Professional, always on time and reliable. Piotr and his team completed our house refurbishment nearly 2 years ago and we will be having him back soon for another smaller project. I highly recommend Piotr for any project you may have.
Clear costs, no surprises
We expand your home across two levels, creating a double storey extension that redefines your living space with careful precision. This process gives you more room where you need it most.
Done right, no shortcuts.
A double storey extension works perfectly for families feeling cramped in their current home and wishing to avoid relocation. It provides valuable additional space across both floors, allowing for a spacious kitchen or living area on the ground floor and an extra bedroom or bathroom overhead. Our team constructs each double storey extension to harmonize with the original property, ensuring the brickwork, roofline, and window detailing seamlessly match.
For property investors, a double storey extension serves as one of the most cost-effective methods to boost rental income and improve property value over the long term. Expanding across two levels increases space without the need for a disruptive move, presenting a viable strategic choice. With over 20 years of expertise, we guarantee that every project reflects the standards expected by discerning tenants and future buyers.
If you want to establish a dedicated home office, a guest suite, or simply a more expansive living space, a double storey extension fits the bill. This approach transforms your home on a larger scale, avoiding the compromises that often accompany single-level additions. We oversee each stage, from the groundwork to the finishing touches, managing everything under one roof to keep things straightforward.
The journey of a double storey extension starts with meticulous groundwork, involving foundation preparation and structural elements designed to support two levels of living space. We handle all structural aspects in-house, from reliable foundations to bricklaying and roof construction. Each double storey extension we construct is aligned with the existing property in terms of style, ensuring continuity throughout. With two decades in complex residential constructions, our standards remain exceptionally high at every stage.
After the structure is erect, a double storey extension calls for precise integration of services and interior elements to achieve a polished final product. We manage all plumbing, electrical work, heating, and ventilation, alongside interior finishes, providing a single-source experience. Whether expanding your kitchen or adding a new bedroom, each area is finished to a consistent quality. Relying on one contractor for a double storey extension reduces liability gaps and maintains high standards throughout the project.
A double storey extension significantly boosts usable square footage on both floors, offering far more advantages than a single-level addition for a comparable investment. By expanding both upwards and outwards at once, the functionality of your home is enhanced remarkably.
An expertly executed double storey extension substantially elevates a property’s market value. This improvement proves to be financially prudent for homeowners, attracting both valuers and potential buyers, thanks to the additional bedrooms, bathrooms, and living areas.
Each double storey extension crafted by our team is perfectly matched to the existing residence in terms of brickwork, roofing, and window details, creating a seamless addition that feels naturally integrated. The aesthetic finish is carefully executed to endure.
Families in need of more space can achieve their goals without the hassle and expense of relocating. Your home can evolve alongside your family's needs, all at your pace.
We manage each phase of the project internally, from groundwork through structural work to final touches. This approach minimizes fragmentation often seen with multiple contractors, ensuring quality remains consistent and supervision seamless.
Whether you require a large kitchen with an open-plan layout on the ground floor or an additional bedroom suite above, your needs dictate the design. The result is a home that operates effectively with purpose at each level.
Heavy plant machinery needs a clear run from the driveway straight into the rear garden. Moving wheelbarrows loaded with wet concrete or sub-base through a narrow alley with garden hoses and children's bikes creates dangerous hazards and slows the entire schedule down. We always ask you to clear timber sheds, potted shrubs, and garden gates before our digger arrives. For any double storey extension Thornbury properties require adequate perimeter space so that workers can maneuver scaffolding poles safely around drainage gullies.
Living on site during structural work requires clear boundaries between active work zones and family rooms. When we knock through into your existing kitchen, we seal doors with heavy polythene screens to keep brick dust away from your kettle and breakfast table. Temporary power boards keep your fridge running, even when main fuse boxes need isolation for running new cables upstairs. You will need to plan for mornings when main shut-off valves must close for connecting new copper pipework, so keeping buckets of tap water ready prevents awkward surprises during early demolition stages.
We meet with you to grasp the complete scope of your project, evaluate site specifics, and deliver a precise initial estimate tailored to your needs.
Our experts create customized architectural plans for your double storey extension, guiding you through planning permissions and building regulations as part of our service.
After securing approvals, we finalize the contract with a clear cost breakdown and organized timeline, ensuring every phase of the double storey extension is well-defined prior to starting work.
Our team executes all groundwork, foundation preparation, brickwork, and structural framing to ensure the new extension merges flawlessly with the current property in both form and function.
We coordinate all services such as plumbing, electrical work, heating, and air flow alongside complete interior finishing, culminating in a thorough inspection and formal handover of your completed property.
Adding extra bedrooms and bathrooms upstairs quickly overburdens an aging combination boiler. When two showers run simultaneously, water pressure drops to a trickle if your main pipework lacks sufficient volume. We evaluate your incoming cold mains stopcock before digging trenches, because upgrading to an unvented cylinder avoids lukewarm taps when multiple family members get ready at the same time.
Modern building regulations require strict thermal calculations for both storeys. Fitting a double storey extension in Thornbury onto an older brick house means balancing heat loss from tall gable windows against smaller existing bedroom radiators. Underfloor heating loops embedded in the new ground slab distribute warmth evenly, while standard radiators handle upper floors without stealing precious wall space from your wardrobes.
Persistent autumn rain turns open foundation trenches into heavy clay slurry very fast. We pump standing puddle water out before pouring structural trench concrete, because waterlogged subsoil weakens the setting strength. Mud boards protect your lawn from dumper tyres.
Opening up an existing roof to tie in rafters leaves your home vulnerable to sudden downpours. We tie heavy industrial tarpaulins across open timber trusses before packing up our tools each afternoon. When completing a double storey extension in Thornbury, battening down waterproof membrane guards upper ceilings against driving rain.
Freezing conditions stop bricklaying immediately because freezing water crystals destroy wet mortar bonding. We cover newly pointed blockwork with thermal insulating quilts at the end of each shift, preventing frost damage along external cavity skins. Dry winter conditions actually assist timber framing.
Creating a double storey extension is a significant commitment for homeowners, deserving a thoughtful approach. We treat each double storey extension as a coordinated project, prioritizing structural strength, material selection, and finishing touches equally from the ground up. With two decades of experience in complex residential builds, we know how to expand your home across two levels without sacrificing its character, ensuring that the result feels like a natural addition rather than an afterthought.
From our first discussions to final completion, your double storey extension unfolds entirely under our management. We supervise all trades, from groundwork and construction to plumbing, electrics, and finishing, ensuring each element is seamlessly executed. This scale of project requires precise timelines and fluid communication, and that’s exactly how we operate. You have one contact person, allowing for clarity and coherence in every decision.
In Thornbury, we provide dedicated services, including a comprehensive consultation for your needs. We're situated just 10 miles from Henbury and are ready to assist you with a free estimate.
approx. 10 milesDistance from our base · Henbury
Call us+44 7723 542170Email usinfo@muchaconstruction.co.ukWe serve your areaThornbury and the surroundings
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Professional, always on time and reliable. Piotr and his team completed our house refurbishment nearly 2 years ago and we will be having him back soon for another smaller project. I highly recommend Piotr for any project you may have.
The work was done well, efficiently and cleanly.
I highly recommend this construction and renovation company. The team was professional, reliable, and completed all work to a very high standard. They paid great attention to detail, kept everything clean and organised, and finished the project on time. Communication throughout the process was excellent, and they were always helpful and responsive to any questions or changes.
The quality of workmanship exceeded my expectations, and I am extremely happy with the final result. I would definitely use their services again and recommend them to anyone looking for trustworthy and skilled builders.
Our Services
One team, from groundworks to final finish. New builds, extensions, loft conversions and full renovations.
New homes built to the engineer's calculations and signed off at every stage.
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House and kitchen extensions that add space, light and lasting value.
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Dormer, hip-to-gable and mansard conversions that turn lofts into rooms.
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Full renovations and modernisations, from HMOs to tired homes made new.
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RSJ installation, core drilling and crack stitching, built to proper standards.
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Kitchens, bathrooms and wet rooms finished with care and clean detail.
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Plumbing, electrics, ventilation and heating handled by one coordinated team.
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Ongoing building maintenance for landlords, investors and managed properties.
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Each project by our Construction Company leaves clients with refined spaces, enduring quality, and elevated comfort.
Mucha Construction Ltd delivers Construction Company services within a precise 20-mile radius of Bristol.
It depends on your existing brickwork and local street appearance, because matching weathered clay bricks requires careful sample sourcing while smooth render offers an easier blend.
The most frequent error is ignoring buried manholes and sewer lines, which must be rerouted or bridged with reinforced lintels before pouring foundation concrete.
Standard contracts finish at smooth screed or bare floorboards, because homeowners usually choose and purchase their own decorative carpets, hardwood, or porcelain tiles separately.
Yes, clearing patios and moving sheds gives our excavators clear access to dig trenches without breaking fences or damaging personal outdoor belongings.
