Single storey brick extension with large black sliding glass doors and paved patio

Clear costs, no surprises

Double storey extension in Corsham

Transforming your home across two levels, a double storey extension in Corsham creates additional living space with lasting and deliberate craftsmanship.

  • Complete Project Coordination
  • Structural and Finishing Expertise
  • Single Point of Accountability

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Done right, no shortcuts.

Who It's For

Who Benefits from a Double Storey Extension?

Expanding Families

For families in Corsham looking to grow, a double storey extension provides the perfect answer when you want to stay. It offers extra room on both levels at once-perhaps a roomy kitchen on the ground floor and an additional bedroom above. We design each double storey extension to match the existing property, aligning brickwork and rooflines with precision.

Property Investors

For landlords and property investors in the area, a double storey extension is a smart method to enhance rental income and long-term value. Creating space on two levels increases usable square footage while avoiding the hassle of relocation, making it a solid decision. Our team brings extensive experience to ensure your project meets the expectations of renters and future buyers.

Homeowners Seeking Space

A double storey extension appeals to homeowners aiming for more space-ideal for a home office or guest suite, without compromising on layout. Rather than reverting to smaller additions, expanding your property significantly enhances its scale. We oversee all phases from groundwork to final touches, ensuring everything runs smoothly under one roof, bringing clarity without hassle.

Double Storey Extension with modern windows and paved patio on brick home

Preparing Your Grounds Before Construction Begins

Single storey extension with white sliding patio doors and brick facade

Clearing Access For Diggers

Heavy plant machinery needs unhindered passage. Garden walls get dismantled, side gates come off their hinges, and tree branches need pruning back right away. If you plan a double storey extension in Corsham on a narrow plot, every spare foot of access matters for hauling heavy trench spoil out to the skips. Timber boards go over your turf. We walk the route with you before earthmovers arrive, spotting shallow inspection chambers or garden taps that could crack under wheel weight.

Protecting The Existing House

Dust travels through keyholes. Zip walls seal your hallway from the new opening, stopping fine masonry grit from coating your living room sofa or drifting into your kitchen cupboards. We isolate internal radiators before breaching exterior walls, capping pipework so central heating functions elsewhere during wet autumn mornings. A two-storey addition means knocking into the upstairs layout, so we box off carpets and mask bedroom doorways with heavy gauge polythene sheeting taped securely to skirting boards.

Benefits of Expanding Over Two Levels Mucha Construction Ltd

  • Doubled Living Area

    Adding a double storey extension brings significant square footage across both levels, resulting in far greater benefits compared to a single-level addition for a similar cost. Expanding upward and outward all in one project redefines everyday living.

  • Strong Return on Investment

    A well-planned double storey extension boosts the market value of your property substantially, making it one of the most financially informed moves a homeowner can take. The added bedrooms and bathrooms attract both future buyers and estate valuers alike.

  • Architectural Harmony

    Every double storey extension crafted by us is meticulously aligned with the existing home, ensuring it feels inherently part of the original design. The end result is durable and aesthetically pleasing.

  • Avoiding Relocation

    For growing families or those needing extra room, gaining everything required without moving offers convenience. The home adapts to suit the needs of its occupants, on their timeline.

  • Single Contractor Management

    We handle every trade and stage of your project entirely, from groundwork and structural work to finishing touches. This approach minimizes the downsides of juggling multiple contractors and maintains a high standard from start to finish.

  • Customizable Layout

    Whether your focus is a larger kitchen area or an additional bedroom with an en-suite, the design conforms to your needs. The result is a home that operates efficiently and beautifully.

Bright living room with a wall-mounted air conditioning unit and floor-to-ceiling garden windows
In Practice

Adapting Your Heating And Utilities Upstairs

Upgrading Boiler Pressure

An extra bedroom and bathroom upstairs often reveals hidden limitations in existing plumbing. Gravity-fed tanks in your loft might fail to supply sufficient pressure to newly added showers, causing trickling outlets during peak family mornings. When executing a double storey extension in Corsham, pairing the new pipe runs with a modern unvented cylinder avoids pressure drops across both levels. We assess your boiler output early. Copper mains supply lines frequently require upsizing directly at the incoming stopcock.

Managing Consumer Unit Capacity

Older electrical boards cannot always take extra circuits. Adding upper-floor lighting, multiple double sockets, and dedicated circuits for electric underfloor heating quickly fills the remaining spare ways in your fusebox. Electricians test the incoming supply capacity right inside your hallway cupboard before cutting chases into new blockwork. Replacing an outdated board avoids nuisance tripping later on. We route cables through floor joists away from heating pipes, leaving pull cords in cavities for future network wiring before wet plaster seals the ceilings.

Double storey brick house extension with black-framed sliding doors and patio

Steps to Your Double Storey Extension

  1. Initial Consultation and Cost Estimate

    We sit down with you to assess the full scope of your project, evaluate site conditions, and offer a clear initial estimate tailored to your requirements.

  2. Design and Planning Approval

    Our staff produce thorough architectural plans specific to your double storey extension and manage the submission of planning permissions and building regulations on your behalf.

  3. Contract Finalization and Project Timeline

    Once approvals are complete, we outline the contract with a transparent cost breakdown and a detailed project schedule, ensuring every aspect of your double storey extension is defined before the work begins.

  4. Construction and Structural Work

    We manage all groundwork, foundation preparation, brickwork, structural framing, and roofing, making sure the new extension aligns perfectly with the existing home both structurally and visually.

  5. Installations, Finishes, and Final Handover

    We coordinate all building services, including plumbing, electrics, heating, and ventilation, followed by complete interior finishing. After a thorough final inspection, we hand over the finished property.

At Completion

Tangible Benefits Your Property Gains

Gained Space, Increased Value

A double storey extension represents a key approach to boosting your home's usable area without the stress and expense of relocating. By adding room on both levels, you achieve a larger living or kitchen area along with an additional bedroom or bathroom upstairs. The significant size increase also directly affects property value, securing a wise long-term investment.

Architectural Integration Done Right

Each double storey extension we provide is designed to fit seamlessly with your existing structure in terms of brickwork, roofline, and window details, making it feel like a natural part of the home. This kind of harmony is essential for attracting buyers and fostering a positive impression, and a well-integrated extension enhances not just property value but also the character of your residence in ways that poorly executed additions fail to achieve.

Contemporary single storey extension on brick house with large sliding glass doors and patio
Our Experience

Seasonal Weather Impact On Two Levels

Single storey brick extension with large black sliding glass doors and paved patio

Handling Ground In Winter

Cold months bring saturated soil. Groundworkers lay down temporary stone haul roads so dumpers do not churn your lawn into a quagmire while excavating trenches. Concrete pours require frost blankets when temperatures drop towards freezing. We monitor weather radars daily to pour footings safely. A double storey extension in Corsham built during winter months simply requires disciplined ground protection and covered mortar bins.

Protecting Open Upper Ceilings

Stripping roof tiles exposes timber structures. High winds present genuine risks when upper gable ends stand unbraced, so scaffolders install heavy-duty monoflex sheeting around every working lift. Heavy tarpaulins anchor over exposed rafters every afternoon, keeping driving rain from soaking through upper bedroom ceilings while joists await final roofing felt.

Summer Heat Mortar Management

Sun dries brickwork too quickly. During hot summer weeks, mortar loses moisture before curing properly, creating weak joints in outer stone facing. Wetting bricks with a hose prevents them sucking water from the mix. We damp down fresh blockwork under hessian covers. Summer delivers longer daylight, speeding up the installation of upper floor joists and high-level fascia boards.

Get in Touch

Discuss Your Extension Plans

Two Levels, One Cohesive Build

A double storey extension is a significant decision for any homeowner, meriting a careful execution. We regard every extension as a meticulously planned project, focusing on structural integrity, material choice, and finishing details right from the ground up. With extensive experience in complex residential builds, we know how to expand your living space across two levels while maintaining the charm of your property. The outcome is a harmonious addition that feels integral, not an afterthought.

Complete Management, Full Accountability

From the first estimate to the final handover, your double storey extension is entirely managed by us. We orchestrate all necessary trades, ensuring structured communication and consistent scheduling across groundwork, framework, roofing, plumbing, and finishing stages. A project of this magnitude requires precise timing and collaboration-our approach revolves around those principles, giving you one point of contact for effortless oversight and clarity.

Local contact

Contact in Corsham

We work in Corsham and the surrounding areas, providing local expertise for your projects. Call us for a free estimate or visit us on site to discuss your needs. Our base in Henbury is about 25 miles away.

approx. 25 milesDistance from our base · Henbury

Call us+44 7723 542170Email usinfo@muchaconstruction.co.uk

We serve your areaCorsham and the surroundings

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What Our Clients Say

I've worked with Mucha Construction Ltd on various projects over the last 6 years and have found them consistently excellent in respect of work quality & efficiency and fair on price. No hesitation in recommending.

paul cannon
paul cannon5.0

very solid and reliable company 👌I RECOMMEND💪

Mariusz Ski
Mariusz Ski5.0

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.

Magda Reglewska
Magda Reglewska5.0

Our Services

Our Range of Services

One team, from groundworks to final finish. New builds, extensions, loft conversions and full renovations.

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OUR PROJECTS

Exceptional Results and Lasting Impressions

Each project by our Construction Company leaves clients with refined spaces, enduring quality, and elevated comfort.

Where We Operate

Mucha Construction Ltd delivers Construction Company services within a precise 20-mile radius of Bristol.

Frequently asked questions - Double storey extension