RAPTOR ROOFING & CONSTRUCTION LTD
Shortage of space in the kitchen or the need for an extra bedroom can be solved with a well-planned extension without moving. We build single-storey, double-storey, rear, side and wraparound extensions and carry out the roofing, brickwork and carpentry those projects require. Contact us for a survey so we can assess access, foundations and roofing interfaces and outline sensible next steps.
AN INTRODUCTION / 06
Extending your home is a practical way to create more space without moving. We carry out construction work for extensions and the necessary roofing and brickwork trades to make the new space weather-tight and useable.
Wanting more living space without relocating often makes an extension the right choice. On site we check access for plant and deliveries, how foundations and roof junctions will be handled, and which regulatory checks to expect. Tell us what you want the new room to do and we’ll inspect the property and provide a written outline of likely build steps and costs before any commitment.
EXPLORE THE OPTIONSOUR SERVICES / 06
Weighing single-storey, double-storey or a larger wraparound project changes foundations, roof connections and site logistics. We assess each option against your brief, access constraints and how the new work ties into your existing roof and walls.
Planning ground-floor enlargement for an enlarged kitchen, dining area or living room, a single-storey extension keeps structural change simpler than adding a storey. We match brickwork, install appropriate foundations and integrate the new roof so water runs correctly at junctions; if access is limited we plan deliveries and scaffolding to reduce disruption and keep the site safe.
ENQUIRE ABOUT THIS SERVICEAdding extra bedrooms or creating a larger footprint upstairs makes a double-storey extension the vertical option. We assess structural loads, connection details with the existing roof and whether foundations need strengthening; the design stage sets out floors, stair routing and rooflines so builders and any engineers have a clear scope.
ENQUIRE ABOUT THIS SERVICEOpening up a back-of-house layout or improving the link between indoor and outdoor living, a rear extension creates larger ground-floor space while leaving the public frontage unchanged. We plan for drainage, roof integration and deliveries through the garden, and ensure the new construction ties into existing walls and roofs to remain weatherproof throughout the build.
ENQUIRE ABOUT THIS SERVICEWidening a room or adding a utility through a side extension uses available plot width efficiently. We manage boundary issues, party wall requirements where relevant, and the structural join to the main building, with attention to roof junctions and matching external finishes so the addition sits comfortably beside the existing elevation.
ENQUIRE ABOUT THIS SERVICETo achieve maximum ground-floor enlargement, a wraparound extension combines side and rear works into a contiguous space. Sequencing walls, roof junctions and temporary weatherproofing is critical; we coordinate the roofing and brickwork so the expanded footprint becomes a secure, dry structure ready for internal trades.
ENQUIRE ABOUT THIS SERVICEOUR PROCESS / FOUR STAGES
Unsure where to start? Begin with a review of your aims on site; we then develop designs and handle the structural and roofing work needed to create a weatherproof shell ready for internal finishing. Each stage is planned around access and regulatory checks.
Contact us with photos and a postcode and we’ll arrange a site visit where possible to inspect access, roof junctions and foundation visibility. That visit identifies constraints such as narrow side access, boundary proximity or likely need for structural input so we can provide a realistic written scope and next steps.
Once the brief is clear we coordinate with your architect or drawing service to review layouts and roof details. We check whether the project is likely to need full planning permission or can proceed under permitted development and confirm which building regulation elements will affect roofing, drainage and insulation.
Once drawings and approvals are agreed, we prepare the site, dig foundations and build structural walls. Roofing work follows early to make the extension watertight: this includes trusses or flat roof builds and all junctions to the existing roof, with flashing and guttering installed to prevent leaks.
After the structure and roof are secure, we complete external finishes—brickwork, pointing, fascias and gutters—so internal trades can install insulation, electrics, plumbing and finishes. We review the finished external work with you to ensure the extension integrates with the existing property before the final sign-off.
WHY CHOOSE RAPTOR / WHAT MATTERS
Choosing to extend keeps you in the same location while delivering the space you need; the right build approach balances cost, disruption and daily use. We’ll discuss how different options affect both build logistics and the finished layout.
Needing an additional bedroom, a larger kitchen or a home office makes an extension a practical way to turn unused outdoor space into indoor living. We help choose the layout that gives the most usable floor area for your budget and advise on integrating roofing and insulation to create comfortable, energy-efficient rooms.
Staying in the neighbourhood but running out of space? Expanding the house keeps you in place while we plan the build logistics to limit disruption, scheduling noisy or invasive work only when necessary and putting site-management steps in place to protect your daily routine.
Plot shape or a particular brief can make a simple rear extension sensible or demand a more complex wraparound approach; we match the method to the site conditions. We assess access, boundaries and how roofing junctions must be handled so the finished extension performs well and connects neatly to the existing house.
INSIGHT / Practical Extension Advice
Deciding between extension types early reduces risk and makes quotes easier to compare. Ask which choices materially affect cost and build method so you can brief the right team.
Prioritising ground-floor living without altering the house height often makes a single-storey extension the most direct option; it involves straightforward groundworks and roof tie-ins and is the least intrusive structurally. A double-storey extension adds bedrooms but brings greater structural considerations—load paths, stair routing and interaction with existing roof members all need careful design. Rear extensions improve indoor-outdoor flow and typically allow construction from the garden, though limited depth or access can constrain size. Side extensions are useful for a utility or study but often sit close to boundaries and may require party wall agreements. Wraparound builds combine the complexities of side and rear works and need early resolution of roofing junctions, flashing and gutters so the new and old structures remain weatherproof. Start by listing required rooms, how you use the garden and which elevations are available to narrow the sensible options quickly.
Concerned about planning permission? Focus on the specific changes: increases in roof height, extensions beyond permitted development limits, or works to listed buildings usually need full planning consent. Building regulations cover all structural and thermal elements; priorities include appropriate foundations and detailing how new walls and roofs tie into the existing structure. Thermal performance, ventilation and fire safety influence insulation choices, window specification and internal layouts. In two-storey builds or where roof junctions are complex it is sensible to involve engineers so technical drawings align with building control expectations. If you prefer, we will work with your architect or planning agent to ensure our structural and roofing proposals match the submitted drawings and reduce the need for amendments during construction.
Assessing feasibility means thinking about access, boundaries and hidden conditions. Narrow side access or short driveways affect how materials and equipment arrive; we plan deliveries and temporary storage to avoid obstruction. Party wall matters are common and should be addressed early to set neighbour expectations and avoid hold-ups. Older properties can reveal unexpected issues once walls are opened; a pre-build structural survey flags potential underpinning or reinforcement so you can budget for them. Soil conditions influence foundation choice—clay or variable soils often require alternative approaches to control movement. Conservation area or listed building status limits design choices and may require specialist approval. Identifying these constraints through a survey lets us propose build methods that suit the site and reduce surprises as work progresses.
AREAS WE SERVE
Located in Welwyn Garden City, we cover the town and neighbouring areas in Hertfordshire including Hatfield, Hertford and Stevenage. Tell us where the property is and we’ll outline how site visits and logistics will be managed.
DISCUSS YOUR LOCATIONSTART THE CONVERSATION
Send us a few photographs and your postcode using the form, or give us a call. We will come back to you, arrange a survey where one is needed, and set out in writing what we recommend and why before any work is agreed.
QUESTIONS / HOUSE EXTENSIONS
Preparing to enquire? These answers cover common risks, access concerns and what to have ready so a survey or quote is useful.
ASK ANOTHER QUESTIONProvided the extension fits within permitted development limits and meets those conditions, planning permission may not be required; increases in roof height, significant footprint changes or properties in conservation areas commonly need full planning approval. Send your postcode and a sketch and we’ll indicate likely permission needs before detailed design work begins.
Gather clear exterior photos, a postcode, a brief description of the intended rooms and a budget range and we can give more focused initial advice. Include any existing floorplans or known planning history and note access constraints such as narrow drives that could affect deliveries or scaffolding.
Tell us at enquiry whether you need roofing, brickwork and associated carpentry or a full build package so we can confirm what we’ll carry out and what other trades should supply. We coordinate roofing and masonry with your architect or other contractors to reduce gaps between phases.
Restricted access changes delivery and scaffolding methods and can alter the build approach; boundary proximity and party wall agreements add administrative steps. Hidden structural issues or weak foundations discovered on survey may require additional work, so sharing photos and access details early reduces unexpected changes during construction.
Adding usable, well-finished space often increases appeal to future buyers, though value uplift depends on design, quality and local market conditions. Consider how the new layout will function for typical buyers in your area when deciding scope and finishes.
Requesting a survey lets us confirm practical constraints and roofing junctions on site; we then provide a written recommendation of the works we would perform and an outline of the main stages. That document helps you compare proposals and instruct the team you prefer without committing to start until the scope is agreed.
