to build your dream home

Running out of the room but don’t want to move? Then improve your home with an extension. With house prices rising every year, more and more people are turning to this option of bringing a fresh look to their home. Builders Alliance can and will help you with every step along the way. Having an extension on your home can be a daunting task, but Builders Alliance takes pride in our work and work alongside you as the customer and the architect to design the desired extension for your home. Our Lancashire based builders have been involved in many different projects over the length of their careers and take pride in their work large or small. We have many years’ experience constructing house extensions. We can build both single story and two-story extensions to any house. 

Home Extensions in Lancashire

Different Variations of House Extensions

Double Storey Extensions: Double storey house extensions are attractive ways to add value to your current home and also use up the available space to its maximum capacity. That being said the actual build of the house extension is a bit more complicated to the smaller house extensions, it may require changes to the existing roof of your home, deeper footings and a cavity wall to be built.

Single Storey Extensions: We offer smaller house extensions such as bathroom extensions, garage extensions, Kitchen extensions and any other house extension, basically a single-storey extension in any home. Builders Alliance has excellent knowledge and experience when it comes to House extensions and always meet our customers’ demands.

Enclosed Porch Extension: Adding an enclosed Porch can bring real sophistication and class to your home as well as buffer up the existing elements, especially if you would like to make a small hallway feel more spacious or perhaps the front door opens straight into your living room so a Porch extension can be a well-valued extra.

Roof dormer: A great way to maximise space is to add a dormer to your rooftop, so if you’re lucky enough to have inherited a loft conversion from the previous house owner and are dissatisfied with the amount of full-height space, a box dormer can transform the feel of your loft. This natural solution can be especially useful in providing the headroom needed to add stairs into an attic.

Connect your home to your outhouse/Garage: Connecting your home to an outbuilding, for example, a Garage conversion, can give your home the added extra feel between your garage/outbuilding and your home. This is an excellent way of using the existing space you already have.

Conservatory Extension: A conservatory is a great way to add additional living space in your home, as well as introduce some more natural light within your home. This kind of house extension usually doesn’t require planning permission subject to size and design. It is advisable that if you want to use the space all year round heating and blinds will come in handy.

Bay Windows: Bay windows can make your room seem more significant and don’t necessarily require foundations some of the time. Windows with three sides will bring in extra natural light, creating a more spacious feel to your home.

If you would like some information on how we can assist you with your home extension then send us a message at the bottom of the page or feel free to give us a call to book a no-obligation quote.

Benefits of Getting a house extension

Adding Value to Your Home

No matter what is it you may choose to add to your home, it will most surely increase the value of your property. In some cases, at Builders Alliance we have been introduced to numerous clients who have chosen to attach an extension to their home because they want to sell it. You may think this is odd when in a matter of fact they're being clever with their capital. Adding an extension can create extra room within the property, and in turn, drive the value up.

Bespoke the design to tailor to you and the family

When adding an extension, many people decide to get one for a definite purpose. There may not be sufficient room for their family, or perhaps they want to add an office to home or extend onto one of the current rooms. The best aspect of this is you can tell us exactly what you want us to build, tailored made to how you want it, so you know you’re making the right home improvement decision for you and your family.

Saving You Time & Money

Rather than putting a deposit down and saving for your dream home, why not build your dream home in the house you’re previously in? Whether a conversion/extension is something for you, it can create a whole lot of difference to the image and way of living. Use the money and time you were going to spend on spicing up your new extension, declaring it the home you want to live in. Whilst saving you a load of time, to get the appropriate extension you and your family truly desire.

Easier Choice to Moving House

We've also found why people choose to add an extension to their property is that they decide its time for a change to their home. In some cases, if you’ve lived in your residence for a while, you may choose unfortunately to get tired of the interior, and you may decide that something must change. Builders Alliance in most situations advise our clients on extensions before considering moving, or at least to think about it. It's, of course, a lot less expensive, but also it’s also significantly less pressure for you and your family.

You do Not Always Require Planning Permission

For those who aren't aware, getting an extension is commonly considered to be permitted developments, which suggests you do not need to get planning permission. One of the main obstacles which prevent people from going through with the project is the idea of getting planning permission; hopefully, this is a positive for you. Although, you will have to see the rules and regulations from your town council. If your extension does not exceed any of these, then you will be good to go.

Other Services our clients consider when having an house extension


The bathroom is the room in the house where you can relax after a long day, so why not let us fit a bathroom you actually love. Our experience over the years is the customers know exactly what they what, but even if you don’t we have an extensive range to choose from, via our suppliers or instead, you could buy the suite yourself and have builders Alliance fit it, the choice is up to you.


We are very experienced when it comes to fitting new kitchens for our clients. As Blackburn builders, we have installed a range of different kitchens from luxury to modern and we deal with the whole process from start to finish. There are many different options to choose from, and we can even just give your kitchen a quick makeover, why not take a look at what’s on offer on our Kitchens page.

This is a popular option for homeowners at the moment to spruce up their exterior, with many people taking on the option. Our renderers have an impressive work ethic and have k-rendered for many different clients up and down the country. Take a quick look at our portfolio and feel free to give us a call. 


A leak in the roof can cause some serious damage to your home if not dealt with straight away. As Lancashire builders we can help solve any problem, our roofing team can help fit a new dormer, skylight or even re-tile your roof if needed. A new roof can make a big difference to your homes initial look. Give Builders Alliance a call today to speak to one of our advisors and book an appointment




If a new look to your business is what your after or your home is due an upgrade then our Lancashire builders can help. With many successful projects under our belt, we can help create the style you want. We have created bespoke modern designs for our clients and would very much like to add yours to our portfolio. Talk to us today and see how we can help make your vision a reality.