Specialist Extension Builders
in Manchester

Transform your home with expert extension builders who deliver quality projects across Manchester. We've been turning cramped spaces into dream homes for over a decade.

    Why Manchester homeowners and businesses choose us

    Why Us?

    With over 30 years of combined experience across the UK, Germany, and Iran, Stars House Ltd brings global expertise to every project. Our team has delivered more than 500 successful builds and renovations, earning a reputation for quality craftsmanship, reliability, and customer-first service. 

    We take pride in delivering work that stands the test of time, with a decade-long commitment to excellence in everything we do.

    See our case studies

    Where to Find Expert Extension Builders in Manchester

    Planning a home extension can feel overwhelming.

    You're juggling multiple decisions at once, finding reliable builders who won't disappear halfway through your project, getting accurate quotes that don't spiral out of control. Navigating planning permissions and building regulations. Managing disruption to your daily life whilst work is underway.

    Perhaps you've heard horror stories from friends about cowboys who left jobs unfinished. Or you're worried about whether your extension will actually add value to your property.

    You need more space, but you also need peace of mind. You want builders who show up on time, communicate clearly, and deliver exactly what they promise.

    We specialise in residential extensions across Manchester and the North West, delivering projects that enhance both your lifestyle and property value.

    Our extension building service takes the stress out of expanding your home. Here's what you get when you work with us:

    • Complete project management from initial design through to final inspection. We handle planning permissions, building regulation approvals, and coordinate all trades so you don't have to.
    • Transparent pricing with detailed quotes that break down every cost. You'll know exactly what you're paying for before we start, with no hidden fees appearing later.
    • Quality craftsmanship using premium materials. We don't cut corners on the bits you can't see because we know they matter just as much as the finish.
    • Minimal disruption to your daily routine. We work efficiently, keep the site clean, and respect that this is your home we're working in.
    • Regular communication throughout your project. You'll always know what's happening, what's next, and when we'll finish.
    Get Your Free Extension Quote

    What Makes Us Different From Other House Extension Builders in Manchester?

    We've built our reputation on doing things properly. Over the past decade, we've completed hundreds of residential projects across the North West. Most of our work comes from referrals and recommendations, which only happen when you consistently deliver quality.

    We don't just build extensions. We create spaces that work for how you actually live. That means listening to your needs, understanding your budget, and designing solutions that make sense for your property.

    Our team holds all necessary certifications and insurance. We're based locally at 23 Heywood Street in Swinton, which means we're always accessible when you need us.

    We also offer 3D CAD design services, so you can visualise your extension before we break ground. This ensures you're completely happy with the design and helps avoid costly changes later.

    Get your free consultation today

    The StarsHouse Builders Process:
    Expert Extension Builders in Manchester

    Working with us is straightforward. Here's our proven process:

    • Step 1Free Consultation

      We visit your property to discuss your ideas, assess the space, and understand what you want to achieve. We'll advise on what's possible, highlight any potential challenges, and answer your questions.

    • Step 2Design and Planning

      Our team creates detailed plans and 3D visualisations of your extension. We handle all planning permission applications and building regulation submissions, keeping you informed throughout.

    • Step 3Transparent Quote

      You'll receive a comprehensive quote that breaks down materials, labour, and timescales. We explain everything clearly so you know exactly what you're getting.

    • Step 4Construction

      Once you approve the quote, we schedule your project and get started. Our team manages everything on-site, coordinating all trades and maintaining high standards throughout.

    • Step 5Final Inspection and Handover

      We complete thorough checks to ensure everything meets building regulations and our quality standards. You'll receive all necessary certifications and documentation.

    What Our Clients Say About Us

    Our clients across Manchester trust us to deliver extensions that exceed expectations.

    Fantastic service from start to finish! The team completed our house extension to a very high standard and kept everything on schedule. Professional, reliable, and a pleasure to work with. Highly recommend.

    John Young

    I needed an extension to do. Really appreciate their work and what they've done for me. It's always nice to see their really friendly staff.

    Payman Hosseini

    I can’t recommend them enough. Courteous and thoroughly professional, and they know what they are doing. After having a very scary experience with a cowboy plumber who caused a massive leak and messed up my ceiling, I decided to hire someone from Checkatrade to install my new shower, with a lot of doubts, as I was apprehensive. I was amazed by the service provided from start to finish by Omid and his excellent team. Omid came personally to look at the job, instead of asking for the pictures as most tradespeople do nowadays. He also helped in designing and getting the parts, and completed the job in the time committed with excellent finishing. Cleanedup after themselves and even cleared my rubbish as a courtesy. Couldn’t ask for more.

    Beli Bhai

    How Much Should I Budget for a House Extension?

    Extension costs vary depending on size, complexity, and specifications. However, we believe in transparent pricing from the start.

    Single-storey extensions typically start from £30,000, whilst double-storey extensions generally begin at £50,000. These are guideline figures; your actual cost depends on your specific requirements and material choices.

    We provide detailed, itemised quotes so you understand exactly where your money goes. There are no hidden fees, and we won't spring surprise costs on you halfway through the project.

    Our guarantee: We complete projects on time, within budget, and to the highest standards. If issues arise, we address them immediately and keep you informed.

    FAQs

    1How much does a 40m2 extension cost in the UK?
    A 40m2 extension typically costs between £40,000 and £80,000, depending on specifications and finishes. The price includes structural work, roofing, windows, doors, electrics, plumbing, and internal finishes. High-end materials and complex designs will push costs towards the upper end. We provide detailed quotes that break down all costs, so you know exactly what you're paying for before we start work.
    2How much does an extension cost in Manchester?
    Extension costs in Manchester range from £1,000 to £2,500 per square metre, depending on build quality and specifications. A typical single-storey kitchen extension of 20m2 costs between £25,000 and £45,000. Double-storey extensions cost more due to additional structural requirements and roofing work. Location within Manchester, access to your property, and current market rates for materials also affect pricing. We provide accurate quotes based on your specific project.
    3Is it cheaper to extend or move house?
    Extending is usually cheaper than moving, especially in Manchester's current property market. Moving costs include estate agent fees (1-3%), solicitor fees (£1,000-£3,000), stamp duty, removal costs, and potentially higher mortgage rates. A well-designed extension adds value to your current property whilst creating the space you need. You also avoid the stress and disruption of relocating. We help you make this decision by showing you what's achievable within your budget.
    4How long do extensions last?
    A properly built extension lasts as long as your original house; typically 60+ years or more with basic maintenance. The key is quality construction, appropriate materials, and compliance with building regulations. We use premium materials and proven construction methods that ensure your extension remains structurally sound and weather-tight for decades. All our work comes with relevant guarantees and meets current building standards, giving you long-term peace of mind.

    Ready to create the extra space your family needs?

    Contact us today for a free, no-obligation consultation. We'll visit your property, discuss your ideas, and provide honest advice on the best way forward.

    Call us on 0161 327 1627 | 07949393932

    Visit our office at 23 Heywood Street, Swinton, Manchester M27 0WD

    We're here to answer your questions and help you take the first step towards your dream extension.